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Add method to modify VTX baud rate #7

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Add method to modify VTX baud rate #7

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4a88495
test led gif
ligenxxxx Feb 5, 2024
b1b1c83
Update vtx_user_manual.md
ligenxxxx Feb 5, 2024
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Update vtx_user_manual.md
ligenxxxx Feb 5, 2024
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Add method to modify VTX baud rate
ligenxxxx Feb 26, 2024
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delete led_flash.gif
ligenxxxx Feb 26, 2024
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40 changes: 38 additions & 2 deletions docs/vtx_user_manual.md
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Expand Up @@ -19,10 +19,37 @@ The VTX lights up when powered on and goes off when powered off. It will not fla
Working status indicator light.

- Flicker 3x after boot indicates MSP signaling is detected.

- Specific modes are represented with patterns of long (1s) and short (1/4s) pulses, within a 4s timeframe

<img src="https://raw.githubusercontent.com/hd-zero/hdzero-vtx-docs/main/site/img/LED_Patterns.png" style="width:100">
#### Camera Lost

Double short blink

<img src="https://raw.githubusercontent.com/ligenxxxx/hdzero-vtx-docs/led-gif-test/site/img/led_flash_2short_and_pause.gif" style="width:100">

#### Heat Protect

Triple short blink

<img src="https://raw.githubusercontent.com/ligenxxxx/hdzero-vtx-docs/led-gif-test/site/img/led_flash_3short_and_pause.gif" style="width:100">

#### DM6300 Lost

Quadra short blink

<img src="https://raw.githubusercontent.com/ligenxxxx/hdzero-vtx-docs/led-gif-test/site/img/led_flash_4short_and_pause.gif" style="width:100">

#### 0mW Mode

A long blink and a short blink

<img src="https://raw.githubusercontent.com/ligenxxxx/hdzero-vtx-docs/led-gif-test/site/img/led_flash_1long_and_1short_and_pause.gif" style="width:100">

#### Pit Mode

A long blink and double short blink

<img src="https://raw.githubusercontent.com/ligenxxxx/hdzero-vtx-docs/led-gif-test/site/img/led_flash_1long_and_2short_and_pause.gif" style="width:100">

Note the first three in the list, are error cases and are checked ahead of any others, and will be displayed if in force.
This means for example, that if the vtx is in heat protection mode, setting the board to 0mW will not be apparent.
Expand All @@ -40,6 +67,15 @@ Note not all VTXes support keypad.
- VTX TX <=> FC RX
- VTX RX <=> FC TX

### Baud rate

VTX supports two baud rates: 115200 and 230400. The factory default is 115200.
How to switch baud rate:

- Adjust FC's uart to the baud rate you need.
- Power up the Quad. VRX/Goggle will not display the OSD.
- Wait fifteen seconds and then restart the Quad. VTX will update the baud rate and VRX/Goggle will display the OSD.

## OSD setup

### Prerequisition
Expand Down