XBuddy board GPIO? - Hardware, firmware and software help

RE: XBuddy board GPIO?

Fil4ment — Wed, 14 Aug 2024 01:32:54 +0000

In case anyone didn't see, our requests have been granted!

Mk4S upgrade has an optional $15 "hackerboard" here. Firmware notes says that *input* from the hackerboard to the printer is not yet supported, but should be in the next release. We're almost there.

RE: XBuddy board GPIO?

Me — Fri, 10 May 2024 18:07:11 +0000

ok, i'm just happy it's here!

RE: XBuddy board GPIO?

Fil4ment — Fri, 10 May 2024 17:55:13 +0000

I don't know the process. I'm BETTING that we have to wait for the next update, or download the current "daily" firmware.

RE: XBuddy board GPIO?

Me — Fri, 10 May 2024 17:03:34 +0000

wait, is this in the main firmware now that its merged into the main firmware? or do i have to wait for 6.0.1 or something?

RE: XBuddy board GPIO?

Fil4ment — Fri, 10 May 2024 16:55:32 +0000

Alright. Interesting update:

Looks like GPIO analog input/output is not going to happen. That said, thanks to Rbuehlma on github, we have something possibly close enough. There is now access to the I2C connector (J23, below the usb-c connector), and Gcode to send/receive through it. M260 and M261, although the reprap.org page hasn't been updated, yet. J23 is connected to I2C bus 2 (PF0, PF1 = SDA, SCL)

I am a long way from my printer, and will be for a few months more, but if anyone wants to try their luck with this, I would love to hear how it turns out!

RE: XBuddy board GPIO?

Oregonerd — Tue, 19 Mar 2024 01:55:46 +0000

Appologies

RE: XBuddy board GPIO?

Fil4ment — Tue, 19 Mar 2024 01:04:41 +0000

waaaay off topic, at this point, guys. Really should start your own thread for rewiring a mini.

RE: XBuddy board GPIO?

Oregonerd — Tue, 19 Mar 2024 00:54:02 +0000

My switch isn't working. I suspect it is because the MCU pin for the sense circuit isn't being pulled low. My switch just cut the circuit off.

RE: XBuddy board GPIO?

Oregonerd — Mon, 18 Mar 2024 23:55:01 +0000

On the Mini filament sensor opto

White = signal

Black = GND

Red = 5+

I read 3.8 volts when filament is present and .25 volts when it's not. Adding a switch in series should work fine...

However, color me surprised. I added a micro switch in series with the white wire. Activating the micro switch, opening the signal circuit, while printing does nothing. The mini continues printing... I can see the little filament icon (bottom left) change to N/A when I activate the switch, but the mini keeps on printing. Why? Does this mean the mini will keep trying to print when it runs out of filament? The filament sensor is only checked while loading or beginning a print but not after it's printing?

RE: XBuddy board GPIO?

Me — Mon, 18 Mar 2024 22:11:30 +0000

from this, the states seem to be:

low / GND / 0v = no filament present; high / Vcc / 5v = filament present

you could probably add a micro switch that disconnects the sensor from the buddy board (to avoid frying the sensor's mosfet), and instead connects the buddy's signal line to GND