A raspberry pi 0W with an eInk hat and gps to show munzee qr codes that are close
https://www.adafruit.com/product/3335 https://www.adafruit.com/product/4279 https://www.adafruit.com/product/3099
Doodleman360/MunzeeQR
A raspberry pi 0W with an eInk hat and gps to show munzee qr codes that are close
Python