Dear List, I already announced it (http://lists.openmoko.org/pipermail/community/2011- February/064474.html), now I'm ready to start production: The Freerunner Navigation Board v3 is finished!
It features a compass, a gyroscope and an accelerometer. All of them work in three dimensions. Together with the included pressure sensor you get a 10 degrees of freedom sensor board which should be usable for inertial navigation, as flight controller or recorder for drones such as quadrocopters and possibly a lot of other gadgets. To be compatible with as many embedded boards as possible, the supply voltage and the I/O voltage of the I²C bus can be different. A 3V - 3.6V supply voltage (VCC) is recommended for the sensors, while the I/O voltage can be anything between 1.8V and VCC. This feature enables connectivity to your Freerunner as well as to most other embedded devices such as the OpenPandora (there is enough space inside the case) or devices from Always Innovating. If you want even more functionality: the bottom side contains: - the MPR121 touch sensor controller - a 38kHz fixed frequency oscillator for IR remote control applications - the TCA6507 7 channel LED controller - a I2C level shifter to connect even more sensors with different I/O voltages - a I²C EEPROM which is also accessible through 13.45MHz RFID. Preliminary documentation is available on the wiki page http://wiki.openmoko.org/wiki/Freerunner_Navigation_Board_v3 It will be improved within the next two weeks. Schematic and PCB-Layout are available from https://gitorious.org/frnbv3/frnbv3-hardware (Cadsoft Eagle file format) Preorders can be placed on http://www.handheld- linux.com/wiki.php?page=Navigation%20Board General availability is scheduled for mid-may. I hope you find this little device useful for your projects. If there are any questions, please let me know. Cheers, Christoph _______________________________________________ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
