From 54c4315c84201e731f6008276858defb560ad61e Mon Sep 17 00:00:00 2001 From: PaulStoffregen Date: Thu, 6 Apr 2023 16:19:08 -0700 Subject: [PATCH] Update readme with SCLK overshoot info --- README.md | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/README.md b/README.md index 354994d..81f2208 100644 --- a/README.md +++ b/README.md @@ -1,4 +1,4 @@ -#Tlc5940 Library# +# Tlc5940 Library 16 channel PWM LED driver based on the Texas Instruments TLC5940 chip. @@ -11,3 +11,9 @@ http://playground.arduino.cc/Learning/TLC5940 https://github.com/PaulStoffregen/Tlc5940 ![Tlc5940 with Teensy 2.0](http://www.pjrc.com/teensy/td_libs_Tlc5940_1.jpg) + +The TLC5940 chip SCK pin is sensitive to signal overshoot. When used with +Teensy 4.0 or other high speed hardware, especially if using long wires, you +may need to add a resistor inline with the SCLK signal. + +https://forum.pjrc.com/threads/71009?p=323766&viewfull=1#post323766