The TouchTone555 generates sound using an NE555 timer IC which is configured as an astable multivibrator. Each key forms part of a series resistor network, which controls the oscillator’s frequency ...

This paper presents a method for design and implementation of a bidirectional infrared wireless data transmission system with half-duplex communication mode based on AT89S52 MCU. The system is mainly ...

A sawtooth wave generator using the NE555 timer is presented here. The prototype tested in EFY lab is shown in Fig. 1. Fig. 1: EFY lab’s prototype on breadboard Fig. 2 shows the circuit diagram of the ...

This paper presents the design, simulation, and implementation of a solid state Tesla coil (SSTC) with music playback functionality through its arcs. It showcases various circuit designs that explore ...

Explore how to create a timer-based automatic light circuit using the versatile NE555 IC in monostable mode. This step-by-step DIY electronics project includes components, wiring instructions, and ...

Typical superconducting quantum circuits, such as qubits—basic processing units of a quantum computer, must be operated at very low temperatures, of a few 10s of millikelvin, or hundredths of a ...

Some design choices on manufacturing equipment really leave you scratching your head for a while, as recently happened to [Chris Cecil] when the belt on a reflow oven’s conveyer snapped. Alth… ...

Hans Camenzind designed the NE555 in the two or so years before its release in 1972 by Signetics. In Jack Ward’s An Interview with Hans Camenzind [10], he tells of the trials of getting the design ...

A Little Background The start of the 1970s was an exciting time for physicists and engineers in the fledgling semiconductor industry. The planar process had been invented, allowing complex circuits to ...