product

Arduino Uno R3 (China)

Model No: ARD-00028

TK. 697.91

Availability: In stock

Quantity:

Category: Arduino & Accessories

Supplier: Made in China

 

Comes with 3 Days Replacement Warranty. Click here to check our warranty policy.


The package contains:

  • Arduino Uno R3(China) X 1
  • USB Programming Cable X 1

Add-Ons:

  • 3D Case for Arduino (Click here)

  • Acrylic Case for Arduino (Click here)

  • Acrylic UNO Base (Click here)

  • Shields (Click here)

Similar Products:

  • Arduino Uno R3 (Original) (Click here)

  • SparkFun RedBoard - Programmed with Arduino (Click here)

  • Arduino Uno PLUS, Improved Uno (Click here)

  • Sanguino TSB (Click here)

Microcontroller ATmega328P
Operating Voltage 5V
Input Voltage (recommended) 7-12V
Input Voltage (limits) 6-20V
Digital I/O Pins 14 (of which 6 provide PWM output)
Analog Input Pins 6
DC Current per I/O Pin 40 mA
DC Current for 3.3V Pin 50 mA
Flash Memory 32 KB (ATmega328) of which 0.5 KB used by bootloader
SRAM 2 KB (ATmega328)
EEPROM 1 KB (ATmega328)
Clock Speed 16 MHz

Question & Answer

Total 99 questions

Q: ami ki ei board e blank ATMEGA328 bosaiyya bootloder upload korte parbo? Questioned by mdjumethun, 24-Apr-2014

Yes. Answered by A.R, 26-Apr-2014 04:22 AM

Q: Ami driver install korta partasina , help me plz..... Questioned by babul_mhb, 18-May-2014

Connect your board to your computer. Then go to device manager and click on 'PORTS(COM PORT & LPT). The name of your arduino board will be shown here. Then right click>Update driver software>browse for driver software. Then show the location where you have installed your arduino software. Then the driver will be updated. Answered by A.R, 19-May-2014 06:55 AM

Q: Just bought yesterday (21/6/14) but techshop reduced the price almost 60 taka..... I am feeling unhappy about it! So far, working great ! Tested some analog digital I/O's with LED. Planning on making a LED Thermometer ! Questioned by suntop, 22-Jun-2014

আপনার কা‌ছে কি proteus ISIS 7 Professional আ‌ছে? থাক‌লে link টা দিন please । আমার খুব উপকার হ‌বে। Answered by mdzahangir, 20-Jun-2018 11:08 AM

Q: Hello Techshop Admin, 1.Will this board (Arduino Uno) support ATmegaA8 and ATmega168 micro controllers ? 2. Is ATmega328 and ATmega328P are same chip ? 3. If I buy ATmega328P micro controller form Techshop, will you burn the bootloader in it before shipping (for Arduino Uno R3 board) ? 4. Please check this link : http://arduino.cc/en/Tutorial/ArduinoToBreadboard Is this the method to burn bootloader in ATmega328P ? Please reply.... I will be waiting for your answers ! Questioned by suntop, 22-Jun-2014

আপনার কা‌ছে কি proteus ISIS 7 Professional আ‌ছে? থাক‌লে link টা দিন please । আমার খুব উপকার হ‌বে। Answered by mdzahangir, 20-Jun-2018 11:09 AM

Q: 1)Do you mean that you want to remove the Atmega328P from the board and place ATmega8 or 168 instead? If so, then the answer is No. 2. No. Pinouts are same but these two ICs have different signatures. 3. We are planning to sell Atmega328 with arduino bootloader. Those are supposed to be uploaded soon. 4. Yes. These methods will work. Questioned by A.R, 23-Jun-2014

আপনার কা‌ছে কি proteus ISIS 7 Professional আ‌ছে? থাক‌লে link টা দিন please । আমার খুব উপকার হ‌বে। Answered by mdzahangir, 20-Jun-2018 11:09 AM

Q: please help by answering those questions: 1. are all those AVR boards are more or less same? 2.can I remove the MCU with out desoldering? that means only by hand? 3. if the answer of question 2 is yes then;can i program it on that board and and remove it and then then install it on a breadboard to use it? 4.if the pinout config of any other MCU is same as the ATmega328, can i program it by this board? 5.on a site i noticed that it is possible to configure the bootloader form this board to non programed MCU on a bread board. pls tell me that this method is applicable for MCU with of same model or for every AVR MCU? 6. and the final question is: im actually a student from business studies so it is vary hard fro me to understand this items. is it possible to program this board with c or c++ ?(as those are the only languages that i know a little). and actually what kind of programming language is used to config that boards?? Questioned by saadman672, 26-Jun-2014

Very much confusing questions but I am trying to answer one by one: 1) Are you talking about our AVR programmers? If so, then let me tell you, each of the AVR prorammers available here has different technical features but the list of supported micrcontrollers are almost same which can be found at our website or at our suppliers' site. 2)Which MCU are you talking about?The programmer IC? That is the heart of every board! If you take that out your board will not work. However, Progammer ICs are not soldered to the board. So, those are removable. 4) Arduino is not meant for being used as an AVR programmer! 5) You will get the idea from here http://arduino.cc/en/Tutorial/ArduinoToBreadboard 6) I will request you to go through our basic tutorials on arduino if you have not gone through them yet. You will get the basic idea of coding. Answered by A.R, 27-Jun-2014 10:54 AM

আপনার কা‌ছে কি proteus ISIS 7 Professional আ‌ছে? থাক‌লে link টা দিন please । আমার খুব উপকার হ‌বে। Answered by mdzahangir, 20-Jun-2018 11:10 AM

Q: thanks bro :-) Questioned by saadman672, 27-Jun-2014

Q: Here is a secret : You can use Atmega8A instead of Atemaga328P in your UNO board and save 60% on MCU Please follow this link to burn boot loader: http://nirzaree.wordpress.com/2012/03/07/make-a-standalone-atmega8-circuit/ Limitation : Start up will be 8 sec slower Limited Memory (7.5 KB) Questioned by suntop, 05-Jul-2014

আপনার কা‌ছে কি proteus ISIS 7 Professional আ‌ছে? থাক‌লে link টা দিন please । আমার খুব উপকার হ‌বে। Answered by mdzahangir, 20-Jun-2018 11:15 AM

Q: does it come with the usb cable? Questioned by getloader, 14-Jul-2014

Yep ! I've got usb cable when I bought last month ! Answered by suntop, 14-Jul-2014 15:54 PM

Q: Recently I have bought Arduino Uno. But suddenly I have found that Arduino Mega 2560 has a lot more memory than Uno. Will there be any problem with less memory in Uno then Mega for small and medium project? If so, can I exchange my Uno with Mega 2560 and what is the procedure? Please explain. Thank you. Questioned by nazmul_eee, 05-Aug-2014

I don't know what you are planning to do ! But sticking with Arduino Uno is the better choice unless you need more than 14 I/Os (actually 20 I/Os). Because This Arduino Uno board is reusable, once you have programmed the AtMega328P MCU (the removable chip) you can remove it form the Uno board and use the chip on breadboard/PCB with your project. All you need will be a 16Mhz crystal and 2 22pf capacitors to run the chip outside Uno board. And connect your project components with the MCU's pins by following Datasheet ! Again, you can reuse your Uno board by putting a new AtMega328P MCU for another project (bootloader to be burned) ! In this way you save money ! 32kb is fair enough for most project unless you are doing advanced big projects ! From my personal experience I assure you less memory won't be a problem if you program efficiently. Go for Arduino Mega 2560 if your are 1.Connecting 1+ Display units 2.Going to code 300+ lines of codes 3. Need more than 100+ variables (specially unsigned long) 4.Need to control many separate processes This is my personal opinion so do as you please Please check this links if you stick with Arduino Uno http://arduino.cc/en/Tutorial/ArduinoToBreadboard one more think.... with Arduino Mega 2560, if you short circuit I/O your board may be dead forever, with Uno if you make mistake, probably spending 200 taka for AtMega328P MCU you may revive it again ! Answered by suntop, 05-Aug-2014 15:58 PM

You can return your Uno and order mega. You will get your money that you paid for uno back. Please note that we cannot return the vat that we took from you. And let us assure you that UNO works pretty fine in professional projects. Answered by A.R, 06-Aug-2014 05:05 AM

Q: Thanks for the information. Your last point sounds reasonable. I didn't think of mega 2560's compactness. Uno board IC is removable. But mega doesn't provide this facility. Questioned by nazmul_eee, 11-Aug-2014

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Q: what else is shipped along with the Uno? I mean, USB, Power supply or anything like users manual? Questioned by sharfuddin.shawon, 12-Aug-2014

This one has an USB cable with the board. Answered by A.R, 13-Aug-2014 04:14 AM

till when will i get it if i choose home delivery? Answered by sharfuddin.shawon, 13-Aug-2014 08:01 AM

Please go through our shipping policy http://www.techshopbd.com/about-us/support#shipping_policy You will get all details here. Answered by A.R, 13-Aug-2014 09:08 AM

আপনার কা‌ছে কি proteus ISIS 7 Professional আ‌ছে? থাক‌লে link টা দিন please । আমার খুব উপকার হ‌বে। Answered by mdzahangir, 20-Jun-2018 11:18 AM

Q: can i use arduino instead of Atmega8 micro controller.plz give me ans as son as possible.our project is density base traffic controlling system. Questioned by ekhlasturzo, 18-Aug-2014

You can do your project with any microcontroller or arduino. It depends on how you design your circuit. Answered by A.R, 19-Aug-2014 04:24 AM

Q: I am going to share a link, from where you can learn to interface Arduino with Windows PC for data logging and interfacing arduino with windows programs It's called GoBetweeno here is the link http://playground.arduino.cc/Interfacing/GoBetwino Questioned by suntop, 21-Aug-2014

Q: can i have access to use it in windows 8.0???? Questioned by singwang, 21-Aug-2014

Yes. But there are some special instructions for that. Here goes the video tutorial.https://www.youtube.com/watch?v=CdE72XUYC7k#start=0:00;end=2:25;cycles=-1;autoreplay=false;showoptions=false Answered by A.R, 23-Aug-2014 04:12 AM

Q: 1. What the difference between Arduino Uno R3 (China) VS Original Arduino Uno R3? 2. Why does the original cost TOO much? 3. Is Chinese one compatible with win 8.1 64 bit? Questioned by anikpro, 06-Sep-2014

1) Original one is made by Arduino ,Italy and Chinese one is made in China as their names suggest. 2)Quality never costs chip. You can verify the price from arduino.cc and the page link of our supplier,sparkfun. 3. As far as we know these are compatible with windows 8. But special instructions must be followed ashttps://www.youtube.com/watch?v=CdE72XUYC7k#start=0:00;end=2:25;cycles=-1;autoreplay=false;showoptions=false Answered by A.R, 06-Sep-2014 04:41 AM

Q: Can i use it like a burner or programmer for avr series micro controller. Questioned by Nadimulhuq, 10-Sep-2014

No. Answered by A.R, 10-Sep-2014 08:33 AM

Yes, you can ! Check this youtube video http://www.youtube.com/watch?v=_ZL-YNOH_jA Answered by suntop, 03-Nov-2014 16:52 PM

Q: i have bought it recently, but there were no power supply,where can i get a power supply for arduino uno r3, what is the specification(voltage/current requirement of arduino) of it. thanx Questioned by Hasnat Jamil, 29-Sep-2014

There are few ways you can power it up : First and the most common method is to power it from USB port of your computer For, portable applications use a 9 V battery with LM7805/LD1117/78L05 voltage regulator to get 5 volts For static & continuous application use any 5V adapter with at least 300-500 mA current output. You may use your cellphone charger too ! (check voltage before powering) Answered by suntop, 30-Sep-2014 07:15 AM

If you want to power the uno using its on board power port use DC power jack and supply DC voltage between 7-12 Volts. + inside (hole) - outside (outer shell) Answered by suntop, 30-Sep-2014 07:19 AM

thanks :-) Answered by Hasnat Jamil, 30-Sep-2014 07:40 AM

that means if i connect it with PC i don't have to connect any extra power supply? Answered by Hasnat Jamil, 30-Sep-2014 07:44 AM

Yeah. exactly. Answered by A.R, 30-Sep-2014 08:22 AM

Q: does it work with windows7 64 bit......do i need 64 bit arduino software..... Questioned by singwang, 29-Sep-2014

It is compatible with 64-bit. This video should be followed. https://www.google.com.bd/url?sa=t&rct=j&q=&esrc=s&source=video&cd=2&cad=rja&uact=8&ved=0CCAQtwIwAQ&url=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DzH7ySNNenAE&ei=f2gqVMLSMoigugTQ64HwBw&usg=AFQjCNHa___athsyOFRcooEOcv85CrghEw&bvm=bv.76477589,d.c2E Answered by A.R, 30-Sep-2014 08:24 AM

Q: does it require upgraded 64bit arduino software Questioned by singwang, 29-Sep-2014

Please see the reply above. Answered by A.R, 03-Nov-2014 19:06 PM

Q: Will you provide usb cable? Questioned by mahbub77, 03-Nov-2014

Yes. Answered by A.R, 03-Nov-2014 19:05 PM

Q: Anyone here who can give me some lessons on arduino?? https://www.facebook.com/tawsif.ahmed1 Add me up..Lets discuss Questioned by Tawsif33, 03-Nov-2014

Q: What accessory include with uno R3? Questioned by mdibnehasan, 09-Dec-2014

This one comes with an USB cable. Answered by A.R, 10-Dec-2014 04:38 AM

Q: whats differences between arduino uno and uno R3 Questioned by mdibnehasan, 10-Dec-2014

R3 is the updated version. Answered by A.R, 11-Dec-2014 03:21 AM

Q: ae board diye ki atmega8 program kora jabe ? r ki vabe ? Questioned by robinahmedotul, 22-Dec-2014

See this. http://forum.arduino.cc/index.php?topic=123818.0 Answered by A.R, 23-Dec-2014 05:40 AM

http://nirzaree.wordpress.com/2012/03/07/make-a-standalone-atmega8-circuit/ or http://vas32.blogspot.com/2014/01/arduino-uno-r3-whit-atmega8a-pu-from.html or http://www.hackmeister.dk/2011/01/new-bootloader-file-for-atmega8l/ or you can leave leave your contact for getting one from me (OptiBootloader version Atmega 8A/8L) Answered by suntop, 24-Dec-2014 05:29 AM

Q: ami ae board diye atmega 8L program korte pereci but akbar amar nijer project upload korlam khub sohojei hoya gelo tar por abar burn korlam abar holo but tar por ar hocce na burning done hocce. upload done hocce but output hoccena.. ata ki problem bujhte parcina. akhon amak ki korte hobe aktu janaben please. chip ta ki arise korte hobe naki amar chip ta nosto hoyegelo ? jodi arise korte hoy tahole ki korbo ? Questioned by robinahmedotul, 26-Dec-2014

Well, Atmega8L is actually intended for up to 8Mhz clock although it worked for me @ 16 Mhz. You may try on breadboard with 8Mhz xtal . Also reburn the boot loader and try again . make sure reset pin is pulled up to Vcc with 10 k resistor . check connections. Most importantly select the right board from your Arduino IDE and update your arduino 'board text ' with proper Chip parameters (see Google ) . upload holae kaj hobe amon kono kotha nai ! Answered by suntop, 26-Dec-2014 20:11 PM

Q: sorry arise ar jagay erase hobe Questioned by robinahmedotul, 26-Dec-2014

Bapar na ! Correct howa tai abnormal ! Answered by suntop, 26-Dec-2014 20:15 PM

Q: arduino IDE theke "NG or older w/ ATmega8" ae board diye kaj korecilam & kajo hoice.ata jodi right board na hoy tahole please right board ta kotha theke download korbo aktu janaben please. Questioned by robinahmedotul, 30-Dec-2014

Open this file C:/Program Files/arduino/hardware/arduino/boards.txt and at the end paste : ############################################################## # Custom board "Arduino Optiboot8" # Arduino uno r3 ATMEGA8A-PU opti8.name = Arduino Optiboot8 opti8.upload.protocol = Arduino opti8.upload.maximum_size = 7680 opti8.upload.speed = 115200 opti8.bootloader.low_fuses = 0xBF opti8.bootloader.high_fuses = 0xcc opti8.bootloader.path = optiboot opti8.bootloader.file = optiboot_atmega8.hex opti8.bootloader.unlock_bits = 0x3F opti8.bootloader.lock_bits = 0x0F opti8.build.mcu = atmega8 opti8.build.f_cpu = 16000000L opti8.build.core = arduino opti8.build.variant = standard Now burn bootloader using as usual method selecting "Arduino Optiboot8" as board ! Note : When you are first uploading the ArduinoISP sketch, select board "Arduino UNO" or whatever is your actual board is ! Next, when you are about to burn the bootloader on virgin Atmega 8A using the main board as ISP (In System Programmer) change the board name to "Arduino Optiboot8" before clicking "Burn Bootloader" Answered by suntop, 30-Dec-2014 16:47 PM

Old Breadboard ( with loose holes), blunt male2male jumper cables can and will create loose connections. With loose connections burning will not proceed ! Use fresh/new Breadboard or Zif socket (28 pin) for such purposes ! Answered by suntop, 30-Dec-2014 16:52 PM

Q: atmega8L k program korar por MCU ta start nite 10-12 cknd somoy lagce ! ata ki jonno hocce ? aktu janaben please,, Questioned by robinahmedotul, 05-Jan-2015

Q: ami blink led upload koreci. sobi tik hocce but 10 theke 12 second somoy por led blink start hocce. atku somadhan chai please... Questioned by robinahmedotul, 05-Jan-2015

Q: can i use 9volt bettery to power up the arduino uno board?? Questioned by fizur2, 06-Jan-2015

Yes ! There is a black power port on arduino board (Female port, hole is + and wall is - ) which can be fed 6-20 Vdc . so 9v batt will work. Answered by suntop, 07-Jan-2015 20:20 PM

Q: bro.. upore bola somossar ki kono somadhan deya jay please... Questioned by robinahmedotul, 07-Jan-2015

You are using old bootloader on your chip (NG / Atmega8) . if you can follow the instructions above about burning Optiboot8 follow that ! There is nothing wrong with the delay you are getting right now ! If was a feature useful in old days , that was used by arduino to wait for new sketch during startup ! Either burn new bootloader or don't ! (Check my 30 the DEC post ) Answered by suntop, 07-Jan-2015 20:15 PM

Q: eta kotodiner moddhe available hote pare? Questioned by noid.pavel, 10-Jan-2015

Q: Best arduino ever... Questioned by meraz7, 20-Jan-2015

Q: Does it use to burn a PIC16F876A? Questioned by san953, 14-Feb-2015

What?! Arduino as a PIC burner??? In which planet is it done? Answered by A.R, 15-Feb-2015 03:42 AM

Q: ei board ta kinte chai, kivabe kinbo, bolben please Questioned by Kaysar, 16-Feb-2015

Please order according to this shopping guideline. https://www.techshopbd.com/uploads/product_document/How%20to%20shop%20from%20techshopbd.pdf Answered by A.R, 16-Feb-2015 11:59 AM

Q: I bought an arduino uno r3(china) through online shop. It was working well. To upload program i used com 3 port of my pc. But today when i connected usb port it say "usb device not recognized". I tried installing arduino driver several times but every time it says unknown device. I also tried in another pc. But still i cant establish connection.If i power up the arduino using usb or dc power the program i previously uploaded runs just fine. But i'm not able to upload program any more. What could be the possible reason? Can u provide any assistance if i bring it to ur office. Questioned by marzouk107dc, 05-Mar-2015

You bought that from us? When? If before 6 months or less Please bring the device along with your invoice. We will check that and give the possible solution. Answered by A.R, 08-Mar-2015 06:09 AM

Okay brother i'll bring it very soon.I bought it on 21-11-14 from techshop Answered by marzouk107dc, 08-Mar-2015 16:44 PM

Q: Are you sure that,I will not be getting a faulty product. If I do get a faulty one then would you replace it? Questioned by ayman123, 25-Mar-2015

We replace if the product is faulty from the beginning. Answered by A.R, 28-Mar-2015 05:45 AM

Q: Can I replace the Arduino's ATmega328P with a bootloaded ATmega328P Questioned by phsajal, 22-Apr-2015

Q: Can I replace the Arduino's ATmega328P with a bootloaded ATmega328P Questioned by phsajal, 22-Apr-2015

Yes. Answered by A.R, 23-Apr-2015 15:33 PM

Q: ami arduino te program upload korte parsi na, plz help me Questioned by abubakar, 06-May-2015

You bought it from us? What is your invoice number and what's the problem? Answered by A.R, 07-May-2015 04:36 AM

Q: Does this come with a power jack or would I have to buy the jack separately? Questioned by swapnilsayansaha, 22-Jun-2015

Jack??? Answered by A.R, 22-Jul-2015 03:39 AM

Q: Can i program this with ArduinoDroid - Arduino IDE app on my android OTG supported tablet. Questioned by Harrydevil, 14-Jul-2015

Q: Can i program this with ArduinoDroid - Arduino IDE app on my android OTG supported tablet. Questioned by Harrydevil, 14-Jul-2015

Never tested. Answered by A.R, 22-Jul-2015 03:38 AM

Q: Arduino uno r3 etar sathe ki ony arduino ar cable pawa jabe naki aro kisu ase etar sathe ???? Questioned by Hasib001, 12-Aug-2015

Only cable included. Answered by A.R, 13-Aug-2015 05:41 AM

Q: Hello techshopbd, amar arduino uno R3 ar atmega328p chip ta damage hoye gase. ki korle arduino board ta aabar ager moto kaj korbe? Only Techshop theke akta atmega328p chip kine board a lagale ki kaj korbe naki Notun atmega328p chip ti ke burn korte hobe? if yes, then how? Questioned by faizulcse, 13-Aug-2015

এই চিপটা বসিয়ে দিলেই চলবে।https://www.techshopbd.com/product-categories/avr/1538/atmega328p-chip-with-arduino-bootloader-techshop-bangladesh Answered by A.R, 16-Aug-2015 05:09 AM

Q: Ai china versoner ki kono guarantee ba warranty Ache?? I Mean Damage Hole ki replace ba servicing Hobe?? Questioned by amantu, 01-Sep-2015

Q: its cheap here: http://www.bdspeedytek.com/product/arduino-uno-r3/ Questioned by rahadsharif, 07-Nov-2015

this is not there this should be here http://www.bdspeedytech.com/product/arduino-uno-r3/ and for 650 taka Answered by salim.sadman111, 26-May-2016 14:17 PM

Q: Arduino uno r3 etar sathe ki cable pawa jabe? Questioned by syednoman, 17-Nov-2015

This one has cable. Answered by A.R, 17-Nov-2015 08:36 AM

Q: Arduino uno r3 (China) Kobe available hobe? Please answer. Questioned by Dipalimallik, 28-Nov-2015

This week hopefully. Answered by A.R, 29-Nov-2015 04:15 AM

Q: Can I remove atmega 328 microcontroller from the arduino uno board and replace it with another atmega 328 chip? Questioned by Dipalimallik, 03-Dec-2015

Yes. Make sure that the chip contains arduino bootloader. Answered by A.R, 07-Dec-2015 04:23 AM

Q: This is a fake ardruino.Ardruino is an open source hardware and everyone can assemble their own.....the component beside the usb port is supposed to be golden,not green as shown in the picture. https://youtu.be/5F054MNB1QI See how to detect a real one...techshop feed common people gibberish bullshit and rip them off. Questioned by Redowan, 18-Jan-2016

Excuse us, aren't we crystal clear enough by writing china within the bracket? Everyone knows and understands that it is a chinese copy. How is someone supposed to get real arduino in 850 Taka only? Come on! Of course we sell the real one and here goes the link. https://www.techshopbd.com/product-categories/boards/1281/arduino-uno-r3-original-techshop-bangladesh We do fair business exposing the origin of the products so that people can distinguish and take decision. It's not our responsibility if someone still fails to understand. Answered by A.R, 19-Jan-2016 03:46 AM

Q: এটার সাথে কি আপনারা প্রয়োজনিয় software DVD তে দিয়ে দেন? Questioned by arig12152002, 15-Feb-2016

আরডুইনোর কোনো বোর্ডের সাথে কখনই কোনো সফটওয়ার দেওয়া হয় না। ওটা সবসময়ই আরডুইনোর ওয়েবসাইট থেকে নামাতে হয়।এই বোর্ডের সাথে ইউএসবি ক্যাবল ছাড়া আর কিছু নেই। Answered by A.R, 16-Feb-2016 03:48 AM

Q: what is the difference between arduino uno china vs original? Questioned by nithon, 11-Mar-2016

Original is Italian. Answered by A.R, 12-Mar-2016 05:05 AM

Thanks for reply. I know the country of origin difference but I want to is there any technical difference which can make problem? Answered by nithon, 12-Mar-2016 05:50 AM

Original is always better. This is good too. Answered by A.R, 12-Mar-2016 05:55 AM

Q: How will I get the USB cable for arduino UNO? Questioned by Sabrina2, 15-Mar-2016

Chinese UNO has cable with it. Answered by A.R, 16-Mar-2016 04:00 AM

Q: Ami apnader kase 1ta arduino kenasi amar kase 1ta 12v 1amp transformer ase ami ki apnader 9-18v breadboard power supply diye arduinote conection dite parbo... Questioned by babulakhtar, 30-Mar-2016

Ami apnader kase 1ta arduino kenasi amar kase 1ta 12v 1amp transformer ase ami ki apnader 9-18v breadboard power supply diye arduinote conection dite parbo... Answered by babulakhtar, 30-Mar-2016 08:17 AM

12v dc current sorasori din 9-18v breadboard power supply lagbe na Answered by salim.sadman111, 26-May-2016 14:09 PM

Q: int homes1 = 2; // connected from arduino pin 2 to signal of optocupler sensor int dirpin1 = 8; // arduino Uno pin 8 to easy driver dir int steppin1 = 9; // pwm to pin for arduino Uno pin 9 to easy driver steps void setup() { pinMode(dirpin1, OUTPUT); pinMode(steppin1, OUTPUT); pinMode(homes1,INPUT_PULLUP); digitalWrite(dirpin1, LOW); delay(100); int i; for (i = 0; i<12500; i++) // Iterate for 4000 microsteps { digitalWrite(steppin1, LOW); digitalWrite(steppin1, HIGH); delayMicroseconds(100); if(digitalRead(homes1=HIGH)) //this command i considered here normally home sensor //value is zero(less than 2 dc volt) but when motor goes to home position it gives high value (ie 4.1 dc voltage) break; } } void loop() { digitalWrite(dirpin1, LOW); // stepper move forward direction delay(100); int i; for (i = 0; i<11500; i++) // Stepper motor move 11500 microsteps forward direction { digitalWrite(steppin1, LOW); digitalWrite(steppin1, HIGH); delayMicroseconds(100); } digitalWrite(dirpin1, HIGH); // stepper move reverse direction delay(100); int i; for (i = 0; i<11500; i++) // stepper move for 4000 microsteps reverse direction { digitalWrite(steppin1, LOW); digitalWrite(steppin1, HIGH); delayMicroseconds(100); } this code dot work ? have you any solution .please call me 01716695049 Questioned by arifur1414, 07-Apr-2016

Q: int homes1 = 2; // connected from arduino pin 2 to signal of optocupler sensor int dirpin1 = 8; // arduino Uno pin 8 to easy driver dir int steppin1 = 9; // pwm to pin for arduino Uno pin 9 to easy driver steps void setup() { pinMode(dirpin1, OUTPUT); pinMode(steppin1, OUTPUT); pinMode(homes1,INPUT_PULLUP); digitalWrite(dirpin1, LOW); delay(100); int i; for (i = 0; i<12500; i++) // Iterate for 4000 microsteps { digitalWrite(steppin1, LOW); digitalWrite(steppin1, HIGH); delayMicroseconds(100); if(digitalRead(homes1=HIGH)) //this command i considered here normally home sensor //value is zero(less than 2 dc volt) but when motor goes to home position it gives high value (ie 4.1 dc voltage) break; } } void loop() { digitalWrite(dirpin1, LOW); // stepper move forward direction delay(100); int i; for (i = 0; i<11500; i++) // Stepper motor move 11500 microsteps forward direction { digitalWrite(steppin1, LOW); digitalWrite(steppin1, HIGH); delayMicroseconds(100); } digitalWrite(dirpin1, HIGH); // stepper move reverse direction delay(100); int i; for (i = 0; i<11500; i++) // stepper move for 4000 microsteps reverse direction { digitalWrite(steppin1, LOW); digitalWrite(steppin1, HIGH); delayMicroseconds(100); } this code donot work ? have you any solution .please call me 01716695049 .Here I used a optocopler Nema17 and easy driver. Questioned by arifur1414, 07-Apr-2016

Q: Ami arduino uno r3 techshop theke 1 mash ageee kinesi... kintu hotat kore ekhon etate ami notun kono programme upload dite parsee na.. karon amr pc.. arduino ke detect korte parsee na.. Arduino IDE SOFTWARE a amr arduino ke com port a connected e dekhasse na.. arduino forum a ai problem na nai ektu ghataghati korar por deklam je... etake unstable arduino howar problem bolse... mne arduino agee thekei falty ba unstable silo.. Ekhon ami a bisoye Techshop bd er pokkho theke proper help kamona korse. Thank you. Questioned by alifahmed, 26-Apr-2016

Dear, we are always sincere about our customers. According to our return policy, if you have any problem for interfacing with our product, you have to inform us within 7 days from your product received date. [Hence: TechShop Bangladesh provides life-time service warranty for only our own products, not supplier products.] Answered by FAHIM_REAZA, 27-Apr-2016 12:27 PM

Q: Chinese আর original এর মধ্যে কি শুধু দাম আর quality পার্থক্য নাকি দুটার function দুরকম? Questioned by Suny000, 28-Apr-2016

Yes you are absolutely right. There is no functional difference between them. Answered by FAHIM_REAZA, 02-May-2016 05:10 AM

i am confused.which one is correct? Nithon | Mar 11,2016 at 05:40 PM what is the difference between arduino uno china vs original? Reply anon A.R | Mar 12,2016 at 11:05 AM Original is Italian. Reply anon Nithon | Mar 12,2016 at 11:50 AM Thanks for reply. I know the country of origin difference but I want to is there any technical difference which can make problem? Reply anon A.R | Mar 12,2016 at 11:55 AM Original is always better. This is good too. Answered by salim.sadman111, 28-May-2016 16:19 PM

Original টা যদি better ই হয় তবে কোন দিক দিয়ে better জানতে পারি? Answered by salim.sadman111, 28-May-2016 16:23 PM

Q: Can not import pyfirmata library to the interpreter.Have uploded firmata sketch successfully. have tried all possible way i know. "pip install pyserial", "import serial" successfully hoyeche. But pyfirmata import korle import error dicche"no module named pyfirmata". Problem bujhty parci na. Help! Questioned by Nandini, 15-May-2016

Q: please help. my arduino is not connecting on my pc. what to do? Questioned by Redwan007, 13-Jul-2016

Dear customer, if you have a problem with our products and if you have make a complain about this products to us between 7 days from your shipping date, then we will replace it with a new one. Thank you. Answered by FAHIM_REAZA, 23-Jul-2016 04:16 AM

Q: Will there a USB cable with it when I buy an Arduino Uno Questioned by fazlyfardinchowdhury, 30-Jul-2016

Yes. Answered by FAHIM_REAZA, 31-Jul-2016 03:57 AM

Q: I bought a Arduino Uno from here, then i tried to boot-load a ATmega328P but it failed. After i swapped the ICs every thing stopped working. So if i buy a bootloaded IC ATmega328 will my arduino work again or i need to buy another one?? Questioned by Reddhi, 31-Jul-2016

The "ATmega328p" on arduino, is pre-installed boot-load system. So why you are trying to boot-load. From your above comment, we are not clear that the problem is on "ATmega32p" or "Arduino Development Board" !!! If the problem occur in the "ATmega328p" chip, then if you buy a boot-loaded ic, it will be work again. To buy a boot-loaded ic, please click the link bellow: Link = https://www.techshopbd.com/product-categories/avr/1538/atmega328p-chip-with-arduino-bootloader-techshop-bangladesh Thanks for with us. Answered by FAHIM_REAZA, 03-Aug-2016 10:48 AM

Q: স্যার, আমি আপনাদের কাছ থেকে একটি ' Arduino UNO R3 কিনেছি।সেটায় একটা সমস্যা দেখা দিয়েছে। সমস্যাটি হল: অরডুইনোটি যথারীতি আপগ্রেড দেওয়ার পর প্রায় সিব টিউটোরিয়াল এর সাজেশন অনুযায়ী আমি 'Blink' প্রোগ্রামটি আপলোড দেই এবং সেটি ঠিকমতোই কাজ করছে।কিন্তু সমস্যা হল,এখন আর কোনো নতুন প্রোগ্রাম আপলোড নিচ্ছে না।যেখানে আপলোড সেকেন্ডের কাজ,সেখানে প্রায় ৫ মিনিট ধরে আপলডিং দেখিয়ে এরপরে শো করে,"Uploading eror" অথবা "problem uploading the board " অনেকবার অনেকভাবে চেষ্টা করেছি। অরডুইনো সফটওয়্যারটি আনইন্সটল করে আবার ইন্সটল করেছি,বারবার আপলোড করার চেষ্টা করেই যাচ্ছি,একই অবস্থা। কি করা উচিত আমার??? প্লিজ একটু সাহায্য করুন!!! Questioned by ahsanhabibanik1998, 24-Aug-2016

Please contact with our engineers of "TechShopBD Technical Team". Email: [email protected] Cell: +8801833168171 Thanks for with us. Answered by FAHIM_REAZA, 28-Aug-2016 03:16 AM

thank you sir Answered by ahsanhabibanik1998, 28-Aug-2016 11:23 AM

You are most welcome. Answered by FAHIM_REAZA, 04-Sep-2016 04:13 AM

Q: What is the difference of it with Arduino Duemilanove??? Questioned by Anindya11, 26-Aug-2016

Follow the specifications. Answered by FAHIM_REAZA, 28-Aug-2016 03:15 AM

I cant find please can you make me understand by easier language? Answered by Anindya11, 28-Aug-2016 08:55 AM

Q: I am disappointed with this product. I ordered a Arduino last sunday , the built in led was not blinking, the rx and tx was not responding. Then i changed it and now most probably because of the bootloader the pin 13 led is always on . I am currently working on a ir reciever project and i am getting junk values on the serial monitor . This is what i did: i connect the middle pin to GND pin 3 to vcc and pin 1 of the ir receiver to pin 11 of the arduino /* * IRremote: IRrecvDemo - demonstrates receiving IR codes with IRrecv * An IR detector/demodulator must be connected to the input RECV_PIN. * Version 0.1 July, 2009 * Copyright 2009 Ken Shirriff * http://arcfn.com */ #include <IRremote.h> int RECV_PIN = 11; int before = 0; int led = 12; //int led2 = 13; IRrecv irrecv(RECV_PIN); decode_results results; void setup() { Serial.begin(9600); pinMode(led,OUTPUT); irrecv.enableIRIn(); // Start the receiver //pinMode(led2,OUTPUT); //digitalWrite(led2,LOW); } void loop() { if (irrecv.decode(&results)) { Serial.println(results.value, HEX); if(results.value==0xB3433BC7) { if(before==0) { digitalWrite(led,HIGH); before = 1; } else { digitalWrite(led,LOW); before=0; } } irrecv.resume(); // Receive the next value } delay(100); } Questioned by Reddhi, 27-Sep-2016

Code is totally your concern. If you think the board is faulty, please return it with the invoice as soon as possible. We will check that and give you the possible solution. Please note that guarantee of foreign products must be claimed within 7 days. Answered by A.R, 28-Sep-2016 03:52 AM

The thing is, I already got an arduino which was faulty and then techshop replaced it and said that they have cheeked it and its working. Answered by Reddhi, 28-Sep-2016 09:39 AM

That is quite weird because before giving a replacement we double check the new product. Is the product bad from the beginning or stopped working all in a sudden? Answered by A.R, 29-Sep-2016 04:27 AM

I know that, the arduino was opened when i received it. At first i tried the blink sketch it worked, then i tried a digital read sketch that worked but then i noticed that the pin13 led was still blinking but the sketch worked. But when i tried to serial communicate using a ir receiver i could not get the values , suddenly i used to get a value .The board also has a bright red led instead of the green one. Answered by Reddhi, 30-Sep-2016 13:20 PM

Q: is it possible to load atmega8a controoller using UNO3? if yes plz help how? Questioned by salekmondal, 29-Sep-2016

Please see here. http://www.youtube.com/watch?v=_ZL-YNOH_jA Answered by A.R, 29-Sep-2016 03:56 AM

Q: How to make software serial communication with UNO3? Questioned by salekmondal, 29-Sep-2016

https://www.arduino.cc/en/Reference/SoftwareSerial Answered by A.R, 29-Sep-2016 03:52 AM

Q: এইটার সাথে কম্পিউটার কেবল সাথে দেয়া হয় নাকি আলাদা কিনতে হয়... Questioned by mahfuzdot, 02-Oct-2016

ইউএসবি কেবল সাথে আছে। Answered by A.R, 02-Oct-2016 04:09 AM

Q: After installing the arduino software, when I tried to open a .INO file I failed, because the software said "could not open the sketch"........what should I do??? Questioned by ShafinRubaer, 11-Oct-2016

Hello, what is your OS? Answered by A.R, 11-Oct-2016 07:29 AM

Windows 8 Answered by ShafinRubaer, 11-Oct-2016 07:31 AM

Sorry to disturb..... Just found out the problem..... The file name had spaces in it so the software was not recognising it..... Answered by ShafinRubaer, 11-Oct-2016 11:41 AM

Follow these videos please. https://www.google.com.bd/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=arduino+in+windows+8&tbm=vid Answered by A.R, 13-Oct-2016 03:58 AM

Q: ami aj Friday October 21 e Arduino kineci but ata driver pacce na... Specification theke driver download kore try koreci but kaj korce na... plz help korun Questioned by Badhon, 20-Oct-2016

Q: r ata ami window 7 e try korci.. x86 x64 2 tai try koreci but kaj hocce na Questioned by Badhon, 20-Oct-2016

Apnar problem ta thik bujhlam na..... Ki hocche na? Arduino board ta pacche na? Naki Arduino IDE install hocche na Answered by ShafinRubaer, 12-Dec-2016 01:27 AM

Q: I have a question regarding battery. Can i use a 12V 2500 miliamp battery to run the arduino directly? will the amp fry the board? thank you Questioned by Abhijit92, 28-Dec-2016

Please see the specification section. The current capacity is only 40mA per channel. Answered by A.R, 29-Dec-2016 11:46 AM

Q: Which language can be used for programming this board?Thank you. Questioned by bakarAbu, 29-Dec-2016

Arduino has its own IDE and language based on C. Answered by A.R, 29-Dec-2016 11:44 AM

Q: Thank you Questioned by bakarAbu, 13-Jan-2017

Q: Ami 22september ,2016 arduino uno China kini . Er por ekta project o banai. Kintu amar arduino board ekhon kaj korse na ebong notun kono program upload o hocche na. Questioned by md.nakib, 21-Feb-2017

Q: Plz ektu taratari uttor pele valo hoto. Ar ektu bolben kono onso damage hoye geche kina ta kivabe buzbo? Amar boarder led o tx light jolche na. Questioned by md.nakib, 22-Feb-2017

গতকাল সরকারি ছুটির পর আজই সকাল নয়টায় অফিস খুলেছে। যাহোক, কোড যখন আপলোড হচ্ছেই না তখন বুঝতে হবে বোর্ডে সমস্যা অবশ্যই আছে। সমস্যাটা যদি ইউএসবি টু সিরিয়াল কনভারটারের পার্টে হয় তাহলে আপনার বোর্ডটি পিসির সিরিয়াল পোর্টে ডিটেক্টই করবে না। আর যদি বোর্ড ডিটেক্ট করা সত্বেও কোড আপলোড না হয় তাহলে Atmega328P চিপসহ অন্য যেকোনো কম্পোনেন্ট নষ্ট হয়ে থাকতে পারে। Atmega328P চিপটা রিপ্লেস করে দেখতে পারেন। Answered by A.R, 22-Feb-2017 04:06 AM

Q: program upload করলে tx জ্বলে থাকে কারন কি। Questioned by aminur651884, 09-Apr-2017

আপনি যে প্রোগ্রাম আপ করেছেন সেটাই যদি সিরিয়াল পোর্ট দিয়ে কোনো ডাটা পাঠান তাহলে জ্বলে থাকবে। Answered by A.R, 10-Apr-2017 06:17 AM

ধন্যবাদ। দেখি আবার চেষ্টা করি। Answered by aminur651884, 11-Apr-2017 14:51 PM

Q: power connection pacche na Questioned by Toki123, 01-May-2017

Q: Can I handle it by android phone?? thanks. Questioned by Ashraf.tech70, 18-May-2017

Q: আমার arduino বোর্ডের tx LED এবং rx LED Blink করছে না। কম্পিউটার বোর্ডটিকে recognise করতে পারছে না।দয়া করে বলবেন,,,এখন আমার কি করা উচিত?আমি কিছুদিন আগেই টেকশপ বিডি থেকে আর্ডোইনোটি কিনেছি।প্রথমে কিছু সাধারণ প্রোগ্রাম কাজ করেছে,,,কিন্তু হঠাত প্রোগ্রাম upload করা যাচ্ছে না।এখন আমার করণীয় কি? Questioned by Mohammed_Nazrul_Islam, 19-Jun-2017

Q: আমার arduino বোর্ডের tx LED এবং rx LED Blink করছে না। কম্পিউটার বোর্ডটিকে recognise করতে পারছে না।দয়া করে বলবেন,,,এখন আমার কি করা উচিত?আমি কিছুদিন আগেই টেকশপ বিডি থেকে আর্ডোইনোটি কিনেছি।প্রথমে কিছু সাধারণ প্রোগ্রাম কাজ করেছে,,,কিন্তু হঠাত প্রোগ্রাম upload করা যাচ্ছে না।এখন আমার করণীয় কি? Questioned by Mohammed_Nazrul_Islam, 19-Jun-2017

Q: আমার arduino বোর্ডের tx LED এবং rx LED Blink করছে না। কম্পিউটার বোর্ডটিকে recognise করতে পারছে না।দয়া করে বলবেন,,,এখন আমার কি করা উচিত?আমি কিছুদিন আগেই টেকশপ বিডি থেকে আর্ডোইনোটি কিনেছি।প্রথমে কিছু সাধারণ প্রোগ্রাম কাজ করেছে,,,কিন্তু হঠাত প্রোগ্রাম upload করা যাচ্ছে না।এখন আমার করণীয় কি? Questioned by Mohammed_Nazrul_Islam, 19-Jun-2017

Q: আমার arduino বোর্ডের tx LED এবং rx LED Blink করছে না। কম্পিউটার বোর্ডটিকে recognise করতে পারছে না।দয়া করে বলবেন,,,এখন আমার কি করা উচিত?আমি কিছুদিন আগেই টেকশপ বিডি থেকে আর্ডোইনোটি কিনেছি।প্রথমে কিছু সাধারণ প্রোগ্রাম কাজ করেছে,,,কিন্তু হঠাত প্রোগ্রাম upload করা যাচ্ছে না।এখন আমার করণীয় কি? Questioned by Mohammed_Nazrul_Islam, 19-Jun-2017

Q: আমার arduino বোর্ডের tx LED এবং rx LED Blink করছে না। কম্পিউটার বোর্ডটিকে recognise করতে পারছে না।দয়া করে বলবেন,,,এখন আমার কি করা উচিত?আমি কিছুদিন আগেই টেকশপ বিডি থেকে আর্ডোইনোটি কিনেছি।প্রথমে কিছু সাধারণ প্রোগ্রাম কাজ করেছে,,,কিন্তু হঠাত প্রোগ্রাম upload করা যাচ্ছে না।এখন আমার করণীয় কি? Questioned by Mohammed_Nazrul_Islam, 19-Jun-2017

আপনার অর্ডার নাম্বার কত? Answered by A.R, 20-Jun-2017 03:45 AM

138014 Answered by Mohammed_Nazrul_Islam, 20-Jun-2017 13:24 PM

যদি COM port এ বোর্ড ডিটেক্ট করে কিন্তু কোড আপলোড করা না যায় তাহলে ATmega328P চিপটা বদলে ফেলুন। আর যদি COM PORT এই না পায় তাহলে USB to TTL চিপটির হেক্স ফাইল নতুন করে আপলোড দিয়ে দেখুন। Answered by A.R, 21-Jun-2017 04:12 AM

হেক্স ফাইল কিভাবে আপলোড দিবো? Answered by Mohammed_Nazrul_Islam, 21-Jun-2017 22:55 PM

USB to TTL চিপটির প্রোগ্রামার পিনগুলো আরডুইনো বোর্ডের বামদিকে বের করে দেওয়া আছে। যেকোনো এভিআর প্রোগ্রামার ব্যবহার করে হেক্স আপলোড করা যাবে। অনুগ্রহ করে আপনি এই সংক্রান্ত টিউটোরিয়াল দেখে নিন। Answered by A.R, 22-Jun-2017 08:12 AM

আমার কাছে কোনো এভিআর প্রোগ্রামার নেই।আপনাদের কাছে পাঠানো হলে আপনারা ঠিক করে দিতে পারবেন? Answered by Mohammed_Nazrul_Islam, 22-Jun-2017 15:06 PM

দুঃখিত। চাইনিজ পন্যের ক্ষেত্রে আমরা ক্রয়ের তিন দিন পর্যন্ত গ্যারান্টি দিয়ে থাকি। এই সময়ের পর আর কোনো সার্ভিসিং বা রিপ্লেসমেন্ট আমরা দিই না। আমাদের নিজেদের বানানো প্রডাক্টের ক্ষেত্রে আমরা এক বছর পরও আমরা সার্ভিসিং করতে পারি। Answered by A.R, 02-Jul-2017 04:05 AM

Q: Arduino Uno er price aro kom e paici. Apnara ki future e aro komaben? http://www.eprojectbd.com/product/arduino-uno/ Questioned by chanchol, 26-Jun-2017

Q: Ager upload deoa programme reset korbo kivabe? Questioned by ShaanNabid, 27-Aug-2017

বুঝলাম না। রিসেট নাকি রিমুভ? রিসেটের জন্য তো রিসেট বাটন আছে। আর প্রোগ্রাম একটা লোড করলে আগেরটা মুছে যায় অটোম্যাটিক্যালি। Answered by A.R, 27-Aug-2017 03:52 AM

Q: hello techshop i just received my arduino yesterday. but cant upload any code. i rechecked my drivers and com ports. but nothing works.. pls suggest a solution Questioned by totnoob, 27-Aug-2017

Please send the board with a copy of your invoice. We must check that first. Answered by A.R, 27-Aug-2017 06:30 AM

Q: ami arduino kinchi jokhon computere jokhon programming kori tokhon shudha akta green ar akta yellow llight jole kintu reset button press korle reset hoyna abar 12 v adapter aiy connect korle arduino chalui hoyna amar ki problem hoice ki korle amar arduino abar thik hbe ami to bogray thaki akhane keu ata niye kichu bolte pare na. ami onek boro jhamelay porchi ki vabe ami bashayiy ata thik korbo Questioned by jjjjjjjjj, 30-Oct-2017

আপনার অর্ডার নাম্বার কত? আরডুইনোতে প্রোগ্রাম কি লোড হচ্ছে নাকি হচ্ছে না? Answered by A.R, 31-Oct-2017 03:40 AM

Q: আপনাদের কাছে কি আরডুইনো উনো এর ডিসি জ্যাকের চার্জার আছে? Questioned by prosenjit.pollob, 23-Dec-2017

https://www.techshopbd.com/product-categories/charger/1501/12v-2a-power-adapter-techshop-bangladesh Answered by A.R, 23-Dec-2017 10:04 AM

Q: How can I get the arduino IDE for free Questioned by nargisakhter, 08-Mar-2018

Please download from arduino.cc Answered by A.R, 10-Mar-2018 09:03 AM

Q: Akta 5V socket ace Arduino board a. Ami ki oi socket theke aksathe duto device 5V relay module r 5V GSM module a connection dite parbo? Conection dile ki Arduino board er kono khoti hobe? Questioned by Shovonmondol0055, 23-Sep-2018

Q: Amar arduino er external power supply er pase ASM1117 transistor ti khub gorom hoye jacce Questioned by Shovonmondol0055, 17-Oct-2018

Q: How can i remove the old code and add a new one in my adruino? Questioned by Nomankhan4607, 13-Feb-2019

When a new program is uploaded in arduino, the previous one erases automatically. Please visit arduino.cc and get the basics right. Answered by A.R, 17-Feb-2019 03:35 AM

Q: does it really contain atmega 16u2? how to be sure that it is not with ch340? is the pic real or fake Questioned by Asad1234ub, 29-May-2019

This has ATmega16U2. The Ch340 one is sold in this set only: https://www.techshopbd.com/product-categories/starter-kits/2033/starter-kit-arduino-uno-r3-techshop-bangladesh. Please compare the pics. Answered by A.R, 30-May-2019 03:25 AM

Q: The thing is that, I bought this Arduino UNO R3 from here, and it worked in my other laptop. But as I changed my laptop, the board is not being recognized by my laptop. Is there any solution to this problem?? It gets recognized as {Unknown USB Device (Device Descriptor Request Failed)} Questioned by RusafiKamal, 09-Sep-2020

Assuming that you're on windows, go to Device manager &gt;&gt; Universal Serial Bus Controllers &gt;&gt; right click on &quot;USB Root Hub&quot; and then uninstall. Restart your PC afterwards. If this process doesn't solve the issue, please contact us through live chat of our website and ask for technical support. Answered by techshopbd, 10-Sep-2020 07:10 AM

Q: The thing is that, I bought this Arduino UNO R3 from here, and it worked in my other laptop. But as I changed my laptop, the board is not being recognized by my laptop. Is there any solution to this problem?? It gets recognized as {Unknown USB Device (Device Descriptor Request Failed)} Questioned by RusafiKamal, 09-Sep-2020

Q: Ai product ki Replacement Warranty asa Questioned by [email protected], 16-Mar-2021

Yes, 3 days replacement warranty. Answered by almamun3248, 16-Mar-2021 04:25 AM

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