Light meter

An intriguing lighting solution for bicycles, utilizing LEDs. It features low power consumption and includes a circuit diagram for an electronics project, operating at 9V, utilizing the NE555 timer. The bicycle lighting circuit employs a NE555 timer IC configured in...

The principle is that the resistance of metals increases at higher temperatures, and a heated wire suspended in a gas will lose heat by conduction and convection in proportion to the number of gas molecules present; thus, the heat...

The amplifier utilizes a grounded grid circuit featuring either the Eimac 3CX1000A7 or 8877 ceramic/metal triodes designed for linear operation within the HF and VHF frequency ranges. It delivers a legal power output of 1500 watts PEP and continuous...

Up to six lights can be sequentially flashed using this circuit. LED1 through LED6 can be replaced by optocouplers (MOC3010, etc.) to control 120-Vac loads via triacs. Ul generates pulses that clock the shift register mode of the six...

Below is a comparator circuit that can measure the voltage of a car battery in steps of 1 volt. The voltage indication is achieved through comparison. The comparator circuit designed for measuring the voltage of a car battery utilizes an...

This is a highly accurate LC meter based on the PIC 16F628A microcontroller. Inspired by an unexpectedly precise LC meter, this design aims to provide users with a reliable instrument for measuring inductance (L) and capacitance (C) in a...