https://forum.arduino.cc/t/creating-a-controllable-tens-machine/154522
so i found this and i'm trying to build this TENS as a school project but i'm trying add feature to it where it has a digital display, is it possible to use arduino to do this?
i have an idea of what the program will be in my head but i don't know where and how i would connect the arduino to this analog TENS
Did you read the topic? What was their conclusion?
If you want to continue, you must show your drawing, your "idea" of the program and write something about the project. A link to a link of a zip is not good.
i scanned it, but the topic was about changing the controls to arduino, im not trying to change the controls i'm only using the same schematic used in the topic
what i want to do is digitally display the pulse rate or pulse width or maybe the voltage too, so the arduino will read them in the analog pins then display them on an lcd but to my understanding the analog pins can only take up to 5V and the TENS has 80V maximum output
the TENS won't be tested on humans, the main goal is to add a digital display
and the code i only have a vague idea like analogread then some calibration
feel free to roast me, i'm a noob
Correct.
Assuming DC. Measure its peaks (DVM or oscilloscope). Find a DC-DC buck converter for that range. The output of the buck converter must be no higher than 5vdc.
Show it.
Read about the Arduino map() function to translate the 0vdc - 5vdc to words or lines on a screen.
Here is a simulation example of this... that might help your idea... (the trace moves at a constant rate, the knobs adjust "input" [volts?] and "amplification" [sensitivity])
This simulation shows "words" (printed text) as the graph.
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