CoreWing Sirius 2.4G ELRS RF Module to APP Connection
Warning
ELRS firmware only supports Mavlink for communication. Using iNav firmware is not possible for connecting to a ground control station for tuning because it transmits MSP data. mLRS firmware can be used as it supports MSP data transmission.
I. Principle
ELRS uses the MAVLink protocol to implement telemetry functions, establishing a bidirectional communication link between the RC transmitter ⟷ receiver ⟷ aircraft.
Through the Backpack function, the RC transmitter can wirelessly receive telemetry data from the aircraft (GPS, barometric pressure, voltage, current, etc.) and transmit this data back to a mobile app in real-time via Bluetooth, WiFi, or USB-OTG, enabling remote monitoring and data analysis.
II. Equipment Preparation
Flight Controller
- CoreWing F405 WING V2
Wireless Communication Module
- Transmitter: Sirius 2.4G
- Receiver: SkyGuy Nano 2G4 RX
RC Transmitter
- Recommended: RadioMaster TX16S
- Compatible: Other RC transmitters supporting CRSF protocol
III. Specific Operations
3.1 Mavlink Communication Confirmation
For how to set up ELRS Mavlink mode, refer to this article:
3.2 CoreWing APP BLE Connection Setup
- Enter the system menu, click on the "ExpressLRS" script.
- Click "Backpack" settings.
- Click the Backpack option, turn the scroll wheel, set to On.
- Click the Telemetry option, turn the scroll wheel, set to
BLE, restart the RC transmitter after setting to take effect.
- Open CoreWing APP, click the "+" symbol, select Bluetooth connection.
Find "CoreWing-xxxx", click to connect.
After successful connection, enter telemetry view, the information panel will display aircraft information transmitted back by the transmitter (as shown below).
3.3 CoreWing APP WiFi Connection Setup
- Enter the system menu, click on the "ExpressLRS" script.
- Click "Backpack" settings.
- Click the Backpack option, turn the scroll wheel, set to On.
- Click the Telemetry option, turn the scroll wheel, set to WiFi, restart the RC transmitter after setting to take effect.
- Go to the phone's WiFi connection page, find the ExpressLRS TX Backpack 000000 WiFi, click to connect, password is lowercase: expresslrs.
- Open CoreWing APP, click the "+" symbol, select ELRS Backpack connection.
Important
If the current WiFi is not connected to a WiFi starting with ExpressLRS, this prompt will appear.
- After successful connection, enter telemetry view, the information panel will display aircraft information transmitted back by the transmitter (as shown below).
IV. Q&A
Technical Support QR Code
