Pimoroni BH1745 Luminance and Colour Sensor Breakout

The Pimoroni PIM375 is a sophisticated breakout board centred on the BH1745 colour and luminance sensor. Designed to detect both RGB colour values and ambient light levels, this sensor offers a comprehensive solution for light-sensing projects with integrated 50/60Hz light noise rejection for stable, accurate readings.

The breakout is fully compatible with Pimoroni's Breakout Garden system, which allows for an intuitive plug-and-play setup on Raspberry Pi boards, making it an excellent choice for both beginners and experienced developers. It measures red, green, and blue colour components alongside overall luminance with a broad detection range from 0.005 to 40,000 lux, enabling precise monitoring across diverse lighting environments.

Key features and specifications

• Light and Colour Sensing: Detects RGB colour and luminance across a vast 0.005 to 40,000 lux range.
• Noise Rejection: Integrated 50/60Hz light noise rejection for stable operation under artificial lighting.
• Infrared Filter: Includes an IR cut filter for improved colour accuracy by minimising infrared light interference.
• High Resolution: Provides 16-bit data output for precise measurement.
• Power Flexibility: Compatible with both 3.3V and 5V systems.
• Programmable Interface: Features an I2C interface with an address selectable via a cuttable trace (0x38 or 0x39).
• Design Protection: Incorporates reverse polarity protection to help prevent damage from incorrect power connections.
• Raspberry Pi Compatible: Uses a Raspberry Pi-compatible pinout (pins 1, 3, 5, 7, 9).
• Programming Options: Can be programmed using Python on a Raspberry Pi or C++/MicroPython on a Raspberry Pi Pico.

The breakout board comes supplied with a male header and a female right-angle header, providing flexibility for your prototyping and final assembly needs. Its compact design and