DNESP32S3官方例程04_ble_scan编译报错

187196467

DNESP32S3官方例程04_ble_scan编译报错

E:\BaiduNetdiskDownload\04_ble_scan\04_ble_scan.ino: In function 'void loop()':
E:\BaiduNetdiskDownload\04_ble_scan\04_ble_scan.ino:120:50: error: conversion from 'BLEScanResults*' to non-scalar type 'BLEScanResults' requested
  120 |     BLEScanResults foundDevices = pBLEScan->start(scanTime, false);   /* 启动BLE扫描,并在扫描到广播设备时调用回调函数 */
      |                                   ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~

exit status 1

Compilation error: conversion from 'BLEScanResults*' to non-scalar type 'BLEScanResults' requested

DNESP32S3官方例程05_ble_uart编译报错


E:\BaiduNetdiskDownload\05_ble_uart\05_ble_uart.ino: In member function 'virtual void MyCallbacks:nWrite(BLECharacteristic*)':
E:\BaiduNetdiskDownload\05_ble_uart\05_ble_uart.ino:86:56: error: conversion from 'String' to non-scalar type 'std::string' {aka 'std::__cxx11::basic_string<char>'} requested
   86 |         std::string rxValue = pCharacteristic->getValue();
      |                               ~~~~~~~~~~~~~~~~~~~~~~~~~^~

exit status 1

Compilation error: conversion from 'String' to non-scalar type 'std::string' {aka 'std::__cxx11::basic_string<char>'} requested


你们着例程都不做验证就放出来吗

187196467

找到原因了 在第120行

1. BLEScanResults foundDevices = pBLEScan->start(scanTime, false);   /* 启动BLE扫描,并在扫描到广播设备时调用回调函数 */

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foundDevices前面少了一个*改成

1. BLEScanResults *foundDevices = pBLEScan->start(scanTime, false);   /* 启动BLE扫描,并在扫描到广播设备时调用回调函数 */

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第122行

1. lcd_show_num(240, 210, foundDevices.getCount(), 2, LCD_FONT_16, RED);

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foundDevices.getCount()调用方式不对应该用->
改成

1. lcd_show_num(240, 210, foundDevices->getCount(), 2, LCD_FONT_16, RED);

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验证通过