Code V1
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config.h
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The MIT License (MIT)
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Copyright (c) 2020
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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#include <Arduino.h>
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#include <WiFi.h>
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#include <WiFiMulti.h>
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#include <InfluxDbClient.h>
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#include <PZEM004Tv30.h>
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#include "config.h"
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WiFiMulti WiFiMulti;
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InfluxDBClient client(INFLUXDB_URL, INFLUXDB_DB_NAME);
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PZEM004Tv30 pzem[3] = {
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PZEM004Tv30(&Serial2, 0x11),
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PZEM004Tv30(&Serial2, 0x12),
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PZEM004Tv30(&Serial2, 0x13)
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};
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// Data point
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Point sensor[4] = {
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Point("PowerBox"),
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Point("PowerBox"),
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Point("PowerBox"),
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Point("PowerBox")
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};
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void ConnectToWiFiMulti() {
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WiFi.mode(WIFI_STA);
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WiFiMulti.addAP(SSID, WiFiPassword);
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Serial.println("Connecting Wifi...");
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while (WiFiMulti.run() != WL_CONNECTED) {
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delay(100);
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}
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Serial.println("");
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Serial.println("WiFi connected");
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Serial.println("IP address: ");
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Serial.println(WiFi.localIP());
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}
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void ConnectToInflux() {
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// Add constant tags - only once
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sensor[0].addTag("Device", "ESP32");
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sensor[1].addTag("Power_Phase", "Phase_1");
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sensor[2].addTag("Power_Phase", "Phase_2");
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sensor[3].addTag("Power_Phase", "Phase_3");
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// Check server connection
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if (client.validateConnection()) {
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Serial.print("Connected to InfluxDB: ");
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Serial.println(client.getServerUrl());
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} else {
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Serial.print("InfluxDB connection failed: ");
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Serial.println(client.getLastErrorMessage());
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}
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}
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void setup() {
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Serial.begin(115200);
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ConnectToWiFiMulti();
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ConnectToInflux();
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}
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void loop() {
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sensor[0].clearFields();
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sensor[0].addField("wifi-rssi", WiFi.RSSI());
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//read sensors
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for(int i=0;i<3;i++){
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sensor[i+1].clearFields();
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float voltage = pzem[i].voltage();
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if(!isnan(voltage)){
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sensor[i+1].addField("voltage", voltage);
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} else {
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Serial.println("Error reading voltage");
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}
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float current = pzem[i].current();
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if(!isnan(current)){
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sensor[i+1].addField("current", current);
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} else {
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Serial.println("Error reading current");
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}
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float power = pzem[i].power();
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if(!isnan(power)){
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sensor[i+1].addField("power", power);
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} else {
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Serial.println("Error reading power");
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}
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float energy = pzem[i].energy();
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if(!isnan(energy)){
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sensor[i+1].addField("energy", energy);
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} else {
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Serial.println("Error reading energy");
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}
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float frequency = pzem[i].frequency();
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if(!isnan(frequency)){
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sensor[i+1].addField("freq", frequency);
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} else {
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Serial.println("Error reading frequency");
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}
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float pf = pzem[i].pf();
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if(!isnan(pf)){
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sensor[i+1].addField("power-factor", pf);
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} else {
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Serial.println("Error reading power factor");
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}
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}
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// If no Wifi signal, try to reconnect it
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if ((WiFi.RSSI() == 0) && (WiFiMulti.run() != WL_CONNECTED))
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Serial.print("Writing: ");
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Serial.println(sensor[0].toLineProtocol());
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Serial.println(sensor[1].toLineProtocol());
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Serial.println(sensor[2].toLineProtocol());
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Serial.println(sensor[3].toLineProtocol());
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// Write point
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for(int i=0;i<4;i++){
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if (!client.writePoint(sensor[i])) {
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Serial.print(i);
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Serial.print(": InfluxDB write failed: ");
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Serial.println(client.getLastErrorMessage());
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}
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}
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//Wait 5s
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Serial.println("Wait ~5s");
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delay(4000);
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}
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# ESP32-PowerMonitoring (PowerBox/3Phase)
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My take on a power measurement device using a ESP32 & PZEM-004T-v30
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## Hardware requiered
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- ESP32 Dev Board
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- PZEM-004T-v30 Sensor
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- InfluxDB server
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### Libraries used
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- [mandulaj/PZEM-004T-v30](https://github.com/mandulaj/PZEM-004T-v30) - for sensor measuring
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- [tobiasschuerg/InfluxDB-Client-for-Arduino](https://github.com/tobiasschuerg/InfluxDB-Client-for-Arduino) - for influxdb connection
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const char *SSID = "ssid";
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const char *WiFiPassword = "password";
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const char *INFLUXDB_URL = "http://ip:8086";
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const char *INFLUXDB_DB_NAME = "dbname";
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11
README.md
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README.md
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# ESP32-PowerMonitoring
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# ESP32-PowerMonitoring
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ESP32 + PZEM-004T-v30 Power Monitoring With InfluxDB & Grafana
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My take on a power measurement device using a ESP32 & PZEM-004T-v30
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## Hardware requiered
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- ESP32 Dev Board
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- PZEM-004T-v30 Sensor
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- InfluxDB server
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### Libraries used
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- [mandulaj/PZEM-004T-v30](https://github.com/mandulaj/PZEM-004T-v30) - for sensor measuring
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- [tobiasschuerg/InfluxDB-Client-for-Arduino](https://github.com/tobiasschuerg/InfluxDB-Client-for-Arduino) - for influxdb connection
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The MIT License (MIT)
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Copyright (c) 2020
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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# ESP32-PowerMonitoring (Solar)
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My take on a power measurement device using a ESP32 & PZEM-004T-v30
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## Hardware requiered
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- ESP32 Dev Board
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- PZEM-004T-v30 Sensor
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- InfluxDB server
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### Libraries used
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- [mandulaj/PZEM-004T-v30](https://github.com/mandulaj/PZEM-004T-v30) - for sensor measuring
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- [tobiasschuerg/InfluxDB-Client-for-Arduino](https://github.com/tobiasschuerg/InfluxDB-Client-for-Arduino) - for influxdb connection
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#include <Arduino.h>
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#include <WiFi.h>
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#include <WiFiMulti.h>
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#include <InfluxDbClient.h>
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#include <PZEM004Tv30.h>
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#include "config.h"
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WiFiMulti WiFiMulti;
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InfluxDBClient client(INFLUXDB_URL, INFLUXDB_DB_NAME);
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PZEM004Tv30 pzem(&Serial2);
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// Data point
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Point sensor("Solar_1");
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void ConnectToWiFiMulti() {
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WiFi.mode(WIFI_STA);
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WiFiMulti.addAP(SSID, WiFiPassword);
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Serial.println("Connecting Wifi...");
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while (WiFiMulti.run() != WL_CONNECTED) {
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delay(100);
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}
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Serial.println("");
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Serial.println("WiFi connected");
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Serial.println("IP address: ");
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Serial.println(WiFi.localIP());
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}
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void ConnectToInflux() {
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// Add constant tags - only once
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sensor.addTag("device", "ESP32-Solar");
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// Check server connection
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if (client.validateConnection()) {
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Serial.print("Connected to InfluxDB: ");
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Serial.println(client.getServerUrl());
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} else {
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Serial.print("InfluxDB connection failed: ");
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Serial.println(client.getLastErrorMessage());
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}
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}
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void setup() {
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Serial.begin(115200);
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ConnectToWiFiMulti();
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ConnectToInflux();
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}
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void loop() {
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sensor.clearFields();
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sensor.addField("wifi-rssi", WiFi.RSSI());
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float voltage = pzem.voltage();
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if(!isnan(voltage)){
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sensor.addField("voltage", voltage);
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} else {
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Serial.println("Error reading voltage");
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}
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float current = pzem.current();
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if(!isnan(current)){
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sensor.addField("current", current);
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} else {
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Serial.println("Error reading current");
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}
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float power = pzem.power();
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if(!isnan(power)){
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sensor.addField("power", power);
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} else {
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Serial.println("Error reading power");
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}
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float energy = pzem.energy();
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if(!isnan(energy)){
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sensor.addField("energy", energy);
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} else {
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Serial.println("Error reading energy");
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}
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float frequency = pzem.frequency();
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if(!isnan(frequency)){
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sensor.addField("freq", frequency);
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} else {
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Serial.println("Error reading frequency");
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}
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float pf = pzem.pf();
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if(!isnan(pf)){
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sensor.addField("power-factor", pf);
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} else {
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Serial.println("Error reading power factor");
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}
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// If no Wifi signal, try to reconnect it
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if ((WiFi.RSSI() == 0) && (WiFiMulti.run() != WL_CONNECTED))
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Serial.println("Wifi connection lost");
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// Write point
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if (!client.writePoint(sensor)) {
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Serial.print("InfluxDB write failed: ");
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Serial.println(client.getLastErrorMessage());
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}
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//Wait 5s
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Serial.println("Wait ~5s");
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delay(4000);
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}
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@ -0,0 +1,6 @@
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const char *SSID = "ssid";
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const char *WiFiPassword = "password";
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const char *INFLUXDB_URL = "http://ip:8086";
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const char *INFLUXDB_DB_NAME = "dbname";
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