我很难将字符串从uno传输到ESP8266,然后再传输到数据库。它不是在uno程序中显示" low“,而是在我的网页上显示每个low的字符,而不是显示整个世界。(见附图)。
Arduino Uno的代码:
// send as
String test = "Low";
void setup()
{
Serial.begin(115200);
// wait for the serial port to connect. Required for Leonardo/Micro native USB port only
while (!Ser
当我运行以下ansible命令时:
$ ansible-playbook deploy/solo/wifi.yml -i inventories/solo
我收到以下错误消息:
ERROR! the role 'solo/controller/wifi' was not found in /home/peng/git/uavops/deploy/roles:/home/peng/.ansible/roles:/usr/share/ansible/roles:/etc/ansible/roles:/home/peng/git/uavops/deploy
The error ap
我试图获得所有可用的wifi的细节,但BroadcastReceiver扫描结果不被调用。
码
活动
wifiStatusActivity extends AppCompatActivity {
WifiManager wifi;
List<ScanResult> results;
/* Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanc
###################################
# MainActivity.cs
###################################
using System;
using Android.App;
using Android.Content.PM;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using Android.OS;
using Android.Content;
using System.Collections.Generic;
using
与此样本和全球定位系统禁用,我得到没有ScanResults。当启用gps时,我会得到结果。(在Android 7上测试)我必须启用gps正常吗?有没有办法在没有gps的情况下获得所有wifi的BSSID?
public void readWifis(Activity activity) {
// Get the wifi manager.
// Provides the primary API for managing all aspects of Wi-Fi connectivity.
WifiManager wifiManager = (WifiManager)