Sharp GP2Y0A51SK0F Analog Distance Sensor 2-15cm POL_Chassis org/wiki/Gray_code) which you can interpret

org/wiki/Gray_code) which you can interpret using a microcontroller and find out which direction the shaft is turning and by how much

The ESP32 Thing

The board comes with an OV2640 camera that offers 2 megapixels

so you can customize the firmware and flash new code over a USB connection

This board/chip uses I2C 7-bit address 0x29

Sharp GP2Y0A51SK0F Analog Distance Sensor 2-15cm POL_Chassis org/wiki/Gray_code) which you can interpretThe GP2Y0A51SK0F is the shortest range Sharp analog distance sensor we carry, featuring a detection range of 0. 8 to 6 (2 cm to 15 cm). The shorter range gives you higher resolution measurements, and the low minimum detection distance makes this sensor great for detecting very close objects. The distance is indicated by an analog voltage, making this sensor very easy to use. Overview The Sharp distance sensors are a popular choice for many projects