Heyo! I’ve developed and now tested this nifty board that lets you attach an external power button to a Framework mobo, as well as exposes a USB 2.0 port and backlight/fingerprint/capslock LED connections. I sell these, and you can also order the PCBs and assemble one yourself, just needs a kapton tape fix before reflow. Hope this can help!
This is great to see. In a future version it could be interesting to have a footprint for an RGW LED and tact switch directly on the board as a replacement for the power button, or alternately a connector for the Framework Laptop Fingerprint Module. The interface for the Fingerprint Module is:
Uses Kyocera 046809610110846+.
|5||EC_CONTROL||Output - mask switch events|
|6||SWITCH||Open collector output|
Oh thank you, this is a pleasant surprise - we’ve been looking into REing this connector just a few days ago!
This info and project is super useful! being able to use the non-USB-C connectors for their original purpose really expands what you can do with the mobo on it’s own!
This is great! Ordered.
Any idea on if youll be selling any more of these?
Restocked them! Thank you for the reminder, forgot I had an assembled batch I needed to punch into Tindie’s interface.
Would it be possible to get the battery level as well? I was thinking something similar to how the old macs if you press the side button will show green LED’s that represent the current battery level.
Looking back at it,
Is there any particular reason why this is not made as a piece of FPC?
It’s just a surface-mount-connector to a bunch of pads/pins
Granted, FPCs don’t have a track record of being anywhere reliable, but so is flimsy wires soldered to a PCB.
There’s no benefit to having this board as an FPC, and a lot of drawbacks. For instance, unplugging the shim from the Mainboard could tear the FPC. That said, you can already take the shim PCB files from GitHub and order them as an FPC from OSHPark, if you so desire!
As for wire flimsiness - you choose the wires that you solder to the shim and the way you fasten them, you can replace the wires at any time, and so far, the shims themselves have held up pretty well. In particular, having wire contact points as through-holes is a feature added to reinforce the wire contact points. even if it makes it harder for me to solder these shims.
All in all, regular wires will hold up pretty well in majority of situations with these PCBs - the shims and the wires attached aren’t meant to be moved often, after all. If they were, I’d be designing them in a different way - there’s pretty foolproof ways to attach wires to a PCB, but those would result in the shims becoming unnecessarily large otherwise. If you need more resillience to the point you never risk a wire breaking off, add hot glue and tape to your liking!
I could add a bit of extra optional hardware, but then you’d need to modify the EC firmware a tiny bit Which, you absolutely could, given it’s open-source and everything!
yeah I figured.
The one reason I said “FPC” is because my Dell XPS L321X have this
And I thought "hey this is a really great low-profile- way to extend a bunch of pins to somewhere else that’s actually needed.
This is inferior to FPC connectors (the flap-down ones) on the PCB; this is evident in the fact that this ribbon cable broke once; this is a replacement. But also, consider how many times I have taken this apart, I think it’s a great solution. But, as you can see, there are black plastic backings strengthening the area close to the connector, and I have no idea how that works.
Price out how much a custom FPC like that would cost in small quantities, even without the stiffener plate. Companies like Dell can get deals due to the absolutely huge volumes they do.
Is there any chance there will be a restock soon? This looks absolutely perfect for what I am looking to do.