How do quickly learn transistor and LDR circuits? In this post, I am going to show you how to learn quickly. My children want to create a simple automatic night light circuit. It is special. Why? It will be light in the dark. This circuit uses 5 parts only and is cheap. UPDATE: Now my … Read more
This is a digital volume control circuit that Can be applied to the normal volume of a power amplifier. When press switch S1 adds up the volume and press switch S2 to reduce the volume down. There are three circuit ideas for you. 555 Digital volume control IC1 is a 555 CMOS Timer Single IC … Read more
If you want one A lamp flasher circuit using transistors that flashing for general to use. I have many ways, But today you see this three of the lamp flasher circuits.[…] Read more
The digital clock circuit board using LM8365,alarm and relay control, alert 2 times in 24 hour,backup battery power outage. Show dates, months or seconds […] Read more
This is daylight sensor switch circuit, for control load turn on when have sunlight. use simple circuit LDR,transistor,relay and can use with 12V supply […] Read more