GY-906 MLX90614 Non-Contact Infrared Temperature Sensor
The GY-906 is a non-contact infrared (IR) thermometer module based on the Melexis MLX90614 sensor. It is designed for high-accuracy temperature measurements without physical contact, making it ideal for industrial control, medical monitoring, and DIY projects like thermal scanners. The module utilizes the I2C interface for communication, allowing for easy integration with microcontrollers such as Arduino, ESP32, and Raspberry Pi.
Product Features
- Non-Contact Measurement: Uses infrared technology to detect the surface temperature of objects from a distance.
- Dual Temperature Readout: Provides both the object temperature and the ambient (surrounding) temperature.
- High Precision: Factory calibrated with a resolution of 0.02°C and high accuracy over wide temperature ranges.
- I2C Interface: Simple two-wire digital interface for data transmission; supports multiple sensors on the same bus.
- Internal 17-bit ADC: High-resolution analog-to-digital converter ensures stable and reliable readings.
- Small Footprint: Mounted on a compact PCB with integrated pull-up resistors for immediate use.
Technical Specifications
- Sensor Chip: MLX90614ESF-BAA (or BCC/DCI depending on specific version)
- Operating Voltage: 3.3V – 5V DC
- Ambient Temperature Range: -40°C to +125°C
- Object Temperature Range: -70°C to +382.2°C
- Accuracy: ±0.5°C (in the range of 0°C to +50°C)
- Field of View (FOV): Standard 90° (Varies by specific sensor sub-model)
- Interface: I2C (SMBus compatible)
Pin Configuration
| Pin Label | Function | Description |
|---|---|---|
| VIN | Power | 3.3V to 5V DC Input |
| GND | Ground | Common Ground |
| SCL | I2C Clock | Serial Clock Line |
| SDA | I2C Data | Serial Data Line |
Application Tips
For the most accurate results, ensure that the object being measured fills the sensor's entire Field of View (FOV). As the distance between the sensor and the object increases, the measurement area grows larger. Avoid placing the sensor behind glass or plastic, as these materials block infrared radiation and will cause inaccurate readings of the barrier's temperature rather than the intended target.
Package Contents
- 1 GY-906 MLX90614 Non-Contact IR Temperature Sensor Module
- 1 4-pin Header (Straight or Right-angle)