This project uses a QT Py ESP32-S2 running CircuitPython with a NAU7802 to build a food scale that’s the perfect size for holding your pet’s dry food. A strain gauge is used to measure the weight of a food container on top of the 3D printed platform. It makes for a fun way to see your pet’s food consumption over time.
This project will show you how to calibrate and use the NAU7802 with a strain gauge to measure torque with CircuitPython.
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.