This project is a Wav Audio Player based on PIC18F2550, it is able to play RIFF WAVE files and display some file information on the N6610 LCD. It plays the audio file via the PIC’s PWM with a simple RC filter on the output pin. The data is read by a SD card. Check it out.
PIC18F SD WAV Audio Player - [Link]
This is a sample code generator for ZiLOG’s Z8F64xx Z8 Encore family of 8-bit Flash MCU’s. It can generate code for Timer Interrupt and for pulse width modulation – PWM on all internal timers. It is tested for Z8F6423 running at 20MHz crystal but it should work with other parts.
ZiLOG Z8F64xx Timer Calculator – [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]
Brad @ bradsprojects.com shows us how to use 8 RGB LEDs to make a POV display. To produce the display image hex code he uses an excel spreadsheet and then he programs the HEX code to the PIC. The display data is stored on an EPROM that allows to store large messages. Check the video above. [via]
8×85 Pixel RGB LED POV Display – [Link]
This is a cool tweeter follower project that is powered from an Arduino board and Nixie Tubes. This device is able to show the amount of twitter followers that an account has with a 30 seconds refresh rate. To control the tubes and connect to the internet, other than the awesome Ogi Lumen kit, Adam Meyer used Sparkfun’s Arduino pro and Seeed Studio’s ethernet shield. [via]
nixie + twitter = twixie - [Link]
This project describes in detail how to use a LM35 temperature sensor to measure the surrounding temperature and display on a LCD screen by interfacing with a PIC microcontrolller. The LM35 sensor gives an analog output voltage that is proportional to the temperature. The output from the sensor is converted to a 10-bit digital number by the internal ADC of PIC16F688 micro. This project provides every details of software and hardware design involved.
Measuring temperature using LM35 Sensor – [Link]
This is a series of books covering AC, DC, Semiconductors and Digital Electronics in an easy to understand way.
Lessons In Electric Circuits – [Link]
This project is a keyboard light using 5 RGB Leds based on ATMega328 and Arduino clone platform. The device is communicating with the PC using serial port connection to set the desired color. The color mixing is done using PWM control of leds and 2907A transistors. Check the project on the link below.
Arduino Clone Powered RGB Light – [Link]
Analog to digital conversion are required in embedded systems because most of their surroundings comprise of analog signals and the embedded processors can process only digital data. This tutorial shows how to use the internal ADC module of a PIC microcontroller to read an external analog signal and convert it to a digital number. The conversion output will be displayed in a character LCD.
Tutorial on Analog to Digital conversion using PIC - [Link]