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Everything posted by Silverwolf_7

  1. Buy some aligator clips and use these https://www.amazon.com/10PCS-Nozzle-Flexible-Coolant-Orange/dp/B00UBYS95I/ref=sr_1_2?ie=UTF8&qid=1502766704&sr=8-2&keywords=flexible+coolant+hose
  2. I have a Turnigy 9x flashed with openTx and an FrSky DJT module. The receiver is a D4R-2 and the antennas look fine as they're protected with heat shrink and zipties. Flight controller is an Omnibus F4 Pro V2. It has an sd card slot so I'll plug one in and see what the black box says if the issue happens again. UPDATE: I took apart the quad to add a 12v regulator and it turns out one of the antennas had a crease in the active end. Switched it out with one from another frsky reciever and everything seems to be working now. I'm not sure if it was cut through all the way but it seems to have been the source of the issue.
  3. So during one of the first flights of my new 5 inch martian build this happened https://streamable.com/b8inq. Any idea what causes this stutter?
  4. How much O2 do you need? You can just buy a tank from a welding or medical supply company. I don't think it's very expensive.
  5. What do you mean by "normal controller"? I'd assume you mean ready to fly as in it comes with a remote?
  6. The motor is dead. Brushed motors for multirotors have to be replaced after a while, especially after a high current draw such as having a hair wrapped around the shaft. Your best bet is to get a new motor. Make sure to check for cw/ccw rotation.
  7. This is a good start Eachine e010. Then look into a tiny whoop. Its great for flying inside.
  8. So I built a Tiny Whoop about a month ago with an AcroWhoop v2 FC with the FrSky receiver. Recently I've been having an intermittent issue where occassionally when I am getting ready to fly the whoop will receive delayed commands from my transmitter (Turnigy 9x flashed with openTx and an FrSky Djt module). I connected it to BetaFlight and checked the reciever tab and saw all the channels bouncing all over the place from center (1500). If I arm it the whoop will idle but after disarming the whoop will remain armed for a few seconds. Re binding seems to fix the issue but it always comes back. Any Idea what causes this?
  9. I got these for my starter setup. Goggles(Box Style no DVR or A/V out) $50 when I got it. Camera/VTX AIO I'd say look for a set that has A/V out so he can record to something like this if he really wants a DVR after flying for a bit. DVR(CrazePony) DVR(Eachine)
  10. The color will sometimes invert on my tx03. Usually when I'm flying outside. Maybe there's interference on that channel?
  11. If the relay needs 24v to energize you're better off just using the mosfet. If the relay can be energized with 5v its as simple as connecting one side of the coil to the ground pin on the arduino and the other side to any writable pin. Then just use a digitalwrite() to activate the pin energizing the relay.
  12. Most motors use m3 size screws. You can always enlarge and re tap the hole and just use a larger screw if there is enough material on the bottom of the motor.
  13. Regardless of what they are intended for, all a simple PDB does is act as a busbar for the battery. All of the positive leads are connected together and all of the negative leads are connected together. You could connect the battery directly to an esc pad and it would still work the same way. My first tricopter used 2 wires tied together in the middle for a PDB. More complex PDBs will tap the battery contacts in parallel to allow for regulated voltage for leds, cameras, a vtx or voltage monitoring in addition to the simple power distribution to the escs.
  14. The large pads in between the esc lines marked + and -. It looks like either side will do the same thing so pick whichever fits your quad best.
  15. My friend just finished an awesome stryfe mod. He used 2s(cell) LiPos.
  16. 1. Google: "airdueno projects" 2. Click Search instead for: arduino projects 3. Pick one from millions 4. BUILD IT 5. Profit
  17. https://www.amazon.com/SUPERNIGHT-Waterproof-Flexible-Controller-included/dp/B00B2F3KDQ/ref=sr_1_9?ie=UTF8&qid=1492643689&sr=8-9&keywords=rgb%2Bled%2Bstrips&th=1 These have worked fine for me. Get the waterproof ones the rubber coating makes them less likely to be caught on something. Make sure you get a controller and power supply for them. And look for true rgb leds some strips have seperate red, green, and blue leds and give a weird alternating color effect.
  18. Maybe ask this in the photography thread instead you'll probably get more information there.
  19. Put a diesel in it and roll coal when you pass another prius.
  20. I stand corrected they can take 12v.
  21. 3d printing a part will be fine, the set screw is more for if the motor is on its side. As for the regulator you will need to power the arduino with 5v as well as whatever voltage the stepper driver needs. Most arduinos will burn up if you try to run 12v through them. Assuming the stepper driver needs 12v you will either need 2 powersupplies (one 5v the other 12) or a regulator to bring the 12v down to 5v for the arduino.
  22. You will need a mosfet or motor controller like the one you linked to drive the motor from the arduino. Wire a voltage regulator in parallel with the source to drive the arduino while pulling 12v from the source to drive the motor controller. As for attaching something to the motor shaft it depends on your use. A 3d printed object would work depending on how much torque will be applied to it. Usually a set screw goes against the flat face of the motor shaft through the side of the hole to prevent the sprocket or gear from shifting. Pretty much any nano clone will work or maybe I'm just lucky with mine. Out of curiosity what are you trying to make?
  23. If you install ROS http://www.ros.org/ on it I think that would be a good starting point.
  24. My university doesn't really recognize our robotics team either. We're considered a club so we have to appeal every year for funding from the student senate. At least we're allowed to display our awards and robots in the engineering building. Have you looked into grants or fundraisers? With only 4 active members I know it's hard to take on extra work but the experience will be worth it. Back to the robot. Is there a certain controller or computer that it has to use?
  25. Can you link the rules or give us a better idea of the task and environment the robot will face? From what I've seen of FRC the autonomous portion is only 15 seconds or so at the start of the match. Lidar and gps is overkill for 15 seconds. Dead reckoning will work just as well. I saw this the other day. It has some good information on how mobile autonomous systems work. https://hackernoon.com/ghost-my-plan-to-race-an-autonomous-rc-car-46a4b7f093cd