I have a virtual machine that is supposed to be the host, which can receive and send data. The first picture is the error that I'm getting on my main machine (from which I'm trying to send data fro...

From where do I have to accept the speech recognition policy? Here is the code public async void display() { SpeechRecognizer rec = new SpeechRecognizer(); await rec.CompileConstraintsAsync(); ...

I am new to MQTT protocol. As I read through the document, I couldn't see any function to remove the published topic. My purpose is to allow the publisher to remove the published topic. Did I miss ...

I am trying to configure a new unit with a cellular interface on ubuntu core 16.04. I have NMCLI package running on it. Before I added my connection I checked the Interfaces # nmcli dev DEVICE TYP...

I am using the node.js mosca MQTT broker for some internet of things (iot) application. https://github.com/mcollina/mosca What is the maximum message length that a topic can receive for the mosca...

I have numerous ESP8266 apps converted to 32 bit. These seem to run fine on the WROVER chips but on the WROOM-32 chips they load and execute, but panic after some time. I get this error: Guru Medi...

I have created a server using net module: // Creating and connecting with server const net = require('net'); const server = net.createServer(); //Creating server //Connecting with server server.on...

I'm trying to build a project where I must pilot an IoT device from smartphone via Wifi. This device has the SPWF01 Wifi Module integrated, and is configured as an access point (that has no Interne...

I'm using Node-Red, hosted on a Raspberry Pi for an IoT project. How do I trigger a Python script that is on the raspi from Node-Red? I want to run a script that updates the text on an Adafruit LC...

I am building an android app that needs to communicate over a WiFi network that will not have any internet access. The problem is that even when the WiFi is connected android chooses to use cellula...

I am designing an API for confidential communication between an IoT device and a client. A must is that that the client-device connection is secure and no man-in-the middle can temper the communica...

My code is connecting to AWS-END-POINT properly but when I tried connecting to Greengrass core using local network ip. I get this error. E/flutter (12349): [ERROR:flutter/lib/ui/ui_dart_state.cc(1...

I am using Cloudformation template to create a stack including IoT fleet provisioning template and according to the document the IoT provisioning template body should be string type. I have the IoT...

I am trying to access a simple AWS IOT REST service but I have not been able to do so successfully yet. Here is what I did. I created an iam user in my aws and downloaded the access key and secr...

I am building an IoT solution where I will have multiple devices connected to my local network that I want to connect to a hub that controls my solution. Once I connect a new device I want to conne...

I tried to install library ESP8266WebServer into platformio IDE. I got this error "functional: No such file or directory". A bit of research of "functional", http://www.cplusplus.com/reference/func...

I have the ESP32 board with Silicon Labs CP2102 controller. When I connect it to my MacBook, I can get the details about this device using the command system_profiler SPUSBDataType, but it is not l...

I connect to a BLE device with the connectGatt() method in Android. This works great. When I disconnect I use the following: private void disconnectDevice() { gatt.disconnect(); } When I recei...

Azure IoT Hub Supports AMQP, MQTT, HTTP protocols. In order to customize these protocols we have Azure IoT protocol gateway. I can find good samples on MQTT protocol customization. I need some samp...

I have a E66 Fitness band connected to a gateway and the band does connect to the gateway and I receive data on MQTT. But I am unsure on how to decode the RawData format, can someone help me with ...

I have an automotive companion app that needs to communicate with both wifi and mobile data networks. My vehicle control unit provides a wifi network without internet access which exposes an API s...

Our existing IoT Platform uses Azure Protocol Gateway and is working well. I just realized that MS Azure has launched a newer version for Protocol Gateway called IoT Edge. I was just looking for th...

I am working on native android application. In this application I am connecting hardware devices using usb cable, for this connection I used below library: https://github.com/felHR85/UsbSerial I ...

I m trying to connect my android app to a Tcp iot server,first i connect to the tcp server using wifi then try socket connect but it is showing same error of connection timed out. print(r); }).c...

Is there any way to establish a connection with Google IoT pub-sub API in flutter? I tried this library but it doesn't have the configuration which I am looking for. I have the following data whi...