Low Volts Alarm Mod – Reducing the Volume
If you’re wearing a FPV headset, goggles, or perhaps have a ground station being powered off a lipo battery you’ll want a low volts warning, but not a loud ear-splitting … Read more...
Multirotors
MWOSD – Display RSSI via Spare Radio Channel
Displaying RSSI on the micro MinimOSD can be achieved without adding the extra wire between it and the FrSky D4R II receiver’s signal pin 2 (used in CPPM mode).
It’s … Read more...
FR632 5.8 GHz Diversity Receiver Teardown
Here we take a look inside the FR632 5.8 GHz diversity 32 Channel Auto Scan LCD A/V Receiver obtained from the Hobby King AU Warehouse for just under AUD$75.
Naze32 Lost Model Beeper Piezo – Making it LOUDER!
The Naze32 Flight Controller has a “lost model beeper” output, which looks like this on the schematic diagram:
We can see the beeper output is an open collector transistor, … Read more...
Herding Elephants with a UAV
Park Rangers in Africa are using a DJI Phantom to herd pesky elephants away from farmers crops.
Originally aired on ABC-TV News 24 on Wednesday 20-5-2015.
🙂
Fixing Xiaomi Yi Out of Focus Problem
It appears to be a common problem – the Xiaomi Yi action camera’s lens has been incorrectly preset in the factory.
I’m guessing the Chinese assembly workers set the focus … Read more...
5.8 GHz LNA for FPV Receiver
To increase 5.8 GHz FPV range and minimise receiver dropouts, a broadband microwave LNA (Low Noise Amplifier) is assembled and tested.
Whilst you could use a gain antenna like a … Read more...
Micro Minim OSD Mounting in Blackout Mini H Quad
Micro MinimOSD is a tiny On-Screen Display board that works with the Naze32 flight controller and came from Buzz Hobbies in Perth.
First thing to do was solder up … Read more...
FPV Microphone Preamp v2
Following on from the prototype FPV microphone preamplifier assembled on Veroboard, a double-sided PCB was designed in DipTrace and the gerber files were sent to iTead studio, where 10 … Read more...
Circular Wireless 2.4 GHz Helical Return Loss Sweep
In this video we take a look at performing a return loss sweep on a ‘Heliaxial24’ 2.4 GHz 6½ turn helix antenna from Circular Wireless.
Construction is first … Read more...
Xiaomi Yi – Safe to fly with 2.4 GHz?
The Xiaomi Yi is my first camera that has 2.4 GHz connectivity built in.
Having a number of R/C multirotors all using 2.4 GHz control, I was wondering if the … Read more...
1.2 GHz FPV VRX Connector Modification
Considering the FPV screen has a single 3.5mm A/V input connector, running a pair of common A/V RCA cables for video and audio between the VRX and screen seemed a … Read more...
FPV Quadcopter Racing on the News!
Some of the local boys showing “FPV” (First Person View) mini-quadcopter racing in a carpark environment.
IBCrazy 2.4 GHz Bluebeam Antenna Return Loss Sweep
This video takes a look at performing a return loss sweep on a set of IBCrazy 2.4 GHz Bluebeam Ultra antenna set.
Sweeping is performed using a … Read more...
Mini Quad Receiver Mounting Bracket
Since enclosing the Naze32 FunFly flight controller board within a 3D printed case, it’s been awkward to mount things inside the Blackout Mini H Quad because the Naze32 case … Read more...
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