Transmitting Binary Data

Products Used

TWELITE DIP	TWELITE R2
TWELITE Parent/Child	USB Adapter
Serial Communication App	-
2 units	2 units

Note: The TWELITE DIP and TWELITE R2 pair is equivalent to a single MONOSTICK. The following combination is also acceptable.

MONOSTICK
TWELITE Parent/Child
Serial Communication App
2 units

Serial Communication App

Rewrite the TWELITE firmware to the Serial Communication App (App_Uart), which is specialized for wireless serial communication. While the “Extremely Simple! Standard App” also has a function for transmitting binary data via serial communication, its functionality is very limited.

Writing Firmware

Rewrite all Parent, Child, and Repeater devices.

1. Install the TWELITE STAGE SDK and launch the TWELITE STAGE App
2. From Serial Port Selection, select the connected device
3. From the “Main Menu”, select “2: App Write”
4. Choose “1: Select from BIN” and select App_Uart...
5. Press Enter several times until the write is complete

--- CONFIG/TWE UART APP V1-04-5/SID=0x82018ca0/LID=0x78 -- ---
 a: set Application ID (0x67720103)
 i: set Device ID (120=0x78)
 c: set Channels (18)
 x: set RF Conf (3)
 r: set Role (0x0)
 l: set Layer (0x1)
 b: set UART baud (38400)
 B: set UART option (8N1)
 m: set UART mode (E)
 k: set Tx Trigger (sep=0x0d0a, min_bytes=0 dly=0[ms])
 h: set header format [;U;%t;%i;0x%A;%q;%s;<*>;%X;\n]
 C: set crypt mode (0)
 o: set option bits (0x00000100)
---
 S: save Configuration
 R: reset to Defaults

List of Communication Modes

The Serial Communication App provides five communication modes, allowing you to select the most suitable one for your application.

• Format Mode (ASCII): Applies a format to both transmission and reception.
• Format Mode (Binary): The binary version of Format Mode (ASCII).
• Chat Mode: Mode for text chat.
• Transparent Mode: Purely wireless-enables UART without applying any format.
• Header Transparent Mode: Applies a format only to the receiver’s output.

By default, the app starts in Header Transparent Mode.

Below, we introduce communication test procedures using four of these modes. Please select and try the mode that interests you.

• Header Transparent Mode
  • No format is applied on the transmitting side.
  • The receiver’s output format provides information such as the logical device ID of the sender and the received radio signal quality.
  • This is a well-balanced mode.
• Transparent Mode
  • No format is applied to either transmission or reception.
  • The input on the transmitting side and the output on the receiving side are equivalent.
  • This is the simplest mode, but functionality is limited.
• Format Mode (ASCII)
  • Applies a format to both transmission and reception.
  • Requires external devices to support the format, but allows you to specify the destination and identify the sender.
  • Binary data is represented as hexadecimal strings.
• Format Mode (Binary)
  • Applies a format to both transmission and reception.
  • Requires external devices to support the format, but allows you to specify the destination and identify the sender.
  • Binary data is represented as-is.

In this example, we will connect two TWELITEs to the same PC and loop back data. Normally, you would use this to connect external devices wirelessly.

Header Transparent Mode

Let’s use Header Transparent Mode to send the ASCII string Hello from both sides.

How to Configure

The default mode of the Serial Communication App is Header Transparent Mode. Therefore, you can use it as-is with the initial settings.

Communication Test

1. Launch Two TWELITE STAGE Apps

Start two instances of the TWELITE STAGE App (TWELITE_Stage.exe/.command/.run).

2. Open the Terminal

After selecting the serial port on both TWELITE STAGE Apps, choose “1: Viewer” > “1: Terminal”.

3. Send from One Side

Select one of the windows, type Hello, and press Enter. The message will appear in the other window.

4. Send from the Other Side

Select the other window, type Hello, and press Enter. The message will appear in the original window.

;U;00052;120;0x82036841;255;000;Hello;79;

Transparent Mode

Let’s try sending the ASCII string Hello from both sides using Transparent Mode.

How to Configure

Set m: Communication Mode to D.

Communication Test

1. Launch Two TWELITE STAGE Apps

Start two instances of the TWELITE STAGE App (TWELITE_Stage.exe/.command/.run).

2. Open the Terminal

In both TWELITE STAGE Apps, after selecting the serial port, choose “1: Viewer” > “1: Terminal”.

3. Send from One Side

Select one of the windows, type Hello, and press Enter. The message will appear in the other window.

4. Send from the Other Side

Select the other window, type Hello, and press Enter. The message will appear in the original window.

Since no formatting is applied to either input or output, the data you enter is output as-is.

Hello

Format Mode (ASCII)

Let’s use Format Mode (ASCII) to send the binary data 0x5A 0xAB 0x90 0x00 from both sides.

How to Configure

Set m: Communication Mode to A.

Set i: Logical Device ID to 0 (Parent) on one device, and to 1 (Child, ID 1) on the other.

Communication Test (Simple Format)

Let’s first try the simple, basic format.

1. Launch Two TWELITE STAGE Apps

Start two instances of the TWELITE STAGE App (TWELITE_Stage.exe/.command/.run).

2. Open the Terminal

After selecting the serial port in both TWELITE STAGE Apps, choose “1: Viewer” > “1: Terminal”.

3. Send from the Parent Side

First, copy the following sequence:

:01235AAB900047

Next, select the Parent side window.

Finally, paste with Alt+V/⌘+V and press Enter. The data will be reflected on the Child side window.

:00235AAB900048

4. Send from the Child Side

First, copy the following sequence:

:00235AAB900048

Next, select the Child side window.

Finally, paste with Alt+V/⌘+V and press Enter. The data will be reflected on the Parent side window.

:01235AAB900047

Communication Test (Extended Format)

Next, let’s try the advanced extended format.

1. Launch Two TWELITE STAGE Apps

Start two instances of the TWELITE STAGE App (TWELITE_Stage.exe/.command/.run).

2. Open the Terminal

After selecting the serial port in both TWELITE STAGE Apps, choose “1: Viewer” > “1: Terminal”.

3. Send from the Parent Side

First, copy the following sequence:

:01A0CDFF5AAB9000FE

Next, select the Parent side window.

Finally, paste using Alt+V/⌘+V and press Enter. The data will appear in the Child side window.

:00A0CD82036841FFFFFFFFFF00045AAB9000D1

4. Send from the Child Side

First, copy the following sequence:

:00A0CDFF5AAB9000FF

Next, select the Child side window.

Finally, paste using Alt+V/⌘+V and press Enter. The data will appear in the Parent side window.

:01A0CD820163B2FFFFFFFFFF00045AAB900066

Format Mode (Binary)

Let’s use Format Mode (Binary) to send the binary data 0x5A 0xAB 0x90 0x00 from both sides.

How to Configure

Set m: Communication Mode to B.

Set the i: Logical Device ID to 0 (Parent) on one terminal, and to 1 (Child, ID 1) on the other.

Prepare an Environment that Supports Binary Data

The terminal features of the TWELITE STAGE App and TeraTerm do not support binary data. You need to use a terminal software that supports binary format.

Here, we use CoolTerm as an example.

Communication Test (Simple Format)

Let’s first try the simple, basic format.

1. Open Two CoolTerm Windows

Open two CoolTerm windows and connect each to a device.

To display received data in hexadecimal, select View > View Hex. Click Connect to connect.

2. Send from the Parent Side

Select the Parent window, then choose Connection > Send String... to open the send window, and select the Hex radio button.

Enter the following and click Send to transmit from the Parent.

A5 5A 80 06 01 23 5A AB 90 00 43 04

A5 5A 80 06 00 23 5A AB 90 00 42 04

3. Sending from the Child Side

Just as with the Parent, select the Child window, then go to Connection > Send String... to open the send window, and make sure the Hex radio button is selected.

Enter the following content and click Send to transmit to the Parent.

A5 5A 80 06 00 23 5A AB 90 00 42 04

A5 5A 80 06 01 23 5A AB 90 00 43 04

Communication Test (Extended Format)

Next, let’s try the advanced extended format.

1. Open Two CoolTerm Windows

Open two CoolTerm windows and connect each to a device.

To display received data in hexadecimal, select View > View Hex. Click Connect to connect.

2. Send from the Parent Side

Select the Parent window, then choose Connection > Send String... to open the send window, and select the Hex radio button.

Enter the following and click Send to transmit to the Child.

A5 5A 80 08 01 A0 CD FF 5A AB 90 00 F2 04

A5 5A 80 12 00 A0 CD 81 0E 0E 23 FF FF FF FF BA 00 04 5A AB 90 00 10 04

3. Send from the Child Side

As with the Parent, select the Child window, then go to Connection > Send String... to open the send window, and make sure the Hex radio button is selected.

Enter the following and click Send to transmit to the Parent.

A5 5A 80 08 00 A0 CD FF 5A AB 90 00 F3 04

A5 5A 80 12 01 A0 CD 81 0E 00 92 FF FF FF FF BA 00 04 5A AB 90 00 AE 04