1.9 KiB
Receivers (RX)
Parallel PWM
8 channel support, 1 channel per input pin. On some platforms using parallel input will disable the use of serial ports and softserial making it hard to use telemetry or gps features.
PPM (PPM SUM)
12 channels via a single input pin, not as accurate or jitter free as methods that use serial communications.
MultiWii serial protocol (MSP)
Allows you to use MSP commands as the RC input. Only 8 channel support to maintain compatibility with MSP.
Spektrum
12 channels via serial currently supported.
SBUS
16 channels via serial currently supported.
OpenTX configuration
If using OpenTX set the transmitter module to D16 mode and select CH1-16 on the transmitter before binding to allow reception of 16 channels.
OpenTX 2.09, which is shipped on some Taranis X9D Plus transmitters, has a bug - issue:1701. The bug prevents use of all 16 channels. Upgrade to the latest OpenTX version to allow correct reception of all 16 channels, without the fix you are limited to 8 channels regardless of the CH1-16/D16 settings.
SUMD
16 channels via serial currently supported.
SUMH
8 channels via serial currently supported.
Configuration
See the Configuration document some some RX configuration examples.
For Serial RX enable RX_SERIAL and set the serialrx_provider cli setting as follows.
| Serial RX Provider | Value |
|---|---|
| SPEKTRUM1024 | 0 |
| SPEKTRUM2048 | 1 |
| SBUS | 2 |
| SUMD | 3 |
| SUMH | 4 |
PPM/PWM input filtering.
Hardware input filtering can be enabled if you are experiencing interference on the signal sent via your PWM/PPM RX.
Use the input_filtering_mode cli setting to select a mode.
| Value | Meaning |
|---|---|
| 0 | Disabled |
| 1 | Enabled |