Max number of PZEM-004T V3 per esp

ESPHome
1

hi so i was wondering what is the tharetical max number of PZEM-004T V3 per esp i wanting to do each curcit monitering in my home and need aprox 60 energy moniters

2

One line of text is quite likely insufficient to provide all necessary information to get answers. Direct UART connection?

3

Assuming you need one uart per device, and knowing the esp33 has 3 uarts, that would appear to be the limit. ESP32 Pinout Reference: Which GPIO pins should you use? | Random Nerd Tutorials