costi_b

https://aisler.net/ Incearca si aici. Este mai scump ca in China, posibil sa ai termen de livrare mai rapid.

Ai nevoie de proiectare PCB sau productie? Pentru productie trimite fisierele Gerber la JLCPCB si primesti 5 bucati la 20 lei cu transport in 2 saptamani.

Verifica placa de baza in jurul suruburilor unde sunt prinse bornele de iesire si in jurul secundarelor de la transformator. Am gasit cateva cazuri cand era carbonizata.

Mulțumesc încă odată, funcționează. Urmează să testez pe placa reală, am testat pe un Wemos D1 că e mai ușor de programat, dar partea de inițializare merge cum doream. 22:57:47.250 -> Channel update successful. 22:57:47.250 -> Energy: 8.50 Wh

Multumesc, o să testez diseară, acum sunt la muncă.

Am un sistem de monitorizare a energiei produse de panourile fotovoltaice. Până la sfârșitul anului trecut a funcționat pe Blynk, dar au oprit serverul gratuit. Am decis să trec monitorizarea pe ThingSpeak. Am reușit să fac un program care funcționează. /* INA226 Bi-directional Current/Power Monitor. Simple Example. Read more: http://www.jarzebski.pl/arduino/czujniki-i-sensory/cyfrowy-czujnik-pradu-mocy-ina226.html GIT: https://github.com/jarzebski/Arduino-INA226 Web: http://www.jarzebski.pl (c) 2014 by Korneliusz Jarzebski */ #include <ArduinoOTA.h> #include <ESP8266WiFi.h> #include <INA226.h> #include <Wire.h> #include <ThingSpeak.h> //#include <aREST.h> //#include <EthernetClient.h> #define SSID "XXXXX" #define PASSWORD "XXXXXX" unsigned long myChannelNumber = XXXXX; // Thingspeak channel ID here const char * myWriteAPIKey = "XXXXXXX"; // Write API key here const char * myReadAPIKey = "XXXXXX"; char server[] = "api.thingspeak.com"; // Serverul ThingSpeak INA226 ina; void checkConfig() { Serial.print("Mode: "); switch (ina.getMode()) { case INA226_MODE_POWER_DOWN: Serial.println("Power-Down"); break; case INA226_MODE_SHUNT_TRIG: Serial.println("Shunt Voltage, Triggered"); break; case INA226_MODE_BUS_TRIG: Serial.println("Bus Voltage, Triggered"); break; case INA226_MODE_SHUNT_BUS_TRIG: Serial.println("Shunt and Bus, Triggered"); break; case INA226_MODE_ADC_OFF: Serial.println("ADC Off"); break; case INA226_MODE_SHUNT_CONT: Serial.println("Shunt Voltage, Continuous"); break; case INA226_MODE_BUS_CONT: Serial.println("Bus Voltage, Continuous"); break; case INA226_MODE_SHUNT_BUS_CONT: Serial.println("Shunt and Bus, Continuous"); break; default: Serial.println("unknown"); } Serial.print("Samples average: "); switch (ina.getAverages()) { case INA226_AVERAGES_1: Serial.println("1 sample"); break; case INA226_AVERAGES_4: Serial.println("4 samples"); break; case INA226_AVERAGES_16: Serial.println("16 samples"); break; case INA226_AVERAGES_64: Serial.println("64 samples"); break; case INA226_AVERAGES_128: Serial.println("128 samples"); break; case INA226_AVERAGES_256: Serial.println("256 samples"); break; case INA226_AVERAGES_512: Serial.println("512 samples"); break; case INA226_AVERAGES_1024: Serial.println("1024 samples"); break; default: Serial.println("unknown"); } Serial.print("Bus conversion time: "); switch (ina.getBusConversionTime()) { case INA226_BUS_CONV_TIME_140US: Serial.println("140uS"); break; case INA226_BUS_CONV_TIME_204US: Serial.println("204uS"); break; case INA226_BUS_CONV_TIME_332US: Serial.println("332uS"); break; case INA226_BUS_CONV_TIME_588US: Serial.println("558uS"); break; case INA226_BUS_CONV_TIME_1100US: Serial.println("1.100ms"); break; case INA226_BUS_CONV_TIME_2116US: Serial.println("2.116ms"); break; case INA226_BUS_CONV_TIME_4156US: Serial.println("4.156ms"); break; case INA226_BUS_CONV_TIME_8244US: Serial.println("8.244ms"); break; default: Serial.println("unknown"); } Serial.print("Shunt conversion time: "); switch (ina.getShuntConversionTime()) { case INA226_SHUNT_CONV_TIME_140US: Serial.println("140uS"); break; case INA226_SHUNT_CONV_TIME_204US: Serial.println("204uS"); break; case INA226_SHUNT_CONV_TIME_332US: Serial.println("332uS"); break; case INA226_SHUNT_CONV_TIME_588US: Serial.println("558uS"); break; case INA226_SHUNT_CONV_TIME_1100US: Serial.println("1.100ms"); break; case INA226_SHUNT_CONV_TIME_2116US: Serial.println("2.116ms"); break; case INA226_SHUNT_CONV_TIME_4156US: Serial.println("4.156ms"); break; case INA226_SHUNT_CONV_TIME_8244US: Serial.println("8.244ms"); break; default: Serial.println("unknown"); } Serial.print("Max possible current: "); Serial.print(ina.getMaxPossibleCurrent()); Serial.println(" A"); Serial.print("Max current: "); Serial.print(ina.getMaxCurrent()); Serial.println(" A"); Serial.print("Max shunt voltage: "); Serial.print(ina.getMaxShuntVoltage()); Serial.println(" V"); Serial.print("Max power: "); Serial.print(ina.getMaxPower()); Serial.println(" W"); } void setup() { Serial.begin(115200); Serial.println("Initialize INA226"); Serial.println("-----------------------------------------------"); // Default INA226 address is 0x40 ina.begin(); // Configure INA226 ina.configure(INA226_AVERAGES_4, INA226_BUS_CONV_TIME_4156US, INA226_SHUNT_CONV_TIME_4156US, INA226_MODE_SHUNT_BUS_CONT); // Calibrate INA226. Rshunt = 0.01 ohm, Max excepted current = 4A // ina.calibrate(0.01, 4); // ina.calibrate(0.01, 0.4); // ina.calibrate(0.47, 1); ina.calibrate(0.005, 16.384); // ina.calibrate(0.047, 1); // Display configuration checkConfig(); Serial.println("-----------------------------------------------"); WiFi.hostname("INA226_OTA"); // DHCP Hostname (useful for finding device for static lease) WiFi.mode(WIFI_STA); WiFi.begin(SSID, PASSWORD); while (WiFi.waitForConnectResult() != WL_CONNECTED) { delay(50); } ArduinoOTA.setHostname("INA226_OTA"); ArduinoOTA.setPassword(""); ArduinoOTA.begin(); Serial.print("IP address:\t"); IPAddress myIP = WiFi.localIP(); Serial.println(myIP); WiFiClient client; ThingSpeak.begin(client); delay(100); } float watthour(0); //float watthour = ThingSpeak.readFloatField(myChannelNumber, 5, myReadAPIKey); unsigned long lastMeasureMs; unsigned long lastReportMs; float Power(0); float ppower(0); const int deltat = 1000; const int ReportTime = 137000; unsigned long deltath(0); float Voltage(0); float Current(0); void loop() { if (millis() - lastMeasureMs > 999) { //Serial.print("Bus voltage: "); //Serial.print(ina.readBusVoltage() * 10, 5); //Serial.println(" V"); Voltage = ina.readBusVoltage() * 10; //Serial.print("Bus power: "); // Serial.print(ina.readBusPower(), 5); // Serial.println(" W"); Power = ina.readBusPower() * 10; //Serial.print("Shunt voltage: "); //Serial.print(ina.readShuntVoltage() * 1000, 5); //Serial.println(" mV"); //Serial.print("Shunt current: "); //Serial.print(ina.readShuntCurrent() * 1000, 5); //Serial.println(" mA"); Current = ina.readShuntCurrent() * 1000; deltath = deltat / 3.6e6; // sampling period in hours (deltat in [ms]) watthour = watthour + (Power + ppower) / 2.0 * deltath; // integer for trapezoids ppower = Power; // then updates the power // Serial.print("Energy: "); //Serial.print(watthour); //Serial.println(" Wh"); //Serial.println(""); lastMeasureMs = millis(); } if (millis() - lastReportMs > ReportTime) { WiFiClient client; ThingSpeak.begin(client); ThingSpeak.setField(1, Voltage); ThingSpeak.setField(2, Power); ThingSpeak.setField(3, watthour); ThingSpeak.setField(4, Current); // Write to ThingSpeak. There are up to 8 fields in a channel, allowing you to store up to 8 different // pieces of information in a channel. Here, we write to field 1. int x = ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey); if (x == 200) { Serial.println("Channel update successful."); Serial.print("Energy: "); Serial.print(watthour); Serial.println(" Wh"); } else { Serial.println("Problem updating channel. HTTP error code " + String(x)); } lastReportMs = millis(); } ArduinoOTA.handle(); delay(1); } Doresc să inițializez o variabilă la pornire cu ultima valoare din câmpul ThingSpeak. Dacă o inițializez cu 0 totul merge perfect float watthour(0); Dacă ințializez float watthour = ThingSpeak.readFloatField(myChannelNumber, 5, myReadAPIKey); programul se compilează dar placa se resetează în continuu la pornire, nu apucă să facă nici conectarea la Wifi. Am testat un program care citește o valoare din server cu instrucțiunea respectivă și funcționează, diferența este că citirea se face în bucla principală, dar eu vreau să citesc valoarea o singură dată la pornire, nu la fiecare rular a buclei. Menționez că nu sunt programator.