This fan speed controller works by sensing the temperature of the engine and is accordingly used for the triggering. As the temperature increases so does the speed of the fan motor and vice versa. Circuit Operation Operation of the proposed temperature controlled fan may be understood as follows: The speed of the DC motor alters […]
Triggered
Cellphone Display Light Triggered Remote Control Circuit
In this post I have explained a cell phone remote control circuit using the light from its display. The idea was requested by Dondon. Technical Specifications I need a circuit similar to the circuit above but I will use the LED of mobile phone as light source so I can turn ON and OFF the […]
Cellphone RF Triggered Car Amplifier Auto-Mute Circuit
The following article presents a circuit design which would mute your car amplifier music the moment it detects a cellphone call inside the car, enabling an automatic muting during the situations, and saving the user from the manual hassles. A loud music could be a nuisance while a phone call is being attended or dialed. […]
Cell Phone Triggered Night Lamp Circuit
Feeling difficult to grope for a light switch in deep sleep when someone calls you at night? Then may be this cellphone triggered RF night lamp circuit can solve your problem….This is a very simple basic circuit and is easy to construct compared to other online available circuits which switches on a relay when it […]
Rain Triggered Instant Start Windshield Wiper Timer Circuit
The following circuit was requested by one of the readers of this blog Mr. Keval. The actual request was for a rain triggered windshield wiper circuit, but the idea here has been further enhanced with a quick start feature for better efficiency. How Conventional Wiper Systems Work Normally, electronic wiper control circuit involve a bistable for switching the […]