usb - How do I control power output with a program -


i programmer , want experimentation electricity. need control voltage, amperage , frequency (possibly modulation) of electrical current. writing code on mac, perhaps script running in terminal.

i envision device plugs power outlet , usb-connects laptop. api can install on machine , call script. on output produces current modified program.

please suggest best way approach this. perhaps device name can search for?

it's little bit old question maybe find helpful:

for professional use link should help: http://www.toellner.de/html/pages/en-homepage-products-power-supplies.htm pay attention possible dynamic range.

for use hobby maybe should try learn electronic. use pic18f [2 ] micro controller connect real world. avr [3 ] is job. connection between micro controller , pc can use usb-to-rs232 interface. analog voltage need digital-to-analog converter dac08 [4 ]. please don't think these done in few days. fantastic hobby, have ready learn lot.

a other way on little bit higher level use raspery pi, mark booth has written.


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