This Solar Powered Animal Scarer Circuit is small and simple to give a try for. It uses solar panel to take power from sun. At night or at low light the battery gives power. Circuit make sound or light to scare animal like dog, cat, monkey or birds. So they do not come near farm, […]
Full Duplex Audio Line Circuit
Full Duplex Audio Line Circuit is like a strong talking line. Two people can talk at a same time on one wire like a phone call. Not like a walkie talkie where only one person talk and other wait. But with full duplex both people talk anytime like a actual talking. Circuit Working: Parts List: […]
Heatsink Temperature Protection Circuit
Think heatsink like small radiator for our devices which help keep cool. Heatsink Temperature Protection Circuit is like safety man for that small radiator. It got small sensor by always checking heatsink heat. If too hot like one have got fever then this circuit does something. It maybe a stop power or maybe like start […]
Simple Static Electricity Detector Circuit
Simple Static Electricity Detector Circuit is like alarm for electricity when gathers on things like clothes. This happen when we rub things together. This kind of electricity can break small electronics so detector is useful near them. Detector have special sensor which feels electric change in air. Maybe its wire stick out or maybe flat […]
DC Voltage Doubler Circuit
DC Voltage Doubler Circuit is like small power booster. It takes normal battery power and make almost double. It use smart parts like diodes and capacitors and they work like tiny switch and small electric bucket. Sometimes many also use transistor or tiny chip to help. Imagine electric flow from battery like small stream. This […]
Thermometer Circuit
Thermometer Circuit is like a small detective for heat. It has got special sensor which smells temperature and then show on the screen like digital thermometer. These circuits come in many shape and size for the use in different way to feel temperature. But no matter which one all of them will indicate which one […]





