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4. Hardware (Basic Elements)

Cyberman edited this page Jan 17, 2018 · 47 revisions

In this section I will only make considerations and suggestions.

(This does not detract that everyone can do as best own belief)

Download schematic to see the overall project


  • To make testing / developing more secure

It's preferable to use breakout boards like these

RED Nano Shield V3 OR BLUE Nano Shield V3 Power Supply 9V 1A

Using the classic breadboard creates a lot of confusion and fake contacts
because there are many wires to connect

  • Best power supply is with linear LM317 regulator (old but strong)

LM317 Power Board
I will try to make schematic if you want make your own LM317 power supply

  • OLED white display with SPI interface

SPI interface have high speed refresh but uses many pin (little sacrifice for performance)
You can use also SSD1306 0.96" 128x64 4 wire SPI interface

1.3" OLED SH1106 128x64 4 wire SPI interface

  • Gimbals stick recycled or new

Old gimbals stick with mechanical Sub Trim
You can reuse the original gimbals of transmitter

You can use a new gimbals without mechaninal Sub Trim
Software will provide basic electronic Sub Trim adjustment

New transmitter gimbals without Sub Trim

  • JR servo extension for cabling gimbal stick, potentiometers, switches

JR Servo Cable Extension
Unfortunately you have to sacrifice but can be reused for final cabling

  • You can reuse original pots and switches of radio transmitter

If you need you can add optional switch for CH5 / CH6 and slide switch for V-MIX function

Standard Pot High Quality Pot Slide Switch 2 Position Switch

  • Push buttons switch for navigation and menu settings

For testing you can use any type of push button
If you want a good functionality is necessary to solder buttons on prototype PCB
and remember to solder 100nF capacitors for every input pin and wires on PCB buttons

"Otherwise you definitely have trouble with the menu"

Short Push button switch Long Push button switch Prototype PCB

Long Push button switch is needed for for the final assembly
It must come out of the transmitter housing


  • Battery pack for power supply all radio transmitter

2S (7.4V) battery pack is enough for a few hours
Lithium 2S with balance cable seems to be preferable

Lithium 2S battery pack LiPo 2S battery pack

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