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2.0
Introduction
General
Features
Getting Started
FAQ
Contributing
Hardware
Wiring
WiFi Adapters
Supported SBC's
Cameras
Displays
Antennas
Audio
Software Setup
Telemetry and OSD
SmartSync
RC Control
General
RC over MAVLink
RC over Serial
Advanced Setup
Bidirectional Telemetry
USB Tethering
WiFi Hotspot
Ethernet Hotspot
Ground Recording
Using only a USB Camera
Using only an IP Camera
Using an IP or USB Camera as second camera
Bandwidth switching
LTE Connection
Ground Power Monitoring
Ground Station Software
QOpen.HD (recommended)
Mission Planner
QGroundControl
Tower
FPV_VR
GStreamer
FishingFanCam
RaspberryPi Camera Viewer
Developer Corner
The Open.HD Ecosystem
Making a Release
Update packages on a Pi
Change packet source on a Pi
Building an Image
Essentials
QOpenhd and custom Mavlink
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WiFi Hotspot
To make it easy to connect a Phone or Tablet to your Ground SBC in order to view the video or change settings or even run your Ground Control software the system allows for a WiFi Hotspot by default.
You can change the way the Hotspot behaves by changing the WIFI_HOTSPOT parameter. It takes the following values:
Value
Description
auto
Automatically selects a WiFi Band and channel that allows for the least amount of interference with the 'main' WiFi reception of the Air SBC
y
Uses the custom Band and Channel settings for manual control
n
Disables the WiFi Hotspot functionality altogether

Default SSID an Password

The default SSID is Open.HD and the default password is wifiopenhd. Both values can be changed by editing the apconfig.txt file in the BOOT partition of the SD card. No settings for this have been exposed yet in the app.

Custom Band and channel settings

When selecting the y option you can set the Band and Channel on which the system starts the WiFi Hotspot.
HOTSPOT_BAND
HOTSPOT_CHANNEL
Value
Description
a
Use the 5,8Ghz WiFi band
g
Use the 2,4Ghz WiFi band
Value
Description
1 to 11
Available channels for the 2,5 GHz g band
36,40,44,48,52,56,60,64
Available channels for the 5,8 GHz a band

Custom Hotspot WiFi power

By reducing the power of the WiFi hotspot, you reduce the range, e.g. how far away from the Ground SBC you can be while still being connected to the WiFi, but you also reduce the interference impact on the main WiFi reception from the Air SBC.
HOTSPOT_TXPOWER
Value
Description
100 to 3100
The transmit power in units of mBm (100 mBm is equal to 1 dBm).
3100 is the maximum available power for the internal WiFi.

Automatic WiFi Hotspot shutdown

If you only use the hotspot for the initial setup it might be helpful if it shuts down after an initial period of time. Allowing yourself time to do any setup and then forgetting about it.
HOTSPOT_TIMEOUT
Value
Description
0
Run the WiFi Hotspot for ever
1 to 3600
The amount of seconds to have the WiFi hotspot active after boot
Advanced Setup - Previous
USB Tethering
Next - Advanced Setup
Ethernet Hotspot
Last modified 1yr ago
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Outline
Default SSID an Password
Custom Band and channel settings
Custom Hotspot WiFi power
Automatic WiFi Hotspot shutdown