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SKU: 260428005422
Brand : Waveshare Electronics
Warranty : 3 Days
৳ 1820.04
Category: Light
Additional Information
The Digital LTR390 UV Sensor C is a compact I2C-based module that measures both UV and ambient visible light, providing direct UV Index output along with light intensity data for environmental monitoring and IoT use.
Built around the LTR390-UV-01 chip, it comes in a small 27 × 20mm expansion board for easy integration into embedded systems. It delivers sensitive light detection, fast response, and stable performance for real-time readings.
This sensor is suitable for weather stations, smart agriculture, and embedded projects using Raspberry Pi or microcontrollers that require UV and light intensity measurement.
| Feature | Specification |
|---|---|
| Sensor | LTR390-UV-01 |
| Hardware Interface | I2C |
| Calibration Required | No, direct UV index output |
| Intensity Measuring | Yes |
| Interrupt Output | Yes |
| UV Response Spectrum | 280 - 430 nm |
| Weight | 0.007 kg |
This example is tested on Arduino UNO. If other types of Arduino are used, please pay attention to whether the relevant pins are connected correctly.

| LTR390 UV Sensor Pin | Arduino UNO Pin |
|---|---|
| VCC | 5V |
| GND | GND |
| SDA | A4 |
| SCL | A5 |
| INT | D8 |
Download and install Arduino IDE from official Arduino website:
https://www.arduino.cc/en/software
The Arduino library setup for the LTR390 UV Sensor is easy and beginner-friendly. Download and extract the demo code, then copy the UV_Sensor_C_Code folder into the Arduino libraries directory. Restart the Arduino IDE and check File → Examples to confirm the library is installed correctly.
After that, open the .ino example file, select Arduino UNO and the correct COM port, then upload the code. Finally, open the Serial Monitor to see real-time UV Index values and test the sensor using a UV light source or UV pen.
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.
Our engineers are available to assist you. If you have any queries, please leave a comment below or call 09678110110 from 09:00 am to 06:00 pm (7 days a week). You can also reach us via WhatsApp or Facebook Inbox
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৳ 1820.04
The latest and best price of Digital LTR390 UV Ultraviolet Sensor C DirectUV Index Value Output I2C in BD is BDT 1820.04 Taka. You can purchase the Digital LTR390 UV Ultraviolet Sensor C DirectUV Index Value Output I2C at the best price on TechShopBD.com or visit our office to pick yours up today.
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