If you're looking to dive deeper: check the (local REST + MQTT) or the Tasmota/ESPHome repositories for the Plus 2PM template.

Here’s why the firmware for this device stands out:

// Overcurrent Protection and Automated Load Shedding #define OVERCURRENT_THRESHOLD_LOAD1 10 // 10A threshold for load 1 #define OVERCURRENT_THRESHOLD_LOAD2 5 // 5A threshold for load 2 #define LOAD_SHEDDING_ORDER 2 // shed load 2 before load 1

The stock firmware from Allterco (Shelly’s parent company) runs on an (specifically the ESP32-S3 in the Plus 2PM). Key highlights: