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Bluetooth: Central / Health Thermometer sensor¶

1 功能概述¶

此项目演示蓝牙主机功能，不同的是这个应用程序专门寻找健康温度计传感器，并在连接建立后上报模具温度读数。

2 环境要求¶

board: 支持 BLE 的蓝牙设备
uart(option): 用来显示串口log
测试软件: nRF Connect

3 编译和烧录¶

例程位置：zephyr\samples_panchip\bluetooth\central_ht

使用 ZAL 工具可以对其进行编译、烧录、打开 VS Code 调试等操作。关于 ZAL 工具的详细介绍请参考：Zephyr APP Launcher 工具介绍。

4 演示说明¶

准备2块板卡，1块烧录peripheral_ht（见peripheral_ht例程），一块烧录central_ht

开启central设备，此时central设备可以看到扫描数据

Scanning successfully started
[DEVICE]: 35:C2:56:72:32:6C (random), AD evt type 3, AD data len 31, RSSI -43
[DEVICE]: EB:46:FA:EA:98:2F (random), AD evt type 0, AD data len 11, RSSI -43
[AD]: 1 data_len 1
[AD]: 3 data_len 6
[DEVICE]: EB:46:FA:EA:98:2F (random), AD evt type 4, AD data len 25, RSSI -43
[DEVICE]: 35:C2:56:72:32:6C (random), AD evt type 3, AD data len 31, RSSI -43
[DEVICE]: 5C:7B:03:66:6F:39 (random), AD evt type 0, AD data len 17, RSSI -42
[AD]: 1 data_len 1
[AD]: 10 data_len 1
[AD]: 255 data_len 9
[DEVICE]: 5C:7B:03:66:6F:39 (random), AD evt type 4, AD data len 0, RSSI -42
[DEVICE]: EB:46:FA:EA:98:2F (random), AD evt type 0, AD data len 11, RSSI -43

打开peripheral_ht，显示被central_ht设备扫描，串口数据打印connected，并显示上报的温度信息

Connected

temperature is 21C

Indication success Indication complete

temperature is 22C

Indication success Indication complete

在central_ht串口上会显示connect，查看上报的温度信息

Connected: C0:69:E0:DD:2B:1B (random)
[ATTRIBUTE] handle 25
[ATTRIBUTE] handle 26
[ATTRIBUTE] handle 28
[SUBSCRIBED]
Temperature 21C.
Temperature 22C.

5 RAM/Flash资源使用情况¶

Memory region         Used Size  Region Size  %age Used
FLASH:      117208 B       256 KB     44.71%
SRAM:       30696 B        50 KB     59.95%