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Alpha PCB Delivered

A project log for Modernize Harmony 880

Modernize a Logitech Harmony 880 universal remote

mulcmumulcmu 07/09/2022 at 14:390 Comments

Alpha revision of the PCB was placed on order 7/4 at 8:42p.  Order was delivered 7/8 at 5:15p.  A little less than 4 whole days for production and shipment!  This was 22nd PCB order I’ve placed with JLCPCB and had the most complex board outline by far.  The PCB fit in the case pretty well, the only fitment issue was along the sides of the screen where the button pads were real close to the board outline.  I intentionally traced it a bit bigger in this region for clearance to the button pads.  There are a few plastic ribs inside the case that are real tight but should fit nicely with some hand filing/sanding.  The narrow little notches on the sides had me concerned, but these didn’t seem to slow JLCPCB down at all.  The copper layer around the reverse mount LED holes appears to have been shrunk down a bit for clearance to the hole but otherwise the boards look just like the KiCad renderings. The mounting pad for the mini USB connector went right to the board edge.  I was going to remove the connectors from the stock PCB to test on the alpha board.  The case has some ribs around the battery holder region that are going to interfere with the reverse mount LEDs.  Final design might need to shift position of these LEDs or require a bit of modification to the case.  Once the parts on the back of the PCB are populated, I’ll try to transfer the tape layer with the button domes to the alpha board.  All the pads line up with the EL tape cutouts I removed but manually getting 53 4mm domes in place and secured seems like a pretty fiddly process.

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