Embedded Lab | Embedded Systems tutorials, projects, and more …

Adding hardware media controller to your PC

Posted on October 26, 2014 by R-B Leave a comment

Keyboards with extra keys for quick multimedia control are a handy shortcut for geeks who love to listen to music while working on their computers. However, not all keyboards contain those extra keys. The Peng Multimedia Controller project is a DIY USB hardware device that provides shortcut keys for easy media control. It supports the basic media control features such as Next/Previous, Play/Pause and volume control. The project uses Atmega8 microcontroller which communicates with the PC through a software-only implementation of USB using V-USB. While push switches are used for Play/Pause and Next/Previous functions, a linear potentiometer is used for volume

Arduino standalone MP3 player

Posted on October 25, 2014 by R-B Leave a comment

This Arduino-based standalone MP3 player was designed by Jose Daniel Herrera using the VS1002d single-chip MP3 audio decoder, which is a complete audio solution with a high-performance, low-power DSP processor along with working data memory, instruction and data RAM for user applications, serial control and input data interfaces, 4 general purpose I/O pins, an UART, as well as a high-quality variable-sample-rate mono ADC and stereo DAC, followed by an earphone amplifier and a ground buffer. His project uses a SD card module for storing MP3 files and a 4×20 character LCD for providing an user interface for displaying song menu and other information.

3-D printed walking robot

Posted on October 24, 2014 by R-B Leave a comment

One of the most interesting applications of 3-D printing technology is building customized robot parts. It allows makers to design their own parts on a computer using affordable tools and convert the design into an actual physical product in just a few hours. Randy’s 3-D printed walking robot is a great example of 3-D printing robot parts for rapid prototyping and implementation of your ideas. The robot uses two standard servos for locomotion and are controlled by Arduino. The author also shares his 3-D printer design files and Arduino sketch to the public.

Arduino gesture vocalizer

Posted on October 24, 2014 by R-B One comment

People with impaired hearing and speech often find difficult to interact with other people, mostly because their sign language is not understood by all. This Arduino-based gesture vocalizer is designed to assist those people to communicate with normal people. The device is built as a wearable glove, which converts the hand gestures into human recognizable audio. Two flex sensors for detecting bending of fingers and one ADXL335 3-axis accelerometer for getting the orientation of hand are embedded on the glove for gesture recognition. For audio conversion, the APR33A3 audio processor chip is used to storing and playing audio messages. An LCD display

Zero Plus: An open-source wifi module for IoT applications

Posted on October 23, 2014 by R-B Leave a comment

Zero Plus is a new open-source wifi module for Internet of Things applications. This project is currently being crowdfunded on Indiegogo. With RT5350 wifi SoC on board, Zero Plus provides a high performance 360 MHz CPU for advanced applications such as Wi-Fi data processing, etc. In addition, the RT5350 offers a variety of hardware interfaces (SPI/I2S/I2C/PCM/UART/USB) to support a range of possible applications.

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