Ratings | 8 Answered Questions
SKU: 161214002583
Brand: Made in China
Warranty: 3 Days
৳ 195.06
Category: ESP8266
Additional Information
The ESP8266 ESP-01 is a Wi-Fi module that allows a microcontroller to easily connect to a Wi-Fi network. This module is a self-contained SoC (System on a Chip); it can provide internet access to a microcontroller, just like using a Wi-Fi shield with an Arduino, or it can be directly programmed to connect to a Wi-Fi network and also perform microcontroller tasks. On the ESP-01 board, only four GPIO pins are exposed.
With built-in TCP/IP support, AT command firmware, onboard LED, and low-power operation, the ESP-01 is ideal for IoT prototyping, home automation, sensor networks, and serial-to-Wi-Fi communication systems.
As a result, the ESP8266 is highly versatile and helps reduce both the cost and size of your projects.
| Parameter | Details |
|---|---|
| CPU | 32-bit RISC Tensilica Xtensa LX106 @ 80 MHz |
| Instruction RAM | 64 KB |
| Program RAM | 96 KB |
| Flash Memory | 1 MB |
| Wi-Fi Standard | IEEE 802.11 b/g/n |
| GPIO | 4 pins |
| Operating Voltage | 3.3V |
| Typical TX Current | 170 mA |
| Typical RX Current | 56 mA |
| Deep Sleep Current | ~10 µA |
| Dimensions | 24.80 × 14.30 mm |
| Pin | Name | Safe to Use? | Notes / Boot Behavior / Warnings |
|---|---|---|---|
| 1 | GND | ✔️ | Ground reference. |
| 2 | GPIO2 | ✔️ Safe | Usable as normal GPIO. Must be HIGH during boot. Avoid pull-down sensors. Works with LEDs, digital sensors, I²C pull-ups, etc. |
| 3 | GPIO0 | ⚠️ Usable with restriction | Must be HIGH to boot normally. LOW forces flash mode. Safe if device does not pull LOW during reset. |
| 4 | RX (GPIO3) | ⚠️ Usable but risky | Default UART RX. Receives boot messages. Can cause boot failure if pulled LOW by a sensor. |
| 5 | TX (GPIO1) | ⚠️ Usable but risky | Default UART TX. Sends boot logs. Usable as output after disabling UART. Must not be pulled LOW at boot. |
| 6 | CH_PD / EN | ❌ Not GPIO | Must stay HIGH for ESP to run. Never use as GPIO. |
| 7 | RST | ❌ Not GPIO | Active LOW reset. Keep pulled HIGH. Do not use as GPIO. |
| 8 | VCC (3.3V) | ✔️ | Requires a stable 3.3V supply with 200–250 mA capability. |
For stable operation, a dedicated 3.3V power supply is recommended unless using an ESP01 adapter board with onboard regulator and level shifting.
1. Using AT Firmware (Default)
The module comes with AT commands pre-installed, allowing direct configuration through any serial terminal at 115200 baud (Both NL & CR).
Example:
2. Using Custom Firmware
To upload custom code (Arduino IDE, ESP8266 SDK, or Lua):
A quick search on Google will yield numerous online tutorials covering these platforms. Some notable examples include:
The ESP01 ESP8266 module is ideal for:
TechShopBD offers up to one year of warranty and replacement support for its products, depending on the supplier(s) and product(s). The specific warranty duration for each product can be found on the respective product page. To be eligible for warranty and replacement support, customers must agree to our terms and conditions.
Note: This item is non-returnable. If this item arrives damaged or is not functioning properly, please don’t hesitate to contact us to determine if further action is required.
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Does it require flashing firmware?
By Muntaha on 06 Aug 2022
Can I use arduino code on it?how can use this to pc?
By bdabulbasher on 16 Sep 2019
Please see here: https://www.youtube.com/watch?v=P8Z-ZHwNeNI
By TechShopBD on 17 Sep 2019
Any tutorial to interface it with arduino mega 2560?
By Ferdib on 11 Sep 2019
We do not have any.
By TechShopBD on 12 Sep 2019
how long before they're in stock again?
By Shahad on 24 Jan 2018
At least 3 more weeks. If you do not have any urgency, please click on notify me W/A beside product's image. You'll get an e-mail and a sms as soon as the product is available.
By TechShopBD on 25 Jan 2018
Can I use it as like as a remote ?
By saiadahamedbd on 08 Dec 2017
What kind of remote?
By TechShopBD on 09 Dec 2017
৳ 195.06
The latest and best price of ESP01 ESP8266 Serial WiFi Transceiver Module 1MB Flash in BD is BDT 195.06 Taka. You can purchase the ESP01 ESP8266 Serial WiFi Transceiver Module 1MB Flash at the best price on TechShopBD.com or visit our office to pick yours up today.
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