Hardware tips

Frequency counting

• RF https://github.com/swharden/RasPi-Frequency-Counter
• https://blog.adafruit.com/2021/04/28/a-low-cost-100mhz-frequency-meter-technoblogy-microchipmakes/

pico frequency counting

• • https://github.com/phoreglad/pico-MP-modules/tree/main/PWMCounter
  • https://github.com/dpwe/FreqCountRP2

pi frequency counting

• http://abyz.me.uk/rpi/pigpio/index.html

pi GPIO Performance

• https://codeandlife.com/2012/07/03/benchmarking-raspberry-pi-gpio-speed/