Comments

• 

  Jeffry Archambeault February 25, 2023 at 3:57pm

  Hi!
  I'm building a prototype rover using arduini, raspberry pis, L298N, etc communicating over I2C. Pi is gonna run direwolf tnc so I can drive the bot via terminal before I get fancy and go AX25. Would kinda like to treat it more like a NASA rover than RC car (will be upgrading from $10 crawler kit to using 2 hoverboard motors on welded frame) so I'm wondering what to do about video. Plenty of room on 70cm, and I have spare 70cm ht's to play with. Cross-band with 2m up and 70cm down with ATV and and return data? KISS for now and just j use 2m for data and 70cm for video?
  
  73 de Jeff AJ2A
  • John Molnar > Jeffry Archambeault February 25, 2023 at 4:30pm

    Hey Jeff!
    You'll probably need to watch your layout and have a good LPF on the 2m up. The 3rd harmonic can and will desense the 70cm if using 70cm for any RX. Are you planning
    2m as the flight control channel? I run 900MHz and 2400 for everything here...LoRa. Best luck with the project (I've 'been there' with 2m and 70cm...lol)
• 

  John McGrath October 25, 2013 at 9:13pm

  @cory Congrats on the new ham lisc and you are doing the right thing getting the general ticket asap if you really want to enjoy ham radio the HF bands is where its at. If you want some help with anything ham drop me a note. And you are in the right spot for APM for sure. 
• 

  Earl August 16, 2013 at 4:57pm

  OK OM...your 5x9 here !

  earl... N8TV
• Moderator

  Michael Pursifull April 1, 2013 at 9:34pm

  Ah! Clearly I don't know the DX5e (I use futaba) and I feel much better about your plan now. Whatever you do, you'll find an appreciative community if you write it up and post it after you do it. That is what this community is about, in fact, and that is basically how the community was built. Happy hacking. kg4sen
• Moderator

  Michael Pursifull April 1, 2013 at 9:26pm

  I'm not suggesting you cannot do it. In fact, for my purposes, I'd like to encourage you to try. More problem solving and variety is good for the community, and would make a nice blog when you've finally figured our what works for you. But allowing you to go forward without asking those questions would also be selfish of me.
  
  Propose your plan in the ardurover group. See what TCIII and the other rover users think.
• Moderator

  Michael Pursifull April 1, 2013 at 9:22pm

  Yes, I understand that. What I'm asking, and what is important here, is the toggle actions. You see, few people at 3DR yet have much experience with rover. And one of the current features that is used in the rover code that is different/less common with the other code bases is the toggle used to mark waypoints or to clear learned waypoints. This is frequently done right now with rover code, and not the others. So it's worth thinking about how that is done with no programmable many-channel remote even with telemetry.
  
  It can be done easily enough with mavproxy and RC override, by quickly pasting in a flip flop of pwm values. But it is not easily done with a mouse and a drop down box. Not well enough to get the timing right.
• Moderator

  Michael Pursifull April 1, 2013 at 8:51pm

  How will you toggle learning new waypoints or clear learned waypoints?
• 

  Wilfred Swinkels March 30, 2013 at 11:23am

  Hello old men...

  just joined this group (i saw it on the main page...being a ham i had to join)

  my callsign is ON4NDO and I have a hexacopter with an APM 2.5 

  take a look on my personal page

  73's

  Wilfred.
• Matthew Pitts March 29, 2013 at 10:15am

  Bret, I've been considering doing something like that for Field Day, but haven't gotten as far as completing the drone yet.