蓝牙MIDI模块BLE蓝牙音频双模测试方法说明

一、简介蓝牙模块测试的过程其实很简单。

初次接触的用户可能不知道该如何快速的测试和使用，这里我们精心整理了这一篇教程，来帮助BT401模块的用户快速测试，以下从5个方面来介绍1、模块的版本说明2、基本的硬件参数介绍3、串口的测试方法4、BLE的测试方法5、SPP的测试方法其中使用到的工具如下：1、PC端--串口调试助手2、IOS端--LightBlue软件APP--测试BLE3、安卓端--蓝牙串口APP--测试SPP4、载体--蓝牙模块底板二、详细的说明2.1模块的版本说明1、BT401蓝牙模块出厂是有默认DAC输出版本的2、如果用户需要I2S的版本，可以自己升级一下固件，资料库里面，有固件程序，也有升级的方法说明2.2模块硬件介绍1、模块上电自动自动进入蓝牙，等待手机去连接2、蓝牙名称为“BT401-AUDIO”[这个是音频的蓝牙名--需要播放音乐连接这个]3、蓝牙名称为“BT401-BLE”[这个是蓝牙BLE的蓝牙名--需要BLE数传连接这个]4、如果有插入U盘或者TF卡，则自动播放U盘或者TF卡5、如果插入U盘或者TF卡，则需要通过mode按键去切换的6、模块有一个IO驱动指示灯，模组的19脚。

进入蓝牙是快闪，连接成功是常亮，播放是慢闪2.3串口控制功能--AT指令1、串口的波特率是115200。

测试串口使用的调试助手如下图，一定要设置为字符串2.4BLE数据的测试说明1、此功能的测试使用的是lightblue，手机只能是iphone2、因为只有iphone里面的lightblue软件才可以发送字符串。

而安卓的就不行3、这里的AT+BD66667，是把EDR的名称设置为“66667”，注意这里不需要加“\r\n”。

因为手机端打不出这个，所以我们内部自动添加上了“\r\n”4、此功能可以选择用，也可以选择不用。

2.5SPP数据的测试说明1、单次吞吐的数据最大为256个字节2、如果使用SPP作为数传，请不要主动连接模块的“BT201-BLE”这个蓝牙名，或者自己设置的BLE蓝牙名3、注意SPP是属于EDR里面的一个子链路而已。

HY-254101 Bluetooth BLE Module Specifications (User manual)1.DescriptionHY-254101 Bluetooth low energy module is a single mode device targeted for low power sensors and accessories.HY-254101 offers all Bluetooth low energy features: radio, stack, profiles and application space for customer applications. The module also provides flexible hardware interfaces to connect sensors.HY-254101 can be powered directly with a standard coin cell batteries or pair of AAA batteries. in lowest power shutdown mode it consumes only 0.5 uA and will wake up in few microseconds.Bluetooth IC：TTC2541 6*6 40pin IC / use TI CC2541 IC dice2.APPLICATIONS:Heart rate sensorsPedometersWatchesBlood pressure and glucose metersWeight scalesKey fobsHouseholds sensors and collector devicesSecurity tagsWireless keys (keyless go)Proximity sensorsIndoor GPS broadcasting devices3.KEY FEATURES:●Bluetooth BLE 5.0 single mode RF physics charactics compliant●Supports master,slave and master/slave modes●Integrated Bluetooth low energy stack●GAP, GATT, L2CAP, SMP Bluetooth low energy profiles●Compliance: BQB , FCC, IC(Canada), CE ETSI RED…etc. worldwide RFRegulations.●In-System-Programmable Flash 256KB SRAM 8KB●Low current consumption :Shutdown. No clocks running, no retention:0.5uA(Typical)(4). DimensionsSize and FCC ID/ IC ID print word:(5)、HY-254101 Module Working modeschematic :(6). Electrical characteristics(With Ta = 25 ℃, VDD = 3.3V, standard measure: 1Mbps , 250KHz GFSK modulation , Bluetooth Low energy mode.) 1. Modulation Mode : GFSK;2. Frequency range : 2402~2480MHZ (2.4G ISM band );3. Operating ambient temperature range : -40 ℃ ~ + 85 ℃;4. The storage temperature range : -40 ℃ ~ + 125;5. Receiving mode current (high gain setting): 20.02 mA (typical);6. Transmit mode current ( at 0dBm output setting ): 18.2 mA (typical);7. MCU law active current (only 32MHz operation of X-tal OSC ):6.7 mA (typ);8. Power mode 1: The current consumption : (under MCU standby mode, the wake-uptime = 4uS); I= 270uA (Typical );9. P ower mode 2: THE current consumption in sleep mode .timer activate / enable,wake-up time can by the programming software setting): I = 1uA (typ); 10. Power mode 3: The current consumption :( Low power deep sleep mode,by the hardware initiative wake ): I = 0.5uA (Typical);(6-1）HY-254101（ PCB Antenna ）pinmap（6-2）Pin function table (Not shown in the I/O pin functions ,Please seePin Function Description (The module following collectively "BLE"):a.UART: serial bus, the default baud rate 9600bps, a single packet transmissionis less than 17 bytes, package transmission intervals greater than 20ms.b.SPI: SPI bus interface, support for less than 2M / S data transmission rate,a single packet transmission is less than 17 bytes, package transmissionintervals greater than 20ms.c.IIC: IIC bus interface, support more than 22K / S, less than 400K / S datatransmission rate, a single packet transmission is less than 8 bytes,package transmission intervals greater than 20ms.d.RX: serial bus data input.e.MOSI: Master output, Slave input.f.MISO: Master input, Slave output.g.SCK: SPI bus clock signal.h.SDA: IIC data.i.SCL: IIC clock.j.WAKEUP: BLE wake up pin, Low _wake up, High/ BLE module automatically sleep. k.SEL0 ~ SEL1: MCU and BLE communication mode selection pin. Specific details, see "(7-3) communication protocol mode selection, I/O setting table ".l.REST: BLE hardware reset pin, Low_reset.m.VCC: BLE module power supply pin voltage range DC 2.0~3.6V.n.GND: BLE module ground pin.(6-4）SPI mode： SEL1=1,SEL0=0IIC mode： SEL1=1,SEL0=1(7).Antenna size and data : (Frequency Range: 2.4~2.48GHz)(8). FCC Caution:Any Changes or modifications not expressly approved by the party responsible forcompliance could void the user's authority to operate the equipment.This device complies with part 15 of the FCC Rules. Operation is subject to thefollowing two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.FCC RF Radiation Exposure Statement:1.This Transmitter must not be co-located or operating in conjunction with any otherantenna or transmitter.2.This equipment complies with RF radiation exposure limits set forth for anuncontrolled environment.3.This equipment should be installed and operated with minimum distance 20cmbetweenthe radiator& your body.Host product manufacturers that they need to provide a physical or e-label stating Contains FCC ID”with their finished product.Only those antennas with same type and lesser gain filed under this FCC ID can be used with this device.The host product manufacturer is responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. The final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed.The final host integrator must ensure there is no instruction provided in the user manual or customer documentation indicating how to install or remove the transmitter module except such device has implemented two-ways authentication between module and the host system.The final host manual shall include the following regulatory statement:This equipment has been tested and found to comply with the limits for a This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.。

YXY-BT4030蓝牙模组AT指令手册深圳速锐得科技有限公司©2013YXY-BT4030蓝牙模组支持定制开发，根据客户的要求进行参数设置，以便简化产线流程。

默认状态下，YXY-BT4030蓝牙模组烧录标准程序，其参数如下：●蓝牙名称：YXY-BT4030●配对码：1234●串口参数：38400，8数据位，1停止位，无校验为了满足客户产品同类多型号的应用情况，YXY-BT4030蓝牙模组支持串口AT指令配置参数。

客户可以使用AT指令自行配置模组参数，一次设置好后永久保存参数，模组重新上电后自动生效。

一、AT指令集说明AT指令，属于字符行指令，按行解析(即以回车换行”\r\n”作为指令结尾)。

YXY-BT4030蓝牙模组处于空闲等待状态时，解析Uart串口数据，进行AT指令处理；处于已连接状态时，不处理Uart串口数据作，直接转发至远端蓝牙。

1.使能/关闭AT指令备注：为了避免用户误操作，只有使能AT指令后，才能发送其他指令；如果没有返回OK，请检查Uart串口线路、波特率设置是否正确。

2.读取/设置蓝牙名称示例：设置蓝牙名称为”My Bluetooth”发送AT+NAMEMy Bluetooth返回OK3.读取/设置配对码示例：设置配对为”0000”发送AT+PIN0000返回OK4.读取/设置波特率备注：波特率支持1200 / 2400 / 4800 / 9600 / 38400 / 57600 / 115200，设置波特率并模组重启后，启用新波特率进行数据收发以及AT指令解析。

示例：设置波特率为9600发送AT+BAUD9600返回OK5.读取蓝牙地址示例：本机蓝牙地址为00:11:22:33:44:55发送AT+ADDR返回+ADDR:001122334455OK二、指令操作流程1. MCU操作流程硬件准备：MCU交叉连接模组Uart接口，模组上电。

软件编程：Uart_Init(rate); //config Current Uart Baud rateUart_Send(“AT+EN1\r\n”); //enable ATUart_Receive();if (receive == “OK\r\n”){Uart_Send(“AT+PIN0000\r\n”); //set pincode 0000Uart_Receive();if (receive == “OK\r\n”){printf(“Set OK!”);}Uart_Send(“AT+EN0\r\n”); //disable ATUart_Receive();}2. PC操作流程硬件准备：通过TTL转R232将模组连接到PC电脑端串口，模组上电软件操作：PC串口调试工具发送AT指令例如超级终端，需设置“以换行符作为发送行末尾”，如下图例如SSCOM串口调试助手，需勾选“发送新行”，如下图：三、常见问题1．如何进入AT指令模式答：模组处于空闲等待状态，例如重新上电后，发送AT+EN1，收到返回OK即进入AT指令模式；发送AT+EN0，收到返回OK即退出AT指令模式。

蓝牙BLE射频手动测试指导书(仅供内部使用）For internal use only拟制：Prepared by 日期：Date审核：Reviewed by 日期：Dateyyyy-mm-dd审核：Reviewed by 日期：Dateyyyy-mm-dd批准：Granted by 日期：Dateyyyy-mm-dd1、测试设备和测试项目简介1.1 测试设备a、CBT：CBT（带CBT-K57选件）b、信号源，如：SMU（含蓝牙模块）or E4438Cc、频谱仪，如：E4445A or FSP1.2 测试项目1.2.1仅使用CBT即可进行的测试项目：TRM-LE/CA/01/C (Output power at NOC)TRM-LE/CA/02/C (Output power at EOC)TRM-LE/CA/03/C (In-band emissions at NOC)TRM-LE/CA/04/C (In-band emissions at EOC)TRM-LE/CA/05/C (Modulation characteristics)TRM-LE/CA/06/C (Carrier frequency offset and drift at NOC) TRM-LE/CA/07/C (Carrier frequency offset and drift at EOC) RCV-LE/CA/01/C (Receiver sensitivity at NOC)RCV-LE/CA/02/C (Receiver sensitivity at EOC)RCV-LE/CA/05/C (Intermodulation performance)RCV-LE/CA/06/C (Maximum input signal level)RCV-LE/CA/07/C (PER Report Integrity)连接图如下：图11.2.2CBT+信号源测试项目RCV-LE/CA/03/C(C/I and receiver selectivity performance) RCV-LE/CA/04/C (Blocking performance)图 2RCV/CA/04/C(阻塞特性)连接图如下：图 3RCV/CA/05/C(互调特性)连接图如下：图 41.3 测试频点设置图 4说明：BLE测试为非信令测试，本文将以TI 1873平台为例，说明BLE手动测试方法。