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Bdale Garbee [Fri, 5 Dec 2008 01:27:58 +0000 (18:27 -0700)]
switch 5V regulator to LTC part, use 33mA of its capacity to charge e-match cap
Bdale Garbee [Thu, 4 Dec 2008 23:43:38 +0000 (16:43 -0700)]
resequence ADC inputs to put highest rep rates on lowest numbered inputs
Bdale Garbee [Thu, 4 Dec 2008 21:05:16 +0000 (14:05 -0700)]
re-arrange pins to route both e-match sense lines to ADC inputs
Bdale Garbee [Thu, 4 Dec 2008 17:13:29 +0000 (10:13 -0700)]
changes in schematic inspired by PSAS design review. pull-downs on firing
lines, connecting self-test pin on the accelerometer, tweaking voltage
dividers to make better use of ADC 3.3V input range, etc
Bdale Garbee [Sun, 30 Nov 2008 14:39:28 +0000 (07:39 -0700)]
the MN5010HS needs more current than we can provide regulated, but can take
3.25 to 5.5 volts, so feed it directly from our LiPo battery
Bdale Garbee [Sat, 29 Nov 2008 22:21:38 +0000 (15:21 -0700)]
change serial port to a 4-pin connector with 3.3VDC on fourth pin, to allow
possible integration of SparkFun MN5010HS GPS board
Bdale Garbee [Tue, 18 Nov 2008 05:54:49 +0000 (22:54 -0700)]
snapshot before removing 18g accelerometer
Bdale Garbee [Tue, 18 Nov 2008 01:40:39 +0000 (18:40 -0700)]
adding 50g accelerometer circuit back in
Bdale Garbee [Tue, 18 Nov 2008 01:02:38 +0000 (18:02 -0700)]
snapshot before insertion
Bdale Garbee [Mon, 10 Nov 2008 05:05:02 +0000 (21:05 -0800)]
DigiKey part numbers for everything, some footprints still bogus
Bdale Garbee [Sun, 9 Nov 2008 04:28:52 +0000 (20:28 -0800)]
functionally complete, perhaps? messy designators, etc, still to resolve
Bdale Garbee [Sat, 8 Nov 2008 05:05:41 +0000 (21:05 -0800)]
cpu section more or less complete
Bdale Garbee [Sat, 8 Nov 2008 04:33:51 +0000 (20:33 -0800)]
initial snapshot after moving out of openalt directory