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Published 20 hours ago • verified publisher icon geerlingguy

Positron CM4 Touchscreen & WiFi head unit

Open nomadsgalaxy opened this issue 1 year ago • 2 comments
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Designed for the Positron V3.2, this CM4 head unit includes a spot for a CM4 Chip, has built in Wi-fi, a micro SD Card slot, and a USB C port.

ldo-35-controller-touchscreen-for-positron-v32-3d-printer-1

ldo-35-controller-touchscreen-for-positron-v32-3d-printer-2

nomadsgalaxy avatar Sep 13 '24 16:09 nomadsgalaxy

It looks like it's a cheaper alternative to something like the Raspberry Pad 5 from BigTreeTech.

It'd be cool if people designed some cases/adapters for popular 3D printers (besides just the Positron, which uses a little fold-out stand and has the Pi sitting near the printer).

geerlingguy avatar Sep 13 '24 17:09 geerlingguy

I plan on making it work with The Rook printer, but yeah, it's essentially the same but with less IO

nomadsgalaxy avatar Sep 13 '24 17:09 nomadsgalaxy

I’ve ordered one of these to use with my Ender 3 and Octoprint. Unfortunately, I could only find it with shipping from the States -> UK. Will report back once I’ve tried it out. I’ll need to find someone with a CM4 IO board I can borrow, to flash the eMMC.

emilcarr avatar Aug 05 '25 20:08 emilcarr

So the display panel itself is from waveshare: https://www.waveshare.com/product/3.5inch-dpi-lcd.htm

The USB-C port is missing CC resistors, so can only be powered by a USB A-C cable.

emilcarr avatar Aug 15 '25 22:08 emilcarr