I had also heard in the news that the European Union had made it mandatory for new vehicles to have flashing brake lights, although it was said to be for “sudden braking”, but this system has been used in many cars for many years. @Bilgin.055 had shared a similar circuit in the electronic projects forum;…
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 battery charging and solar charge regulator. The battery used in solar energy system is called deep cycle or leisure battery. It can handle over-discharging compared…
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 AT Power Supply Schematic Moretec MP200 AT Power Supply Schematic PW9502 AT Power Supply Schematic SKS4230 AT Power Supply Schematic TYET005V0 AT Power Supply Schematic…
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 transformer for voltage conversion. There is no need to wind the transformer. The necessary transformer can be obtained from old-style PC power supplies. TL494 or…
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 cabinet. It has easy, cheap and simple hardware to build yourself. Features of Arcade Joystick Circuit One additional input for autofire button. The speed of…
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 capacitor to block DC, JFET acts as a switch to allow or not allow audio to pass. If you cut the PCB board by a…
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 thermostat circuit control is simple, settings are made using the encoder button. The first, second and third lines of the LCD2004 screen (with I2C module)…
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 mouse click of a person. Clicks were made randomly from 800 ms to 1200 ms (delay between clicks) and 150 ms to 350 ms (click…
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 is 60W at 68kHz, disassembled from an ultrasonic cleaner. A lower frequency is more suitable. PVC welding The ultrasonic transducer behaves approximately like a series…
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. There is a two-stage planetary gear box between the motor and the holder section, reducing the speed by 12 times. An arrangement has been made…