2014-05-14 10:37:21 -07:00
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# Receivers (RX)
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## Parallel PWM
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8 channel support, 1 channel per input pin. On some platforms using parallel input will disable the use of serial ports
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and softserial making it hard to use telemetry or gps features.
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## PPM (PPM SUM)
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12 channels via a single input pin, not as accurate or jitter free as methods that use serial communications.
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## MultiWii serial protocol (MSP)
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Allows you to use MSP commands as the RC input. Only 8 channel support to maintain compatibility with MSP.
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## Spektrum
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12 channels via serial currently supported.
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## SUMD
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8 channels supported currently, 12 or more is technically possible.
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## SBUS
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12 channels via serial supported currently.
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2014-07-30 13:58:20 -07:00
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### Configuration
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See the Configuration document some some RX configuration examples.
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#### PPM/PWM input filtering.
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Hardware input filtering can be enabled if you are experiencing interference on the signal sent via your PWM/PPM RX.
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Use the `input_filtering_mode` cli command to select a mode.
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| Value | Meaning |
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| ----- | --------- |
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| 0 | Disabled |
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| 1 | Enabled |
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2014-05-14 10:37:21 -07:00
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