I have assembled vr conditioner board top side with just opto couple, it should work ok with vr jumper configuration? Not sure about jp4 and jp5 jumper, probably set to vr because opto couple has 10k pull up on output.PSIG wrote: ↑Fri Jul 23, 2021 4:45 pmNote in that Wiki diagram to only use the R1 resistor if testing shows it is needed to fully pull to ground.
An example of using the blocking diodes can be found here, with a photo of his board using the resistors as the jumpers a few posts later. Yes, it works for any signal that pulls to ground and is over 5V.
You may be missing the concept. The diagram is correct. The diode simply blocks any +12V from going into Speeduino from the sensor/module, but does not block grounding by the sensor, allowing the 5V from the Speeduino "Hall" jumper to be pulled-down by the sensor. This gives a 5V-0V signal with no signal conditioner board.
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