Simple 1.5V LED Torch circuit
The 1.5v led flashlight circuit which also use single AA 1.5V battery. But few parts. Such as we use one transistor only. And all other parts of 5 pcs only [...]
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August 21, 2017
Include: LED running lights • LED flashers
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Mini emergency light circuits
This is first mini emergency light of my son. It is very small, use LED display when power outage,use transistor instead relay use AA battery charger.
August 16, 2017
Add Beautiful Car brake light circuit using BC327
We will add beauty to CAR brake light circuit. With a display of 14 LEDs, visible clearly, for safety and beautiful. The installation format can fix by oneself as you like it.
July 13, 2017
Bike tail LED light flashing
When we use the bicycle(normal bike) at night. we used IC1 IC555 Oscillator signal is output to a lot LED super bright.
July 12, 2017
Christmas Tree Lights Flasher with 7812+LM380
This is Circuit Christmas Tree Lights Flasher with 7812 for supply regulator and IC LM380 for Signal generator dirve relay on-off the lamp two set. detail other see circuit. The…
May 20, 2017
Simple LED music light circuit
This is a simple LED music light circuit. Music can change the LED light level gamut. Operation of this circuit is a circuit OP-AMP IC1-LM318-Single High-Speed Operational Amplifier / 1-IC1…
May 19, 2017
5 Light sensor alarm circuits
These are four light sensor alarm circuits, when be become dark, or Light sensitive switch.Use part is important light sensor LDR light dependent resistor [...]
May 18, 2017