12 Volt Dual Power Supply Circuit works like two battery in one. It give two output one is +12V and the other one is -12V and both use same ground. This circuit is very helpful for electronics project like audio amplifier where we need both plus and minus voltage for good sound. It is like […]
Ornamental Flashing LEDs Circuit
This Ornamental Flashing LEDs Circuit makes LEDs blink nice way. It have a tiny timer chip to control ON and OFF blink. We can use blinking LEDs to decorate, art or to attract people. If we can change the speed and the order of LED blink we can get different style and effect. It makes […]
3 Band Audio Equalizer Circuit
This 3 Band Audio Equalizer Circuit work like small knob to control the music. We can change bass with low sound, mid with voice and instruments and treble with high sound to make music how we like. So music can sound better for us by depending on type of music or room we are in. […]
Pressure Sensor Alarm Circuit
This Pressure Sensor Alarm Circuit talks about one electronic device which can feel when pressure goes up or down. Think of a one special plate like doormat, pressure increases when someone steps on it. Or if there is a change in air pressure inside the machine then this device is capable of knowing that. If […]
Simple Light Operated Relay Circuit
Simple Light Operated Relay Circuit work like small auto light switch. It uses special sensor like LDR or photo diode which work like small eye. When light appears sensor gives signal to the circuit and then circuit turn the relay ON or OFF This help for turning outside light at night or start sprinkler type […]
NiMH Battery Charger Circuit
This NiMH Battery Charger Circuit is like special water can for NiMH batteries which are the same batteries inside camera, toy and other devices. Normal charger maybe not be so good for these batteries but this NiMH charger circuit give just right power and make battery work good and last long time. Circuit Working: Parts […]