If you like PC modding this is cool project for you. This is an USB interface for alphanumeric LCD display like 4×20 which can be controlled with LCDSmartie program. USB interface is implemented by using PIC18F2550 microcontroller. Using USB LCD module you can view many types of information taken from PC like temperatures, time/date, MP3 song titles, view emails, RSS feeds all that LCDSmartie or other program supports.
USB LCD Controller - [Link]
This project is a 7×5 LED Scrolling display based on Attiny2313. It uses easy to find components. Check schematic and PCB boards on the link below.
7×5 LED Scroller on Mini Attiny2313 - [Link]
Seven segment LEDs are popular because they are visually bright and have wide view angles. They are mostly used to display decimal numbers but can also display some letters. This is a nice article describing about the seven segment display modules and how to interface one with a PIC microcontroller to display numbers and characters.
Experimental tutorial on seven segment display – [Link]
This project is 64 pixel RGB LED display able to show interactive animation. The project uses a potentiometer, a led matrix, electronics and custom code. No further documentation is available.
Animation on a 64-pixel RGB LED display – [Link]
Tachometer is used to measure the rotational speed of any shaft or disc. The unit of the measurement is rotation per minute or just RPM. This project describes a contact-less tachometer based on PIC16F628A microcontroller. The rotation of a disc is measured through a set of IR module that converts one complete rotation into a pulse. The result is displayed in a multiplexed seven segment display.
Contact-less Tachometer using PIC16F628A Microcontroller – [Link]
This project shows how to build a Panaplex display using some electrodes and a jam jar as the vacuum chamber. Panaplex is a gas-discharge plasma display related to the Nixie tube. The builder, Lindsay Wilson, explains how it works:
The entire thing is based on using a jam jar as a vacuum chamber. Each of the cathode electrodes is made from a 2cm length of copper wire. A stainless steel M3 screw is soldered to the middle of the wire. This allows it to be screwed to the support plate, which is made from a piece of ceramic tile. It was very easy to drill the 3mm holes with a diamond drill – the tile is made from sintered ceramic powder and is quite soft. A solder tag is mounted on the back of each cathode screw which allows electrical connection to be made to the respective cathode.
Homemade Panaplex display - [Link]
The device comprises two parts: LED control board and LED display board. The two PCBs are designed to fit together one behind the other using two sets of dual row connectors and 4 spacers. One of this connector is used for the electrical connections, while the other is only used as a mechanical connecting element.
Dot matrix LED running display - [Link]
This is an easy to build, but nevertheless very accurate and useful digital voltmeter. It has been designed as a panel meter and can be used in DC power supplies or anywhere else it is necessary to have an accurate indication of the voltage present. The circuit employs the ADC (Analogue to Digital Converter) I.C. CL7107 made by INTERSIL.
Led display digital Voltmeter – [Link]
Connecting a LCD display to your personal computer is an easy job. Displaying data from your PC to a LCD can be proven very exiting, so give it a try and build your own today!
Build your own printer cable LCD Display - [Link]
Jeri Ellsworth show us how she build EL wire and electroluminescent displays. In the first video above, she shows how she twisted the enameled and bare wires to create the EL wire detailed in her previous vid. In the second video above, she shows how she used some etched junk circuit board and Luxprint EL ink to create an electroluminescent display. [via]
EL wire and display hacking with Jeri Ellsworth - [Link]