Yes, the NO proximity switch is on the input of the relay, while 3.3v from the beaglebone is on the output. I think the issue is definitely that I'm not using a pull down resistor; I will try that tomorrow.
On Tuesday, November 21, 2017 at 2:47:29 PM UTC-6, Eric Keller wrote: > > > On Tue, Nov 21, 2017 at 2:27 PM, <[email protected] > <javascript:>> wrote: > >> I'm using 24v hall effect proximity switches linked to a mechanical relay >> to interface with the logic voltage (3.3v). I am not using a resistor, >> should I be adding it on the 24v side or the 3.3v side? >> >> I take it the proximity switches are on the coil (input) side of the > relays? What is on output side? Your circuit might work, but the contacts > should be hooked up to ground and one side of a resistor with 3.3v on the > other side of the resistor. And then your limit switches would be active > low. I would use solid state relay modules for this though. > Eric Keller > Boalsburg, Pennsylvania > > -- website: http://www.machinekit.io blog: http://blog.machinekit.io github: https://github.com/machinekit --- You received this message because you are subscribed to the Google Groups "Machinekit" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. Visit this group at https://groups.google.com/group/machinekit. For more options, visit https://groups.google.com/d/optout.
