Circuits & Schematics Microcontrollers Usage - 15

Gunther Kraut Logic 1, logic 0, and high-Z make for three possible states: forward, reverse, and off Independently switching two loads, such as relays, usually requires two microcontroller-I/O ports. Two ports let you control the loads so that you ...

Noureddine Benabadji, Algeria LEDs provide a convenient way to electronically display information. Although the seven-segment LED display, arranged in the form of the digit 8, is common, it does not allow the display of some alphanumeric ...

Seven segment LED displays are a very popular mean of displaying numerical information and finds application in front panel display boards of microwave ovens, washers and dryers, digital clocks, frequency counters, and many other gadgets. Compared ...

All waveforms, no matter what you scribble or observe in the universe, are actually just the sum of simple sinusoids of different frequencies. Hi, I am just refreshing the basics of fourier transform. I am not an expert. Now I did a small audio ...

Part 1 Description and Schematic Part 2 Firmware and Sowtware Assembly Because the circuit was so simple I took the easy way out and assembled it on a piece of veroboard. Nowadays I would design my own printed circuit board (see custom PCBs). ...

Part 1 - Description and Schematic PIC Firmware The firmware running on the PIC18F2550 was written for the CCS C compiler and uses the CCS USB protocol stack, which in turn appears to be derived from Microchip code. At the top level it is quite ...

Have you ever wondered exactly what is going on in the 2.4GHz WiFi and ISM band around your house. What channel is it best to set your wireless router to? Why are you getting such poor performance across your WiFi network? Is your neighbour on the ...

This shield could be used as a stand-alone transponder key, or with Google’s servers to create a cloud-computing application. It’s time to present you an application with RFID. We want to show you how to use the popular Arduino to ...

Having done half a dozen V-USB tutorials I decided it’s time to whip up something cool. As USB keyboards were an area untouched, I decided to make a small USB HID keyboard device that types a password stored in EEPROM every time it’s ...

I needed a couple of AA batteries and found the display at the supermarket where they were all arrayed. Normally when I’m shopping in the supermarket, I tend to look at the price/kg or price/l when comparing similar products. In the case of ...