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  1. wafflejock

    DIY Drone RC control

    Hey yup I think opentx is probably the way to go really if you want something already close to "pro grade". FrSky helped to develop opentx and it's used on their transmitters also the new T16 like "jumper t16" already run this firmware and have 4 in 1 transmitter modules that include nrf...
  2. wafflejock

    DIY Drone RC control

    Awesome! I'm a fan of the nrf modules and Arduino I used them to make my own esk8 transmitter/receiver that works with a standard ESC pwm signal. Essentially you can use the Servo library to generate the pulsed signal for you and use the writeMicroseconds call to set the pulse width. I...
  3. wafflejock

    Broken MJX B3 Enigine

    You could take the bell off of the shaft and access the bearings to clean or replace but for cheap motors like this better off just replacing
  4. wafflejock

    WLTOYS V686 Not able to fly, just slumps forward

    On the side that doesn't lift swap the props (swap black and black or red and red) the colors don't appear to correspond to the direction of the prop when looking at this vid, so even if colors appear in right place can have them spinning wrong direction: assuming you are talking about this...
  5. wafflejock

    i need help

    Receiver is likely dead it just needs 3.3V and GND hooked up so either it isn't getting that from FC cause of blown voltage regulator or receiver was previously damaged from overvolting. These spektrum satellite receivers go into binding mode automatically if no bound transmitter is found in...
  6. wafflejock

    I fixed my video issue...

    Hah well I can't say I'm not a little angry that you're such a better pilot than me and your video was super messed up probably :D thanks for sharing though crazy the mistakes I still make too. Would think you get smarter and you do less dumb things, but no you just realize how many dumb things...
  7. wafflejock

    New to forum, new to "real" drones, looking to increase range.

    Yah answer like in this vid is it depends: Basically if you are flying inside or around a lot of metal things that will create multipath (bouncing of your signal) then the polarization can help eliminate noise you are basically making for yourself. If you are flying through a lot of brush or...
  8. wafflejock

    New to forum, new to "real" drones, looking to increase range.

    Not the one I was originally thinking of but element14 did one too that looks pretty good here
  9. wafflejock

    New to forum, new to "real" drones, looking to increase range.

    There are people out there who make "DIY" antenna if you want to know more about what effects the signal and how would suggest checking that out. Also just lots of cool stuff to see :D there's a YouTube vid of some folks who built an antenna for connecting to NASA satellites I think glonass...
  10. wafflejock

    New to forum, new to "real" drones, looking to increase range.

    I actually thought about mentioning yagi when we were talking antenna there but haven't ever used them for fpv stuff myself. I remember using some sort of yagi antennae for old school analog TV on roof tops and have read they are good for long range directional receiving (and I think...
  11. wafflejock

    NEWBIE! Need a little throttle help...

    Glad to hear you figured it out. After watching some vids and reading about 4.0 to 4.1 upgrade saw some things about fixing runaways in there that started to make me suspect you had some FC that suffered that problem with 4.0. super glad to hear you got it sorted out though can always activate...
  12. wafflejock

    NEWBIE! Need a little throttle help...

    The ESCs get some throttle signal and they do all the wizardry to spin the motors up to or down to that throttle speed from whatever the current speed is. The ESCs basically just use MOSFETs or FETs for short that are basically electrically controlled switches or "gates" and when the gate is...
  13. wafflejock

    Helimax Form 500

    There are a lot faster guides but JB is very thorough.
  14. wafflejock

    NEWBIE! Need a little throttle help...

    Motors are dumb devices really (just wires and magnets so nothing to be calibrated there really). That sounds like some pretty crazy behavior though. What Betaflight version are you using now? It sounds like the FC is giving bad control to the ESCs if the ground testing works as expected but...
  15. wafflejock

    Helimax Form 500

    If you have the cash/initiative would suggest doing one of uav futures less than $100 builds or build a 3" size quad first so it isn't crazy expensive and can learn all the pieces then will know what to do to diagnose/replace things on this one.
  16. wafflejock

    Helimax Form 500

    Basically any Betaflight compatible FC would work but couple things to figure out first. 1. what kind of receiver is in there? Does it use sbus or pwm or some other standardish protocol to send signals to existing FC (basically can you find the receiver module documentation). If not then...
  17. wafflejock

    Controller lock

    For the most part the toy grade quads will come with a receiver on the quad that is setup to "autobind" where it falls back into "binding mode" when it starts up if no currently bound transmitter is sending it signals (isn't on or isn't already bound). Generally they will flash an LED or give...
  18. wafflejock

    NEWBIE! Need a little throttle help...

    Also the motor control using the motor sliders in the motors tab should work like you're expecting low value = low motor speed but receiver input goes through PID loop and with no control authority it gets into a runaway basically.
  19. wafflejock

    NEWBIE! Need a little throttle help...

    When you are bench testing this is pretty much normal so long as disarm cuts them off you're okay. The vibrations from motors on the bench are adding errors in the gyro data and it has basically no control authority so if you tell it to go with the controller it will continue to try and correct...
  20. wafflejock

    New to forum, new to "real" drones, looking to increase range.

    Oh yah same boat there :D aerodynamics is complicated business and figuring out "optimal" power to weight ratio to get the best flight time is definitely a matter of guess and check with ecalc.ch for me too. I have experience with building my own electric skateboard that required me to get a...
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