MULTI-Module Protocol Details

You'll find below a detailed description of every supported protocols sorted by RF modules.

Legend:

Extended limits supported: -125%..+125% can be used and will be transmitted. Otherwise the default is -100%..+100% only.
Autobind protocol: you do not need to press the bind button at power up to bind, this is done automatically.

The AETR mentionned here for all protocols depends on the TX settings compilation option set in _Config.h.

A7105 RF Module

FLYSKY

Extended limits supported

CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8
A	E	T	R	CH5	CH6	CH7	CH8

Note that the RX ouput will be AETR.

Sub_protocol V9X9

CH5	CH6	CH7	CH8
FLIP	LIGHT	PICTURE	VIDEO

Sub_protocol V6X6

CH5	CH6	CH7	CH8	CH9	CH10	CH11	CH12
FLIP	LIGHT	PICTURE	VIDEO	HEADLESS	RTH	XCAL	YCAL

Sub_protocol V912

CH5	CH6
BTMBTN	TOPBTN

HUBSAN

Models: Hubsan H102D, H107/L/C/D and Hubsan H107P/C+/D+

Autobind protocol

Telemetry enabled for battery voltage and TX RSSI

Option=vTX frequency (H107D) 5645 - 5900 MHz

CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8	CH9
A	E	T	R	FLIP	LIGHT	PICTURE	VIDEO	HEADLESS

CC2500 RF Module

FRSKYV = FrSky 1 way

Models: FrSky receivers V8R4, V8R7 and V8FR.

Extended limits supported

Option=fine frequency tuning. This value is different for each board. To determine the option value, find the two limits where the RX loses connection then set the option value to half way between them. If you have a 4in1 V2 board the value is around 40.

CH1	CH2	CH3	CH4
CH1	CH2	CH3	CH4

FRSKYD

Models: FrSky receivers D4R and D8R. DIY RX-F801 and RX-F802 receivers.

Extended limits supported

Telemetry enabled for A0, A1, RSSI, TSSI and Hub

Option=fine frequency tuning. This value is different for each board. To determine the option value, find the two limits where the RX loses connection then set the option value to half way between them. If you have a 4in1 V2 board the value is around 40.

CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8
CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8

FRSKYX

Models: FrSky receivers X4R, X6R and X8R.

Extended limits supported

Telemetry enabled for A1 (RxBatt), A2, RSSI, TSSI and Hub

Option=fine frequency tuning. This value is different for each board. To determine the option value, find the two limits where the RX loses connection then set the option value to half way between them. If you have a 4in1 V2 board the value is around 40.

Sub_protocol CH_16

CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8	CH9	CH10	CH11	CH12	CH13	CH14	CH15	CH16
CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8	CH9	CH10	CH11	CH12	CH13	CH14	CH15	CH16

Sub_protocol CH_8

CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8
CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8

SFHSS

Models: Futaba RXs and XK models.

Option=fine frequency tuning. This value is different for each board. To determine the option value, find the two limits where the RX loses connection then set the option value to half way between them. If you have a 4in1 V2 board the value is around 40.

CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8
A	E	T	R	CH5	CH6	CH7	CH8

CYRF6936 RF Module

DEVO

Extended limits supported

CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8
A	E	T	R	CH5	CH6	CH7	CH8

Note that the RX ouput will be EATR.

Bind procedure using serial:

With the TX off, put the binding plug in and power on the RX (RX LED slow blink), then power it down and remove the binding plug. Receiver should now be in autobind mode.
Turn on the TX, set protocol = Devo with option=0, turn off the TX (TX is now in autobind mode).
Turn on RX (RX LED fast blink).
Turn on TX (RX LED solid, TX LED fast blink).
Wait for bind on the TX to complete (TX LED solid).
Make sure to set the RX_Num value for model match.
Change option to 1 to use the global ID.
Do not touch option/RX_Num anymore.

Bind procedure using PPM:

With the TX off, put the binding plug in and power on the RX (RX LED slow blink), then power it down and remove the binding plug. Receiver should now be in autobind mode.
Turn on RX (RX LED fast blink).
Turn the dial to the model number running protocol DEVO on the module.
Press the bind button and turn on the TX. TX is now in autobind mode.
Release bind button after 1 second: RX LED solid, TX LED fast blink.
Wait for bind on the TX to complete (TX LED solid).
Press the bind button for 1 second. TX/RX is now in fixed ID mode.
To verify that the TX is in fixed mode: power cycle the TX, the module LED should be solid ON (no blink).
Note: Autobind/fixed ID mode is linked to the dial number. Which means that you can have multiple dial numbers set to the same protocol DEVO with different RX_Num and have different bind modes at the same time. It enables PPM users to get model match under DEVO.

DSM

Extended limits supported

Telemetry enabled for TSSI and plugins

option=number of channels from 4 to 12. An invalid option value will end up with 6 channels.

CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8	CH9	CH10	CH11	CH12
A	E	T	R	CH5	CH6	CH7	CH8	CH9	CH10	CH11	CH12

Notes:

model/type/number of channels indicated on the RX can be different from what the RX is in fact wanting to see. So don't hesitate to test different combinations until you have something working. Using Auto is the best way to find these settings.
RX ouput will always be TAER independently of the input AETR, RETA...

Sub_protocol DSM2_22

DSM2, Resolution 1024, refresh rate 22ms

Sub_protocol DSM2_11

DSM2, Resolution 2048, refresh rate 11ms

Sub_protocol DSMX_22

DSMX, Resolution 2048, refresh rate 22ms

Sub_protocol DSMX_11

DSMX, Resolution 2048, refresh rate 11ms

Sub_protocol AUTO

The "AUTO" feature enables the TX to automatically choose what are the best settings for your DSM RX and update your model protocol settings accordingly.

The current radio firmware which are able to use the "AUTO" feature are ersky9x (9XR Pro, 9Xtreme, Taranis, ...) and er9x for M128 (9XR) and M2561. For these firmwares, you must have a telemetry enabled TX and you have to make sure you set the Telemetry "Usr proto" to "DSMx". Also on er9x you will need to be sure to match the polarity of the telemetry serial (normal or inverted by bitbashing), while on ersky9x you can set "Invert COM1" accordinlgy.

J6Pro

CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8	CH9	CH10	CH11	CH12
A	E	T	R	CH5	CH6	CH7	CH8	CH9	CH10	CH11	CH12

NRF24L01 RF Module

ASSAN

Extended limits supported

CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8	CH9	CH10
CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8	CH9	CH10

The transmitter must be close to the receiver while binding.

BAYANG

Models: EAchine H8(C) mini, BayangToys X6/X7/X9, JJRC JJ850, Floureon H101 ...

Autobind protocol

CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8	CH9	CH10
A	E	T	R	FLIP	RTH	PICTURE	VIDEO	HEADLESS	INVERTED

CG023

Models: EAchine CG023/CG031/3D X4

Autobind protocol

CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8	CH9
A	E	T	R	FLIP	LIGHT	PICTURE	VIDEO	HEADLESS

Sub_protocol YD829

Models: Attop YD-822/YD-829/YD-829C ...

CH5	CH6	CH7	CH8	CH9
FLIP		PICTURE	VIDEO	HEADLESS

Sub_protocol H8_3D

Models: EAchine H8 mini 3D, JJRC H20/H22

CH5	CH6	CH7	CH8	CH9
FLIP	LIGTH	OPT1	OPT2	CAL

JJRC H20: OPT1=Headless, OPT2=RTH

JJRC H22: OPT1=RTH, OPT2=180/360° flip mode

H8 3D: OPT1=RTH then press a direction to enter headless mode (like stock TX), OPT2=switch 180/360° flip mode

CAL: calibrate accelerometers

CX10

Extended limits supported

Autobind protocol

CH1	CH2	CH3	CH4	CH5	CH6
A	E	T	R	FLIP	RATE

Rate: -100%=rate 1, 0%=rate 2, +100%=rate 3

Sub_protocol GREEN

Models: Cheerson CX-10 green pcb

Same channels assignement as above.

Sub_protocol BLUE

Models: Cheerson CX-10 blue pcb & some newer red pcb, CX-10A, CX-10C, CX11, CX12, Floureon FX10, JJRC DHD D1

CH5	CH6	CH7	CH8
FLIP	RATE	PICTURE	VIDEO

Rate: -100%=rate 1, 0%=rate 2, +100%=rate 3 or headless for CX-10A

Sub_protocol DM007

CH5	CH6	CH7	CH8	CH9
FLIP	MODE	PICTURE	VIDEO	HEADLESS

Sub_protocol Q282 and Q242

CH5	CH6	CH7	CH8	CH9	CH10	CH11	CH12
FLIP	LED	PICTURE	VIDEO	HEADLESS	RTH	XCAL	YCAL

Model: JXD 509 is using Q282 with CH12=Start/Stop motors

Sub_protocol JC3015_1

CH5	CH6	CH7	CH8
FLIP	MODE	PICTURE	VIDEO

Sub_protocol JC3015_2

CH5	CH6	CH7	CH8
FLIP	MODE	LED	DFLIP

Sub_protocol MK33041

CH5	CH6	CH7	CH8	CH9	CH10
FLIP	MODE	PICTURE	VIDEO	HEADLESS	RTH

ESKY

CH1	CH2	CH3	CH4	CH5	CH6
A	E	T	R	GYRO	PITCH

FY326

CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8	CH9
A	E	T	R	FLIP	RTH	HEADLESS	EXPERT	CALIBRATE

FQ777

Model: FQ777-124

CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8
A	E	T	R	FLIP	RTH	HEADLESS	EXPERT

HISKY

CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8
A	E	T	R	GEAR	PITCH	GYRO	CH8

GYRO: -100%=6G, +100%=3G

HK310

Models: RX HK-3000, HK3100 and XY3000 (TX are HK-300, HK-310 and TL-3C)

CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8
		T	R	AUX	T_FSAFE	R_FSAFE	AUX_FSAFE

KN

CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8	CH9	CH10	CH11
A	E	T	R	DR	THOLD	IDLEUP	GYRO	Ttrim	Atrim	Etrim

Dual Rate: +100%=full range, Throttle Hold: +100%=hold, Idle Up: +100%=3D, GYRO: -100%=6G, +100%=3G

Sub_protocol WLTOYS

Sub_protocol FEILUN

Same channels assignement as above.

HONTAI

Autobind protocol

CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8	CH9	CH10	CH11
A	E	T	R	FLIP	LED	PICTURE	VIDEO	HEADLESS	RTH	CAL

Sub_protocol HONTAI

Sub_protocol JJRCX1

CH6
ARM

Sub_protocol X5C1 clone

MJXQ

Autobind protocol

CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8	CH9	CH10	CH11	CH12	CH13
A	E	T	R	FLIP	LED	PICTURE	VIDEO	HEADLESS	RTH	AUTOFLIP	PAN	TILT

Sub_protocol WLH08

Sub_protocol X600

Only 3 TX IDs available, change RX_Num value 0..2 to cycle through them

Sub_protocol X800

Only 3 TX IDs available, change RX_Num value 0..2 to cycle through them

Sub_protocol H26D

Sub_protocol E010

MT99XX

Autobind protocol

CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8	CH9
A	E	T	R	FLIP	LED	PICTURE	VIDEO	HEADLESS

Sub_protocol MT

Models: MT99xx

Sub_protocol H7

Models: Eachine H7, Cheerson CX023

Sub_protocol YZ

Model: Yi Zhan i6S Only one model can be flown at the same time since the ID is hardcoded.

Sub_protocol LS

Models: LS114, 124, 215

CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8	CH9
A	E	T	R	FLIP	INVERT	PICTURE	VIDEO	HEADLESS

Shenqi

Autobind protocol

Model: Shenqiwei 1/20 Mini Motorcycle

CH1	CH2	CH3	CH4
	T	R

Throttle +100%=full forward,0%=stop,-100%=full backward.

SLT

Autobind protocol

CH1	CH2	CH3	CH4	CH5	CH6
A	E	T	R	GEAR	PITCH

Symax

Autobind protocol

CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8	CH9
A	E	T	R	FLIP		PICTURE	VIDEO	HEADLESS

Sub_protocol SYMAX

Models: Syma X5C-1/X11/X11C/X12

Sub_protocol SYMAX5C

Model: Syma X5C (original) and X2

V2X2

Models: WLToys V202/252/272, JXD 385/388, JJRC H6C, Yizhan Tarantula X6 ...

CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8	CH9	CH10	CH11
A	E	T	R	FLIP	LIGHT	PICTURE	VIDEO	HEADLESS	MAG_CAL_X	MAG_CAL_Y

PICTURE: also automatic Missile Launcher and Hoist in one direction

VIDEO: also Sprayer, Bubbler, Missile Launcher(1), and Hoist in the other dir

YD717

Autobind protocol

CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8	CH9
A	E	T	R	FLIP	LIGHT	PICTURE	VIDEO	HEADLESS

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Protocol_Details_old.md

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MULTI-Module Protocol Details

A7105 RF Module

FLYSKY

Sub_protocol V9X9

Sub_protocol V6X6

Sub_protocol V912

HUBSAN

CC2500 RF Module

FRSKYV = FrSky 1 way

FRSKYD

FRSKYX

Sub_protocol CH_16

Sub_protocol CH_8

SFHSS

CYRF6936 RF Module

DEVO

DSM

Sub_protocol DSM2_22

Sub_protocol DSM2_11

Sub_protocol DSMX_22

Sub_protocol DSMX_11

Sub_protocol AUTO

J6Pro

NRF24L01 RF Module

ASSAN

BAYANG

CG023

Sub_protocol YD829

Sub_protocol H8_3D

CX10

Sub_protocol GREEN

Sub_protocol BLUE

Sub_protocol DM007

Sub_protocol Q282 and Q242

Sub_protocol JC3015_1

Sub_protocol JC3015_2

Sub_protocol MK33041

ESKY

FY326

FQ777

HISKY

HK310

KN

Sub_protocol WLTOYS

Sub_protocol FEILUN

HONTAI

Sub_protocol HONTAI

Sub_protocol JJRCX1

Sub_protocol X5C1 clone

MJXQ

Sub_protocol WLH08

Sub_protocol X600

Sub_protocol X800

Sub_protocol H26D

Sub_protocol E010

MT99XX

Sub_protocol MT

Sub_protocol H7

Sub_protocol YZ

Sub_protocol LS

Shenqi

SLT

Symax

Sub_protocol SYMAX

Sub_protocol SYMAX5C

V2X2

YD717

Sub_protocol YD717

Sub_protocol SKYWLKR

Sub_protocol SYMAX4

Sub_protocol XINXUN

Sub_protocol NIHUI