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Keith Packard [Mon, 2 Dec 2013 07:25:31 +0000 (23:25 -0800)]
Replace LDO output cap with 4.7uF
The TPS76133 requires at least 4.7uF of output capacitance to be
stable, and some noise was seen in the baro sensor with the 2.2uF
value.
Signed-off-by: Keith Packard <keithp@keithp.com>
Keith Packard [Mon, 2 Dec 2013 07:25:00 +0000 (23:25 -0800)]
Reduce ballast cap from 47uF to 22uF
The 47uF cap was enormous and expensive; 22uF is plenty for TeleMini
and EasyMini
Signed-off-by: Keith Packard <keithp@keithp.com>
Keith Packard [Mon, 2 Dec 2013 07:24:05 +0000 (23:24 -0800)]
Generate keithp-style muffin labels
These have the refdes listed for keithp-style board loading
Signed-off-by: Keith Packard <keithp@keithp.com>
Keith Packard [Mon, 2 Dec 2013 04:45:50 +0000 (20:45 -0800)]
Switch LDO to TI TPS76133
Lower drop-out voltage than the MIC5205.
Doesn't use a bypass cap either, so remove C5
Signed-off-by: Keith Packard <keithp@keithp.com>
Keith Packard [Mon, 2 Dec 2013 03:26:16 +0000 (19:26 -0800)]
Add pdf and partslist targets
Signed-off-by: Keith Packard <keithp@keithp.com>
Keith Packard [Mon, 2 Dec 2013 03:25:52 +0000 (19:25 -0800)]
Resize and reposition refdes
Makes them readable in a printout
Signed-off-by: Keith Packard <keithp@keithp.com>
Keith Packard [Mon, 2 Dec 2013 03:24:58 +0000 (19:24 -0800)]
Update a couple of caps to new DK values. Relabel things a bit
DK murata cap numbers changed
Changed 'device' to be 'IC' instead of part number for baro and flash
Signed-off-by: Keith Packard <keithp@keithp.com>
Keith Packard [Mon, 26 Aug 2013 01:58:39 +0000 (18:58 -0700)]
Resistors: current-limit -> 1k. Pyro -> 8.06k/9.09k
Switch LED current limit values to 1k.
Change pyro circuit to 8.06k/9.09k to hit desired cut-off voltage.
Signed-off-by: Keith Packard <keithp@keithp.com>
Bdale Garbee [Fri, 9 Aug 2013 19:28:32 +0000 (15:28 -0400)]
add a serial number block to the silk
Keith Packard [Wed, 7 Aug 2013 15:18:04 +0000 (17:18 +0200)]
Change comparator dividers to hit 3.52V v_ldo_in before shutting down igniter
Signed-off-by: Keith Packard <keithp@keithp.com>
Keith Packard [Wed, 7 Aug 2013 13:55:49 +0000 (15:55 +0200)]
Switch to panasonic resistors. Switch LED current limit to 1k.
Signed-off-by: Keith Packard <keithp@keithp.com>
Bdale Garbee [Wed, 22 May 2013 15:37:32 +0000 (09:37 -0600)]
change FET gate series resistors to 1k
Bdale Garbee [Tue, 30 Apr 2013 23:23:12 +0000 (17:23 -0600)]
update Makefile to best practices
Bdale Garbee [Thu, 28 Mar 2013 03:50:41 +0000 (23:50 -0400)]
clean up all the oshpark mess
Bdale Garbee [Thu, 28 Mar 2013 03:50:04 +0000 (23:50 -0400)]
add mfg targets to makefile
Bdale Garbee [Thu, 28 Mar 2013 03:23:02 +0000 (23:23 -0400)]
using shared packages data now
Bdale Garbee [Thu, 28 Mar 2013 03:19:07 +0000 (23:19 -0400)]
set version to 1.1
Bdale Garbee [Wed, 27 Mar 2013 03:24:15 +0000 (23:24 -0400)]
add surface floods for good RF launch
Bdale Garbee [Tue, 26 Mar 2013 22:12:10 +0000 (18:12 -0400)]
improve silk
Bdale Garbee [Tue, 26 Mar 2013 22:10:47 +0000 (18:10 -0400)]
f'ing selection that won't go away
Bdale Garbee [Tue, 26 Mar 2013 22:06:27 +0000 (18:06 -0400)]
route complete, drc clean
Bdale Garbee [Sat, 23 Mar 2013 22:18:48 +0000 (16:18 -0600)]
lots more done
Bdale Garbee [Sat, 23 Mar 2013 18:08:21 +0000 (12:08 -0600)]
making progress on placement .. lots still to do, though
Bdale Garbee [Sat, 23 Mar 2013 04:52:45 +0000 (22:52 -0600)]
first stab at an EasyMetrum + TeleMini hybrid for TeleMini v2
Bdale Garbee [Sun, 20 Jan 2013 20:59:04 +0000 (13:59 -0700)]
move to common scheme directory, for real this time
Bdale Garbee [Sun, 20 Jan 2013 20:57:57 +0000 (13:57 -0700)]
Merge branch 'master' into next
Bdale Garbee [Sun, 20 Jan 2013 20:57:15 +0000 (13:57 -0700)]
replace SMA with new footprint
Bdale Garbee [Sun, 20 Jan 2013 20:51:48 +0000 (13:51 -0700)]
move to local packages/ directory .. note that this doesn't update pcb files
Bdale Garbee [Sun, 20 Jan 2013 20:43:30 +0000 (13:43 -0700)]
update copyright to 2013
Bdale Garbee [Sun, 20 Jan 2013 14:31:34 +0000 (07:31 -0700)]
move to common scheme directory
Bdale Garbee [Tue, 11 Dec 2012 17:09:19 +0000 (10:09 -0700)]
move to partslistgag
Bdale Garbee [Wed, 5 Dec 2012 05:04:00 +0000 (22:04 -0700)]
work in progress
Bdale Garbee [Sat, 24 Nov 2012 21:26:03 +0000 (14:26 -0700)]
switch to local symbols, update schematic to use MS5607, add flash memory
Bdale Garbee [Sat, 24 Nov 2012 21:02:29 +0000 (14:02 -0700)]
elide analog baro sensor
Bdale Garbee [Mon, 15 Oct 2012 14:52:21 +0000 (08:52 -0600)]
move to 3.3k pull-downs on igniter circuits
Bdale Garbee [Tue, 7 Jun 2011 15:53:26 +0000 (09:53 -0600)]
explicitly do not include frontsilk in the zip file .. the refdes info is not
particularly useful and is completely illegible on this board
Bdale Garbee [Mon, 6 Jun 2011 02:09:26 +0000 (20:09 -0600)]
update version to 1.0 in anticipation of sending out for production quotes
add 'pwr' to silkscreen adjacent to power switch wire holes
Bdale Garbee [Fri, 13 May 2011 21:11:37 +0000 (15:11 -0600)]
add apogee / main labels to silk screen
Bdale Garbee [Tue, 26 Apr 2011 03:16:08 +0000 (21:16 -0600)]
fix attributes on power switch footprint
Bdale Garbee [Tue, 26 Apr 2011 03:03:52 +0000 (21:03 -0600)]
mark mounting holes as noload
Bdale Garbee [Thu, 21 Apr 2011 22:47:29 +0000 (16:47 -0600)]
add silkscreen rectangle for serial number
Bdale Garbee [Thu, 21 Apr 2011 22:42:17 +0000 (16:42 -0600)]
add 100uF ballast cap on 3.3V rail, update silkscreen version and copyright
Bdale Garbee [Tue, 19 Apr 2011 07:47:33 +0000 (01:47 -0600)]
update digikey part number of debug footprint mating header
Bdale Garbee [Tue, 19 Apr 2011 07:45:14 +0000 (01:45 -0600)]
change debug connector to 50 mil pitch
Bdale Garbee [Tue, 15 Mar 2011 13:37:02 +0000 (14:37 +0100)]
more copper shoving to add a "guard trace" at ground between the oscillator
body and the RF filters
Bdale Garbee [Tue, 15 Mar 2011 13:13:21 +0000 (14:13 +0100)]
move oscillator as far west as possible to try and reduce crosstalk with TX
Bdale Garbee [Tue, 23 Nov 2010 06:28:28 +0000 (23:28 -0700)]
hide top silk again
Bdale Garbee [Tue, 23 Nov 2010 06:18:17 +0000 (23:18 -0700)]
make sure all silk elements are within board outline
Bdale Garbee [Tue, 23 Nov 2010 05:51:17 +0000 (22:51 -0700)]
add outline layer, center ground plane polygon
Bdale Garbee [Thu, 18 Nov 2010 23:19:31 +0000 (16:19 -0700)]
lose C9 as redundant on this tight layout
Bdale Garbee [Thu, 18 Nov 2010 23:00:18 +0000 (16:00 -0700)]
update to reflect footprint name change
Bdale Garbee [Thu, 11 Nov 2010 10:25:49 +0000 (03:25 -0700)]
add targets for automating outputs
Bdale Garbee [Thu, 11 Nov 2010 08:38:37 +0000 (01:38 -0700)]
add attributes
Bdale Garbee [Thu, 11 Nov 2010 08:27:12 +0000 (01:27 -0700)]
more copper shoving to reduce impedance in the pyro firing circuit
Bdale Garbee [Thu, 11 Nov 2010 07:59:17 +0000 (00:59 -0700)]
component move to improve bypass capacitor placement relative to regulator
Bdale Garbee [Thu, 11 Nov 2010 00:21:53 +0000 (17:21 -0700)]
fix reset circuit component values to match TeleMetrum v0.1, and shove a lot
of copper around making things a bit less chaotic and leaving the ground
plane more intact
Bdale Garbee [Wed, 10 Nov 2010 18:13:44 +0000 (11:13 -0700)]
no remaining DRC errors
Bdale Garbee [Tue, 9 Nov 2010 05:16:45 +0000 (22:16 -0700)]
route complete, 16 DRC errors
Bdale Garbee [Mon, 8 Nov 2010 20:11:37 +0000 (13:11 -0700)]
This is a TeleNano but with dual deployment .. calling it TeleMini since it
falls between TeleNano and TeleMetrum... ;-)
Bdale Garbee [Mon, 8 Nov 2010 19:46:09 +0000 (12:46 -0700)]
change project name to TeleMini
Bdale Garbee [Mon, 8 Nov 2010 04:57:11 +0000 (21:57 -0700)]
lose junk file accidentally included
Bdale Garbee [Mon, 8 Nov 2010 04:56:48 +0000 (21:56 -0700)]
initial design import