3 leds and a TSOP4838 IR receiver module. You must check the datasheet before use the IR module to see which pins connect to the power supply and which one delivers the output voltage. I used an ...

Similarly, pin notation for the infrared receiver module is OUT(D2)-GND ... fadeValue); delay(30); } } The following Arduino Sketch tests the four-digit, seven-segment LED display. Needless to say, ...

[Computergeek] made an Arduino Shield in order to use it as an ... he should probably have invited a resistor to the party the two IR LEDs are having.

It doesn't sound fun but it is! It turns out that the standard 8x8 LED matrix is not so easy to use because of all the wiring required and all the Arduino pins that are used - hence there aren't a lot ...