PPM Mode

Supporting PPM Mode enables the MULTI-Module to work in a wide range of radios.

In PPM Mode the protocol is selected using the 16-position rotary selector on the MULTI-Module. The MULTI-Module supports up to five different 'banks' of protocols but by default only one bank is configured.

To take full advantage of the MULTI-Module in a PPM Mode radio the firmware should be compiled from source, with the protocol banks configured to include the desired protocol options.

JP4IN1 Module with Rotary Selector and Bind Button

A MULTI-Module with a 16-position rotary selector and a bind button is required to use PPM mode.

Default Protocol Table

Switch position 0 is reserved for enabling Serial Mode, and position 15 is reserved for switching to alternate protocol banks, leaving fourteen positions (1-14) available for protocols. By utilizing all five banks, up to 70 different protocol combinations can be configured.

The default protocol assignments for the standard MULTI-Module firmware are shown below.

Position

Protocol

Sub Protocol

RX Number

Autobind

Option Value

1

FlySky

FlySky

0

No

0

2

FlySky AFHDS 2A

PWM IBUS

0

No

0

3

FlySky AFHDS 2A

PWM IBUS

1

No

0

4

FlySky AFHDS 2A

PWM IBUS

2

No

0

5

FlySky AFHDS 2A

PWM IBUS

3

No

0

6

FlySky AFHDS 2A

PWM IBUS

2

No

0

7

FlySky AFHDS 2A

PWM IBUS

3

No

0

8

SFHSS

H107

0

No

0

9

FrSky V

0

No

40

10

FrSky D

0

No

40

11

FrSky X

D16

0

No

40

12

FrSky X

D16 EU (LBT)

0

No

40

13

Devo

0

No

0

14

WK2x01

WK2801

0

No

0

Customizing the Protocols

To modify the protocols, or to increase the number of banks, the MULTI-Module firmware must be compiled from source.

More information about compiling the firmware is available on the Compiling the Firmware page.

Compiling the Firmware

Protocol Bank Selection

To select a protocol bank (when multiple banks are enabled):

Step 1: Turn the radio off.

Step 2: Set the rotary selector to position 15.

Step 3: Turn the radio on - the MULTI-Module indicates the current bank by flashing the LED one to five times.

Step 4: Press the bind button - the red LED lights for one second to indicate that the bank has been changed.

Step 5: Repeat Step 4 until you have reached the bank you want.

Step 6: Turn the radio off.

Step 7: Set the rotary selector to the desired position (1-14).

Step 8: Turn the radio on.

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