Professional RF jammer with RF VCO and power RF amplifier

This project contains a Spice model for the popular NE555 timer IC, which is widely used in electronic circuits for generating accurate time delays or oscillations.

⌛ Control a relay connected device for a period of 1 to 100 seconds using a 555

🚗 LM555 generates a car/bike/bicycle/scooter horn sound which is amplified by LM386

Implemented a smart glasses project for the visually impaired, using advanced IoT technologies without Arduino. The system offers real-time feedback and navigation assistance, with comprehensive documentation and code available. Aimed at enhancing accessibility and independence.

MCU-less analog biomimetic bat flapping-wing robot with segmented wing driving

🎹 An electronic piano that uses the 555 to generate eight different piano notes.

NE555 timer explain

ne555 drawn with Eagle

NE555 timer was launched in 1971 and has a history of 50 years. It is easy to use, stable and cheap, so it is still widely used, and its output in 2003 was 1 billion. Now I use NE555 to make timers. Most of the control parts of electronic door locks use this circuit. The timing method is very simple, 1.1 x RC, which is not very accurate compared…

When people go on vacations or are not present at home for a long period of time, they forget to water their plants. This project is an excellent solution for such problems, so plants can be watered automatically, without any human interference.

A laser-based intruder alarm circuit that triggers the buzzer and LED when the laser beam is interrupted.

Solenoid pulser for 12V JF-0530B

The simplest LED running light circuit based on the NE555 timer and CD4017 decade counter

NodeMCU I2C capacitive Water Level Sensor

Several circuit examples supporting the LCD displays (HITACHI HD44780 modules: 1) LCD1602A, v3, 2) LCD1602A, v3, with the PCF8574A chip providing I2C input and 3) LCD2004A, v1.3, with the PCF8574A chip providing I2C input) and OLED displays (JMD 0.91A and JMD 0.96A-2). Projects require SDCC to compile.

Luminous Touch Toy made with NE555 IC & a piezo-electric sensor, with auto-off functionality.

Running Light soldering/3d-printing project for beginners

A high efficiency inverter that converts 12V DC into 220V AC using an NE555 timer, push pull MOSFET switching and a step up transformer. Designed and simulated in Proteus, then built and tested as hardware for the Electronic Devices and Circuits CEP at Bahria University.