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Update readme with SCLK overshoot info

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PaulStoffregen
2023-04-06 16:19:08 -07:00
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README.md
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@@ -1,4 +1,4 @@
#Tlc5940 Library# # Tlc5940 Library
16 channel PWM LED driver based on the Texas Instruments TLC5940 chip. 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 https://github.com/PaulStoffregen/Tlc5940
![Tlc5940 with Teensy 2.0](http://www.pjrc.com/teensy/td_libs_Tlc5940_1.jpg) ![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