微信小程序蓝牙连接设备的几种方法代码示例
时间: 2023-07-29 22:06:00 浏览: 104
微信小程序蓝牙连接设备的几种方法代码示例:
1. 手动配对:
```js
// 打开蓝牙
wx.openBluetoothAdapter({
success: function (res) {
// 搜索设备
wx.startBluetoothDevicesDiscovery({
success: function (res) {
// 获取设备列表
wx.getBluetoothDevices({
success: function (res) {
// 遍历设备列表,选择要连接的设备
for (var i = 0; i < res.devices.length; i++) {
if (res.devices[i].name == 'myDevice') {
// 连接设备
wx.createBLEConnection({
deviceId: res.devices[i].deviceId,
success: function (res) {
console.log(res)
}
})
}
}
}
})
}
})
}
})
```
2. 自动连接:
```js
// 打开蓝牙
wx.openBluetoothAdapter({
success: function (res) {
// 搜索设备
wx.startBluetoothDevicesDiscovery({
success: function (res) {
// 获取设备列表
wx.getBluetoothDevices({
success: function (res) {
// 遍历设备列表,选择要连接的设备
for (var i = 0; i < res.devices.length; i++) {
if (res.devices[i].name == 'myDevice') {
// 连接设备
wx.createBLEConnection({
deviceId: res.devices[i].deviceId,
success: function (res) {
console.log(res)
}
})
}
}
}
})
}
})
}
})
// 监听蓝牙连接状态
wx.onBLEConnectionStateChange(function (res) {
console.log(`device ${res.deviceId} state has changed, connected: ${res.connected}`)
if (!res.connected) {
// 重新连接设备
wx.createBLEConnection({
deviceId: res.deviceId,
success: function (res) {
console.log(res)
}
})
}
})
```
3. NFC:
```js
// 打开蓝牙
wx.openBluetoothAdapter({
success: function (res) {
// 开始NFC检测
wx.startHCE({
success: function (res) {
console.log(res)
// 获取设备列表
wx.getHCEState({
success: function (res) {
console.log(res)
if (res.errCode == 0) {
// 连接设备
wx.createBLEConnection({
deviceId: res.deviceId,
success: function (res) {
console.log(res)
}
})
}
}
})
}
})
}
})
```
4. 二维码扫描:
```js
// 打开蓝牙
wx.openBluetoothAdapter({
success: function (res) {
// 扫描二维码
wx.scanCode({
success: function (res) {
// 连接设备
wx.createBLEConnection({
deviceId: res.result,
success: function (res) {
console.log(res)
}
})
}
})
}
})
```
5. 应用程序:
```js
// 打开蓝牙
wx.openBluetoothAdapter({
success: function (res) {
// 搜索设备
wx.startBluetoothDevicesDiscovery({
success: function (res) {
// 获取设备列表
wx.getBluetoothDevices({
success: function (res) {
// 遍历设备列表,选择要连接的设备
for (var i = 0; i < res.devices.length; i++) {
if (res.devices[i].name == 'myDevice') {
// 连接设备
wx.createBLEConnection({
deviceId: res.devices[i].deviceId,
success: function (res) {
console.log(res)
}
})
}
}
}
})
}
})
}
})
```
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