Sound Activated Switch Circuit with PCB
This is Sound switch circuit,using IC-1458 and SCR-C106D It will work only if the loud is overdue,for player cameras, can apply to a Burglar alarm circuit
1 Comment
May 22, 2017
All controller, motor speed driver,switches,timer,sensor,and more : Timer switches • DC motor speed control • Delay timers • Light switchs • SCR controls • Light dimmers • Infrared remote control system • and more…
Monostable multivibrator using 555 timer
These are many Monostable multivibrator using 555 timer. We use it as timer for control a load, LEDs,driver relay. Which trigger them using a normal switch. [...]
May 22, 2017
Simple Timer circuit using CA3140 + NE555
This be the circuit sets the time to model is simple,at can fix the time had long ago and have tall good accuracy. By use pillar equipment be IC CA3140…
May 20, 2017
10 Key Code Lock Switch Circuit
Simple Key code lock switch circuit using IC-4017 digital, uses 10 switch bottom to control output by Relay. No microcontroller so easier and cheaper!
May 17, 2017
A diode protect CMOS circuit
The CMOS digital circuit used to produce a osicillator, with pulse low frequency frorm. We use R and C are a lot of period time. it must have a diode…
May 13, 2017
Small surge protector using delay system by C1815
Power failure, voltage drop, power surge, but do not worry when has this circuit.
May 11, 2017
