Jackpot3 Change gpio.25 to output

Binky1135 · February 25, 2026, 10:52pm

I read on the Jackpot3 documentation on v1e that GPIOs 25, 33 & 32 can be changed from inputs to ouputs. Is this correct and has anyone done it? I need a low trigger signal to a relay that will turn on my vacuum. Since GPIOs 12, 15, 13, and 15 are either covered or used by my RS845 module, I need a different GPIO and from what I can tell there aren’t anymore unless 25, 33 or 32 can be changed to an output.

I plan to move my X endstop wire to GPIO 39 and reassign it to X endstop. Then I plan to reassign Coolant > Mist to GPIO.25 and trigger it using M7 & M9 commands.

Thanks

Jackpot3 CNC Controller - V1 Engineering Documentation

Jonathjon · February 25, 2026, 10:59pm

No need to move the X endstop. There are 4 outputs on the side already that can be used. Either 5v or 24v. GPIO 2, 0, 27 & 26

Binky1135 · February 25, 2026, 11:02pm

I wondered if they were switchable but now I know. Thank god haha. Thank you.

Jonathjon · February 25, 2026, 11:03pm

You’re very welcome!