Getting 65535 values for Current and voltage

[abraralishah12]

I am currently working on a PROJECT and ordered your PCB without esp32 full kit. And I am getting 65535 values for both current and voltage

[CircuitSetup]

The first thing to check is that everything is wired correctly. Do the meter and esp32 share a ground? Are the SPI wires connected on the pins specified in the program? Also, how is everything being powered?

[abraralishah12]

Yes they share a ground. SPI wires are connected as specified in the program. Currently, I am powering them from USB port. I haven't connected the 9V transformer yet. I used a 9V transformer earlier but it had damaged my IC and ESp32. So right now I am only checking Current value.

[abraralishah12]

@CircuitSetup kindly assist me on above issue.

[CircuitSetup]

Wait, what exactly did the 9V AC transformer burn out? It should only be plugged directly into the meter.

When you power the ESP32 via micro USB, is the meter showing a green light? Do any of the other lights blink when a current transformer is hooked up and around a wire with current going through it?

[abraralishah12]

When I power esp32 with USB, green led blinks. When I ordered the PCB resistor array was short so other LEDs did not blink because of the open path in the PCB circuit.

[abraralishah12]

@CircuitSetup kindly have a look at it.

[CircuitSetup]

When I power esp32 with USB, green led blinks. When I ordered the PCB resistor array was short so other LEDs did not blink because of the open path in the PCB circuit.

Is there a solid green light on the meter?

Specifically, what program are you running on the ESP32?

[abraralishah12]

@CircuitSetup yes, green led, and it blinks when I power it with USB. Below is the code: `

include

const int CS_pin = 5; / 18 - CLK 19 - MISO 23 - MOSI /

unsigned short VoltageGain = 37106; unsigned short CurrentGainCT1 = 25498; unsigned short CurrentGainCT2 = 25498; unsigned short LineFreq = 389; unsigned short PGAGain = 21;

ATM90E32 eic{}; //initialize the IC class

void setup() { / Initialize the serial port to host / Serial.begin(115200);

while (!Serial) { ; // wait for serial port to connect. Needed for native USB }

/* Wire.begin();

display.begin(SSD1306_SWITCHCAPVCC);

// Clear the buffer. display.clearDisplay(); display.setCursor(0, 0);

display.setTextSize(1.5); display.setTextColor(WHITE); */

/Initialise the ATM90E32 + SPI port / Serial.println("Start ATM90E32"); eic.begin(CS_pin, LineFreq, PGAGain, VoltageGain, CurrentGainCT1, 0, CurrentGainCT2); delay(1000); }

void loop() {

/Repeatedly fetch some values from the ATM90E32 / float voltageA, voltageC, totalVoltage, currentA, currentC, totalCurrent, realPower, powerFactor, temp, freq;

voltageA = eic.GetLineVoltageA(); // Voltage B is not used voltageC = eic.GetLineVoltageC(); totalVoltage = voltageA + voltageC ; currentA = eic.GetLineCurrentA(); // Current B is not used currentC = eic.GetLineCurrentC(); totalCurrent = currentA + currentC; realPower = eic.GetTotalActivePower(); powerFactor = eic.GetTotalPowerFactor(); temp = eic.GetTemperature(); freq = eic.GetFrequency();

Serial.println("VA:" + String(voltageA) + "V"); Serial.println("VC:" + String(voltageC) + "V"); Serial.println("IA:" + String(currentA) + "A"); Serial.println("IC:" + String(currentC) + "A");

delay(1000); delay(14000);

/ //Clear display to prevent burn in display.clearDisplay(); display.display(); / } `

[abraralishah12]

@CircuitSetup have a look at the code please