Open Hardware Summit 2020 badge

@Kevin Walseth at Digi-Key has gotten us all the electronic components that we need.

But we also need:

• Watch bands (probably 22mm NATO)
• Mechanical parts to assemble the top and bottom board (a sandwich with the battery in the middle)

Watch Bands:

I ordered this from Amazon for Michael:

CIVO NATO Strap 4/8 Packs - 16mm 18mm 20mm 22mm 24mm Premium Ballistic Nylon Watch Bands Zulu Style with Stainless Steel Buckle

It is a 4 pack of 22mm NATO bands for $13.99. That is $3.50 each.  This seems not be a good value.  We need to source 300.

Standoffs:

@Michael Welling found these 7mm standoffs on Amazon but quite expensive

(1000 pcs) M3-0.5 X 7mm, Hex Female Standoffs, Metric, 4.5mm Across Flats, Aluminum

That is 1,000 pieces for $160.  $0.16 each.  We need 4x 300 so 1,200.

Also, we not certain what standoff is best.  We are making a "sandwich" with top PCB, LiPo battery and bottom PCB:

Adafruit "Ask an Engineer" last night featured the Open Hardware Summit wrist badge which will run CircuitPython on a nRF52840:

Want one for your wrist?  Buy tickets for OHS on March 13th in NYC!

@Michael Welling  and Nate at SparkFun received the PCBs and stencils yesterday.  @Alex Camilo should receive today. The parts from Kevin at DigiKey should arrive today at SparkFun, Michael and Kevin.

Here is Michael wearing the PCB with 22mm NATO wrist band from Amazon:

Featured on Hackaday:

CircuitPython Slithers Into 100th Board — the OHS 2020 Badge

Thanks @Michael Welling for creating the pull requests.

Prototype status:

Michael, Alex and SparkFun should be receive by the end of this week:

PCBs from OSH Park, Stencils from OSH Stencils, parts from DigiKey.

@Michael Welling got page added for the badge:

• Add support for OHS2020 Badge #103: https://github.com/adafruit/Adafruit_nRF52_Bootloader/pull/103
• Ohs2020 badge page #377: https://github.com/adafruit/circuitpython-org/pull/377
• Ohs2020 badge initial support #2528 https://github.com/adafruit/circuitpython/pull/2528

Now on the Circuit Python website:

https://circuitpython.org/board/ohs2020_badge/

This project has been registered as certified Open Source Hardware:

https://certification.oshwa.org/us000214.html

@Michael Welling  and @Alex Camilo  have been updating the schematic and layout based on the design review:

https://github.com/oshwabadge2020/Badge-PCB/issues/15

Here is the current render from KiCad:

Thanks to @Anool Mahidharia for adding the LCD and ribbon cable!

Thanks so much to @Michael Welling for finishing routing the badge.

Michael used 2 layers for the initial prototypes so we can fab them faster.  There are only 8 weeks left until the Open Hardware Summit on March 13th.

https://github.com/oshwabadge2020/Badge-PCB/pull/14

For those without KiCad:

Gerbers:

https://github.com/oshwabadge2020/Badge-PCB/tree/master/gerbers

Schematic PDF:

https://github.com/oshwabadge2020/Badge-PCB/tree/master/schematic.pdf

OSH Park renders:

Here is PDF of layer preview from OSH Park:

https://hackaday.io/project/168483-open-hardware-summit-2020-badge/files

ZIP of the layer renders:

https://cdn.hackaday.io/files/1684837208376672/OSH%20Park%20_%20Verify%20your%20design.zip

OSH Park shared project has hi res top and bottom render:

https://oshpark.com/shared_projects/DU7vUFIe

Thanks to @Anool Mahidharia for getting more 3-D models into the KiCad design:

https://github.com/oshwabadge2020/Badge-PCB/pull/12

https://github.com/oshwabadge2020/Badge-PCB/pull/13

Here is the current render:

@Michael Welling is continuing to work on the layout:

https://github.com/mwelling/Badge-PCB/commit/0c97acd4cb632d7c1c18045bbfa1b6cb3fd3e37d