Remote Control App Manual

• 1: Pin Assignment of Remote Control App
• 2: Remote Control App Operating Modes
• 3: Remote Control App Alternative Baud Rate Setting
• 4: Remote Control App UART Function
• 5: Custom Default Feature of Remote Control App
• 6: Pairing Function of Remote Control App
• 7: Interactive Mode (Remote Control App)

1 - Pin Assignment of Remote Control App

TWELITE / TWELITE DIP

The functions of pins used by the Remote Control App are represented using the names from the diagram of Extremely Simple! Standard App Pins.

Power Input

Connect a 3.3V (2.0-3.6V) power supply to VCC/GND.

Digital Input/Output

Child: 12 inputs 0 outputs / Parent: 12 outputs 0 inputs

Default input/output assignments.

Child: 8 inputs 4 outputs / Parent: 8 outputs 4 inputs

Input/output assignments when the option bit: 0x00001000 setting is enabled.

Child: 6 inputs 6 outputs / Parent: 6 outputs 6 inputs

Input/output assignments when the option bit: 0x00002000 setting is enabled.

Child: 0 inputs 12 outputs / Parent: 0 outputs 12 inputs

Input/output assignments when the option bit: 0x00003000 setting is enabled.

Serial Input/Output

TX/RX are used for transmission and reception of the remote control (UART).

Status LED Output

Used when outputting status during automatic application ID setting.

Make the LED light up when the output is Low (sink type).

Setting Input

Mode Setting Input

By leaving the Mx pins unconnected or connecting them to GND, you can switch between operating modes such as parent, child, and repeater.

Alternative Baud Rate Setting Input

By leaving the BPS pin unconnected or connecting it to GND, you can change the UART baud rate (communication speed) to a value other than 115200bps.

Channel Setting Input

Temporarily overrides the frequency channel.

Reset Input

By connecting a push button between RST and GND, you can implement a reset button. RST is internally pulled up.

2 - Remote Control App Operating Modes

List of Operating Modes

Each mode is set by connecting the Mx pins to either not connected (OPEN) or to GND.

O: Not connected (OPEN), G: Connected to GND

Initial mode is Child: Continuous mode.

The initial Logical Device ID (LID) used to identify the device differs depending on the mode.

Parent Device

Continuous Mode

Parent: Continuous Mode

When a change in signal input is detected, or every second, data is sent to all child devices.

It also always waits for data sent from child devices, so it responds quickly but continuously consumes power.

• Reception: Always waiting
• Transmission: On input change / every 1 second

Child Device

Continuous Mode

Child: Continuous Mode

When a change in signal input is detected, or every second, data is sent to all parent devices.

It also always waits for data sent from parent devices, so it responds quickly but continuously consumes power.

• Reception: Always waiting
• Transmission: On input change / every 1 second

Child: Continuous 0.03s Mode

This mode shortens the periodic transmission interval of Child: Continuous Mode from 1 second to 0.03 seconds.

Although it always waits for data sent from the parent device, it occupies the bandwidth of communication from child to parent, causing slower response to parent input. It continuously consumes power.

• Reception: Always waiting
• Transmission: On input change / every 0.03 seconds

Intermittent Mode

Child: Intermittent 1s Mode

When a change in signal input is detected, or every second, the power saving mode is disabled and data is sent to all parent devices.

Reception is disabled, so it cannot be controlled by the parent device. This mode has excellent power saving performance.

• Reception: Disabled
• Transmission: On input change / every 1 second

Child: Intermittent 10s Mode

When a change in signal input is detected, or every 10 seconds, the power saving mode is disabled and data is sent to all parent devices.

Reception is disabled, so it cannot be controlled by the parent device. This mode has excellent power saving performance.

• Reception: Disabled
• Transmission: On input change / every 10 seconds

Repeater Device

Continuous Mode

Repeater: Continuous Mode

The repeater transmits received packets.

You can install up to three repeaters between parent and child devices, but increasing repeaters increases the number of packets, which can cause interference.

• Reception: Always waiting
• Transmission: On reception

3 - Remote Control App Alternative Baud Rate Setting

Enabling Alternative Baud Rate Setting

You can enable the alternative baud rate setting by connecting the BPS pin to GND.

O: not connected (OPEN), G: connected to GND

4 - Remote Control App UART Function

Digital Input and Output

0x81: Status Notification from the Remote Device

Outputs the state of the received input signal.

Data Format

Example Output Data

:01810F01DB8630000200645F000040004F00400049

0x80: Remote Device Output Change

Controls the output signals of the remote device.

Data Format

UART Input and Output

5 - Custom Default Feature of Remote Control App

For example, if you create firmware that changes the baud rate from 115200bps to 9600bps, you can use it at 9600bps from the start.

Configuration Procedure

1. Apply the Settings

Change the settings in Interactive Mode, press S to save.

2. Download the Settings

Prepare software capable of downloading data using the xmodem protocol.

While still in Interactive Mode (before selecting items), request xmodem download.

lrx --binary --xmodem /path/to/conf.bin

If the download succeeds, it generates a 128-byte file (may be smaller depending on the xmodem implementation).

3. Creating Custom Binary

Concatenate the downloaded file to the end of the firmware binary file to create a custom binary.

Use command line tools or general file concatenation tools for concatenation.

Example

An example when the downloaded xmodem file is conf.bin, the original binary file is App_IO_BLUE_L1305_V1-3-X.bin, and the custom binary to be created is App_IO_custom_V1-3-X.bin.

【Windows】

copy App_IO_BLUE_L1305_V1-3-X.bin App_IO_custom_V1-3-X.bin
type conf.bin >> App_IO_custom_V1-3-X.bin

【macOS / Linux】

cat App_IO_BLUE_L1305_V1-3-X.bin conf.bin > App_IO_custom_V1-3-X.bin

4. Writing Custom Binary

Write the concatenated custom binary to TWELITE.

     --- CONFIG/APP_IO V1-04-2/SID=0x81001f1c/LID=0x78 C- ---

     --- CONFIG/APP_IO V1-04-2/SID=0x81001f1c/LID=0x78 CE ---

6 - Pairing Function of Remote Control App

Configuration Method

Create a group by generating an application ID based on the parent’s serial ID and feeding it to the child devices. Connect an LED to the LED pin to check if the configuration is successful.

1. Connect an LED and a current limiting resistor (680Ω) to the LED pins of the parent and child devices (with correct polarity).
2. Leave M1 open and connect M2 and M3 to GND.
3. Power on the parent device and check that the LED blinks.
4. Within 5 seconds, power on the child device near the parent and confirm that the LED turns off (if it stays lit, the configuration failed).

7 - Interactive Mode (Remote Control App)

This section explains features specific to the Remote Control App (App_IO). For common features, please refer to the TWELITE APPS Manual Top Page.

Display Example

The screen below will be displayed.

--- CONFIG/APP_IO V1-03-2/SID=0x86300001/LID=0x00 ---
 a: set Application ID (0x67720107)
 i: set Device ID (--)
 c: set Channels (16)
 x: set Tx Power (3)
 t: set mode4 sleep dur (1000ms)
 y: set mode7 sleep dur (0s)
 f: set mode3 fps (16)
 d: set hold mask (000000000000)
 D: set hold dur (1000ms)
 o: set Option Bits (0x00000000)
 b: set UART baud (38400)
 p: set UART parity (N)
 C: set crypt mode (0)
 K: set crypt key []
---
 S: save Configuration
 R: reset to Defaults

Commands

Details for each command are as follows.

a: Application ID

All devices communicating should have the same value. This logically separates networks.

i: Logical Device ID

Set this when it is necessary to distinguish multiple child devices.

If distinction is not necessary or not possible, set to 120. If distinction is necessary, child devices should be any value from 1 to 100, and parent device should be 0 or 121.

c: Frequency Channel

All devices communicating should have the same value. This physically separates networks.

x: Transmission Output and Retry Count

Specify the radio transmission output and the number of additional packet transmissions in transparent mode and header-attached transparent mode.

t: Child Device Intermittent 1-Second Mode Interval

Overwrite the intermittent interval of the child device intermittent 1-second mode from 1 second to another value. Unit is milliseconds.

If 0 is set, periodic wake-up by timer is disabled. In this case, the device wakes up on the falling edge of Ix, but not on the rising edge.

y: Child Device Intermittent 10-Second Mode Interval

Overwrite the intermittent interval of the child device intermittent 10-second mode from 10 seconds to another value. Unit is seconds.

If 0 is set, periodic wake-up by timer is disabled. In this case, the device wakes up on the falling edge of Ix, but not on the rising edge.

f: Child Device Continuous 0.03-Second Mode Cycle

Overwrite the number of transmission requests per second from 32 times to 4/8/16 times. Retry count is not included.

d: Hold/Long Press Mode Targets

By default, select ports targeted by hold mode, and when Option Bit 0x00000100 is enabled, select ports targeted by remote control long press mode.

Specify the bitmask of Ix or Ox ports to target. The value consists of up to 12 characters of 0 or 1. From LSB, the order is I1 I2 … I12.

For example, specifying 000000001010 applies hold mode to I2 and I4. If any pin is targeted, ports not targeted output a 50ms pulse.

Hold Mode

In hold mode, targeted ports behave as follows:

Input (Transmission) side: Ix

• After all inputs return from Lo to Hi, continuous transmission occurs for the configured duration (to release hold).

Output (Reception) side: Ox

• For received inputs that are Lo, output holds Lo for the configured duration.
• If during hold of any output, another Lo signal is received, the hold duration is extended.

Remote Control Long Press Mode

In remote control long press mode, targeted ports behave as follows:

Input (Transmission) side: Ix

• Continuous transmission while any input is Lo.
• After all inputs return from Lo to Hi, continuous transmission occurs for the configured duration.

Output (Reception) side: Ox

• After packets with any input Lo are interrupted, outputs return Hi after the configured duration.

D: Hold/Long Press Mode Duration

By default, specify hold mode duration; when Option Bit 0x00000100 is enabled, specify hold duration or transmission interval for remote control long press mode.

Specify a value between 20 and 64000 ms.

Hold Mode

For hold mode, the configured duration applies as follows:

Input (Transmission) side: Ix

In continuous mode, the duration of continuous transmission after all inputs return from Lo to Hi.

In intermittent mode, the transmission interval while any input is Lo.

Output (Reception) side: Ox

The duration to maintain output.

Remote Control Long Press Mode

For remote control long press mode, the configured duration applies as follows:

Input (Transmission) side: Ix

The duration of continuous transmission after all inputs return from Lo to Hi.

Output (Reception) side: Ox

The time from interruption of packets with any input Lo until all outputs return to Hi.

o: Option Bits

Specify a 32bit number. Enable settings associated with each bit.

b: UART Alternative Baud Rate

Overwrite the alternative baud rate selected when starting with the BPS pin connected to GND from 38400 bps.

Values can be selected from 9600/19200/38400/57600/115200/230400. Other values may cause errors.

p: UART Parity

Set to N (None), O (Odd), or E (Even). Stop bit is fixed to 1, hardware flow control is not supported.

C: Encryption

Specify whether encryption is enabled.

Set 1 to enable AES128bit encryption.

K: Encryption Key

Input the key used for encryption. Specify a 16-character text (binary sequences cannot be specified).

Details of Option Bits

Explanation of settings associated with each bit of the option bits value.

0x00000001: Low Latency Mode

Monitor input status and perform wireless transmission in low latency mode.

Shortens button monitoring time and minimizes transmission delay. In continuous mode, interrupts are used for input judgment but are more susceptible to chattering. In intermittent mode, reduces time to confirm input status.

Only valid for child devices.

0x00000002: Low Latency Mode (Sleep Interrupt)

When waking from sleep due to an interrupt from Ix going from Hi to Lo in intermittent mode, quickly send port information of the interrupt source.

Especially used in child device intermittent 10-second mode when periodic wake-up is disabled, combined with hold mode to detect button presses.

Only valid for child devices.

0x00000010: Enable Transmission with ACK

Enable ACK communication from child to parent. Transmission ends when parent returns ACK.

Not available for multiple parents or all repeaters, but provides efficient communication in stable environments.

In child device intermittent 10-second mode, the BPS pin is set as output pin, so baud rate override on child side is not possible.

0x00000020: Disable Periodic Transmission

Disable periodic transmission every 1 second in child continuous mode.

0x00000100: Enable Remote Control Long Press Mode

Apply remote control long press mode instead of hold mode.

0x00000200: Disable C1/C2 Channel Switching

Disable channel switching by C1/C2 pins.

0x00000400: Invert Ix Input

Send 1 when input is Hi, and 0 when Lo.

0x00000800: Disable Internal Pull-up of Ix

Disable all internal pull-ups (~50kΩ) on Ix.

0x00001000: Child: 8 Input 4 Output / Parent: 8 Output 4 Input

Change I/O port assignment from “Child: 12 Input 0 Output / Parent: 12 Output 0 Input”. Intermittent mode uses intermittent reception.

0x00002000: Child: 6 Input 6 Output / Parent: 6 Output 6 Input

Change I/O port assignment from “Child: 12 Input 0 Output / Parent: 12 Output 0 Input”. Intermittent mode uses intermittent reception.

0x00003000: Child: 0 Input 12 Output / Parent: 0 Output 12 Input

Change I/O port assignment from “Child: 12 Input 0 Output / Parent: 12 Output 0 Input”. Intermittent mode uses intermittent reception.

0x00010000: Force Enable Reception on Child

In continuous mode, force enable reception regardless of output ports.

Allows UART output of data received from other devices.

0x00020000: Stop UART Output on IO Change

Stop message output on input/output changes.

0x00040000: Enable Watchdog Output on C2

Output watchdog signal from C2 port.

Control IO in application loop and output approx. 32Hz square wave.

Used to connect external reset circuit for automatic recovery and force reset the module in case of hang-up.

0x00400000: Invert Output on Ox

Output Lo when received input port status is 0, and Hi when 1.