The Electronic Mini-Badge is a PIC24FJ64GA004-based electronic badge that displays color slideshows. Many electronic badges display scrolling text using a matrix of discrete LEDs. This low-power system features a graphical OLED display and can be easily upgraded to handle animation, video, or RF communication.
I’ll have to take a look over this circuit’s schematic to see if i can easily adapt it to a Nokia 6100 LCD display, because i happen to have one, and it would be a nice project.
Electronic Badge Displays Color Slideshows: [Download Project] - [View Project PDF] - [via]
The handy Butterfly GPS is a cost-effective system that presents location, date, and time data on its LCD. The system features an ATmega169 and a highly sensitive GPS receiver engine board based on the SiRF chipset. Its amazing what you can do with such a low cost development board.
AVR Butterfly GPS System: [Download Project] - [View Project PDF] - [Via]
This system automatically switches from one ADSL modem to another every time there is a link failure. The ATmega16 monitors network connectivity over Ethernet. When a failure occurs, it automatically powers off the primary ADSL modem and powers on the secondary ADSL modem.
ADSL Fault Tolerance System Keeps You Connected: [Download Project] - [View Project PDF] - [Via]
Were starting to see more and more green designs, which is nice, some people are really concerned about the planet we live in. The PowerBox is part of the Cornell University student projects 2008, and its main goal is to calculate and report the following parameters:
- Real power
- Apparent power
- Power factor
- RMS Voltage
- RMS Current
- Frequency
- Energy usage (Kilowatt-Hours)
All of the data is gathered by a C application which shows real time graphs and data display. Another feature of the PowerBox is that it features a remote switch that allows the computer to turn the power on or off and set wattage limits for auto shutdown. This way people can monitor and control their energy usage. Good job Cornell students.
Monitor And Controll Your Energy Usage With PowerBox: [Link]
Parallel interfacing LCD with MCU needs at least 6 I/O pins (4 bit mode) and maximun 11 I/O pins (8 bit mode). The I/O pin’s can be cut down to 3 pin by serial interfacing using shift registers. There are a few shift registers that can be used such as 74HC164, 74HC595, CD4094 and other compatible 8 bit shift register. Before you attempt to do serial interfacing, it helps to get familiar with parallel interfacing, you can find many reference from internet.
Serial interfacing LCD with PIC Microcontroller: [Link] - [Via]
