PZEM-004T V3.0 Energy Monitor Module Arduino (A to Y) see Edit below. скачать в хорошем качестве

PZEM-004T V3.0 Energy Monitor Module Arduino (A to Y) see Edit below.

Connection, Change Address, Single and Multiple Devices PS (Edit): 1) Multiple Pzems on Single Serial are limited to 4 or 5. Due to power limitation on each pin. However someone has tried to remove LEDs on pzem to decrease power consumption and increase number of Pzems. Another Solution is to use multiple Serial Ports (Hardware or Software). 2) I changed Pzem Address , connecting individualy. Also reported by a user, address change sketech give problems if multiple Pzems are connected Multiple Pzems Code: Step 1: . Change PZems Addresses in sequence like 0x10, 0x11, 0x12 etc . Use "Change Address" Code from Examples . Each Pzem Need to have Separate Address The Code: #include PZEM004Tv30.h // PZEM004Tv30.h Enclose in Angle Brackets Else it will not work #define PZEM_SERIAL Serial2 #define NUM_PZEMS 4 PZEM004Tv30 pzems[NUM_PZEMS]; float pzemVolt[NUM_PZEMS -1]; float pzemWatts[NUM_PZEMS -1]; void setup() { //Declaring Pzem Serial Port & Address for(int i = 0; i == NUM_PZEMS -1; i++) { //Starting Address 0x10 , Assumption Address of All Pzem are in Sequence like 0x10, 0x11 0x12 etc pzems[i] = PZEM004Tv30(PZEM_SERIAL, 16, 17, 0x10 + i); } } void loop() { //Read Individual pzemVolt[0] = pzems[0].voltage(); if (isnan(pzemVolt[0])){ pzemVolt[0] = 0; } pzemWatts[0] = pzems[0].power(); if (isnan(pzemWatts[0])){ pzemWatts[0] = 0; } //Read Multiple for(int i = 1; i == NUM_PZEMS - 1; i++) { pzemVolt[i] = pzems[i].voltage(); if (isnan(pzemVolt[i])) {pzemVolt[i] = 0; } pzemWatts[i] = pzems[i].power(); if (isnan(pzemWatts[i])) {pzemWatts[i] = 0; } } delay(3000); } //Code Ends 00:00 - Intro 00:35 - Library 01:57 - Wiring 03:30 - TiP: RS485 06:00 - Change Address 14:15 - AC Current Necessary 16:00 - Read Power Data 18:50 - Multiple Devices