Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Sensor Type | 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 |
| Temperature Accuracy | ±0.3°C |
| PCB Dimensions | 22mm x 17mm x 3mm |
| Mounting Holes | 4 x 3mm diameter |
Anonymous
Mar 31, 2026
Rating: 5/5
Compact and powerful
Love how small this board is while packing two high-quality sensors. Power consumption is low, making it ideal for battery-powered projects.
Anonymous
Mar 27, 2026
Rating: 4/5
Great value, minor soldering needed
The sensors are accurate and responsive. I had to solder the header pins myself as they weren't pre-attached, but that's standard for this price point. Highly recommended for hobbyists.
Anonymous
Mar 20, 2026
Rating: 5/5
Perfect for Weather Stations
This module works flawlessly with my ESP32 project. The I2C addresses are distinct, so no conflicts. Data readings are stable and match my reference instruments closely.
Anonymous
Mar 17, 2026
Rating: 4/5
Reliable for indoor monitoring
Using three of these in my greenhouse automation system. They have been running 24/7 for a month without drift. One star off because the silk screen is a bit faint.
Anonymous
Mar 17, 2026
Rating: 5/5
Easy to integrate
Found plenty of libraries for Arduino and Python. Got it up and running in under 10 minutes. The documentation provided by the seller was also very helpful.
Anonymous
Mar 03, 2026
Rating: 5/5
High precision as advertised
I compared this against a professional meteorological station, and the pressure and humidity readings were within acceptable margins. Excellent build quality for the size.
Q: How long does shipping take to the US?
A: Standard shipping usually takes between 10 to 15 business days. Expedited options are available at checkout for faster delivery.
Q: Is this compatible with 5V logic levels like Arduino Uno?
A: Yes, the module includes a voltage regulator and level shifting, making it safe to use with both 3.3V and 5V microcontrollers.
Q: Does this module come with header pins included?
A: The module typically comes without pre-soldered headers to keep shipping costs low and allow for flexible mounting. You will need to solder your own 2.54mm pin headers.
Q: What are the default I2C addresses for both sensors?
A: The AHT20 usually defaults to 0x38, and the BMP280 typically defaults to 0x76 or 0x77 depending on the specific batch. Please check the datasheet or use an I2C scanner sketch to confirm.
Q: Can I use this outdoors directly in the rain?
A: No, the PCB and sensors are not waterproof. For outdoor use, you must house the module in a breathable weatherproof enclosure to protect it from direct moisture while allowing air flow.
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