Simple Phone Remote Control Circuit Diagram

How Does Phone Remote Control Circuit Diagram Work? This circuit is a teleremote on/off device switch. This circuit can be connected up to 9 devices.¬†The ‘0’ button on the telephone is the phone function selector. IC1 is used as an DTMF converter¬†to BCD,...

Simple Mosquito Repellent Circuit Diagram

How Does Mosquito Repellent Circuit Diagram Work? This circuit uses IC CD4047 to control the buzzer time using resistors and capacitors. When the voltage pass through the transistor, buzzer will alarm. Mosquito Repellent Schematic Diagram Here is the circuit : Simple...