[GreenKeys] Computer interfaces?

[abowman89]

So ive been trying to breadboard the interface board on https://www.aetherltd.com/connecting.html but have yet to get it to work.  My question is do i have to change something since my model 15 is only a r/o?  I have the original power supply and have verified the voltage and amps are good.Sent via the Samsung Galaxy Note20 5G, an AT&T 5G smartphone
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