Hi All, I am trying to measure an AC current at the secondary. With a bulb in series at the priamary i get 19A in the clamp meter. How can i read this with the TAMURA Current Sensor Thanks in Advance.

Random values of about 300 could be a floating (not connected) analogue pin. Not sure what to make of that "if (call == 0)" statement. In that snippet you fire a triac at a seemingly random time, and turn it off ater ~200 A/D samples. You sample for ~200*110ns, but the triac might be 'on' for lon…

here is the schematic of the sensor. i don't see anything on the serial out when using for (int i = 0; i < 200; i++) voltageSample[i] = analogRead(Vin); // read 200 samples into the array for (int i = 0; i < 200; i++) Serial.println(voltageSample[i]); // print the array [Capture.PNG]

Array works fine here, Try this short sketch. const byte sensorPin = A0; int sample[200]; int count; void setup() { Serial.begin(115200); } void loop() { for (int i = 0; i < 200; i++) sample[i] = analogRead(sensorPin); // read 200 samples into the array for (int i = 0; i < 200; i++) Serial…

You sample for ~200*110ns, 110 microseconds. i don't see anything on the serial out when using Code: [Select] for (int i = 0; i < 200; i++) voltageSample = analogRead(Vin); // read 200 samples into the array _ for (int i = 0; i < 200; i++) Serial.println(voltageSample*); // print the array*_ …

"110us" duhh, brain fart. Thanks for correcting that. Sure, showing a full wave on the serial plotter might even reveal more. This is not a resistive load, but AFAIK a welding current from a microwave transformer. Not sure if that 10k load resistor on the output of the sensor is needed. The sen…

ultimately the i'll be reading the pulse starting at the peak of the sine wave as that is how the triac will be fired.

I had earlier wired the senor wrong. Sorry about that. what does pin 22 on TQFP32 package map to on an arduino ? ADC 7 correct ? i get 1 in the serial monitor 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 …

So now we have a wave form plotted with those data [59e2f18ba2b84eb9959dede7c5c9f9d5c9898b5e.png] Please provide another graph obtained when there is no current. With current, the sensor is not putting out voltage which is expected.

does pin 22 on TQFP32 package map to on an arduino ? ADC 7 correct ? That's what my data sheet shows. Are you running this experiment with discreet components and a nano, or are you working with your custom board for the welder? If so, how are you accessing pin 22? Which pin are you identifying …

Interfacing an Hall effect Current Sensor TAMURA L06PXXXS05

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anishkgt October 14, 2018, 12:49pm 22

ok got it now. And Thanks WaWa for that simple sketch. So now we have a wave form plotted with those data

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Interfacing an Hall effect Current Sensor TAMURA L06PXXXS05

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