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Setting up iNav on 250 class racer
Although iNav (iNavFlight) with advanced GPS and navigation support is best suited for larger, GPS equipped drones, there is absolutely no reason not to use it on something smaller like 250 racer. Why? Well, why not? Basic flight mechanics is the same like in Cleanflight or Betaflight. FP-PID is brand new PID controller, not very…
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Three flying weekends with Turnigy Graphene batteries
It is still too early to decide if new Turnigy Graphene are worth the money, but after 3 flying weekends with them I do have some thoughts about them already. They discharge differently than Turnigy Nano-Tech I’m using in parallel. Discharge curve seems to be flatter Voltage drop on high load is much smaller comparing…
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Requested: iNav CLI dump
Because I’ve received few requests to share iNav configuration that allowed performance like showed here and here, below you can find most important parts of my configuration. I’ve removed some parts like AUX, serial configuration, MAG and ACC calibration. They are mostly iNav defaults, no special tweaking was made. I hope this will help.
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iNav: Waypoint Mission
This video was taken few weeks ago during my tests of Waypoint Mission implemented in iNav. Hardware setup: Transporter Q7.6 600mm quadcopter frame SPRacingF3 Acro with BMP085 external barometer Beitian BN-880 (ublox Neo-M8M) 10×4.5″ APC props EMAX GT2218/08 1100KV motors 5000mAh 3S battery Software setup: iNav pre 1.1 Default navigation PIDs Slightly tuned FP-PID, quite…
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Improving cheap radio range
Radio range of my first drone, UDI 829A was pretty pathetic. OK, it was (still is, I only have to finally replace motors) pretty indestructible, quite stable and reasonably priced. But effective radio range as quite short. More less 50 meters. Above that limit strange things started to happen. The reason was pretty simple. Just…
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iNav: RTH with land mission
This video was taken last weekend during tests of latest changes implemented in iNav, as well as new GPS module Beitian BN-880 I shortly described here.Mission plan: Take off in Angle mode, Engage 3D Position Hold Fly away 100m Return to Position Hold Engage Return To Home mode Summary: Beitian BN-880 performed well. Quadcopter returned…
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Battery C rate: do I need a lot of it?
One of the values that describe LiPo batteries used in RC crafts is so called C rating. For example: 3S 1300mAh 45-90C. Or 3S 5000mAh 25-30C. Or 4S 1300mAh 65-95C. S is simple, it tells the voltage. mAh or Ah tell capacity. But what about C rate? According to Wikipedia is can be described as:…
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Hands-on: Turnigy Graphene LiPo batteries
LiPo battery life is hard. Charged, discharged, beaten in a crash, charged, discharged and so on. Because last week I had to utilize few of my old Turnigy Nano-tech LiPos, I’ve decided to try something “better” this time. Turnigy Graphene 1300mAh 3S 65C. Package came today and this is what I got: Box is huge.…
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Magical LiPo tree
Since LiPo batteries are potentially dangerous, they can not be just put into garbage. They have to be properly handled, utilized, before they can be safely thrown out. I will write more on this topic later. Here is only a picture of my magical LiPo tree. Knife, electrical connector, 12V halogen lightbulb, some sand, a flowerpot…