Reddit reviews Numato Lab Opto Isolator Breakout

It seems I'll need to change that in the cpu_map then because my VFD's minimum frequency is 2.0khz.

This is the opto isolater I got.

EDIT So the frequency is now definitely on 7.8khz and I still have the same issue. So once I get the opto isolator figured out that's my next (and hopefully final) step.

Arduino- any, as long as it works with the receiver.

Transistor/Mosfet/Optoisolator


http://www.amazon.com/uxcell%C2%AE-IRF520-Button-Arduino-Raspberry/dp/B00W8TXEAE?ie=UTF8&keywords=mosfet%20module&qid=1464360817&ref_=sr_1_1&sr=8-1

http://www.amazon.com/Numato-Lab-Opto-Isolator-Breakout/dp/B00UWSGXEW?ie=UTF8&keywords=optoisolator&qid=1464361849&ref_=sr_1_2&sr=8-2 -> http://3.bp.blogspot.com/-phVffuTIozI/TnFo6ElSU3I/AAAAAAAAD8g/l3DzlgcfAWs/s1600/GarageDoor-Opener-with-Optoisolator.png (source)

Relay http://www.amazon.com/TOOGOO-Module-Development-Appliance-Control/dp/B00TO7IY76?ie=UTF8&keywords=relay%20module&qid=1464360732&ref_=sr_1_3&sr=8-3 - depending on the current. It also draws more current, but can switch AC.


The relay and optocoupler solutions have the advantage of the circuits being independant.