Three bounceless switch circuit using digital IC
The simple bounceless switch circuit. It is one kind of electronic switches, high quality, and low noise. They are suitable for the digital circuits. Why? Read more
555 Timer
5 circuits of 555 Alarm sound and tone generator
This is Simple 555 Alarm sound circuit, for beginner as buzzer sound. IC1 is pulse generator, to transistor PNP for boost current to speakers. Read more
Simple capacitance measurement circuit using IC-555
Simple capacitance measurement circuit using IC-555, with the frequency counter as digit number display, that can measure the period.To show value directly […] Read more
IC 555 LED Flasher
Dual LED Flasher circuit. It use IC-555 timer IC as the basic astable multi vibrator circuit. Read more
5 Sound effect generator circuit with PCB
If we want to be a producer, This circuit would be a good starting point to composed music for 1000 tracks. With these Sound effect generator circuits may help you. Using basic parts and cheap makes you easy to build or try it. There are five circuits. You may make the animal sound by electronics … Read more