@ -77,7 +77,45 @@ In my case they are measured in degree so the forward pitch angle of $42°$ woul
/images/quad/prop_pitch.jpg, Geprc 3042 pitch in degree visualised Source: www.banggood.com;
lightgalleryend]
TOBE continued...
Now we have the motors and propeller selection finished and estimate the amp drawn through the ESC.
In my case this is 19.8A per motor or 312.64W.
The values of the ESC are also declared typical for each motor. Also the ESC has to work together with the flight controller.
Since [beta flight](https://betaflight.com/) already announced that an F3 chip is getting short on the flash I wanted a F4 board. The f7 boards would also work but I
did not see the benefit compared to the nearly double cost of a FC.
In the end I selected an [HGLRC 20x20mm Micro F4 Flight Controller](https://www.banggood.com/HGLRC-20x20mm-Micro-F4-Flight-Controller-AIO-Betaflight-OSD-5V-BEC-for-XJB-F425-F428-Series-Flytower-p-1203538.html)
with an [28A Blhel_S BB2 2-4S 4 in 1 ESC](https://www.banggood.com/20x20mm-28A-BLheli_S-BB2-2-4S-4-In-1-ESC-Support-Dshot600-for-XJB-F428-F328-Series-Flytower-p-1203121.html)
Last but essential components are the video transmitter equipment. There are 2 aspect ratio available 4:3 and 16:9.
The choice is just based on preferences since you can also change the lens on the micro cameras and with it the field of view.
I personally like 16:9 since its a more natural view for the eye. Therefor I selected a [runcam Sparrow WDR 700TVL](https://www.banggood.com/RunCam-Micro-Sparrow-WDR-700TVL-13-CMOS-2_1mm-FOV-145-Degree-169-FPV-Camera-NTSCPAL-Switchable-p-1198579.html)
As you can image the video is not even close to hd or even hd ready. The video is transmitted analog like the old analog satellite tv with round about
576i@25fps for PAL and 480i@29.97fps for NTSC.
This is the case since the video shall be with minimal to no delay transmitted, which is not typical for digital video signals.
Therefore these quads are using typical analog video.
For sending the captured video signal I chose a [TBS Unify Pro HV Race FPV Video Sender SMA - Team Blacksheep](https://www.team-blacksheep.com/products/prod:unify_pro_hv_race)
since this does less interference on other channels which Is required if you flying together with your friends. With the china VTX there is a high chance that they have interference if
he quad gets powered on.
[lightgallery
/images/quad/vtx.jpg,TBS Unify Pro HV Race FPV Video Sender SMA Source: https://www.banggood.com/
lightgalleryend]
Lastly I also added a beeper and LED's since otherwise it might be hard to find after a crash in high grass.
- [LED and beeper](https://www.banggood.com/Super-Mini-1_38g-WS2812-Colorful-LED-with-5V-Active-Alarm-Buzzer-Support-Cleanflight-Betaflight-p-1131891.html?rmmds=myorder&cur_warehouse=CN)
Schoenberger, Philipp
6 years ago
