Electronics Projects Archive

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

PIC12F675 Police Siren Circuit Real Sound

Siren circuit is built on the PIC12F675 microcontroller, and the outputs of the PIC12F675 are powered by a 6-transistor bridge amplifier. Considering that the resistance of the siren is 2..

Dark and Motion Activated LED Lamp HC-SR501 LDR Triac Relay Mosfet

I will give information about how the HC-SR501 PIR motion sensor module works, HC-SR501 Features and its use with LDR. The HC-SR501 PIR sensor module can be used not only..

Eeprom Copier Circuit

Eeprom Copier Project with LCD display, made with PIC16F648A microcontroller, provides rapid copying of serial EEPROM memories of series 24 (with I2C protocol) without a computer. The eeprom copier can..

Effect Led Stars PCB

ATtiny13 Led Stars There are source PCB drawings, Source and hex code files, Proteus simulation files. Added transistors to increase the number of LEDs. There are three printing options in..

High Quality Amplifier Circuit LM3886

The dimensions of the PCB board are 80×80 mm. Each board is equipped with its own protection device that disconnects the load in emergency situation (appearance of constant voltage at..

LM3915 80 LED Audio Spectrum Analyzer Circuit

LM3915 The connection stands and falls with analog amplification and filtering of audio signals using operational amplifiers. The audio signal is first amplified and impedance separated by connection with the..

Laboratory Power Supply 30V 10A (Adjustable)

Actually, I implemented the power supply circuit with limited possibilities, but it is sufficient for me, the first tests were done successfully. Since I have a toroidal transformer with an..

CarProg Clone Programmer Schematic Firmware

First and foremost of all is to change if the problem continues, 74HC125D to 74HCT125M in your carparog. I attach 2 versions, the first one worked for me, the second..

Animated Heart Circuit RGB Led

The RGB Led version of the Led Heart Circuit Music Box I shared earlier, the RGB LED version of the RGB Led Effect circuit, the PIC12F629 RGB mood light section..

Microphone Vu Meter Circuit Strip Led

The microphone vu meter circuit was normally a classic design with 10, I just rearranged it as a single channel strip led vu meter by using the microphone preamp stage..