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PZEM-004T v3.0 and NodeMCU / Wemos Mini running on Blynk - How To procedure

Projects made with Blynk

esp8266

PeteKnight October 31, 2020, 8:42am 71

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Problem PZEM-004T Version 3.0 Projects made with Blynk

make a wiring connection for PZEM-004 v3.0 and ESP8266: (either NodeMCU and Wemos) ESP8266 5V ==> PZEM 5V ESP8266 G ==> PZEM GND ESP8266 Rx ==> PZEM_Rx -> D6(GPIO12 - Tx) ESP8266 Tx ==> PZEM_Tx -> D5(GPIO14 - Rx) #include <SoftwareSerial.h> SoftwareSerial pzem(14,12); // (RX,TX) connect to TX,RX of PZEM for ESP8266 bare board void resetEnergy(uint8_t slaveAddr){ //The command to reset the slave's energy is (total 4 bytes): //Slave address + 0x42 + CRC check high byte + CR…

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