Arduino Home Energy Monitor using CT Clamp Current Sensor & ZMPT101B AC Voltage Sensor

[@seven7sevenize]

For the current transformer (CT), the AC voltage ranges from -1V to +1V. However, the Arduino's Analog-to-Digital Converter (ADC) cannot process negative values. To address this, you need to establish a virtual ground, ensuring the AC signal stays within the positive range. If you set the virtual ground at 2.5V, for a 5V system, the maximum values could range from 1.5V to 3.5V. To achieve this, employ an appropriate resistor divider. Additionally, incorporate a capacitor alongside the top resistor in the divider to function as a high-pass filter. This setup should be calculated to allow frequencies around 10Hz, which is adequate for handling the usual AC signal frequencies of 50 or 60Hz. As per the Nyquist Theorem, your ADC's sampling rate must be at least double the frequency of the signal you're measuring. In practice, I often use an external 16-bit ADC and have optimized my code to sample at a rate of 800-900 samples per second for reliable measurements.

[@ChaplainDaveSparks]

This looks interesting. I would like something to measure and record voltage spikes on the AC line (mains). I will have to look at the specs and see if the two sensors (especially the voltage sensor) are capable of measuring and capturing a fast spike, such as the standard 8/20 μS waveform. It might even be the Arduino that would be the limiting factor.

[@Rolembeek33]

I think (hope) most people will have noticed that in the drawing (@04:15) there is a missing connection between the -12V and the mid connection of the 7805.

[@othmanmurad5267]

How may I use ZMPT101B AC Voltage Sensor to monitor two phases? I probably will need two sensors but how may implement them together?

[@anshulchauhan8439]

can you tell a good current sensor for measuring dc current other than ACS712 sensor as it is not providing proper reading

[@pramodjalgaonkar1221]

Sir can i measure dc current with this sensor ? THANKS FOR ANS 😊😊😊

[@MuhammadKamran-n5h]

can we use any other sensor instead of sct 103

[@d3891]

i wish to know how to integrate the ct clamp to a development board....i want t everything on a pcb

[@egoworks5611]

Have you found anything yet?

[@chuhaohuang129]

Hey bro, can u tell me how to buy the translator of 3.5mm earphone port to the GPIO? thx

[@irfanarefin1265]

how to measure power factor on this method?

[@pramodjalgaonkar1221]

Sir can i measure dc current on digital meter. Home light meter.

[@ElectroniClinic]

No. It's for ac voltages.

[@azam2821]

Nice

[@cgilleybsw]

1:00 - it was at this moment, I realized we're not in America. :)

[@AbdulRahman-en3ow]

1:36 it is better to replace it with invertor ,the k-electric bill would be out of the world

[@Unsung_explorer]

One of the worst CT, used all codes, circuit and calibration method still not worked😢

[@PlayerOne1999]

Hey. Do you earn enough from KZbin to do full time on KZbin?

[@ElectroniClinic]

Yes, I make 6 to 7 digits salary from KZbin , website, and Amazon.

[@PlayerOne1999]

Glad to hear that. You're one of the finest few youtuber from our country. Keep it up dude ❤

[@ROBOTRIX_eu]

[@anshulchauhan8439]

can you tell a good current sensor for measuring dc current other than ACS712 sensor as it is not providing proper reading

[@anshulchauhan8439]

can you tell a good current sensor for measuring dc current other than ACS712 sensor as it is not providing proper reading