diff --git a/registry.txt b/registry.txt
index 7fead3ab..b4260160 100644
--- a/registry.txt
+++ b/registry.txt
@@ -5231,3 +5231,4 @@ https://github.com/Tinyu-Zhao/INA3221.git|Contributed|INA3221
 https://github.com/BoschSensortec/Bosch-BME68x-Library.git|Contributed|BME68x Sensor library
 https://github.com/thomasfredericks/MicroOsc.git|Contributed|MicroOsc
 https://github.com/khoih-prog/ATmega_TimerInterrupt.git|Contributed|ATmega_TimerInterrupt
+https://github.com/khoih-prog/ATmega_Slow_PWM.git|Contributed|ATmega_Slow_PWM