GitHub - CircuitSetup/Expandable-6-Channel-ESP32-Energy-Meter: Hardware & Software documentation for the CircuitSetup Expandable 6 Channel ESP32 Energy Meter
ACS37800: Programmable AC and DC Power Monitoring IC
Arduino Home Energy Monitor Shield : 7 Steps (with Pictures) - Instructables
Powertronics Probe 100+ - USB Power Line Monitor, Black - Voltage Testers - Amazon.com
Arduino Energy Monitoring Shield R2.1 - ElectroDragon
Simple 3 Phase Arduino Energy Meter - The DIY Life