Current Coil (CT Sensor): A current coil is a type of current transformer used to measure alternating current (AC) flowing through a conductor. The CT sensor used with the PZEM-004T is generally non-invasive, which means it can be clamped around the wire without disconnecting it, making it easy to install and safe to use. The Version 3.0 PZEM is an upgraded version of the older PZEM-004T for which you can find the library Here Main features I’ve also noticed that since adding in Modbus, my startup and shutdown/restart times are significantly longer, with 2021-08-17 08:10:04 ERROR (SyncWorker_6) [homeassistant.components.modbus.modbus] Pymodbus: Modbus Error: [Input/Output] Modbus Error: [Invalid Message] No response received, expected at least 2 bytes (0 received) scattered throughout my logs. Create user_config_override.h in the tasmota folder and paste the contents of this sample configuration file. PlatformIO ~

PZEM-004T PC interface app download | SourceForge.net PZEM-004T PC interface app download | SourceForge.net

Pzem-004T Module berührungssicher verbauen, Ich habe die Wechselspannung-Seite bis zu den Optokopplern mit Schrumpfschlauch vor versehentlichem berühren geschützt (neuere Modelle sind nun in ein Gehäuse verbaut) The PZEM-004T module is produced by a company called Peacefair, there are 10 Ampere and 100 Ampere models. Please be careful because the wiring between the 10 Ampere models with 100 Amperes is different, if a short circuit or a short circuit can occur in the electrical network. The Difference Between PZEM-004T V2.0 and PZEM-004T V3.0 PZEM-004T V2.0 and PZEM-004T V3.0This module is an upgraded version of the PZEM-004T with frequency and power factor measurement features, available at the usual places. It communicates using a TTL interface over a Modbus-RTU like communication protocol but is incompatible with the older @olehs library found here: https://github.com/olehs/PZEM004T. I would like to thank @olehs for the great library which inspired me to write this one. Manufacturer (optimistic) specifications Function float current = pzem.current(); if(current != NAN){ Serial.print("Current: "); Serial.print(current); Serial.println("A"); } else { Serial.println("Error reading current"); } float power = pzem.power(); if(current != NAN){ Serial.print("Power: "); Serial.print(power); Serial.println("W"); } else { Serial.println("Error reading power"); } float energy = pzem.energy(); if(current != NAN){ Serial.print("Energy: "); Serial.print(energy,3); Serial.println("kWh"); } else { Serial.println("Error reading energy"); } float frequency = pzem.frequency(); if(current != NAN){ Serial.print("Frequency: "); Serial.print(frequency, 1); Serial.println("Hz"); } else { Serial.println("Error reading frequency"); } float pf = pzem.pf(); if(current != NAN){ Serial.print("PF: "); Serial.println(pf); } else { Serial.println("Error reading power factor"); } Serial.println(); delay(2000); Note: 14 in the sending command is the alarm value (14 is a hexadecimal data representation, which converted to decimal is 20). What you should note is the power alarm value of this module is based on KW units, which means the minimum alarm value is 1KW, the maximum value is 22KW.

AC communication module PZEM-004T V3.0 User Manual

Per Theo - As the PZEM is a dedicated energy monitor, device calibration in TASMOTA is currently not supported. PZEM-016 ~ Building Automation: In commercial buildings, power monitoring systems can be integrated into building automation systems to monitor and control energy consumption, lighting, HVAC systems, and other electrical devices to enhance energy efficiency and sustainability.

NAME":"HW-655 PZEM","GPIO":[0,62,0,63,0,0,0,0,0,0,0,0,0],"FLAG":0,"BASE":18} PZEM-004T version V3 ~