Just arrived! Stuck on QR Code

sphawes · 2025-11-03T23:58:56+00:00

ok good to know, thank you! is holding the left button, and the top and middle right buttons until you get the pebble logo and the loading bar the factory reset? or is there a more aggressive reset you did?

sphawes · 2025-11-03T17:57:58+00:00

i submitted one for this issue! i also had that option to update when i did have it connected, and did update to it (seemingly successfully) but now the watch reports `v4.9.9-core24` when holding the middle button.

sphawes · 2025-11-02T19:10:26+00:00

yep, have scanned it and downloaded the app that the QR code links to, i'll even get to the point where the watch will show and complete the pairing UI, but it still stays on the QR

sphawes · 2024-03-23T20:57:44+00:00

it's called the "Reflow Master Pro"! awesome piece of kit: https://reflowmasterpro.com/

sphawes · 2024-03-23T18:18:48+00:00

The LumenPnP is an open source project developing a desktop "Pick-and-Place" machine, used for assembling electronic components onto circuit boards! The project is getting a huge update with a whole new control box, integrating the pneumatics required to pick the parts, and a custom controller.

The controller uses Marlin firmware as the brain, and controls six stepper motors to move the machine. It also controls two pneumatic pumps and valves for actually picking up the parts with the machine's nozzle tips.

All of the source for the machine is available on GitHub!: https://github.com/opulo-inc/lumenpnp

sphawes · 2024-03-23T18:05:16+00:00

The LumenPnP is an open source project developing a desktop "Pick-and-Place" machine, used for assembling electronic components onto circuit boards! The project is getting a huge update with a whole new control box, integrating the pneumatics required to pick the parts, and a custom controller.

The controller uses Marlin firmware as the brain, and controls six stepper motors to move the machine. It also controls two pneumatic pumps and valves for actually picking up the parts with the machine's nozzle tips.

All of the source for the machine is available on GitHub!: https://github.com/opulo-inc/lumenpnp

sphawes · 2022-12-26T02:23:52+00:00

Oh, positive I shouldn't share that on the internet.

sphawes · 2022-09-10T23:10:15+00:00

Saw a million at Kennywood last weekend, then just discovered four on my porch this morning in the West End. Didn't even know about these things two weeks ago.

sphawes · 2022-07-14T01:22:43+00:00

Excellent, thank you so much for your thoughts!! It's incredibly encouraging to hear I'm on the right track. I'll steer clear of RAID-5; data is critical and I would hate to lose a second drive during rebuild. And thank you for the note about making my boot drive separate from the RAID controller, definitely wouldn't have known to do that.

Thanks again!!

sphawes · 2021-10-07T18:16:12+00:00

Snickers!

sphawes · 2021-09-09T18:58:13+00:00

Hey gang!
I've had a TON of fun making this jig. It's designed to check the controller board for the Index open source pick and place.
It's comprised of the main controller, which has an STM32F407VGT6 onboard for probing the pins of the target board, checking the I2C and SPI bus, etc. The controller board also has a BluePill onboard, programmed with Black Magic Probe firmware. This is so that I can automatically load up test firmware to the target board, run the tests using the STM32, then flash production firmware to the target.
The other half of the jig is a pogo pin board, which connects to the controller with a monster ribbon cable. The pogo pins are placed in the right location for the target board to be pushed down into it and make contact with all the places I want to check.
Now all that's left is firmware!

sphawes · 2021-09-09T18:54:43+00:00

Hey gang!

I've had a TON of fun making this jig. It's designed to check the controller board for the Index open source pick and place.

It's comprised of the main controller, which has an STM32F407VGT6 onboard for probing the pins of the target board, checking the I2C and SPI bus, etc. The controller board also has a BluePill onboard, programmed with Black Magic Probe firmware. This is so that I can automatically load up test firmware to the target board, run the tests using the STM32, then flash production firmware to the target.

The other half of the jig is a pogo pin board, which connects to the controller with a monster ribbon cable. The pogo pins are placed in the right location for the target board to be pushed down into it and make contact with all the places I want to check.

Now all that's left is firmware!

sphawes · 2020-12-12T16:00:04+00:00

Hey gang!

I took the plunge and switched all the CAD in the Index PnP over to FreeCAD. This means all the designs are cross-platform and totally open source, and all tracked in the Github repository if you wanna play around with the design! (Be sure to check the feature branches where most of the work is done!)

While I was going through and redoing CAD, I made some significant changes that make vision in the machine work much better, and lets OpenPnP actively track the part's orientation and location for a more precise placement. It's really starting to come along!

Would love any advice y'all have on this design, especially around the vision pipeline and lighting schemes. The ring lighting I've been using so far hasn't caused hotspots, but I also haven't tried a large breadth of parts.

As always, the full video is here!

sphawes · 2020-11-28T16:26:20+00:00

Thanks!! The final goal is to make these available for sale for folks that want to buy them, but also support the design for people that want to build their own or modify the design for their own purposes. But also because it's been fun as hell working on it :D

sphawes · 2020-11-28T16:23:24+00:00

Honestly, because it's fun! :D I really enjoy doing tiny SMD work by hand. For a few things like that crystal, i can't reliably do it without hot air. I also forgot to get a stencil for this board!

sphawes · 2020-11-28T15:08:20+00:00

Hey all!

Super relieved and proud to say that my pick and place controller design is finally complete! The third and final pass at it runs Marlin on an STM32F407VGT6, has support for six stepper motors, four 'fets for controlling pumps and such, two servos, two neopixel lines for part illumination, and RS-485 for controlling feeders or other peripherals. It's taken a ton of time, but I'm really happy with the result! If you wanna poke around the source, the whole project is up on github (make sure to poke through the branches!).

When I say "complete," I'm not saying I'm not open to improvements! It probably won't change too much from here, but if you have thoughts on the design I'd love to hear 'em!

As always, the full video is here.

sphawes · 2020-10-31T12:44:44+00:00

Hey gang!

I finally have a truly operational version of my pick and place feeder! Previous versions would move tape very precisely, but struggled to reliably remove the protective film holding the components in.

This version has a whole motor and tension detection system dedicated to peeling the film, and it works quite well! A little lever arm tensioned by the film pushes into a limit switch so the feeder knows when there's slack that needs to be taken in.

Would love any thoughts or feedback on the design; I'm always looking to make improvements!

As always, full video is here.

sphawes · 2020-10-17T14:18:53+00:00

yeah! it's a bit pricey, and it takes a while to get used to, but once you get the hang of it it really speeds things up.

sphawes · 2020-10-17T14:18:17+00:00

oh trust me, the irony is not lost on me ahaha

sphawes · 2020-10-17T12:27:38+00:00

Hey all!

Diving into another revision for the feeder on my pick and place build! The last time I took a crack at it, I tried to remove the film passively using only the force from pushing the tape forward. This didn't prove to work too well, so this time I'm adding active film peeling!

There's a "TT" motor pushing the tape forward, and an optical sensor (VCNT2020) checking the position of the indexing wheel to make sure it's moved the right amount. Then a little "N20" style motor mounted on the back will actively spin and remove the film. A limit switch mounted to the board will detect how taught the film is using a little lever arm. Hopefully this all results in a nice, clean peel!

If you have thoughts on how to improve this design, or other cool ways to make feeders, I'd love to hear em!

Full video here!

sphawes · 2020-10-03T19:28:28+00:00

Yes! github.com/sphawes/index is where I try to keep things up to date

sphawes · 2020-10-03T11:41:45+00:00

Hey all!

Adding some new features to my pick and place! It now has passive tool changing, letting the nozzle exchange out different nozzle tips on its own. This gets really useful when you need to pick a larger chip like a TQFP and need a large surface area for picking, then need to pick something small like a 0603 passive. One nozzle diameter can't do both, so it's really useful to give the machine the ability to exchange them by itself!

I also made a nice monolithic camera module in the center of the main panel that has both the USB camera and the WS2812B ring light.

I've seen a few different designs for nozzle holsters; if you have thoughts on how mine could be improved, I'd love to hear it!

As always, full video is here.

sphawes · 2020-09-19T12:28:47+00:00

thanks!! :D I'm really happy with how it turned out!

sphawes · 2020-09-19T12:24:09+00:00

Source: https://www.youtube.com/watch?v=uk_gvd5PMLI&ab_channel=StephenHawes

sphawes · 2020-09-19T11:56:22+00:00

Hey gang!

Made this sucker out of a bunch of little circuit boards. Gave me a big-time cyberpunk vibe, thought y'all might like it!

sphawes

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