uc4fun strikes back!!

We're back, and it's for good! uc4fun is starting a new project, and to start developing some code we thought it'd be a good idea to redesign our "arduino-inspired" prototyping board: it has a 40pin Atmega644 uC with access to all it's ports, plus a JTAG header connector to plug in our Dragon debugger and have some GDB-DDD goodness.

Here's a small time-lapse video of the board's building process:

SD external memory storage

This weekend I spent some time bulding what will be the solution for permanent storage problems : SD card breakout board!!! I'm not so good at electronics, but it's tested and all the signals arrive correctly where they should ;)
The next steps are developing the SPI - SD communication protocol and a simple FAT16 implementation (contributors are welcome !!! )

Sensor test : ambient light

Proof that the light sensor integration works ;)



The sensor used is a TEMT6000, that just gives a voltage value between 0 and 1.5V depending on the ambient light conditions.
This video also shows that the analog filtering mechanism is working ok (average of N samples).