This is a firmware for Raspberry Pico. It publish on Grafana Cloud data from Epever Solar Charger.
1 Capacitor (100 µF or more) 1 RS485 to TTL converter (ex: https://it.aliexpress.com/item/1005001621746811.html) 1 Raspberry PICO (with optional breakout board, ex: https://it.aliexpress.com/item/1005004709248186.html)
