230 VAC Timer
https://www.electronics-lab.com/230-vac-timer/
Classic AC 230 V Timer project can be used in all application requiring a timer of up-to 3 Minutes to operate or control any AC mains load of up-to 200 Watts. This project is based on the Classic 555 Timer IC, triggering a TRIAC. Input and Output is Optically Isolated. Specifications Supply input 12 VDC […]
Headlight Modulator for Motorcycle
https://www.electronics-lab.com/headlight-modulator-for-motorcycle/
William Dudley @ dudley.nu has designed a motorcycle headlight modulator based on 555 timer IC and photoresistor. A headlight modulator will make the headlight to pulse during the day and be steady at night. He writes: Unhappy with a headlight modulator I purchased, I decided to make my own. Even though it would be a trivial […]
Warning LED Flash Light
https://www.electronics-lab.com/warning-led-flash-light/
LED Flasher is a simple project producing a flashing effect of six LED’s. This project can be used in all areas where you want to draw attention. Hi-glow LED’s providing enough flashing light to attract your attention. Can be used as warning light. Specifications Supply input 12 V @ 35 mA (6 to 15V Dc […]
Disco Lights with IC555
https://www.electronics-lab.com/disco-lights-with-ic555/
This is a simple 555 timer IC circuit that is able to power two strings of LEDs alternative. Disco lights are mostly used in decoration made with colourful LEDs. For begginners, this is a compact circuit using a single chip IC. IC555 is connected here to form a multivibrator. The blinking speed can be easily […]
Pulse Generator 555
https://www.electronics-lab.com/pulse-generator-555/
Pulse Generator project will generate a frequency in up to 180 KHz which can form a good test gear project. This project is based on the classic 555 timer IC. Specifications Input : 5-12 VDC Max @ 40 mA Provides Square Waves Range : Jumper selectable and preset tunable range of 1 Hz to 180 […]
NE555 timer sparks low-cost voltage-to-frequency converter
https://www.electronics-lab.com/ne555-timer-sparks-low-cost-voltage-to-frequency-converter/
by Gyula Dioszegi @ edn.com: In 1971, Signetics—later Philips—introduced the NE555 timer, and manufacturers are still producing more than 1 billion of them a year. By adding a few components to the NE555, you can build a simple voltage-to-frequency converter for less than 50 cents. The circuit contains a Miller integrator based on a TL071 along […]
Capacitance Meter
https://www.electronics-lab.com/capacitance-meter/
by ThomasVDD @ instructables.com: Capacitors are vital components in electronics, but sometimes they are broken, or the value printed on the cap has become unreadable. Because my multi-meter does not have a capacitance measurement, I decided to make one! The principle of measuring capacitance is quite simple. The voltage of a capacitor charging through a resistor […]