X-Git-Url: https://git.gag.com/?a=blobdiff_plain;ds=sidebyside;f=Notebook;h=6565442d822508112922db9b7a5fad775888bdde;hb=71fb80ef60e23f48408edd56c7d733b81eeab0fe;hp=8a0457c85933af76bd4966952b2d3d8dba922686;hpb=b82c2f79aa0e2fc17cd0d0a692459c206463b92b;p=hw%2Ftelemetrum

diff --git a/Notebook b/Notebook
index 8a0457c..6565442 100644
--- a/Notebook
+++ b/Notebook
@@ -67,10 +67,22 @@
 - can I put the GPS chip antenna on the board *and* allow for an SMA or other
   connector if we want it off-board?
 
+- changing the memory part from the SOIJ8 to the DFN8 would save about 2mm
+  in width, but that doesn't really help.
+- changing the 5V switcher from S8 to MS8 takes us from 5 tall to 3 tall, but
+  costs $0.30 more per piece and isn't stocked by Digikey.  Not worth it?
+
+- noticed the NXP SC18IS600, which is an SPI slave to I2C master interface
+  with a few GPIO lines...  mate that with an HMC5843, which is a 3-axis
+  magnetic sensor, and we might have another interesting companion board for TM
+
+
 
 - To Do List
 
 	- add serial connector back to schematic as optionally loaded part
 	- move USB connector on PCB layout 80 mils in from board edge
-	- create PCB footprints for the GPS module and GPS antenna
+		- move yellow LED and passives closer to LiPo connector
+	+ create PCB footprint for the GPS module 
+	+ create PCB footprint for the GPS antenna