configMqttServer method
Implementation
Future<void> configMqttServer(MqttInfo mqttInfo) async {
String config =
'{"mac":"${mac}","setting":{"mqtt_uri":"${mqttInfo.mqttServerHost}","mqtt_port":${mqttInfo.mqttServerPort},"mqtt_user":"${mqttInfo.mqttClientUserName}","mqtt_password":"${mqttInfo.mqttClientUserPassword}"}}';
await send(config);
}