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Everything posted by SixSixSevenSeven

  1. Certain MSP430 products have a built in USB peripheral such as the F5529 mentioned above. The USBSerial library exists to allow you to use this USB port as a serial port back to the host PC where the USB device should be detected as a USB-Serial adapter. Its rather similar to the leonardo which also has a USB port setup as a serial port. Its essentially an alternative to the older system of having another chip on the board performing USB-Serial functionality, such as an FTDI on older arduinos.
  2. The IRRemote library uses Timer1. The 2231 and 2452 devices do not have a Timer1.
  3. Well, see how many EEPROMs you can run from 1 AtMega, Then chain the AtMegas all together with all the EEPROMs with 1 AtMega acting as a master. Worlds most overcomplicated 4-5mb EEPROM.
  4. seems bitlash works on the stellaris as is
  5. Make a roundworm brain http://hackaday.com/2014/12/15/gift-your-next-robot-with-the-brain-of-a-roundworm/
  6. according to the user guide there is a jumper to select between using the hardware IR pin offered on certain msp430 devices vs pin 19 on the boosterpack header
  7. the arduino library is absolutely fine as is. I would attribute it to an error in your code or wiring not the library.
  8. you do need ir.resume() else it won't pick up the new command. You can easily hop back and forth between 2 energia sketches too while you isolate issues. I'd actually take a slightly altered approach from your code. Have a variable to store the current mode, in loop() a switch statement executes the right action for each mode (with a stop mode being included). Then when IR data is available, set the mode variable accordingly, if you are in a mode already, switch to the stop mode else go to whichever one the IR command dictates.
  9. PIC32 only though, all the PIC32 parts are actually MIPS cores.
  10. Energia does not actually use the com port for programming, it makes no impact on programming.
  11. Fully charged they are usually higher than the 1.2v nominal. Measured one at 1.45 from charger.
  12. Those are Cortex R. M7 was only recently unveiled by ARM, nobody has M7 chips out yet.
  13. New Tiva C relatives running Cortex M7. Accompanying launchpad running silly high clock rates for no particular reason.
  14. I'd be looking at i2c or UART depending on what needs doing. CAN is wicked, but if you are just sticking 2 micros together it is probably overkill.
  15. Shouldnt be using 12 or 13 in the UK (not that any body is going to know).
  16. sparkfun have an MPPT single cell LiPo charger. might be worth looking at
  17. I like the addition of a 5v pad on the launchpad. Wasnt entirely needed but its a nice touch. LED1 shared with TX though, yes I see the utility of it but I would have preferred the user LED to not be shared with the TX pin and instead to have a separate TX LED. But from what I can see, neither of the 2 user buttons or LED2 share connections with the LCD or boosterpack headers which is also a very nice feature to me, no interfering of buttons with boosterpack functionality or LCD functionality and no random blinking of the LED unexpectedly when interacting with boosterpacks or the LCD. I
  18. As long as the M7 launchpad has battery backing for the hibernation module, oh its got to be a model with a full blown calendar like the tm4c129.
  19. time for a tm7c product family and accompanying launchpad in my opinion.
  20. 3.3v supply? I believe the 3.3v supply on the launchpad comes from the FET side, there isnt a regulator on the launchpad itself.
  21. Cut the power to the servo with a transistor, then detach it from the MCU (else you have a timer running that could otherwise be shut down). Reattach servo, then bring power back on.
  22. A raspberry pi has GPIO and can indeed run scratch so you may be able to start there. Otherwise, Energia and Arduino are very very similar, only real difference is the boards but the source code is very similar, I don't think it would make much difference, Arduino is of course more popular and better documented but can't go wrong with a TI launchpad board + Energia.
  23. I would add the ICSP header. As of arduino 1.0, shields which want to use SPI should do so via the ICSP header and not via the digital IO pins, this allows for a workaround to the otherwise inconsistent SPI pin locations between different processors. This would also allow you access to more of the XL boosterpack pins on the arduino shield if you removed SPI from the main digital pins too (or alternately if this is aimed at the tiva boards, they have multiple SPIs so maybe one in the traditional uno location and a 2nd on the ICSP may work) Technically you dont need level translation for
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