This is Simple light controller circuit that is controlled light-activate. Use inverter gate IC-40106 as main,controlled switches phototransistors as sensor
All controller, motor speed driver,switches,timer,sensor,and more : Timer switches • DC motor speed control • Delay timers • Light switchs • SCR controls • Light dimmers • Infrared remote control system • and more…
You should build the simple temperature detector circuit diagram with a buzzer alarm. It can check a changing of temperature. It is so real easy project.
This is IR receiver circuit or infrared receiver projects you can build easy for Remote control and more circuit [...]
It can be used to replace conventional fuses. Because it's comfortable not need to replace the fuse every time the power too over. This circuit use transistors so simple and low cost.
This is Analog signal selector switch. Do not waste time, choose the input method with interchangeable input cables. But press the input selector switch, as you like. Easy and cost…
This is automatically fan controller for heatsink. when it hot so the fan controlled to high speed. it use LM334z as temperature sensor that is accurate. [...]