Pepper Digital/Analog breakout?

Jjonbenderr · Feb 8, 2023

Hello all!

Just finished building my Pepper and am already working on some things. Looking forward to sharing projects with everyone.

I was actually curious if anyone has ever built a breakout board of sorts for easier access to the digital/analog in selections that are typically made with the jumpers?

It seems like it should be relatively simple, but being that I am pretty new to diy electronics, I'm thinking there is probably something I am missing. Is it possible to wire the jumper pins/circuits of a channel to one single switch?

Thanks!

giuliomoro · Feb 8, 2023

jonbenderr . Is it possible to wire the jumper pins/circuits of a channel to one single switch?

no, you would need a multi-pole switch which are bulky and expensive. Perhaps the best option is to add a 2U panel on the side with 4 more jacks which you can wire up to the "unused setting" (i.e.: digital or analog) on the main board.

DDragonSF · Mar 20, 2023

I added 4 3-pol switches on a panel, so I can either use inputs 4-7 either as analog or digital. HW cost about $5. If there is interest, I can provide schematics and FP design.

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for the switches look here: https://www.aliexpress.com/item/32997352828.html?spm=a2g0o.productlist.main.1.3deb2572y9aKdC&algo_pvid=a37ea803-f34b-4915-aa9b-cf1faf7032e6&algo_exp_id=a37ea803-f34b-4915-aa9b-cf1faf7032e6-0&pdp_ext_f=%7B%22sku_id%22%3A%2266904907609%22%7D&pdp_npi=3%40dis%21USD%211.23%210.98%21%21%21%21%21%40211bf3f716793101480235955d06c0%2166904907609%21sea%21JP%21197758275&curPageLogUid=NrnATAk05Zr0

giuliomoro · Mar 20, 2023

nice final results, lots of wires there though ... why did you need so many?

DDragonSF · Mar 20, 2023

Because of the pepper design to switch from Analog to digital. You have 6-pin jumpers for each channel, where 5 need to be connected. (BTW: if you had swapped pin 1 and 2 for J17 on the PCB, it would only be necessary to use 1 5pin jack instead of 2 jacks (4-pin and 2-pin, because 1 wire is redundant).
I agree, I could have spared 6 wires and connect all the other switches to the first one, but this would have resulted in more effort (6 more solder points). And I think my wiring is cleaner (regarding maintenance).