LED Fading Effect / LED Strobe using 555

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https://www.electronics-lab.com/project/led-fading-effect-led-strobe/

In general, generating an LED fade effect requires a microcontroller or another expensive circuit. We have built this low-cost LED fading board using an inexpensive 555 Timer. The 555 timer is used as an astable multivibrator, which generates low-frequency pulses, further, this pulse train is feed to the base of BJT transistor TIP122 with a […]

Unipolar 4-Phase Stepper Motor Controller

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https://www.electronics-lab.com/project/unipolar-4-phase-stepper-motor-controller/

    This project is a 4-phase unipolar stepper motor controller. Description Unipolar 4-Phase Stepper Motor Controller Board will help you control a Stepper Motor or 4 individual Solenoids. This circuit consisting of transistors that serve as current amplifier and also diode to prevent damaging back EMF, circuit uses Darlington transistors to provide high current […]