X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=Notebook;h=808d57b366a5da8069c232501732a5a5fed825cc;hb=25a59e415769ce08e571ab66cc48b876262ff481;hp=96d03c82a1f8f167dc76b0854639cbc0c690a4d5;hpb=ca70acaf3e49fdbe952c63f8ce987ca8457c1f1c;p=hw%2Fteleterra

diff --git a/Notebook b/Notebook
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@@ -3,3 +3,45 @@
 
 2009.06.01
 - keithp wants a compass ... HMC5843
+
+2010.10.30
+- v0.1 boards arrived
+
+  issues:
+  	- holes for the LCD leads are too small
+		- for prototypes, workaround is remove pins from LCD module
+		  and use wire-wrap wire to connect the 14 leads
+
+	- footprint for U17 (audio amp) is too wide .. need narrower SOIC 8
+		- for prototypes, existing footprint will work with careful
+		  placement of the part and/or hand soldering after reflow
+
+2010.10.31
+- loaded and reflowed two boards
+
+	- some silkscreen work is in order .. U1/U2 refdes could be better
+	  positioned .. spots on IC's marking pin 1 should be outside chip
+
+	- tqfp footprint for tiny48 seems "largeish" .. not fatally, but 
+	  leaves me questioning a bit
+
+	- kapton paste mask worked, but was harder to use than stainless
+
+2010.11.22
+- notes from initial turn on before I forget
+
+	- the footprint for the AVR ICSP connector is mirror-imaged!
+
+	- it's easy to crowbar the 3.3V rail by over-driving the audio amp.
+	  can we run it from unregulated lipo instead?  Would be nice to do
+	  that, then crank up the gain.
+
+2011.03.14
+- if we move off speaker to an earphone jack, perhaps DK CP-3523SJCT-ND ?
+
+2011.05.05
+- be nice if the cheaper version could fit in Mouser 546-1591XXATBU, which is
+  the translucent blue Hammond 1591XXATBU
+
+- the new 2x16 displays Keith plans to test might all best be installed using
+  double sided foam tape, like DK 3M4008-ND, which is 1/8" thick and 1" wide.