DYI Electrical and auditory stimulation

Communities DIY Corner
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Hello Forum,

hopefully I am not at the wrong place. I want to build a device with the following key characteristics:

Electrical Stimulation:
3 biphasic square-wave pulses per burst.
150 µs per phase, alternating polarity.
1 ms interval between consecutive pulses (from the onset of one pulse to the next).
Stimulation applied through electrodes 2 electrodes.
Auditory Stimulation:
10 ms tone duration with a 1 ms rise/fall envelope.
adjustable frequency
amp with 3.5 mm jack
Timing:
Electrical stimulation begins 1 ms after the auditory stimulus ends.

Controls for volume and stimulation. I think for the first electrode 0.3-3 ma and for the second 0.5-5 ma on 5 volts should be fine. Of course I thought about using an arduiono for the controls but can it be precise down to 1 µs ?

Maybe somebody here can point me in the right direction to get started with this project or should I just outright pay for somebody to help me with it? I have a bit of knowledge about micro controllers and electronics but not really in depth.

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I can see only 2 use cases for the device you’re planning to make:

  1. medical
  2. torture

In both cases, you won’t find anyone here helping you. The latter is so obvious as not needing an explanation, but for medical stuff, this requires some very serious research into the effects of the device on patients and has serious risks if done wrong. Financial is the least of those, you could end up in jail for a long, very long time. And still have to pay enormous amounts of compensation to patients and/or their relatives :roll_eyes:

2 Likes
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:smiley: of course I want to torture myself with 3ma. I can get the arduino in the 4-5 microsecond range but probably there is a limitation.