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I made this Arduino project that allows to turn ON and OFF LEDs using a cheap IR remote control as a preparation for the next big step: disassemble my girlfriend’s chinese LED lamp and replace its ...

Three red LEDs (LED1 through LED3) provide visual indication, driven by transistor T1. T1’s base is connected to pin D4 of the Arduino Nano via resistor R1. Audio indication is provided by a 230V AC ...

This water sculpture can stop drops of water in mid-air. This is accomplished by flashing LEDs to illuminate the droplets at just the right time. But it’s not limited to blinky lights alone. … ...