The MagTag Stock Tracker / Ticker is an Adafruit MagTag Stock Tracker with a gorgeous ePaper / eInk display. It uses WiFi onboard to get the latest stock information for display. Magnetic feel allow it to be attached to a fridge or other surface.
It is programmed in CircuitPython and it’s very easy to change what to display by editing a text file, no programming.
It saves battery and keeps the previous stock price saved before sleeping. Also, it includes logic for recovery from a reboot or dead battery and checks the battery and warns when a battery is low from an audible tone.
See more on GitHub.