This board is the Adafruit Infrared Tranceiver breakout, which can transmit and receiver 940nm remote control data in one handy ... For the emitter half, we use the same schematic and setup as our ...

The project uses 940nm infrared (IR) LEDs embedded in clothes to overwhelm photo diodes in IR-sensitive cameras used for surveillance. Since the wavelength of the lights are not visible to humans ...

Notes: The 280nm LED has a forward voltage drop of between 5V and 7.5V depending on the voltage bin. This is higher that I expected when I designed the circuit, and it will not work if the power ...