ToothFairy 5" Budget Rocket

By tehllama on May 11, 2018

11  349  2

Tooth Fairy - without the precious metals. Target weight of 333g AUW when equipped with an 850mAh 4S battery. This thing is an absolute rocket ship, provided I keep it out of trees.

Spedix IS100 stack is the heart of this build, and also why the budget stayed brilliantly on track - it's possible to build one of these for $165 catching the right sales, which is absolutely insane for how good this performs.

I would recommend moving to NK2204 or newest generation Hyperlite 2205's, and soldering in an AXII Antenna onto the Spedix VTX if you're looking to make this a serious racing build, but those are all really minor adjustments. Similarly, if you can find the IS100 stack base (or want to run the HGLRC F440), the HGLRC or Aomway TX004 are great choices paired with an XSR-E or R-XSR Receiver, allowing you full smart audio control via LUA scripts.
The Spedix IS100 DOES require you to solder bridge in four spots if you're using this configuration (run SBUS to Inverted RX1, run 5V to RX Input Voltage, run 5V to the VTX output, and I recommend running VBAT to the camera) - with that all sorted, it's great stuff.



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Abonacci   Jun 25, 2018  

Hey wondering if you could help me . I'm having major trouble getting signal from my rxsr to recognize in bf on this board. Is rx1 the reciever port on the top picture ? it's not labeled on my board.  And question 2 is if I'm running my vtx/camera off the main wire lead pads and not the supplied plugs, is there still any need to jump those 2 v select pads ? Thanks again !

tehllama   Jun 25, 2018 

That image is off - the RX1 JST 3-pin comes out the 'left' side of the quad - but the first time I wired up my receiver I had the GND and SIGNAL pins backwards - it still powers up, binds, and does telemetry, but doesn't show up to the FC or do LUA scripts right. I'd check if that's the case.
If that is the solution - for posterity's sake, do let me know (here: ).
Good luck!

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