Miscellaneous IR schematics

Build your own IR detector to master remote control signals and gain complete control over your entertainment. This simple circuit, using a photo-diode and LED, instantly tests remote signals, revealing malfunctions and ensuring you’re always in command.... [read more]

Build a robust infrared beam break detector with a 38kHz transmitter and receiver, utilizing a 78L05 regulator and six AA batteries for reliable operation and extended range.... [read more]

Create a long-range musical transmitter and receiver circuit capable of transmitting audio up to 10 meters, utilizing a UM66 melody generator and ICs for maximum sound projection and volume control.... [read more]

Build a powerful audio system by silencing unwanted channel switching noise from your tube television with this innovative circuit. This easy-to-implement design utilizes an IR receiver and comparator to interrupt audio output, eliminating popping and crackling sounds. Perfect for enthusiasts seeking a cleaner, more immersive listening experience.... [read more]

Build a powerful infrared remote control tester with the TSOP1738 receiver. This easy-to-construct circuit, featuring a 5-meter range, provides clear signal detection through a piezo buzzer. Unlock the potential of your remote controls and create a responsive system for your projects.... [read more]

Build your own precise liquid level and proximity detection circuits with this innovative design! Featuring a 50cm detection range and optional relay control, this circuit empowers you to create sophisticated sensing solutions. Unlock the potential of infra-red technology and build your own reliable device.... [read more]