Arduino Precise High Voltage meter(0-100V DC) with an ADS 1115 - 16bit ADC | Code in the description
In this instructable/video, I've built a voltmeter to measure high voltages DC (0-100v) with relative precision and accuracy using an Arduino Nano.
This is my second attempt of building a precise volt meter and I am quite happy with the outcome.
You can find the complete instructable tutorial & code here: https://www.instructables.com/id/Ardu...
The test measurements I took were accurate enough, mostly within 0.1v of the actual voltage measured with a standard voltmeter (I used an Astro AI DM6000AR). This is close enough for my intended use of the device.
To archive this I used a 16 bit ADC converter.
There was no need to smooth or average the readings in this project. It was much easier than the previous one.
EDIT: Check the new self-powered version here: • Arduino self-powered Volt Meter (12-90v DC...
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Supplies Used in this video:
1 x Arduino Nano - https://amzn.to/2TiPaHY
1 x Oled Display (SSD 1306) - https://amzn.to/2LCPhts
1 x ADS 1115 - 16 bit ADC - https://amzn.to/2XO82kD
1 x 1/4W (I suggest using 1W resistors though) 1% Resistors - 220k ohm - https://amzn.to/3dVGfEc
1 x 1/4W (I suggest using 1W resistors though) 1% Resistors - 10k ohm - https://amzn.to/3dVGfEc
Breadboard and wires - https://amzn.to/2z0KmjH
Astro AI DM6000AR - https://amzn.to/3cJDVzR
USB Power Bank - https://amzn.to/3cEhk7Q
9V Batteries -https://amzn.to/2zST1o0
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