改为中断来低电平触发发送当前扫描数据，3s内扫描不到的会退出，串口来55 AA 75 70 64 61 74 65，进入升级模式

WXK

2025-04-24 ae079c1fc5d990ba55714d4b3a51b19f96edaec4

 01_SDK/nimble/samples/bluetooth/ble_central_periph_ota/keil_107x/Objects/heap_4.o

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