User guide 1.8

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User Guide - Index

GUI - controls

GUI - configuration options

GUI - configurable screen layouts

GUI - FC emulator

OSD - accessing the built in OSD menu

OSD - additional configuration settings

LINKS - helpful FPV community reference info

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GUI - controls

Controls and communication

Comm port

Select the communications port for the OSD

Baud Rate

The default baudrate is normally 115200

Use 57600 for Mavlink based systems such as Ardupilot/APM/PX4

Passthrough

If connecting through a supporting FC, enable this

Select the appropriate UART the OSD is connected to

FONT Tools

Edit Font

Editor for currently loaded font file

Write Font

Uploads fontfile from the GUI into the OSD

Load Font

Browse for an alternative font file to load into the GUI

OSD Controls

Read

Reads values from OSD into the GUI (including screen layouts)

Write

Updates the OSD with values set in the GUI (including screen layouts)

Default

Resets the board to OSD default settings

Restart

Restarts the OSD - sometimes required after saving changes

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GUI - configuration options

Voltage

Voltage source – select the source of voltage – from FC or direct to OSD

Auto Detect – Use battery cell count – this uses configured fixed cell count and alarm values for the battery state gauge and alarms.

Auto Detect – Autodetect cell count / alarm – this autodetects the number of cells and determines alarm voltage based upon the autodetect cell alarm voltage.

Voltage adjust - use this to adjust the displayed voltage to match the actual battery voltage. Note if voltage is taken from the flight controller this adjustment is not applicable.

Voltage alarm - if not using autodetect, set this to the voltage at which you require the battery voltage to start to flash.

Amperage

Amperage – direct connect - select this for Amperage values from sensor connected directly to OSD.

Amperage – use FC - select this for Amperage values from FC.

Amperage – use virtual - select this to use a software estimation of calibrated current draw against throttle position.

mAh Alarm - use this to set alarm warning for bat capacity. Zero is disabled

Amp Alarm - use this to set alarm warning for Current draw. Zero is disabled

!!NOTE !! - remember to select 5v reference if using direct Amperage

!! NOTE !! See guide for how to calibrate

RSSI

RSSI source – direct analog – use analogue voltage connected to OSD.

RSSI source – direct RSSI – use PWM RX signal connected to OSD.

RSSI source – from FC – use RSSI value from FC.

RSSI source – RC channel – use RX channel from FC.

RSSI channel – channel when using source = RC channel.

RSSI alarm - set this to the value at which you require the RSSI value to start to flash

Min - minimum value with TX turned off.

Max - maximum value with TX turned on.

!!NOTE !! - remember to select 5v reference if using direct analog RSSI

!! NOTE !! See guide for how to calibrate

Display Callsign

Disabled - do not show callsign

Show permanently - always on when enabled in screen layout.

Display every 4 seconds every minute - when enabledin screen layout.

Reference Voltage

You must select this if you wish to use > 4s

You must select this if you wish to use HW current sensor or Analogue RSSI

!!NOTE!! This requires a smooth power supply to the OSD when enabled

Other

Video signal - select NTSC or PAL to match your Camera

Transmitter type – select transmitter channel ordering for APM/PX4/MAVLINK

Mavlink system id – must match id of FC. Default is 1

Test alarms – enable/disable prominent alalrm messages such as “Low Voltage”

Throttle display type - shows PWM throttle value or %

Vario indicator size – single character or multiple rows for increased resolution

Metric or Imperial for units of display and measurements

Transmitter reverse – channel reversing if needed for APM/PX4/MAVLINK

Battery Health icon - shows static or remaining capacity battery icon

Statistics – show statistics for full flight or since armed

Map mode – display aircraft, home or both positions as a map relative to launch

Analog sensor type – 1.1v is more accurate, but mandatory to use 5v for > 4s or if using direct analog RSSI or current sensors

Audio vario deadband – if not zero, creates an area of no sound around horizontal flight

Audio vario throttle switch – if throttle is above this value, audio vario is suppressed as under power. 1000 always off, 2000 always on

GPS

Display type - enables masking of major GPS digits with false values. Replace these with co-ordinates of the area to find downed aircraft

Fixedwing BARO/ALT - enables use of BARO and MAG data instead of GPS. GPS is default and previously always used for OSD

LAYOUT

OSD screen switch - choose to enable screen switching by FC OSD switch function (2 layouts) or RC channel (3 layouts)

RC channel – channel used for Screen switch if enabled

HUD

Sidebar height – adjust height of HUD sidebars

Sidebar width – adjust separation of sidebars

Alarms

Setting to 0 disables alarm

Distance Alarm - use this to set alarm warning for max distance

Altitude Alarm - use this to set alarm warning for max altitude

Speed Alarm - use this to set alarm warning for max speed

Timer Alarm - use this to set alarm warning for timer (in minutes)

VTX

Adjust VTX values for supported FC

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GUI - configurable screen layouts

Understanding the concept of how it works

Any 3 can be uploaded to OSD

Use the layout editor to create a layout that is available to the OSD to use

Fields can be enabled or disabled

Fields can be moved around

The layout defines the fields available to view

GUI tab switches or OSD menu can be used to optionally turn on/off fields available. Turning off disables field on OSD layouts irrespective of the layout settings

Controls and what they do

UP/DOWN/LEFT/RIGHT

Click buttons to move the selected field

TOGGLE

Enables/disables the field on the selected layout. Current status displayed

TX LOW/MID/HIGH channel control

Will be enabled when using RC channel enabled in Layout tab

Layout assigned to Low / Mid High switch setting

Layouts can be changed using drop down arrow

Approximate simulated layout can be displayed by selecting the radio button associated with the TX switch position

OSD SWITCH control

Will be enabled when using FC OSW SW enabled in Layout tab

Layout assigned to normal / OSD Switch setting

Layouts can be changed using drop down arrow

Approximate simulated layout can be displayed by selecting the radio button associated with the TX switch position

WRITE to OSD

Click this to upload to layouts and settings to OSD

SAVE Layout

Click this to save any edits made to HUD layouts

SAVE settings to file

Saves the HUD layouts to file for backup

LOAD settings from file

Loads HUD layouts from a previously backed up file

Enable SWITCHES

Click this to set all display switches on - useful when OSD disconnected and to assist in planning layouts

NOTE - when complete, select EXIT to avoid saving switch settings

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GUI - FC emulator

Use this to simulate a MSP class flight controller connected to your OSD (Betaflight, Cleanflight, iNav etc.)

Primarily used for OSD development

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OSD - accessing the built in OSD menu

To access the inbuilt OSD menu, with the FC DISARMED:

THROTTLE MIDDLE

YAW RIGHT

PITCH FULL

To navigate the OSD:

PITCH/ROLL sticks are used to navigate

YAW stick is used to adjust / change values

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OSD - additional configuration settings

config.h
Further settings are available in config.h due to :

memory constraints to leave enabled permanently

rarely used

not yet moved to the GUI

def.h Advanced settings are available in def.h.

Primarily for developers

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LINKS - helpful FPV community reference info

How to - [video guide to the OSD menu from DEET] (http://youtu.be/pd_PXnG_PkI)

How to - [connecting to CLEANFLIGHT FC from Tr3TopFlyer] (https://drive.google.com/file/d/0B2MInRUrbpWxUjdmdXJIWkRZY0k/view?usp=sharing)

How to - [flash the MW OSD firmware to your OSD] (https://github.com/ShikOfTheRa/scarab-osd/blob/master/OTHER/DOCUMENTATION/FirmwareFlashing.md)

How to - [alternative way to access frsky via telemtry from Jindalee10368] (http://vk4ghz.com/mwosd-display-rssi-via-spare-radio-channel/)