BLE4.0 低功耗蓝牙透明传输模块.pdf

BLE4.0 Module / 低功耗蓝牙(BLE 4.0)透明传输模块General Description

The CC2540 module is a cost-effective, low-power, true system-on-chip (SoC) for Bluetooth low energy applications. It enables robust BLE master or slave nodes to be built with very low total bill-of-material costs. The CC2540 combines an excellent RF transceiver with an industry-standard enhanced 8051 MCU, in-system programmable flash memory, 8-KB RAM, and many other powerful supporting features and peripherals. The CC2540 is suitable for systems where very low power consumption is required. Very low-power sleep modes are available. Short transition times between operating modes further enable low power consumption.

Features and Benefits

Bluetooth low energy technology Compatible

Excellent Link Budget (up to 97 dB),

Enabling Long-Range Applications

Accurate Digital RSSI

Compliance With FCC & CE standard

High-Performance and Low-Power 8051 MCU core

Battery Monitor and Temperature Sensor

Sample Applications and Profiles

Full-Speed USB Interface

AES Security Coprocessor

Applications

2.4-GHz Bluetooth low energy Systems

Mobile Phone Accessories

Sports and Leisure Equipment

Consumer Electronics

Human Interface Devices (Keyboard, Mouse Remote Control)

USB Dongles

Health Care and Medical

ITEM

TEST REQUIREMENT REMARKS

Voltage supply 2.0－3.6V DC

Center frequency 2400－2483.5MHz Programmable Frequency error ±20KHz Modulation O-QPSK

Output power 4.5dBm Programmable Receiving sensitivity -93dBm High gain Mode Receiving current 24mA High gain mode Receiving current 21mA Standard mode Transmitting current 35mA TX Power 4dBm Transmitting current

26mA TX Power -6dBm Sleep consumption At power mode3

0.4uA Connection-less stat Transmit distance >50M BER<0.1% Antenna

50ohm

Temperature range -20－85°C

module size

15*25mm

接线方框图

DC+3v

Bluetooth

RF

说明：

1. Ready ，在设备准备好的时候置低，不使用时置高电平。

2. 蓝牙模块常态处于休眠状态，当Ready 为低，开始广播，等待手机对接。

3. 对接成功后，移动设备会有提示。

4. 设备在对接成功后，每两秒给出一帧数据，如果校验正确，BLE 模块则立即发送到手 机，否则放弃发送。

5. 设备在发送串口数据之前，置低UEN ，来唤醒CC2540，发送完毕之后抬高UEN.

6. 设备置低UEN 之后延时暂定500us ，串口再发送数据。

串口硬件协议：9600 bps , 8, 无校验位，1停止位 软件协议结构：

1.

心率带编号：ID1,ID2,高字节在前， 取值 0 ～

65535

2. 计步器值：PM1,PM2,高字节在前， 取值 0 ～ 65535

3. 心率值：HR,

取值

0 ～

255

4.

校验和：CHKS , 取byte1~byte6 之和 。 初测功耗：（根据以上协议收发数据的条件下） 睡眠电流：0.3uA

广播电流（连接之前）：0.46mA 工作电流（收发数据期间）：1.65mA （最大值）

每次持续时间20mS ,这个时间取决于通讯数据长度，以及发送频度。

任何的问题欢迎来电沟通，谢谢！

深圳市信驰达科技有限公司

SHENZHEN RF STAR TECHNOLOGY CO.,LTD. TEL :0755–86329829, E-mail: Winter@

QQ: 270681680,

地址：深圳市南山区科技园科苑南路留学生创业大厦1304室

吴先生