Single Wire Soft Serial
Disclaimer:
Software Serial is not recommended for RC control links and should not be used to connect serial receivers.
Software Serial List of compatible pins
Not for public viewing yet.
List of compatible pins.
CLI commands to free up PWM 5 and PWM 6:
resource MOTOR 5 NONE
resource MOTOR 6 NONE
CLI commands to assign softserial:
resource serial_tx 11 <pin>
resource serial_tx 12 <pin>
NOTE:
- The OK means it is compatible, and does not warrant it will work when it is configured as a part of a complete system.
OMNIBUS(F3) (by @jflyper)
| Pin | Label | S.Audio | Tramp | S.Port | Note |
|---|---|---|---|---|---|
| A8 | LED strip | NG | NG | NG | |
| B4 | PPM (*1) | OK | ? | OK | When PPM not in use |
| B6 | PWM8/SCL | OK | OK | OK | I2C must be de-configured? Need furthe testing. |
| B7 | PWM7/SDA | OK | ? | ? | Ditto |
@olexs: B07 (PWM7/SDA) works with S.Audio on 3.2, no extra config needed (I2C resources aren't mapped per default).
OMNIBUSF4 (by @jflyper)
| Pin | Label | S.Audio | Tramp | S.Port | Note |
|---|---|---|---|---|---|
| A1 | PWM5 | OK | ? | OK | |
| A8 | PWM6 | OK | OK | ? | Tramp report by @llambkin |
| B14 | PPM | OK | ? | ? | |
| B15 | CH2 | OK | ? | ? | |
| C8 | CH5 | OK | ? | ? | |
| C9 | CH6 | OK | ? | ? |
OMNIBUSF4SD (by @jflyper, @antonig)
| Pin | Label | S.Audio | Tramp | S.Port | Note |
|---|---|---|---|---|---|
| A9 | TX1 | OK | ? | OK @stsa64 | @stsa64: Smartport does not work if running Tramp on A8 (PWM6) via softserial (timer conflict??) |
| A1 | PWM5 | OK @basdelfos | OK @stsa64 | OK @basdelfos | |
| A8 | PWM6 | OK | OK | OK | |
| B14 | PPM | ? | ? | ? | |
| B15 | CH2 | ? | ? | ? | |
| C8 | CH5 | ? | ? | ? | |
| C9 | CH6 | ? | ? | ? |
SPRACINGF3 (by @jflyper)
| Pin | Label | S.Audio | Tramp | S.Port | Notes |
|---|---|---|---|---|---|
| A0 | IO_1[3] PPM/CH1 | OK | ? | ? | When PPM is not in use |
| A1 | IO_1[4] CH2 | OK | ? | ? | When PPM is not in use |
| B4 | IO_1[5] CH5 | OK | OK | ? | |
| B5 | IO_1[6] CH6 | OK | ? | ? | |
| A8 | IO_1[7] LED strip | OK | ? | ? | |
| B0 | IO_2[5] CH7 | OK | ? | ? | |
| B1 | IO_2[6] CH8 | OK | ? | ? | |
| B8 | M5 | NG | ? | NG | TIM4 crash with M3&M4 |
| B9 | M6 | NG | ? | ? | TIM4 crash with M3&M4 |
| A2 | M7 | OK | OK | ? | |
| A3 | M8 | OK | OK | ? |
Note: Some reports CH1 and CH2 not working: (https://github.com/betaflight/betaflight/issues/2532#issuecomment-284669276)
SPRACINGF3EVO
| Pin | Label | S.Audio | Tramp | S.Port | Notes |
|---|---|---|---|---|---|
| A8 | LED strip | NG | NG | ? | @pafleraf |
| B1 | M8 | OK | OK | OK | @pafleraf |
Note: Soft Serial for this target is disabled in bf 3.1.7. However, it works with bf 3.2.0 nightly as of today (2017-05-13)
REVOLT
| Pin | Label | S.Audio | Tramp | S.Port | Notes |
|---|---|---|---|---|---|
| B6 | LED | ? | ? | NG | @alenl2; Need further testing |
| C1 | CRNT | ? | ? | NG | @alenl2; No timer? |
| A9 | TX1 | ? | ? | NG | @alenl2; Timer conflict? (need checking) |
| A10 | RX1 | ? | ? | NG | @alenl2; Timer conflict? (need checking) |
| B10 | TX3 | ? | ? | NG | @alenl2; Timer conflict? (need checking) |
| B11 | RX3 | ? | ? | NG | @alenl2; Timer conflict? (need checking) |
| C6 | TX6 | ? | ? | OK | @alenl2 |
| C7 | RX6 | ? | ? | OK | @alenl2 |
KISS (KISSFC)
| Pin | Label | S.Audio | Tramp | S.Port | Notes |
|---|---|---|---|---|---|
| A13 | PWM5 | OK (@alenl2) | ? | NG @basdelfos/@alenl2 | |
| A02 | PITCH | NG (@alenl2) | ? | OK @basdelfos/@alenl2 | |
| A15 | ROLL | ? | ? | OK | @basdelfos |
BLUEJAYF4
| Pin | Label | S.Audio | Tramp | S.Port | Notes |
|---|---|---|---|---|---|
| B00 | ? | NG (v1) | ? | NG | staryk@rcg |
| B01 | ? | NG (v1) | ? | NG | staryk@rcg |
IRCFUSIONF3
| Pin | Label | S.Audio | Tramp | S.Port | Notes |
|---|---|---|---|---|---|
| A00 | PPM | ? | ? | OK | When PPM is not in use |
BETAFLIGHTF3
| Pin | Label | S.Audio | Tramp | S.Port | Notes |
|---|---|---|---|---|---|
| B01 | Soft Serial TX1 | OK (v1) | ? | ? | @iwarp |
| A02 | Soft Serial TX2 | NG (v1) | ? | ? | @iwarp |
| B07 | PPM | OK (v1) | ? | ? | @iwarp |
http://i.imgur.com/Mh41SmG.jpg
Note (2017-07-27) by @jflyper: BETAFLIGHTF3 had a timer assignment problem with pre-3.2 firmware. It is fixed with 3.2, and PB01 and A02 should work as software serial --- need to be verified (29/10/17) by @iwarp B01 confirmed working on 3.2.1