Build an IoT countdown clock using Adafruit QT Py ESP32-S2, alphanumeric STEMMA QT displays and CircuitPython!
The alphanumeric displays text that scrolls the time remaining until your next exciting event!
This uses three alphanumeric displays daisy chained together using I2C STEMMA QT cables.
The electronics are housed in a 3D printed stand that snap fits together for any easy assembly.
QT Py ESP32-S2 Microcontroller
You need only one of the following boards.
Quad Alphanumeric Display STEMMA QT Backpacks
This project requires three alphanumeric display backpacks and three pairs of the alphanumeric displays. The backpacks are bundled with the displays.
The bundles are available with displays in red, green, blue, white, and yellow. Only blue is included below. Check the Featured Products on the right side of this page to find links to the others.
STEMMA QT Cable
You will need three of the following cables.
Any length will work, but the 50mm cable is the best option because it leaves the least amount of excess cable behind the displays.
To power the project, you can use a USB C cable plugged into a USB battery or a USB port on your computer.