A couple of weeks ago, I just post a review of my MCP23017 breakout board. As the board configuration allows to connect up to 8 of these boards, I decided to do it and see that it really works. My goal is interface 8 LCD displays with two wires: SDA and SCL from an I2C bus. …
How to interface 8 LCD displays and 24 leds with only two wires Read More »
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 …
I develop this MCP23017 Breakout 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 …
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 »
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 »
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 …
After checking out Soft Kinetic’s embedded 3D depth camera earlier this week, our attention was brought to a similar offering coming from Germany’s PMD Technologies and Infineon. In fact, we were lucky enough to be the first publication to check out their Cam Board Pico S, a smaller version of their Cam Board Pico 3D …
The new iW3606 and iW3608 single-stage, solid state lighting (SSL) LED drivers from I Watt feature a wide, flicker-free dimming range from 100% all the way down to 1% of measured light, to closely match the dimming performance of incandescent bulbs. This enables the smooth, “natural” dimming, with no light drop-out at the low end …
iW3606 – New LED Drivers Deliver Exceptional Bulb Dimming Performance Read More »
Well-proven Piher potentiometers with a dust-proof construction will ensure a reliable operation to your devices. Resistive trimmers of the Spanish company Piher may be familiar to you already from our article – We became an authorized Piher distributor. This time we enlarged our offer with rotary potentiometers of the PC16 series in a wide range …
Build this single-sided Xilinx CPLD board at home and experiment with CPLDs and hardware description language (HDL). The source files for the project are in open source KiCad format so you can modify the circuit diagram and PCB if needed. Follow the VHDL CPLD course and learn to program a CPLD using VHDL code. CPLD …
