Re: FRNBv2 is dead. Long live FRNBv3!
Hi Christoph, --- On Mon, 2/28/11, Christoph Mair m...@chonyota.net wrote: unfortunately the compass chip included in the FRNBv2 is no longer available. (...) and therefore requires a new PCB layout. Which software do you use for the layout? I've tried both pcb (gEDA) and pcbnew (KiCAD), but neither shows anything after opening the files at chonyota.net (complaints about missing components; I don't have the details at hand). Do I need additional libraries? Best regards, Boudewijn ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: FRNBv2 is dead. Long live FRNBv3!
HI Boudewijn, Am Dienstag 01 März 2011, 13:13:08 schrieb W. B. Kranendonk: Which software do you use for the layout? I've tried both pcb (gEDA) and pcbnew (KiCAD), but neither shows anything after opening the files at chonyota.net (complaints about missing components; I don't have the details at hand). Due to my lack of knowledge of open source EDA tools I used EAGLE from CadSoft (http://www.cadsoftusa.com) It runs on Linux, Mac and Windows and you can use the freeware version to view and edit the schematic and the layout. I'd like to switch to OS EDA software for future projects. KiCAD is already installed, I just did not have enough time to play with it yet. Do I need additional libraries? No, everything is included in the two files. Best regards, Christoph ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
FRNBv2 is dead. Long live FRNBv3!
Dear list, unfortunately the compass chip included in the FRNBv2 is no longer available. Thus, I am not able to produce the FRNBv2 anymore. For those of you who still want the board I am designing the FRNB version 3. The discontinued chip HMC5843 will be replaced with it's successor HMC5883 which is slightly smaller and therefore requires a new PCB layout. A new feature of the FRNBv3 will be the support for different supply and I/O voltage levels. The sensors need at least 3V to work properly while the voltage for the I2C bus can be as low as 1.8V. This allows you to connect the board to your Freerunner (using 3.3V for supply and I/O) as well as to other hackable devices such as most devices using a TI SoC (Beagleboard, Pandaboard, AI SmartBook ect.). The top side of the new board which contains all sensors is already finished. For the bottom side I'd like to hear your opinion: what should be included? Currently, the board contains the following parts: Top-Side: - HMC5883 Compass - ITG3200 Gyroscope - BMP085 Pressure sensor - BMA180 Accelerometer (new!) Bottom-Side: - MPR121 Touch Sensor - 38kHz Fixed Frequency Oscillator with ~10% duty cycle for IR remote control applications. I hope this works better than the last approach. - TCA6507 7 channel LED Controller - I2C-Level-Shifter to connect additional electronics with I/O voltages bewteen 1.8 and 5V And there is still some space left (about 50mm²) which I'd like to fill up with other nice gadgets. Suggestions? Best Regards, Christoph ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
