This is an array of reflectance sensors, intended for use with small robots for tasks such as line following or boundary detection. Unlike other commercially available sensors (e.g. Pololu), it has i2c interface, so you do not need to waste many GPIO pins.

Key features

• Dimensions: 20x60 mm

• includes 6 individual reflectance sensors (long range - optimal distance to measured object is 4mm)

• has i2c interface, which supports normal (100k) and fast (400k) speeds

• contains an MCU (attiny 1616) which takes care of reading individual sensor input, applying calibrations, and computing line position for line following tasks

• provides qwiic/stemma qt connector as well as holes for soldering standard 0.1” header connector (not included)

• can be turned off to save batteries

• comes with a micropython/Circuit Python library (Arduino library will be added shortly)

Note: qwiic cable is not included; you can buy one from Digikey:

Detailed documentation

Full documentation, including installation instructions and user guide, can be found at reflectance-array.readthedocs.io/