Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Sensor Chips | AHT20 (Temp/Humidity) + BMP280 (Pressure/Temp) |
| Communication Interface | I2C |
| Operating Voltage | 3.3V - 5V DC |
| Temperature Range | -40°C to +85°C |
| Humidity Range | 0% to 100% RH |
| Pressure Range | 300 hPa to 1100 hPa |
| Humidity Accuracy | ±2% RH (typical) |
| Temperature Accuracy | ±0.3°C (typical) |
| PCB Dimensions | 22mm x 17mm x 3mm |
| Mounting Holes | 4x M2.5 holes for easy installation |
Anonymous
Mar 24, 2026
Rating: 5/5
Reliable and Compact
I bought five of these for a greenhouse monitoring project. All units are consistent with each other. The combination of AHT20 and BMP280 on one board saves a lot of space in my enclosure.
Anonymous
Mar 20, 2026
Rating: 4/5
Great value, minor soldering needed
The sensor works great out of the box. I deducted one star because the headers were not pre-soldered, so you need to do a little work before using it on a breadboard. Otherwise, precision is impressive for the price.
Anonymous
Mar 14, 2026
Rating: 5/5
Perfect for Weather Stations
This module is exactly what I needed for my DIY weather station. The I2C communication is stable, and the data from both sensors matches my reference equipment very closely. Easy to wire up with an ESP32.
Anonymous
Mar 10, 2026
Rating: 4/5
Solid performance
Good accuracy for general environmental monitoring. Note that the pressure reading needs calibration based on your altitude for absolute accuracy, but relative changes are spot on.
Anonymous
Mar 07, 2026
Rating: 5/5
Exceeded expectations
Very fast response time compared to older DHT11 modules I have used. The build quality feels robust, and the PCB layout is clean. Will buy again for future projects.
Anonymous
Mar 04, 2026
Rating: 5/5
Easy library support
Found libraries for both sensors immediately for Arduino. Had it reading temperature, humidity, and pressure within 20 minutes of unboxing. Highly recommended for beginners.
Q: Can I use this outdoors directly?
A: While the sensors themselves are robust, the PCB is not waterproof. For outdoor use, please house the module in a ventilated, weather-proof enclosure to protect the electronics from rain and direct moisture.
Q: What is the power consumption of this module?
A: The module is designed for low power applications. In active measurement mode, it consumes approximately a few hundred microamps, making it suitable for battery-powered projects.
Q: Are there sample code examples available?
A: Yes, you can find numerous open-source libraries and example sketches for Arduino, ESP8266, and ESP32 on GitHub and standard library managers that support both AHT20 and BMP280 chips.
Q: Is this module compatible with Raspberry Pi?
A: Yes, it is fully compatible with Raspberry Pi via the I2C interface. Just ensure you enable I2C in the Raspberry Pi configuration settings and connect the SDA/SCL pins correctly.
Q: Does it come with header pins included?
A: The module typically comes with a set of male header pins in the bag, but they are not pre-soldered to the board to allow for flexible mounting options.
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