X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=Notebook;h=9ecebc916095b60504e6760618a1ac66c2c71fb9;hb=95ec0e86f0db12a9ea58836e62324ba851257bd4;hp=82cd96a59973becf65f792458cca71a953c62152;hpb=9bfe68963e4c1be20c1249887a6b7a3998e434d1;p=hw%2Ftelemetrum

diff --git a/Notebook b/Notebook
index 82cd96a..9ecebc9 100644
--- a/Notebook
+++ b/Notebook
@@ -193,3 +193,25 @@
   powerful.  Since the PIC has avilable weak pull-ups on the gpio lines, the
   open-drain state outputs from the regulator don't need resistors to be read.
 
+2011.01.17
+- v1.0 and v1.1 boards have a minor error in that the v_lipo sampling resistors
+  are on "the wrong side of the cut" if you try to use a separate pyro battery.
+  The workaround is to cut that trace and put in a jumper, which pretty much
+  requires "return to Bdale for rework".  We should fix this for a future PCB
+  revision.
+
+2011.09.12
+- chatted with Adrian some yesterday.  He likes a Bosch pressure sensor that
+  is DK 828-1005-1-ND .. i2c output, similar range to our current part but
+  smaller, around $5 at our build quantities.
+
+2011.12.10
+- the Johanson balun/filter for 70cm use with cc1111 is DK 712-1540-1-ND
+  uses less PCB area, but lower performance than the discrete approach
+
+2013.01.04
+- noodling over TM v2.0 .. baro sensor will be hard to handle on cc1111.  So,
+  how about 48-pin version of STM32L, cc110L radio, ms5607 and MMA665X accel.
+  Move to the faster lipo charger, too.
+	radio / flash on spi2, sensors on spi1, baro on spi1 alternate pins
+