Robosoft Labs 2Pcs IR Obstacle Line Proximity Fire Color Sensor for Arduino Rasp Pi 8051 AVR for line Follower, Edge Avoider, Obstacle Avoider Robot : Amazon.in: Industrial & Scientific
Yahboom new arrival high quality LDR Light Detection module based on Microbit and Raspberry Pi Pico|Demo Board| - AliExpress
Deploy an Edge Detection Algorithm on Raspberry Pi - YouTube