X-Git-Url: https://git.gag.com/?a=blobdiff_plain;ds=sidebyside;f=Notebook;h=f5bb8093455efe9d9589411529d589bbc7c3e9d6;hb=refs%2Fheads%2Fmaster;hp=a83143555991d982404efe84794e02eb74dfa8c6;hpb=a5105e7dee5d94113026aa246bf3b3a5b54ba71d;p=hw%2Ftelelco

diff --git a/Notebook b/Notebook
index a831435..f231919 100644
--- a/Notebook
+++ b/Notebook
@@ -11,7 +11,23 @@ connect all of them to pin 4, the gpio driving the circuit.
 
 The net effect is that we're making 12V from the gpio, which means all the LED
 current and switcher inefficiency is coming as current through that gpio.  The
-measured LED current is around 7mA, so this is "safe" for the SOC, but really
-not a great plan... 
+measured LED current is around 7mA, so this is "safe" for the SOC, but leaves
+less engineering margin than we usually like.
+
+Changing the circuit to be powered from v_lipo with the gpio hooked to shdn*
+and controlling a FET switch on the output might be smarter someday?
+
+2024.02.17
+- Keith thinks we should move (back?) to USB mini B for TeleLCO, and suggests
+  we deliver:
+	https://www.mouser.com/ProductDetail/172-PX0446
+	https://www.mouser.com/ProductDetail/172-PX0441-2M00
+	https://www.mouser.com/ProductDetail/157-PX0484
+
+  After looking at pricing, etc, I decided not to make that change.
+
+2024.06.10
+- beam.is has better 1170 orange pricing than Amazon, and without foam.  
+  $44.95 per vs 56.77 per.  sent a quote request for 25 pieces through their 
+  "wholesale" quote request thingy.
 
-Need to redesign this in the future to use a transistor/FET switch.