What’s Your Type? The television is one of the most significant inventions of the 20th century. For the whole picture, read How Television Works. In the past few years, there have been tremendous leaps in TV technology. Twenty years ago, TV shoppers had very few choices. These days, several TV technologies are competing with one […]
It has been 7 years (!) since I posted my PIC18F2550 KS0108 Graphical LCD Oscilloscope code and schematics. I have long since taken the circuit apart, sold my PIC microcontrollers, and moved on in my life (as one can surmise from my most recent posts detailing my graduate and postdoctoral work). However, I still get
Arduino FIO LCD Oscilloscope Read More »
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 »
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 »
The PICASO-OGM lets you incorporate the full capabilities of the PICASO Graphics Processor and our TFT-LCD displays into your own custom design. The PICASO-OGM is ideal for high-volume applications that require a custom design. Development with the PICASO-OGM is as easy as with our standard display modules. Simply choose your preferred display size, incorporate the
PICASO-OGM OEM Graphics module Read More »
−Inhaltsverzeichnis Thermometer width DS18S20 Hardware Software final Download Thermometer width DS18S20 In my new Dacia Duster is missing unfortunately an outside temperature indication. A finished thermometer with LCD did not separate from there while the contrast with sunlight usually particularly is. I had still alphanummeric LED display in red there for this project in the
ATTINY2313 Thermometer width DS18S20 Read More »
The technology behind the LCD projector is nearly three decades old in 2012, but it remains one of the top digital projection technologies, alongside Digital Light Processing (DLP) projectors. Inventor Gene Dolgoff developed the first LCD projector in 1984, and both Epson and Sony continue to employ the technology in 21st century projectors. The old
How LCD Projectors Work Read More »
I spent part of an afternoon developing a hardware RSS reader (most of my time was spent on the python side of things). It’s pretty simple and uses an AVR microcontroller connected to a computer via a serial cable. Hardware I am using the Dragon Rider 500 as a development board. This provides all of
RSS Reader using ATmega8 microcontroller Read More »
If you have used LCDs in projects before you have realized that to use the backlight on a LCD display you need large positive and negative voltages. This circuit will help you create the voltages you need from a simple 2.5V to 6V input. I chose this circuit since many of my projects run off
LCD Display Backlight Power Supply Circuit Read More »
Nematic Phase Liquid Crystals Just as there are many varieties of solids and liquids, there is also a variety of liquid crystal substances. Depending on the temperature and particular nature of a substance, liquid crystals can be in one of several distinct phases (see below). In this article, we will discuss liquid crystals in the
