tiny code reader

QR Code Robots

Build Robots that are controlled by QR Codes

Build a QR Code controlled robot using the Tiny Code Reader sensor for Useful Sensors Inc.

I purchased this tiny QR code reader from Adafruit and it can read QR codes and send data to a microcontroller via I2C. It has a built in image sensor and is powered by a Raspberry Pi RP2040 and is made by Useful Sensors Inc. It’s only costs a couple of bucks so it’s a great way to add simple data entry to your projects.

The QR in QR codes means quick response and it was originally developed by a Japanese company tracking automotive parts.

tiny code reader

RP2040 - reverse side

QR Control cards for use with a robot

QR Control Cards

I’ve created a bunch of QR code control cards that you can print out and use to control a robot using the micropython code below. You will need to add your own code to control the robots motors etc.

Download the QR Control cards here

MicroPython code

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