Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Sensor Type | CCS811 (Gas) + HDC1080 (Temp/Humidity) |
| Detection Range | 400 to 5000 ppm CO2 equivalent |
| Interface | I2C Communication Protocol |
| Operating Voltage | 3.3V DC |
| Temperature Range | -40°C to +85°C |
| Humidity Range | 0% to 100% RH |
| Response Time | Approx. 60 seconds for stabilization |
| Board Dimensions | 24mm x 18mm x 3mm |
| Mounting Style | Through-hole with header pins |
| Compatibility | Arduino, Raspberry Pi, ESP32, STM32 |
Anonymous
Mar 28, 2026
Rating: 4/5
Easy to integrate
Found plenty of example code online to get started quickly. Only giving 4 stars because the initial burn-in time is quite long before accurate readings appear.
Anonymous
Mar 21, 2026
Rating: 5/5
Ideal for environmental monitoring
Using this to monitor air quality in my indoor garden. The combination of gas, temp, and humidity in one module saves so much wiring hassle.
Anonymous
Mar 16, 2026
Rating: 5/5
Compact and reliable
Great little board. The footprint is small enough to fit into tight enclosures. No issues with noise on the I2C line even with long wires.
Anonymous
Mar 13, 2026
Rating: 5/5
Excellent value for money
Compared to other standalone sensors, getting both CCS811 and HDC1080 on one board at this price point is a steal. Highly recommended for students.
Anonymous
Mar 06, 2026
Rating: 5/5
Perfect for my smart home project
This module works flawlessly with my ESP32. The I2C address is standard and the library support is excellent. Readings are stable after the initial warm-up period.
Anonymous
Mar 05, 2026
Rating: 4/5
Good accuracy, needs calibration time
The sensor provides consistent data once it has run for about 24 hours as recommended in the datasheet. Temperature and humidity readings match my reference meter closely.
Q: Can this detect actual Carbon Monoxide (CO) or just CO2 equivalents?
A: The CCS811 detects Total Volatile Organic Compounds (TVOCs) and estimates CO2 equivalents. It is not a dedicated safety sensor for toxic Carbon Monoxide (CO) leaks.
Q: How long does the sensor need to run before providing accurate data?
A: The CCS811 sensor typically requires a 48-hour burn-in period upon first use. After that, it needs about 10-20 minutes of warm-up each time it is powered on for optimal accuracy.
Q: What is the default I2C address for this board?
A: The default I2C address for the CCS811 is usually 0x5A, and the HDC1080 is typically 0x40. Please check the specific library documentation you are using.
Q: Is 5V logic compatible or do I need a level shifter?
A: The module operates at 3.3V. If your microcontroller uses 5V logic, you must use a logic level shifter to prevent damaging the sensor.
Q: Does this module require an external pull-up resistor for I2C lines?
A: Yes, the board includes onboard pull-up resistors, so you can connect it directly to your microcontroller without additional components.
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