Meters and Testers

Simple Micro Ampere Meter Circuit is like a special tool to measure small electric. Normal tools too are strong but are not good for tiny current. But this one uses super sensitive meter microammeter or maybe special setting on multimeter to find very small electric flow like millionth of amp. Other parts like resistors and […]

This Simple Electronic Component Tester Circuit works like doctor for ones electronic parts. Before we make any cool thing one can use this tester to check parts like resistor, capacitor, transistor and many more. Tester shows if the parts are good or bad so we do not waste time with broken parts in our project. […]

Simple Wireless RF Network Cable Tester Circuit is like X-ray for internet wire. It can catch radio signal inside cable like ethernet, modem or satellite TV but there is no need to touch the wire. It is very easy to use for checking cable working or not. Just hold tester near the wire and it […]

Simple Temperature Meter Circuit is like small detective for heat. It use special sensor like thermocouple or thermistor to feel heat near it. Sensor can be small part or smart chip like LM35 or LM34 which change heat into electric signal. Then circuit take this signal and confirms how much hot or cold it is. […]

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 […]

TV remote tester is small tool like A doctor for ones remote. It uses one infrared sensor like eye for light which we cannot see and to check if remote give signal when one presses the button. If signal arrives small light turns ON or buzzer make beep sound which means remote is working good. […]