Neither ticket validator nor GPS in half of the RTC buses
Calibrating an MCU's RTC Using GPS - Circuit Cellar
pwnagotchi on Twitter: "Having troubles soldering RTC, GPS and other sensors to your Pwnagotchi? This shield made by Francesco Pagano got you covered! Connect display, RTC and GPS easily! https://t.co/o4nQPer5RN https://t.co/t7OtDjDhpS" /