He then programmed an ATtiny13 to decode messages received by the IR sensor, sending them to his laptop via USB. He packaged things inside a tiny mint tin, which he hangs from a desk lamp while in ...

Posted in Microcontrollers Tagged attiny13, infrared, ir, phototransistor, proximity sensor, reflectance, reflective sensor ← Computer Control For Your Xbox Controller DCPU-16 Running Pac-Man → ...

The working principle is simple. Pressing the push button PB1, which corresponds to the IR sensor detecting an animal, charges capacitor C up to VCC through R1 with a short time constant. Releasing ...

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 ...