Simple Level Voltage Detector Circuit Using LM741
We will be talking about the simple voltage level detector circuit. Its main purpose is to detect if the voltage rises above a certain point. Read more
Measurement
Simple Water Alarm Circuit Diagram
It worked by sounding an alarm when the water level rose to the set level. So we can close the water valve in time and prevent an overflow. Read more
Simple Signal injector circuits using transistors
This is simple signal injector circuit, used two transistors join together as astable multivibrator, signal output frequency 1,000Hz in square wave form.[…] Read more
DIY Simple Motion Sensor Alarm Circuit Diagram Using PIR Sensor
You have a private area, right? If you have this motion detector alarm circuit. It will reduce your worries. Imagine a big bear is coming to the behind of your house. Then, the siren alert. The big bear is shocked and runs away. You and your family are safe. Is it great? Read more
Ghost Detector Static Charge Monitor by Lennie
This is a Ghost Detector circuit or Static Charge Monitor circuit by Lennie. The Label was printed on card stock; clear coated with light coats of spray enamel; cut, and attached down a tomato paste can. This article was copied from Lennie Zink’s article. Apichet GaraipoomSelf-taught and driven by curiosity since childhood. I … Read more