From 1c0f2c1c941ddc93cf2d182502f1a4437baa7848 Mon Sep 17 00:00:00 2001 From: isthatme Date: Sat, 7 Oct 2017 17:49:12 -0600 Subject: [PATCH] Added a README to the 16-channel board Don't use the 16 Channel board until the next commit, it has some serious issues --- 16Channel-LED-Driver/16Channel-LED-Driver.pro | 4 ++-- 3Channel-LED-Driver-NoSensing/README.md | 14 ++++++++++++++ 2 files changed, 16 insertions(+), 2 deletions(-) create mode 100644 3Channel-LED-Driver-NoSensing/README.md diff --git a/16Channel-LED-Driver/16Channel-LED-Driver.pro b/16Channel-LED-Driver/16Channel-LED-Driver.pro index 654391e..ceb4c65 100644 --- a/16Channel-LED-Driver/16Channel-LED-Driver.pro +++ b/16Channel-LED-Driver/16Channel-LED-Driver.pro @@ -1,4 +1,4 @@ -update=Fri 27 Jan 2017 12:51:16 PM MST +update=2017-10-07 4:52:44 PM version=1 last_client=kicad [pcbnew] @@ -59,4 +59,4 @@ LibName27=atmel LibName28=contrib LibName29=valves LibName30=BC817DS/bc817DS -LibName31=/home/isthatme/kicad-projects/Custom-Parts/pca9634 +LibName31=C:/Users/David/Documents/kicad-projects/Custom-Parts/pca9634 diff --git a/3Channel-LED-Driver-NoSensing/README.md b/3Channel-LED-Driver-NoSensing/README.md new file mode 100644 index 0000000..16d4944 --- /dev/null +++ b/3Channel-LED-Driver-NoSensing/README.md @@ -0,0 +1,14 @@ +# 16 Channel LED Driver Board # + +## Intro ## + +This is a 16 Channel LED Driver board. Each channel has current limiting (set by the potentiometre/resistor combo by each opamp) and is PWM dimmable. It uses two PCA9634s to do the dimming. Sometime soon I'll come up with a full BOM. + +## Decisions ## + +I used two PCA9634s and four LM324s just to simplify the routing because initially I figured a two layer board would be simpler to design for personally. + +## Errata ## + +- Consider Rev A and Rev B unusable versions of this board. +- Rev C has an issue where if you turn the potentiometre all the way it will fry the opamp, trying to fix that with Rev D, which as of this commit is not started. \ No newline at end of file