Electronics Projects Archive

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

Solar Powered 12V Backup System Solar Charge Controller

The 40 watt panel with solar energy system has been used for years and has never caused any problems. A simple circuit made with LM393 integrated circuit is used for..

AT PC Power Supply Circuit Schematics

AT power supply circuit diagrams for AT computer systems. Very old structure ATX system was soon removed from the market after its release but archive is also available. Lunar 200..

TL494 DC CDI Ignition Circuit AT-ATX Transformer

For most people interested in capacitor discharge ignition, the repeatability of DC-CDI is difficult and they have little experience with winding transformers. This design uses an AT-ATX PC power supply..

Arcade Joystick Circuit 0 Delay

Arcade Joystick is a DIY USB keyboard encoder made with PIC18F24K50 microcontroller. It allows you to create a USB arcade stick for example or use it in a special MAME..

Audio Echo, Repeat Effect Circuit PT2399

PT2399 circuit Heavy filtering allows for useful delay times and typical analog-like sound. The delay line starts just after 100n (after J112 JFET transistor). This capacitor is just a coupling..

Arduino Nano Three Channel Thermostat

Arduino Three channel thermostat circuit uses 3 digital temperature sensors DS18B20 for measurement, an encoder module and an LCD2004 LCD with I2C module as an indicator. Arduino Nano Three channel..

Hardware Auto Mouse Click

A circuit that makes mouse clicks at random times with ATmega8 microcontroller instead of programs known as Mouse Clicker or Automatic mouse click. To make it look like a real..

IR2110 IR2153 Ultrasonic Welding Machine Circuit

I don’t know about ultrasonic welding for plastic, but there are projects that can be useful for those who are interested. The appropriate ultrasonic with sufficient power in the application..

Cordless Drill Engraving Machine Conversion

With mechanical modification and LM324 mosfet motor driver circuit, the battery has expired and the switch has been broken and the rechargeable drill has been converted into an engraving machine…

1800W 36VDC Electric Bike Motor Driver Circuit TL494

The motor driver circuit controlled by TL494 PWM IC is 36V 864W and its maximum over-power is 1800W. Lithium-ion (Li-ion) batteries are used for the power supply. Ten cells are..