BLE Vehicles Key¶
1 功能概述¶
此项目演示基于HID服务的自动连接服务，通过RSSI值的大小模拟实现电动二轮车的利用距离自动开关功能。
2 环境要求¶
board:
pan107x evbuart(option): 用来显示串口log（波特率921600，选项
8n1）s_key
4 演示说明¶
在设置蓝牙界面连接
vehicles key进行配对后会自动跟踪rssi值的大小，模拟电动二轮车钥匙实现近距离自动开关。Try to load HW calibration data.. DONE. - Chip Info : 0x61 - Chip CP Version : 255 - Chip FT Version : 7 - Chip MAC Address : E11000014DE5 - Chip UID : B90801465454455354 - Chip Flash UID : 4250315A3538380B01FD8B435603EF78 - Chip Flash Size : 512 KB [I] app started [I] ble stack init start... [I] Spark Controller Init Start. [I] BLE Heap size:5636 B, remain:64 B [I] Spark Controller Init OK. [I] ble host init ok -> ble thread start... [I] registered service 0x1800 with handle=1 [I] registering characteristic 0x2a00 with def_handle=2 val_handle=3 [I] registering characteristic 0x2a01 with def_handle=4 val_handle=5 [I] registered service 0x1801 with handle=6 [I] registering characteristic 0x2a05 with def_handle=7 val_handle=8 [I] registered service 0x1812 with handle=10 [I] registering characteristic 0x2a4a with def_handle=11 val_handle=12 [I] registering characteristic 0x2a4b with def_handle=13 val_handle=14 [I] registering characteristic 0x2a4d with def_handle=15 val_handle=16 [I] registering descriptor 0x2908 with handle=18 [I] registering characteristic 0x2a4d with def_handle=19 val_handle=20 [I] registering descriptor 0x2908 with handle=22 [I] registering characteristic 0x2a4d with def_handle=23 val_handle=24 [I] registering descriptor 0x2908 with handle=26 [I] registering characteristic 0x2a4c with def_handle=27 val_handle=28 [W] Device Id Address: E1 10 00 01 4D E5 [I] BLE adv start... [I] connection established; status=0 [I] -conn_intvl:45000 us -latency:0 -to:5000 ms [I] mtu update event; conn_handle=0 mtu=247 [E] ..\..\..\..\host\pan_spark_glue.c 389: Host transport alloc HCI Evt buffer failed [I] encryption change event; status=0 [I] handle=0 our_ota_addr_type=0 our_ota_addr=[I] e1 [I] 10 [I] 00 [I] 01 [I] 4d [I] e5 [I] [I] our_id_addr_type=0 our_id_addr=[I] e1 [I] 10 [I] 00 [I] 01 [I] 4d [I] e5 [I] [I] peer_ota_addr_type=1 peer_ota_addr=[I] 2c [I] 26 [I] 51 [I] 4a [I] 10 [I] 75 [I] [I] peer_id_addr_type=0 peer_id_addr=[I] 50 [I] df [I] 96 [I] 06 [I] 5a [I] 88 [I] [I] conn_itvl=36 conn_latency=0 supervision_timeout=500 encrypted=1 authenticated=0 bonded=1 [I] [I] subscribe event; cur_notify=0, val_handle=0 [I] subscribe event; cur_notify=1, val_handle=0 [I] subscribe event; cur_notify=1, val_handle=0 [I] subscribe event; cur_notify=1, val_handle=0
如果使用EVB板的话，请将
RGB-B的跳线帽连接，如果RSSI距离达到接近阈值时会触发开的动作，足够远时会触发关的距离动作。关于
rssi的滤波算法使用的是去除最大和最小值各RSSI_REMOVE_BORDER_NUM个，默认RSSI_REMOVE_BORDER_NUM为2个，排序使用冒泡排序。RSSI的整体处理在
hog.c中。