RunCam Split very late pseudo review: it’s not good

Yes, I know it’s few months too late. And it’s not really a review but rather, since I was never able to use it or I describe my friends experience with RunCam Split.

I own RunCam Split. I own it for like 2 months now, and it’s still in a box. Never connected, never really used. And in the meantime, I’ve build 2 mini quads are rebuild third. Why is that? Is there something wrong with RunCam Split that I’m not using it anywhere? And not planning to? Let’s be quick about it:

RunCam Split camera module and PCB

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Tutorial: replace battery in RunCam HD

My RunCam HD died after 5 months in a drawer. Reason: battery destroyed. It had enough energy for approx. 2 seconds of operation. So I had a choice: buy original battery from RunCam for $9.99 plus shipment, or fix it DIY style. I’ve choces the second option.

Luckily for us, RunCam used generic 803035 LiPo 1S, 3,7V battery that can be purchased in specialized stores. I’ve paid around $6 for mine, but if you look hard enough, you should find something even cheaper. Also, luckily (or not) there is a battery plug: 2 pin JST 1.25mm.

Runcam HD inside

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3D Printed 35deg camera stand for Runcam HD / Mobius

I have no idea how I was able to build drones before I've bought my 3D printer… I before I've learned basics of 3D design. So, today I present you upgraded version of my Runcam HD / Mobius camera mount I've designed few months ago.

Changes:

  • tilt angle increased from 25 to 35 degrees
  • allows to use wider zip tie for mounting

3D printed camera stand for RuncamHD Mobius 2

3D printed camera stand for RuncamHD Mobius 3

3D printed camera stand for RuncamHD Mobius

STL file can be downloaded from Thingieverse

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Reptile X4R 220 – maiden flight

Last week I’ve been finally able to put my new mini quad into the air. It’s based on Reptile XR4 220 frame. Looks like I’ve succeeded with my build this time, since there were no major problems. Few minor, yes, but no major.

My Reptile X4R 220 mini quad has following specification:

  • Motors: EMAX RS2205 2300KV
  • ESC: FVT LettleBee 20A
  • Propellers: DAL 5040
  • Flight controller: SPRacingF3 clone running INAV with asynchronous gyroscope and accelerometer. I’ve already written few words about async gyro updates here
  • Radio RC link: ***FrSky X4R-SB***
  • Camera: Runcam Swift
  • VTX: TS5823S 200mW
  • Matek PDB-XT60
  • Micro MinimOSD with MW-OSD 1.5

Here is short, uncut, video from maiden flight:

The only problem I’ve encountered, was with OSD. It stops overlaying data on aggressive maneuvers for a second and then OSD comes back again. Probably it’s because of voltage drop/noise. MAX7456 is extremely voltage quality sensitive. I will try to fix that with additional capacitor on 5V line this weekend.

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3D Printed RunCam HD / Mobius camera mount for Reptile X4R 220

After I finished my new Reptile X4R 220 racing mini-quad, I've realized, that there is no way I will be able to mount my RunCam HD on it. Comparing to ZMR250, 220 frame is just small. On a top plate there is enough room to fit battery, RC and FPV antennas and all what is left is around 35mm in the front. Plus, with angled FPV camera, there just no place for RunCam HD/Mobius form factor cameras. So, some time with 123D Design and few hours of printing, and here we are: 25 degrees mount for RunCam HD and Mobius camera specially designed for Reptile X4R 220 frame

25deg Runcam HC and Mobius Camera mount for Reptile X4R 220

This mount has 25 degrees inclination, will fit both RunCam HD and Mobius (not sure about RunCam HD2…) and its base is only 42x32mm. So it can be installed on small frames like 220. But, it will also fit bigger. No problems here.

25deg Runcam HC and Mobius Camera mount for Reptile X4R 220

The best way to install it on a frame is to use either zip ties or double sided velcro straps. There is a slot for 20mm wide velcro straps. To make it better, use 3M Dual Lock between.

To securely install camera also use 3M Dual Lock and use a velcro strap too. That should keep everything in place just fine.

3D Printed 25deg Runcam HC and Mobius Camera mount for Reptile X4R 220

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Hands on: RunCam Swift FPV Camera

Life of my previous FPV camera was rather short. RunCam PZ0420M died after a crash only few weeks after purchase. Well, it happens. As my next camera I’ve chosen RunCam Swift for following reasons: I like RunCam, Swift is small and it has double mount! 50 dollars and 4 weeks later it arrived.

RunCam Swift

RunCam Swift FPV Camera

RunCam Swift FPV Camera

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Reptile 500 PID values for Cleanflight

After few test flights I have to admit, that PID values for Reptile 500 quadcopter frame I posted here are too aggressive. Way too aggressive. Specially D coefficient was too big and was main source of high frequency vibrations visible as camera jello. Reducing P and D, and slight increase of I improved quadcopter behavior. Current settings:

  • Raptile 500 frame, EMAX GT2218/09 motors, APC 10×4.5MR propellers,
  • Flip32+,
  • Cleanflight 1.10,
  • PID controller: LuxFloat,
  • Looptime: 2000
  • PIDs:
    • Roll (P / I / D): 1.8 / 0.07 / 30
    • Pitch (P / I / D): 1.8 / 0.07 / 30
    • Yaw (P / I / D): 2.5 / 0.1 / 0

Video has been processed with slight software camera stabilization. Standard settings from iMovie.

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Quick Review: FPV 1/4 CMOS HD Color Camera Module 600TVL 120 Degree Wide Angle

Usually I have absolutely nothing against buying cheap stuff from China. OK, maybe quality will not always be as expected, but usually it’s not worth paying extra 100% in price for 10% of extra quality. Usually, with some exceptions. Exception number one are mechanical parts like motors. Exception number two are FPV cameras. And the second one is new one. I’ve put it in place after using FPV 1/4 CMOS HD Color Camera Module 600TVL 120 Degree Wide Angle from Banggood for one month.

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