Electronics Projects Archive

Electronic plans news for electronic hobbyist or engineers. Free electronic schematics (circuits) electronic blog site. Electronic content post and more..

PIC16F628 LC meter circuit

You can use the LC meter circuit to measure the coil and capacitor values made with the PIC16F628 microcontroller. High precision Digital LC Meter A handy do-it-yourself test equipment –..

Balance Controlled Microphone Preamplifier Circuit (+3 Band Equaliser)

The circuit is fed with 9 volt batteries based on 2 tl072 op-amps. If desired, it can be used with a 15 volt DC Adapter on the DC rectification and..

Water Tank Level Indicator Circuit with LM3914

We usually see the LM3914 integrated in vu-meter circuits. In this application, it is not different. In addition to the control layer designed to monitor the water tank level with..

Subwoofer Control Circuit

A multi-purpose control circuit Low pass, High pass, Filter stages between 30..200khz Parametric equalizer stage There are frequency, level, boost controls, and there is also an electronic switch circuit that..

Simple Cheap PIC and dsPIC Programmer Circuit

The programming circuit can program PIC30F series dspic and other classic pic microcontrollers. The software used is Win Pic Programmer computer connection, supply voltage max. 16 volts dc via serial..

Power Amplifier with Output Headphone Connection

Headphones are not connected to the amplifier audio outputs, loud sound damages the headphones. A two-channel circuit designed to connect headphones to the high outputs, in addition to the circuit..

PIC16F84A Programmable Dual Timer Circuit

In the timer circuit, there are buzzer and audible warning section and relay outputs for control after timing. The supply voltage is 12 volts dc. It is fed through the..

PIC16F88 12V SLA Battery Charger Circuit

Microcontroller used in the circuit pic16f88 description circuit diagram, asm hex codes pcb file. It can provide 10 amperes of charging current. It can be used to charge 60A batteries,..

Remote Controlled Security System with PIC16F628 PIC16F88

Ideal for keyless entry for doors in the car, home and industry, this Keyless Entry System includes a rolling code to provide high security. It also has two door knock..

45-Seconds Voice Recording Circuit with HK828

Voice Recording Circuit HK828 and LM358 based on the supply voltage 9-14 volt DC Microphone with 45 seconds voice recording can be done recording the sound level rises to the..