how can we use this PZEM004T Energy Monitor with esphome and home assistant ? [image] olehs/PZEM004T Arduino communication library for Peacefair PZEM-004T Energy monitor - olehs/PZEM004T [image] PZEM-004T Maximum 100A AC Multifunction Power Monitoring …

I think the difference is that it talks to all of them at the same time. I have change the “update_interval:” on one to be 1s, the other to be 1.02s I get periodic CRCs when they align, but overall 95% of reads are good. I used to have a delay in the code for the second one, but since an update t…

And they can be wired in parallel, since on Tx, each is just an LED and resistor on the PZEM board, and on the Rx, any one of them that is replying (- assuming you only addressed one!) can pull the input to the ESP down to ground. If you want to talk to many, you’d need to change the drive strength…

I have the same issue with the Modbus CRC Check failed! Have you found a solution? Steeve wrote about reporting issue of several devices. But I have one only to test it.

Appears there was a bug introduced around 2022.11.3 that causes issues with modbus. Some are having success with changing the arduino framework version as below. esp32: board: nodemcu-32s framework: type: arduino version: 2.0.6 Here are a couple related GitHub issues …

I try to change address my PZEM004T to 0x003 to this code: but it always has the old address: 0x01 what am I doing wrong? esphome: name: ac-mero-01 on_boot: ## configure controller settings at setup ## make sure priority is lower than setup_priority of modbus_controller priori…

[image] bugge: what am I doing wrong? Not providing any logs? [image] How to help us help you - or How to ask a good question Configuration Before we begin… This forum is not a helpdesk The people here don’t work for Home Assistant, that’s an open sourc…

I think you wrongly changed this part auto set_addr_cmd = esphome::modbus_controller::ModbusCommandItem::create_write_single_command( controller, 0x0003, new_address) the 0x0003 should be left as 0x0002, it’s register number for the address, not the address itself.

I made and emulator for pzem-004t v3 module. See here . Could be used to troubleshoot issues

I got wrong low power incoming value, and also very low power factor. Trying to count my main AC power, energy consumption that connected to AC in of solar inverter. I hope that some one can help to resolve issue with incorrect values? Much appreciated [image] [image]

Did you calibrate it? Here you can find a lot of information. It is for Tasmota but also works for ESPHOME: PZEM-0xx power monitor - Tasmota

How to use PZEM004T Energy Monitor with esphome

ESPHome

orange-assistant (■■■■■■■■) March 31, 2023, 10:39pm 256

Not providing any logs?