It’s an USB Audio Streamer V1.0 and Not a Steamer!

Do you have the idea to create a USB sound card, which is based on a PIC interface? Today, you have the chance to learn to develop an USB Audio Streamer V1.0, or it is a microchip PIC based USB sound card. For this project, the hardware part is based on all Microchip, and the software part uses a modified version of Microchip USB framework. The main objective of this custom interface is for programming the device serial number and upgrading the firmware. Hardware Part The Microchip PIC18F2550 USB processor is used as the sound card purpose. The processor is clocked at 48MHz, where it is the maximum rate for this processor. The microcontroller is being connected via the SPI port to the Microchip MCP4822 12bit D/A converter. The separate port is being used in the project to control the volume and enable it to run inside the processor at a different priority level. Software Part The main software part that consist in the USB audio streamer are the audio card firmware, the card INF file for the custom interface,… Continue reading

Break Timer In Your Mac

Wishing you has a signal that will tell you to get some fresh air, after long hours of sitting in front your computer? Well, we recommend you this Mac Compatible, “Break Timer”. Material needed: Microcontroller board OS X Software Hardware that connecting to microcontroller Note: For the microcontroller board, you need to go to this site. Click on the Mac OS X link, extract the file after downloading, and drag the folder to your Applications folder. Lastly, just install the board’s drivers. Hardware Connecting Firstly, you must have two pieces of wrapping wire and strip the wires with wire striper about one inch of each end. Wrap one wire with wire wrapping around each of the pins at the sensor. Then, strip an inch from the other end of each wire and wrap the end of the other wire to the short end of that pin. After that, plug the end of the resistor into the hole on the Arduino Analog in 0, while male header into the hole marked 5V and others to GND. Finally, connect it with USB… Continue reading