From e14cdacc589aae6ba9808c30e741d5a143cb9d34 Mon Sep 17 00:00:00 2001 From: Bdale Garbee Date: Tue, 16 Sep 2025 12:29:44 -0600 Subject: [PATCH] note about needing an ADC to read battery voltage, update metadata for proto --- Notebook | 4 ++++ teleterra.sch | 6 +++++- 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/Notebook b/Notebook index cf4651a..8f7cb54 100644 --- a/Notebook +++ b/Notebook @@ -29,3 +29,7 @@ thickness. A piece of the 3mm tape would probably work as well or better than standoffs and screws, for a lot less money. +2025.09.16 +- just realized we have no way to read the battery voltage. is it worth + adding a cheap I2C ADC that already has a Linux driver to do so? The + TI ADC081C family looks like a reasonable choice with existing IIO driver. diff --git a/teleterra.sch b/teleterra.sch index 674c991..57480c7 100644 --- a/teleterra.sch +++ b/teleterra.sch @@ -238,7 +238,7 @@ device=CONNECTOR T 49800 47800 5 10 0 0 0 0 1 footprint=pizero-tt T 49800 47800 5 10 0 1 0 0 1 -value=female +value=male T 50400 56500 5 10 1 1 0 0 1 refdes=J2 } @@ -1591,6 +1591,10 @@ T 65500 63300 5 10 0 0 0 0 1 footprint=100mil2pin T 65500 63300 5 10 0 0 0 0 1 loadstatus=noload +T 65500 63300 5 10 0 1 0 0 1 +device=CONNECTOR +T 65500 63300 5 10 0 1 0 0 1 +value=Header-2 } N 65900 63800 65500 63800 4 C 65400 63100 1 0 0 gnd.sym -- 2.47.3