Articles and news - Microcontrollers - 7

In this project, we will be using the ESP8266-01 Wi-Fi Development board to make a small IoT home automation that has Wi-Fi featured in it. The system operates on a local web server and is easy to use for the novice...

Laboratory data often appears as Gaussian curves, and today's laboratory data-acquisition software is designed to analyze these data to determine such things as peak location, amplitude, area, and width. A good test signal is useful in developing such software...

The most common method for interfacing multiple switches – multiplexing – allows for the connection of (N/2)2 switches with N microcontroller I/O lines. The method described below, which has its roots in an LED interface technique commonly known as “Charlieplexing,” makes it possible to interface...

Microchip grows its commitment to the 8-bit PIC and AVR MCUs by releasing five new product families and over 60 new devices...

You can use a microcontroller that includes an ADC to design a two-wire-plus-ground keyboard interface. For example, you can use a resistive voltage divider to identify a pressed key...

The performance of the watchdog circuit may not match that of a dedicated watchdog circuit, but this circuit is helpful when the only watchdog in the lab doesn’t meet your design’s temperature requirement and when you are in a hurry to finish a prototype...

Although microcontroller manufacturers try to offer designers products that almost exactly fit the needs of their designs, another output pin is often necessary...

If you use a microcontroller to detect a key closure, checking the states of (x+y) lines requires an equal number of I/O pins. Occupying only one free I/O pin, the circuit communicates with a microcontroller...

Using a PN-junction diode for temperature measurement usually depends on its 2 mV/K temperature coefficient. Less well-known is the fact that the reverse current of a PN-junction diode shows a good exponential dependency over temperature...

Why not take advantage of the micro-controller included in many systems these days? This design uses microcontroller feedback to produce a –50-V, 1-W power supply...