RFID reader / writer SL500F gladly communicates with any 13,56MHz RFID card. For a concrete application we usually need only one type of an RFID communication. For the sophisticated devices or for devices intended for configuration of various RFID cards, a reader handling all common protocols can be very convenient. SL500F, a novelty in our […]
SL500F – a „full-featured“ RFID device Read More »
5: Bluetooth Car Stereos Just because a vehicle didn’t come straight from the dealer ready to connect to Bluetooth doesn’t need to deter you from upgrading. There are stereos on the market that can have you hooked up and ready to go in no time. These devices help sync everything together and provide you with
5 Bluetooth Car Accessories Read More »
I develop this MCP23017 Brekout Board to interface a 2×16 LCD display with any microcontroller using a standard I2C bus. Typical 2×16 displays needs at least 6 lines to work (when working in 4-byte mode); in some cases, this will be prohibited for some microcontrollers. With this board, you can control it with only two lines
Designing Electronics in Spain Read More »
In most of the world, camcorders, or video camera-recorders, have been a familiar sight for nearly 20 years. People take them everywhere: to school plays, sports events, family reunions and even births! When you go to a popular tourist spot, you are surrounded by them. Camcorders have really taken hold in the United States, Japan
How Camcorders Work Read More »
Write messages and show animations on this palm-sized heart-shaped LED display. Works seamlessly with Arduino, and requires only three pins to control. Want a heart matrix of your very own? You can buy this DIY kit for $17.95 on the product page. How does it work? Three shift registers control two LED matrices, each with
Two LED matrices give 70 LEDs to light up a necklace with Read More »
Hard Drive Backup Solutions To make backing up your hard drive as easy as possible, you should set up a backup profile. Most PCs with Microsoft Windows XP have a program called Windows XP Back Up installed as a useful application. Once you open the application, you can follow the instructions from the backup wizard
How to Back Up a Hard Drive Read More »
With the proliferation of high-brightness LEDs designed to provide replacement lamps for commercial and domestic lighting there comes an equal, if not greater, proliferation of power supply solutions. With hundreds of products from dozens of manufacturers, it becomes a question of how to make sense of all the permutations of input / output voltages and
How to Choose the Right Power Supply for Your LED Lighting Project Read More »
So, faced with becoming little more than a dusty museum piece, perhaps it was inevitable that watches — like phones, coffee makers, refrigerators, automobiles and even entire houses — would become “smart,” i.e., equipped with microprocessors, software and wireless connections that allow them to perform all sorts of functions beyond the one for which they
How the Sony Smartwatch Works Read More »
Just from pure passion to see how low-end PIC exercises AVR, I made this programmer. Basically it is STK500 port on PIC16F1825. I took this http://www.tuxgraphics.org/electronics/ … 5101.shtml one, did some clean-up, wrote new hardware layer for PIC16 and voila – new programmer is born. It was done in one evening and night, ready to
AVR programmer on PIC Read More »
Thermochromic inks first hit the mainstream in the 1970s, appearing in one of that era’s lasting icons — the mood ring, which supposedly used the wearer’s body heat as a sign of his or her emotional state. More recently, a microwaveable maple syrup bottle featured a thermochromic label that indicated when its buttery, delicious goodness
How Thermochromic Ink Works Read More »
