Hardware Project - Wifi controlled LED panel
Strawman component list
- Raspberry Pi with USB WiFi
- Peggy 2LE Light Emitting Pegboard kit
- Sparkfun - MAX3232 Breakout
Components in hand
- Peggy 2LE Light Emitting Pegboard kit
- Raspberry Pi with USB WiFi
- Max232CPE
Components to consider
- Peggy 2LE Light Emitting Pegboard kit
- Spark Core for WiFi
- Sparkfun - MAX3232 Breakout
- JeeLabs UART Plug
Microcontroller platform
Peggy 2LE
Serial interface on Peggy 2LE
You can use it to send or stream data or images to the Peggy. (Note that the pins used to replace the serial port otherwise go to the I2C interface and to button b5 on the PCB. So, you’ll need to choose between I2C and Serial when you build it.)
Arduino and the I2C bus
JeeNode format microcontroller and interconnect
JeeNodes are a collaboration between Modern Device and a talented and energetic engineer, Jean-Claude Wippler.
The JeeNode Kit contains all the parts needed to build a JeeNode v6 – including an ATmega328p processor and an RFM12B radio module. The processor chip is pre-flashed with the Arduino boot loader and the RF12demo sketch, so it works to talk to another JeeNode right out of the box. Kits are shipped with the ISM-band 915 or 434 MHz radio module for orders within the Americas
I2C on JeeNodes
Flashback – Ports and I2C in JeeLib
JeeLabs UART Plug
The UART Plug contains a hardware serial port with 64-byte buffers for both sending and receiving. It can support baud rates up to 115200 baud, though this will probably tax the bus through which it is being accessed.
An I2C bus running at 3.3V is used as interconnect, with all the power and signal lines brought out to to both sides of the board to allow daisy-chaining with other I2C-conformant boards.
The two solder jumpers on the board allow up to four UART Plugs to be used together on the same I2C bus.
Beaglebone Black as platform
BeagleBone Black at Adafruit - $45
If you liked the BeagleBone, you will love the next gen BeagleBone Black! With a blistering 1GHz processor, 512MB onboard DDR3 RAM, built in 2GB storage with pre-installed Linux operating system (no microSD card required!), and best of all, the addition of a MicroHDMI connector for audio/video output. This is a ultra-powered embedded computer that can fit in a mint tin. Note: As of October 24, 2013, 11:15amET Adafruit is shipping Rev A6.