Category Archives: Blogs On Kozeniauskas.com

DJI NAZA not arming with Turnigy Plush ESC(Fix/solution)

I decided to get myself DJI NAZA for my quadcopter as almost everyone was raving about it.
I have self made MWC running Multiwii 2.0 on my quadcopter witch is running ok but I wanted better altitude hold and the videos in youtube show that NAZA is very good in doing that.

Received NAZA this week connected it to existing setup, connected to PC to set it up properly.
After plugging in the battery NAZA does selftest and the light goes off. When I try to arm the motors nothing is happening. I though that I was doing  something wrong so checked everything again couple times. Still the same… Motors would not arm.
So I started reading through rcgroups and apparently it happens with some ESC .
http://www.rcgroups.com/forums/showthread.php?t=1610564
There is even a list created which ESCs work and which don’t.
https://docs.google.com/spreadsheet/ccc?key=0Au16aK6Q-0p0dENkdXVGVHJLRm5fRTFQdjBZbUhxZ3c&pli=1#gid=0

Unfortunately I am using Turnigy Plush 30A and these are the ones that most of the time are working.
On the label mine are ver 3.1 I’ve bought them sometime in July 2011.

Continue reading DJI NAZA not arming with Turnigy Plush ESC(Fix/solution)

Simple 22w amplifier

Hello, I decided to rebuild mine 22w amplifier that I burned (had no radiator 😀 so the TDA just fried)

The main pieces you need:

R1 – 39 kΩ
C1, C2 – 10 µF × 25 V (electrolyte)
C3 – 100 µF × 25 V (electrolyte)
C4 – 47 µF × 25 V (electrolyte)
C5 – 0,1 µF × 25 V (ceramic)
C6 – 2200 µF × 25 V (electrolyte)
U1 – Microscheme TDA1554
Input power: 6–18 V.

The blueprints:


Here is the beginning:

I mounted the radiator (not permanently) and the TDA