Lutorm

Member Since: February 1, 2010

Country: United States

Profile

Rocket Scientist…

  • Tutorial - Wireless XBee/AVR Bootloading | about 8 months ago

    Sorry, I didn’t check this page for a while. I’ve put my avrdude on bitbucket, see link below.

  • Tutorial - Wireless XBee/AVR Bootloading | about 8 months ago

    I got a request for my modified version of avrdude that can program an sfxb arduino through an Xbee talking API instead of straight serial, so I put it up at https://bitbucket.org/lutorm/avrdude_sfxb in case anyone else is interested. (It also includes abacklund’s serial sfxb programmer that he posted here.)

  • Tutorial - Wireless XBee/AVR Bootloading | about a year ago

    Yes, I got it to work with a modified version of avrdude, see my comment above.

  • Tutorial - Wireless XBee/AVR Bootloading | about a year ago

    I’ve been using abacklund’s patch to avrdude to bootload my remote arduino for the past 2 years and it’s been working pretty well. I recently switched to series 2 Xbees and wrote a variation of the sfxb programmer called sfxb_api that uploads to remote AVR’s over an XBee mesh network using API mode. Using API mode is required for S2 XBees since they don’t do line passing so the only way to toggle the pin to reset the Arduino was to use API mode to send explicit commands to toggle the pin. (In getting that to work, I also found a buffer overrun in the sfxb programmer that might have been why avrdude sometimes would segfault for me.)

  • Tutorial - Wireless XBee/AVR Bootloading | about 3 years ago

    After playing with it for a while (using the sfxb-avrdude posted above), I found that to get it to start syncing, I had to increase the initial wait in the bootloader code, and also add a little delay before sending the 0x05, otherwise the programmer never synced up. I assume this was because of the delay introduced by the Xbees over a longish, bad link. Once the programming has started, it always seems to work fine.

  • Tutorial - Wireless XBee/AVR Bootloading | about 3 years ago

    Got this working last night, and managed to download a hex file successfully through my very bad Xbee connection. Thanks a lot for the writeup!<br />
    <br />
    A few things: I was confused first about the need for an AVR programmer to get the bootloader onto the Arduino. If you’re used to just uploading through the existing bootloader the fact that you need a special piece of equipment might escape you.<br />
    <br />
    Second, I had the same 64-bit problem with the drivers here, but looking at that USBTiny page at adafruit I found that the “1.12 drivers” there are 64-bit signed and work fine with Win7 x64 without any hassle.<br />
    <br />
    Third, Screamer wouldn’t run for me, but it complained about another .ocx file (not one of the two mentioned above). After a bit of googling I found it on the web, then it worked perfectly.<br />

  • Product WRL-08665 | about 3 years ago

    Anyone know where to find info on how much better reception to expect with this compared to the chip antenna? They both state 300ft, but it seems you should get better signal with this.<br />

  • Product WRL-08664 | about 3 years ago

    I got a pair of these and they work great. However, when I connected the sleep pin to put it in hibernation mode when not used, it generates junk on the serial line of the other unit when waking up. Any ideas why this might be?

No public wish lists :(