From ae02df3f098ef571d46f4108e41c78868e9ad7ce Mon Sep 17 00:00:00 2001 From: Bdale Garbee Date: Mon, 5 May 2025 11:22:30 -0600 Subject: [PATCH] more connector notes --- Notebook | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) diff --git a/Notebook b/Notebook index 3a55902..34e5ebf 100644 --- a/Notebook +++ b/Notebook @@ -400,3 +400,44 @@ two boards apart and use a ribbon cable with connectors to hook them together, *or* you leave off those two connectors to mount it as a single circuit board? + +- How about 3 pin Neutrik for pressure sensor, 4 pin for load cell, 5 + pin for strand burner? Design a board that has 3/3/4/5 connectors, + only use the middle two with one ribbon cable to the main board for + stock QM, populate all 4 and an additional ribbon cable to daughter + card for QM with strand burner daughter card? + + For the main board, the signals needed are + excite + + excite - + load + + load - + 5V + pressure + gnd + + For the daughter card, the signals needed are + 5V + pressure + gnd + pyro + + burn wire 1 + burn wire 2 + burn wire 3 + +- if we want to do something smaller than an SLA, there are 3S LiPo + charger/BMS boards for cheap via Amazon and Aliexpress that have + USB C power input that you hook 3 batteries to. They do balanced + charging of the 3 cells. I can imagine making a footprint to + solder one with some through-hole jumpers to a board that also + has 3 of our LiPo connectors on it. Just plug in 3 900mAh cells, + or even 3 of the 2Ah cells? + +2025.05.02 +- shopping for PCB mount XLR connectors + 3 pin Neutrik NC3MAAH-1 Mouser $1.07 q1 + Neutrik NC3MAAH Mouser $1.09 q1 + Amphenol AC3MAH-AU-PRE Mouser $1.08 q10 + 4 pin Neutrik NC4MAH Mouser $4.10 q10 + 5 pin Amphenol AC5MAH-AU-B Mouser $3.51 q10 (I have some of these) + -- 2.47.2