Futaba¶
Futaba radios connect over S.BUS2, which carries both control and telemetry on one wire.
Wiring¶
Connect the flight controller's receiver port (often labelled SBUS) to the receiver's S.BUS2 port with a servo lead.
Flight controller¶
- Configuration tab: set the port to Serial Rx. Save and reboot.
- Receiver tab: protocol Futaba S.BUS2 (with Inverted and Half-Duplex on), channel preset Futaba / Hitec, and telemetry enabled. Save and reboot.
Radio¶
- Linkage Menu → System Type: a protocol with telemetry, such as T-FHSS or FASSTest 18CH, with telemetry on.
- Linkage Menu → Sensor: register the sensors in these slots. The slot numbers and sensor types must match exactly, or the readings come out wrong.
| Slot | Sensor type | Carries |
|---|---|---|
| 1 | Voltage | Battery voltage and average cell voltage |
| 3 | Current (SBS-01C) | Current, mAh used, voltage |
| 6 | RPM | Headspeed |
| 7 | Temperature (SBS-01T) | Flight controller temperature |
| 8 | Kontronik ESC | ESC telemetry: voltage, current, mAh, RPM, temperatures, BEC current, throttle |
Then add the values you want to your telemetry screen.