Old infrared remote controls can be a great way to interface with your projects. One of [AnalysIR’s] latest blog posts goes over the simplest way to create an Arduino based IR receiver, makin… ...

Infra-red (IR) remotes are great, unless you’re in a hackerspace that’s full of crazy blinking lights and random IR emissions of all kinds. Then, they’re just unreliable. Some sma… ...

The circuit in Figure 1 forms a highpass filter with the output impedance of the serial port and the capacitor. The positive pulses drive one IR LED; the negative pulses drive the other. Both should ...