I would like to build a circuit to stimulate metal electrodes with biphasic (square wave) current pulses (in the uA - mA range).
The stimulation would be a negative pulse (+40uA, 200us), then 10 us (0A, inter-phase), then a positive pulse (-40uA, 200us). The frequency would be 1500 PPS (pulse per sec), so one "pulse" in this case would be 666.66 us (negative, inter-phase, positive, then 0A the remaining 256 us). Similar to the uploaded picture. The measurement time should be long enough (hours).
Also I somehow would like to measure the current during the pulses and the potential response of the electrode, then save it to txt files.
How would I even start with it? Is it possible to build such a device? I already have an UNO and an L298N module.
Thanks for the help.