This is the circuit diagram of electronic dice which built based microcontroller chip of Atmel AT89C2051. The application of this…
This is a simple and easy built electronic candle circuit which build using TTL (transistor-transistor logic) that are 74LS164, 74LS86…
The above simple circuit design can be utilized as an accurate stopwatch to count up to 100 seconds with a…
This ding-dong door bell circuit might become the simplest and cost-effective door bell circuit. The circuit is designed based on…
This is the schematic diagram of Infrared (IR) cordless headphone. Maybe it also can be called "wireless headphone", but it…
This easy to built circuit produces a warning beep when somebody crosses a secure area in your home or place…
Here the simple traffic light controller which is could be used to educate kids rudiments of traffic light guidelines. The…
This is the door bell circuit with flashing LEDs to make the circuit more attractive. IC1 (NE555) is applied right…
Here the circuit diagram of musical bell with touch switch and timer. This circuit is designed around CMOS IC CD4011…
This is the design diagram of electronic jam. This jam circuit can be implemented in quiz contests in which any…