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  • Scientists freeze quantum motion using ultrafast laser trick
    Harvard and PSI scientists have managed to freeze normally fleeting quantum states in time, creating a pathway to control them using pure electronic tricks and laser precision.
  • Researchers develop recyclable, healable electronics
    Electronics often get thrown away after use because recycling them requires extensive work for little payoff. Researchers have now found a way to change the game.
  • Ultra-thin lenses that make infrared light visible
    Physicists have developed a lens with 'magic' properties. Ultra-thin, it can transform infrared light into visible light by halving the wavelength of incident light.
  • Engineers develop self-healing muscle for robots
    Students recently unveiled their invention of a robotic actuator -- the 'muscle' that converts energy into a robot's physical movement -- that has the ability to detect punctures or pressure, heal the injury and repair its damage-detecting 'skin.'
  • Listening to electrons talk
    Researchers present new experimental and theoretical results for the bound electron g-factor in lithium-like tin which has a much higher nuclear charge than any previous measurement. The experimental accuracy reached a level of 0.5 parts per billion. Using an enhanced interelectronic QED method, the theoretical prediction for the g-factor reached a precision of 6 parts […]
  • Waste to foundation: Transforming construction waste into high-performance material
    In a major advancement for sustainable construction, scientists have created a cement-free soil solidifier from industrial waste. By combining Siding Cut Powder and activated by Earth Silica, an alkaline stimulant from recycled glass, scientists produced a high-performance material that meets compressive strength standards exceeding the 160 kN/m construction-grade threshold and eliminates arsenic leaching through calcium […]
Featured image of using PWM in PIC16F877A
Core tutorial, Embedded systems

Using PWM in PIC16F877A

Digital signals (0 or 1) and analog signals (range of values) are both used in electronics. Analog inputs can be converted to digital through an ADC. To control analog devices with a microcontroller, DACs are used but they're costly and space-consuming. PWM (Pulse Width Modulation) is a cost-effective technique that ...
Featured image of the timer2 tutorial in PIC16F877A
Core tutorial, Embedded systems

PIC16F877A Timer2 tutorial

The Timer2 module is an 8-bit timer/counter within most PIC MCU devices. Timer2 can increment up to a value of 255 before it overflows back to zero. Timer2 has other built-in features that make it very useful for many different applications.
Featured image of the timer1 tutorial in PIC16F877A
Core tutorial, Embedded systems

PIC16F877A Timer1 Tutorial

The Timer1 module is a 16-bit timer/counter within most PIC MCU devices. Timer1 can increment up to a value of 65535 before it overflows back to zero. Because the timer is built into an 8-bit device, the 16-bit timer register is broken into two 8-bit registers (TMR1L and TMR1H) and ...
Featured image of how to use timers in PIC16F877A
Core tutorial, Embedded systems

PIC Microcontrollers Timers

In this tutorial, we will learn what are "Timers"; we will explain this with examples using the Microcontroller PIC16F877A. For this tutorial is may be helpful to understand the basics of turning an LED on and off, which is explained in one of my previous tutorials on LEDs. In this ...
Featured image of interfacing PIC16F877A with 4x3 keypads
Core tutorial, Embedded systems

Interfacing 4×3 keypads with PIC16F877A

In this tutorial, we will provide an overview of the 4x3 membrane keypad. The keypad serves as a reliable and budget-friendly tool for having inputs in your project. Understanding how to interface with the keypad will prove useful in future projects that require menu selection or similar inputs. Our guide ...
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