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Add SysId configuration, #408

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merged 4 commits into from
Oct 26, 2024
Merged

Add SysId configuration, #408

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66fcabd
Add SysId configuration, requires ExpressLRS/ExpressLRS#2891
LupusTheCanine Aug 18, 2024
5c68c13
Merge branch 'master' into master
LupusTheCanine Aug 31, 2024
753572a
Update wordlist.txt
LupusTheCanine Sep 12, 2024
102921c
Merge branch 'master' into master
maybenikhil Oct 24, 2024
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13 changes: 11 additions & 2 deletions docs/software/mavlink.md
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Expand Up @@ -49,6 +49,16 @@ The minimum versions to use this feature are:

1. Configure your usual power, packet rate, etc. The telemetry ratio will be preset to 1:2 (and cannot be changed while in MAVLink mode).

1. (Optional) Configure Source and Target SysIDs

1. Power-cycle the receiver

2. Go to `Other Devices` and select your receiver

3. Set `Target SysID` to the vehicle SysID

4. Set `Source SysID` to preferred GCS SysID

1. Wire the RX to a free UART on your flight controller that is suitable for TLM + RC. A DMA-capable UART is recommended.


Expand Down Expand Up @@ -105,10 +115,9 @@ When set to MAVLink mode, ELRS changes the allocation of uplink and downlink fra
- Uplink frames from TX to RX continue to include stick/switch data in the standard ELRS format
- Uplink frames are opportunistically replaced with MAVLink data from your GCS to your aircraft, which is limited to a maximum of 50% of the link's upstream bandwidth. In general, MAVLink from GCS to the aircraft consumes very little bandwidth, due to it being mainly GCS heartbeats.


- Downlink telemetry frames from RX to TX are completely replaced by MAVLink data
- Your TX converts the MAVLink telemetry into standard CRSF format which is understood by EdgeTX

### Stubborn Sender

ELRS uses its stubborn telemetry sender system for MAVLink messages - this system retries packets which weren't delivered, keeping MAVLink link quality high over longer distances and/or with interference.
ELRS uses its stubborn telemetry sender system for MAVLink messages - this system retries packets which weren't delivered, keeping MAVLink link quality high over longer distances and/or with interference.
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