Friday, February 22, 2013
Tuesday, February 19, 2013
In the video I used a 1.8'' TFT display: Get more information
Backstage - An interview with Eric Cartman :)
Follows a simple piece of code to forward the Webcam on the Raspberry-pi's framebuffer. The code is not perfect, in comparison to the codes found on the Web I added the conversion "YUV to RGB32 to RGB16" to support Raspberry pi's framebuffer.
Sunday, February 17, 2013
Sunday, February 10, 2013
How did I do?
- Configure Raspberry-Pi's i2c: Tutorial
- Porting the Arduino code: Arduino FM receiver with TEA5767
- RPi I2C Examples: Robot-Electronics Tutorial
- FM Radio Receiver - Philips tea5767 i2c module (2$)
- 3W×2 Mini Digital power Audio Amplifier Board - pam8403
Thursday, February 07, 2013
Saturday, February 02, 2013
Telepresence refers to a set of technologies which allow a person to feel as if they were present, to give the appearance of being present, or to have an effect, via telerobotics, at a place other than their true location. (Wikipedia)
Goal: When a user logs into the system, this will communicate through an LCD, filmed by a webcam (mjpeg-Stream), information about your IP address.
Try It Now!
- Arudino Uno
- Display LCD
Raspberry Pi runs at start-up my HTTP-Server based on Qt (QHttpServer). Every time somebody connects, Server takes the ip-client and through queries to the site freegeoip it obtains information on the country of ip (also downlaods a Flag Gif).
Server generates a Bitmap to be sent over a Serial Connection to the Arduino Uno.
Ardunio Uno is connected with a SPI-module "ST7735R LCD controller chip", on which I wrote a simple firmware that converts the serial commands in 16bits-Color-Pixels on the 1.8' TFT Display.
To make the webcam stream I followed this guide Raspberrypi_mjpeg_streaming