It is right but the video is not making some details clear. The AC Main wire has to pass through the center of the blue current transformer. That is why the two black wires are connected to the device. The AC Mains does not connect to the measurement circuit, it simply passes through the CT. A lot of detail is missing on how that CT measurement is turned into a Volt, Amp, Power measurement. It is probably not sensing the voltage and that has been hard coded. Then the ADC is being used to read the CT.
As @JonSmirl correctly mentioned, further details are a current transformer (CT) generates a voltage at its terminals that is proportional to the current flowing through the primary conductor. In my setup, I’ve connected a 150-ohm burden resistor across the CT terminals to convert the output into a measurable voltage. However, the voltage generated by the CT is alternating current (AC), so to measure it using a microcontroller, I first need to rectify and smooth the signal. To do this, I used a diode to block the negative half of the AC cycle, essentially converting it into a pulsating direct current (DC). To further smooth out the ripples, I added a 10µF capacitor, which provides a more stable DC output. In my specific case, with 10 amps flowing through the primary conductor, I get a steady 3V DC at the output. This 3V DC signal is then fed into the analog pin of the microcontroller for further processing in the code, allowing for the measurement of the current flowing in the main wire.
It seams a great object.
Do you know if BLE is iPad, iPhone compatible?
Thanks a lot for share
yes I think silicon lab app is working in IOS if it is then you good to go.
Something does not add up. Why are you using current sensor bit then connecting wire to measure current ?
It is right but the video is not making some details clear. The AC Main wire has to pass through the center of the blue current transformer. That is why the two black wires are connected to the device. The AC Mains does not connect to the measurement circuit, it simply passes through the CT. A lot of detail is missing on how that CT measurement is turned into a Volt, Amp, Power measurement. It is probably not sensing the voltage and that has been hard coded. Then the ADC is being used to read the CT.
As @JonSmirl correctly mentioned, further details are a current transformer (CT) generates a voltage at its terminals that is proportional to the current flowing through the primary conductor. In my setup, I’ve connected a 150-ohm burden resistor across the CT terminals to convert the output into a measurable voltage. However, the voltage generated by the CT is alternating current (AC), so to measure it using a microcontroller, I first need to rectify and smooth the signal.
To do this, I used a diode to block the negative half of the AC cycle, essentially converting it into a pulsating direct current (DC). To further smooth out the ripples, I added a 10µF capacitor, which provides a more stable DC output. In my specific case, with 10 amps flowing through the primary conductor, I get a steady 3V DC at the output.
This 3V DC signal is then fed into the analog pin of the microcontroller for further processing in the code, allowing for the measurement of the current flowing in the main wire.