searching hackaday for "transcranial" turns up a few results. have fun! https://hackaday.com/2017/03/31/transcranial-electrical-stimulation-with-arduino-hot-glu

searching hackaday for "transcranial" turns up a few results. have fun! https://hackaday.com/2017/03/31/transcranial-electrical-stimulation-with-arduino-hot-glue/ https://hackaday.com/2017/03/31/transcranial-electrical-stim...