Renesas RX23W Quick Start Guide

Quick Start Guide

MCU Header

Arduino UNO
Header

TM

ACT LED

USB Connector

(Emulator)

Power Indicator

LED

User LED

USB Connector

(USB Serial)

External Power

Supply Header

Current

Consumption

Measurement

Header

Reset Switch

Evaluation MCU
(RX23W module)

MCU Header

Arduino UNO
Header

TM

User Switch

Pmod
Connector

TM

Emulator

Reset Switch

RX23W Group

Target Board for RX23W module Quick Start Guide

1. Introduction

1.1 About This Document

This document is a quick start guide for Target Board for RX23W module (Hereafter referred to as this
product) equipped with Bluetooth

This document describes:

• Startup procedure for this product

• Bluetooth communication with your smartphone

• Preparation for Bluetooth functionality evaluation

• Restoring factory software

1.2 Product Feature

Figure 1-1 illustrates the product feature of this product.

Target Board for RX23W module (RTK5RX23W0C01000BJ)

®

technology-compatible microcontroller RX23W.

Figure 1-1 Product Feature of Target Board

For details of this product, refer to RX23W Group Target Board for RX23W module User’s Manual
(R20UT4890).

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RX23W Group Target Board for RX23W module Quick Start Guide

OS

Version

iOS

9.0 or later

Android

5.0.1 or later

1.3 Necessary Equipment

Since this product does not include a USB cable, prepare an A – micro B type USB cable.

To check the operation according to this document, prepare a smartphone with the OS shown in Table 1-1
and the smartphone app “GATTBrowser” made by Renesas Electronics.

Table 1-1 Supported OS

GATTBrowser

iOS version:

https://itunes.apple.com/app/gattbrowser/id1163057977

Android version:

https://play.google.com/store/apps/details?id=com.renesas.ble.gattbrowser

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RX23W Group Target Board for RX23W module Quick Start Guide

2. Startup Procedure

2.1 Power on

This product supports USB power supply. Confirm that ESW1-2 is OFF and connect USB connector CN1 to
the USB port of your PC (or other power supply) with a USB cable.

Figure 2-1 USB Connector CN1

When connecting to your PC for the first time, a driver installation message will appear on the PC screen as
shown in Figure 2-2. After that, the driver installation completion message is displayed on your PC.

Note: The display may vary depending on the PC OS.

Figure 2-2 USB Serial Driver Installation Message

2.2 Startup Confirmation

After turning on the power, confirm that LED0 blinks at 1-second intervals. If it does not blink, check that the
USB connector CN1 is used or that ESW1-2 is OFF.

Figure 2-3 LED Blinking

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RX23W Group Target Board for RX23W module Quick Start Guide

Target Board for RX23W module

Start advertising

Remote Device

Target Board action

BLE Event

Remote Device action

Start scanning

Advertising Packet

Advertising Packet

Connection Complete

(BLE_GAP_EVENT_CONN_IND)

Request for connection

Search GATT service

Detect the "RBLE_DEV" device name .
If detecting the name, send a request for connection.

GATT service search complete

Enable Notification

Push SW1

Notification

Detect the followings as the result.
LED Switch Service
UUID : 58831926-5F05-4267-AB01-B4968E8EFCE0

Switch State Characteristic
UUID : 58837F57-5F05-4267-AB01-B4968E8EFCE0

LED Blink Rate Characteristic
UUID : 5883C32F-5F05-4267-AB01-B4968E8EFCE0

After enabling the notification
in the Switch State characteristic,
the notification packet is sent to the remote device
by pushing the SW1 on the board.

Write LED blink rate characteristic

LED Blink

By writing a number to the LED Blink Rate characteristic,
the LED blinks at the number x 100ms interval.
The LED turns off by writing zero to the characteristic.

Disconnection complete

(BLE_GAP_EVENT_DISCONN_IND)

Request for disconnection

Restart advertising

3. Operation Check

Software stored at the time of shipment to this product will start advertising to be connected after the power
is turned on. After connecting, it communicates with a remote device such as a smartphone to perform the
user switch operation and the user LED blink control. Figure 3-1 shows the operation of this product.

3.1 Communication with Smartphone

To operate this product from a smartphone, follow the steps below.

Note: The smartphone display varies depending on the OS. In this document, the Android version

Figure 3-1 Operating Flow

GATTBrowser screen is used for explanation.

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RX23W Group Target Board for RX23W module Quick Start Guide

1. Turn on this product.

2. Start GATTBrowser on your smartphone.

3. Tap the arrow icon of the device displayed as “RBLE-DEV” on GATTBrowser to connect.

Figure 3-2 Connect to This Product

3.1 If many devices are discovered and difficult to find, enable the filter function.

Figure 3-3 Filter Function

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4. Confirm that the following are detected.

• LED Switch Service (UUID: 58831926-5F05-4267-AB01-B4968E8EFCE0)

• Switch State Characteristic (UUID: 58837F57-5F05-4267-AB01-B4968E8EFCE0)

• LED Blink Rate Characteristic (UUID: 5883C32F-5F05-4267-AB01-B4968E8EFCE0)

Figure 3-4 Confirmation of Connection Establishment

5. Tap the Switch State characteristic to notify the smartphone of pressing SW1 on this product.

Figure 3-5 Selecting Switch State Characteristic

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