Category Archives: Fun Circuits



Sound Effects Generator (8 different sound) based IC HT2884

This is the circuit diagram of sound effects generator. All sounds in this circuit are generated by HT2884. The HT2884 is a CMOS LSI chip equipped with tone circuit, noise circuit, and other control logic to generate various sounds to be used in sound effects production. This IC features: single power supply (2.4V ? 3.3V),… Read More »

Insect Repellent

This insect repellent circuit will repel insects such as mosquitoes, flies and cockroaches from your home or yard effectively. circuit uses a specific frequency to disrupt the insect so the insect will go away from this circuit. This insect repellent circuit can be placed inside or outside the home (for speakers). If you want to… Read More »



ne555, simple walkie talkie circuit diagram pdf, electronic horn circuit diagram, 220v light dimmer circuit diagram, dancing led with music circuit, digital clock circuit diagram pdf, Ne 555, www circuitdiagram com, electronic hooter circuit diagram, quiz buzzer circuit using 555 timer

Page 2 of 812345...Last »