Thus, the infrared emitter transmits bursts of 38kHz infrared signal modulated at 1kHz. The series resistor R1 sets the operating current (and hence the brightness level ... code (Arduino Uno/Nano ...

The files in this repository accompanied an Adafruit Learning System tutorial and were moved to https://github.com/adafruit/Adafruit_Learning_System_Guides/tree ...

This sketch uses a MERG kit 50 block detector to sense the presence of a locomotive on the stretch of track with the level crossing on it. Once it is triggered the bells will sound and the 4 leds will ...