Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Sensor Model	BME680
Detection Parameters	Temperature, Humidity, Pressure, Gas
Communication Interface	I2C and SPI
Operating Voltage	1.2V to 3.6V
Board Dimensions	22mm x 17mm
Pressure Range	300 to 1100 hPa
Temperature Range	-40°C to +85°C
Humidity Range	0 to 100% RH
Gas Sensor Target	VOCs (Volatile Organic Compounds)
Compatibility	Arduino, Raspberry Pi, ESP32

6 reviews

Anonymous

Mar 20, 2026

Rating: 5/5

Perfect for weather stations

This module works flawlessly with my ESP32 project. The data readings are consistent and the library support is excellent. Highly recommended for DIY enthusiasts.

Anonymous

Mar 16, 2026

Rating: 4/5

Reliable for long-term logging

I have been running this sensor for three weeks straight without any issues. The power consumption is low, which is great for battery-operated projects.

Anonymous

Mar 15, 2026

Rating: 4/5

Great sensor, tricky initial setup

The sensor itself is very accurate once calibrated. I had a little trouble getting the I2C address right initially, but the documentation helped sort it out quickly.

Anonymous

Mar 15, 2026

Rating: 5/5

Easy to integrate

As a beginner, I was worried about wiring this up, but the pinout is clearly labeled. It connected easily to my Arduino Uno and started reading data immediately.

Anonymous

Mar 15, 2026

Rating: 5/5

Excellent value for money

Compared to other environmental sensors, this offers the best bang for your buck. The gas detection feature is a nice bonus for indoor air quality monitoring.

Anonymous

Mar 11, 2026

Rating: 5/5

High precision readings

The altitude calculation based on pressure is surprisingly accurate. I tested it against a professional barometer and the results were within acceptable margins.

5 FAQ

Q: Is the casing waterproof?

A: No, the CJMCU-680 board is not waterproof. It should be used in dry environments or housed in a protective enclosure with breathable membrane for pressure sensing.

Q: Does this board come with headers soldered?

A: No, the board is shipped without headers to allow for flexible mounting options. You will need to solder your own pin headers.

Q: Can this operate at 5V logic levels?

A: The sensor chip operates at 3.3V. While the board has a voltage regulator, the logic lines are not 5V tolerant. Please use a level shifter if connecting to a 5V microcontroller.

Q: What is the accuracy of the temperature reading?

A: The typical temperature accuracy is ±1.0°C within the range of 0°C to 65°C.

Q: Is there a specific library required for the gas sensor function?

A: Yes, we recommend using the Adafruit BME680 library or the Bosch BSEC software library for advanced gas resistance analysis.

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