arduino voltage sensor ac

Hello guys, and welcome, before we start anything, I want to warn you about messing with domestic voltage, power line, wall power. Hi, inputStats.setWindowSecs( windowLength ); Hello Yassine, If I get this working, Ill post a .ino file back to you. How do I get the the readings translated to the correct voltage. First, Thx for this very informative post! so, could you share that ZMPT101b parts library in .fzpz format please? Veff = (((VeffD 420.76) / -90.24) * -210.2) + 210.2; Hello. Can you help me in the project? This library is compatible with all architectures so you should be able to use it on all the Arduino Could you tell me what I should add in the code? Arduino IDE and install it from there. The output of this sensor is analog. float Volts_TRMS; // estimated actual current in amps Hi. First, the peak value of the sensor output voltage is divided by sqrt(2). I am unable to get the voltages as required, any clue where I am wrong. So adapted Gerhards version in the following way. 220 AC voltage vs Module output voltage. PLease help in it, Hi, I dont know what you mean by perimeters, is it something in the code or materials?? Hello Sir, For the last line to calibrate you can remove it, if you do this. I have doubts about Arduino program. Hello! Because I am getting like 440V instead of 220V, thank you. float fYellowPhaseVoltage; // stores the voltage in the Yellow Phase Thanks. Questions: 1- Im using an ESP32 microcontroller with Home Assistant (ESPHome). Its actually a formula to calculate the input voltage RMS by using the maximum value of the sensor output voltage. https://surtrtech.com/2019/12/11/measure-any-ac-current-with-acs712-and-arduino-lcd-oled/, How to fix this erros And we already know that the input voltage RMS is 220V. btw i really need zmpt101b fritzing part for my coursework and i see yours. and you already know the voltage over. Sensor=2; for 3 inputs. volts=analogRead(0)*(5.0/1023.0); Serial.println(volts); lcd.clear(); #include //Easy library to do the calculations, used for the AC voltage thing Thank you very much. If your voltage pattern is not complete, you have to turn the potentiometer on the module to display the full waveform.If the waveform is cut from the top or bottom, you will see an error in your measurement in the next step. The question youre asking is almost the same as an older comment. About the multimeter, cheap multimeters measure all AC signals as sinewaves, if you want to use it to calibrate, measure AC sinewave signal from a socket or after a transformer, but since I used a Triac based light dimmer I had to use a TRMS multimeter to get the right value., You can start by the values given above, as I said they are very sensitive, or you can put the Analog input to 0 and make slop=0 then adjust the intercept to get 0 as the result, then put the voltage to a known value, and the intercept to its new value and adjust the slope. exit status 1 Serial.begin( 9600 ); // start the serial port Your email address will not be published. Its because reference voltage (Vref) for ADC in ESP32 is 1.1 V. So your 1.65 V translate into 4095, because its out of range. So, I give you the same answer. boards. I found this GitHub: lcd.setCursor(5,1); const float fIntercept = -0.04; // to be adjusted based on calibration testing I am looking to use ZMPT101B only to monitor if our street power is ON, and therefore do not need to show graphics of sine wave. https://electropeak.com/learn/interfacing-ina219-current-sensor-module-with-arduino/ Our philosophy is simple. Save my name, email, and website in this browser for the next time I comment. Serial.print( B:); can we measure 400AC voltage and voltage Frequency ? You can do the same process for standard 120V. On the measuring function the Running statistics entity and setWindowSecs function, they need to be in loop, then the calculation and calibration should be in a separate loop. if(condition) you cant use it to measure 2 volts. Hi, did you ask me on hackster? Upload the following code to your Arduino and then open the Serial plotter window from the Tools menu. What is the cause that the sensor cant measure more than 250v? I want to check all 3 line with 3 ZMPT101Bs. inputStats.input(iSensor); //log to Stats function inputStatsT.setWindowSecs( windowLength ); while( true ) { const float fAmplitudeMultiplier = 40.3231; // some constand required to multiply with voltage, this can be tweeked if required unsigned long previousMillis = 0; void setup() { inputStats.setWindowSecs( windowLength ); #include //Easy library to do the calculations, used for the AC voltage thing, No problem, If you have problem with calibration, you can check my latest tutorial about current sensor ACS712 I use the same method. For us, thats using electronics to make ideas a reality! If the watchdog timer isnt periodically reset then it will automatically reset your ESP8266. Can you direct me to a place where I can get GOOD TESTED modules? Therefore, I need an Arduino (Particle.io) program that can monitor BPLs grid, switching OFF my homes power internally, when power is lost (will use UPS to power Arduino), then watching (with ZMPT) until BLPs power comes back on to then switch the entire house back ON again to BPLs grid. Actually, no, it can only measure AC voltage. Mein was based on an code I made before to measure current so I had to readjust, Hi my problem is that it deos not work ESP32, I am trying to get voltage reading on ESP32. previousMillis = millis(); // update time. Hi may i beg your zmpt101b fritzing parts? Serial.print( current_VoltsS ); //Calculation and Value display is done the rest is if you're using an OLED display, Serial.print( "\tVoltage (T): " ); float slope = 0.0405; // to be adjusted based on calibration testing thank you for your great article. As you can see in the first section of the tutorial, the ZMP101b module can only measure AC voltages up to 250 volts. All Rights Reserved, Interfacing 3D Printer 20X04 LCD Smart Controller with Arduino, Interfacing DS3231 Real Time Clock RTC Module with Arduino, https://electropeak.com/learn/interfacing-acs712-current-module-with-arduino/, https://electropeak.com/learn/interfacing-ina219-current-sensor-module-with-arduino/, https://electropeak.com/learn/interfacing-zmct103c-5a-ac-current-transformer-module-with-arduino/. current_Volts= current_Volts*(40.3231); if you understand one youll be able to do the others, Thank you Sir, HiLetgo 37 Sensors Assortment Kit 37 Sensors Kit Sensor Starter Kit for Arduino Raspberry pi Sensor kit 37 in 1 Robot Projects Starter Kits for Arduino Raspberry pi, Variety of Sensors for Your Electronic Projects, All customers get FREE Shipping on orders over $25 shipped by Amazon. it show abrupt changes in reading which is not good. Also, remember that ESP32 is a 3.3V microcontroller and 4096 means 3.3V. Hello sorry thats not a fritzing part, its just a .PNG that I integrated to fritzing. const int iBluePhaseSensorPin = 2; //Sensor analog input, pin A2 fYellowPhaseVoltage = GetACVoltage(iYellowPhaseSensorPin); 220 volts). i like this project. Did you remove that while(true)? Hi. https://electropeak.com/learn/interfacing-zmct103c-5a-ac-current-transformer-module-with-arduino/, Your email address will not be published. void setup() { Forgot to mention, I am using a Arduino Mega (clone) 2560, ZMPT101B, there are other things in the code but that has nothing to do with the AC voltage measuring thing, can put the full code if required. I have connected ESP32 Pin 2 or Pin 15 with ZMPT101B via shifter. Interfacing DHT11 Temperature/Humidity Sensor with Arduino, Interfacing ACS712 Current Module with Arduino. This could be used to shut off house circuits, or do a manual switch-on via your phone Hello The only thing I can mention, is to pay attention to the values, I operate the module with 5V, ESP32 has 3.3V, so try to adapt the values. (NB: the other multimeter is not measuring at that moment, check the video for more). Hi, Hello, your project is very good, thanks! 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Serial.print(iPhasePin : ); I know thats not the AC sinewave signal. How did you calculate the calibration values? you are right , I used Serial Monitor and view plotter, code run perfectly with Ardnino Un R3 , but this code does not work with ESP32. I didnt understand your explanation on that in the commwnt section as well. Because you should remove it if youre using the code in another project. const float fFrequency = 50; //Test signal frequency (Hz) Im testing on a Particle.io Argon board, as this will send out messages via the Particle.io API, so I can get alerts when power is cut. -Since it is needed for calculating the RMS- Then the rest is just a linear transformation to get an output around 220 from the sensor output voltage. }, float ReadVoltage(){ All you need to change is to replace A0 in line 28 and 29 with any of the pins of ESP32. Also dont forget that the module delivers a sinewave signal not a continuous one, if you just use the serial monitor to see the values it will show strange different values, and it would be difficult to measure them when AC is on. current_VoltsT = current_VoltsT*(40.3231); //Further calibrations for the amplitude, //current_VoltsR= current_VoltsR*(42); //Further calibrations for the amplitude, Serial.print( "\tVoltage (R): " ); Thanks in advanced, The library Im using is Filters.h, it reduces the amount of work for you, Download here, or from Github. const float fSlope = 0.0405; // to be adjusted based on calibration testing on Easy measure of AC Voltage using Arduino and ZMPT101B, Arduino RC LASER Tank, Self-propelled LASER Turret, Waterproof ultrasonic module JSN SR-04T to measure distance with Arduino, Easy measure of AC Voltage using Arduino and ZMPT101B, Measure any AC voltage (250VAC) with ZMPT101B and ESP8266 12E with Android App / Adafruit IO MQTT, Measure any AC current with ACS712 and Arduino + LCD / OLED, https://www.youtube.com/redirect?event=video_description&v=nExAAbO-Lc4&redir_token=6gl2uh2TPcHiTf8scjdwowsvAud8MTU1NjU0NDU0MUAxNTU2NDU4MTQx&q=http%3A%2F%2Fsentroino.blogspot.com%2F2015%2F12%2Fmeasuring-ac-voltage-using-arduino.html%3Fm%3D1, https://surtrtech.com/2019/12/11/measure-any-ac-current-with-acs712-and-arduino-lcd-oled/, https://esphome.io/components/display/ssd1306.html, https://github.com/Abdurraziq/ZMPT101B-arduino, Measure any AC current with ACS712 and Arduino + LCD / OLED SURTR TECHNOLOGY, https://www.arduino.cc/reference/en/language/structure/control-structure/if/, Measure any AC voltage (250VAC) with ZMPT101B and ESP8266 12E with Android App / Adafruit IO MQTT SURTR TECHNOLOGY, https://surtrtech.com/2020/04/08/measure-any-ac-voltage-250vac-with-zmpt101b-and-esp8266-12e-with-android-app-adafruit-io-mqtt/. This is the whole wiring, and as mentionned Im using an 12832 OLED screen you can use it or no, the module is powred by 5v and delivers an analog signal. Hi, float windowLength = 40.0/testFrequency; // how long to average the signal, for statistist, int SensorR = 0; //Sensor analog input, here it's A0 Sensor=1; float intercept = 1.5; // to be adjusted based on calibration testing First, please make sure everything is working fine: but it is same. Another video will be up soon that uses the same method to calculate the alternating current. I have just replaced the miliseconds check with a delay(1000). In My team we are building a Eletric generator .

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