I am in the process of adding Keyes Hall effect sensors to my x-carve for homing and eventually hard limits.
I have the sensors wired up and working on a breadboard, but I have been using a bench power supply to power the sensors.
What, in your opinion, is the best way to access the 5v I need from the arduino/gShield or PSU? (Not an x-controller).
Three possible options I am considering:
The 5v pin on the Arduino/gshield is underneath the wires for the Y-axis connections. I could solder in a header and run pins off of it, but that would create a bit of a tangle in an already tight spot.
I could ditch the stock enclosure and add an Arduino prototyping shield between the Arduino and the gShield. In addition to giving me a clean way to access the 5v pin, this would give me a place to put the RC low pass filters for the homing/limit sensors too.
Finally, I could just buy a DC-to-DC converter and tie into the PSU 24v step it down to 5v. This would only cost about $8 in parts and give me much more flexibility in running the wires since they won’t need to terminate at the Arduino/gShield (excepting the sensor wires to d9, d10, and d12).
Do you prefer one of these three options? Or do you have any alternative suggestions?