Internet of Things

How can I solve XML parser error in setup box 6141

I am good in mechanical but not in electrical. I couldt read a lot or ask for. I am looking for an iot2000-solution to measure tempreture in rooms and send it to an cloud. Witch equipment is nessecary? Couldt anyone help?

 I am planning to use it as a beacon. Thank you.

I have followed the video letter for letter in regards to updating Node-RED. https://www.youtube.com/watch?v=5B_wJBD-LB8&lc=UgxEi_b7sSD4fouQHuF4AaABAg The video is out of date is seems and the process doesnt work. Ive managed to get Node-RED upated but in the process a Nodejs is out of date. A warning appears... Using an unsupported version of Node.jsYou should upgrade to the latest Node.js LTS release To manage Node ersion have installed n as npm cache clean -fnpm install -g nBut, running it result in ... root@iot2000:~#n lts  Error: no version found for 'lts'root@iot2000:~# n lsfind: '/usr/local/n/versions': No such file or directory So it seems that Node is located somewhere non-standard? Node-RED has reached Version 1 - stable production version.However the SD image is very out of date resulting in the need to manually update and hence all the problems. Is it possible for a new SD image to be released with Node-RED to version 1 ????

Hi, I am looking for assistance with selecting the right battery for my low power IOT application.  The battery needs to have a long shelf life and last for a few years. My microcontroller application draws very low current and is in low power mode most of the time.  The micro needs 5V to operate. Can anyone recommend the best battery type, brand and where to source them? I am in Durban South Africa. 

I have a control unit that consists of an MCU, flash memory, buttons, LEDs. It is 3.3V powered and it has a battery. I also have a separate PCB with an accelerometer (called sensor board). The control unit and sensor board are communicating using SPI. I need a connection cable to connect those two PCBs and also a port on the control unit to recharge the battery and to transfer some data from flash to PC. My idea was to solder a cable to the sensor board PCB and to put a USB Type-C connector on the other part of the cable. The control unit should have USB Type-C controller that should be able for alternate mode. This way I hope that I can use SPI 3.3V signal on USB-C cable. The other benefit of this is when you want to recharge the control unit and you connect an USB Type-C cable to computer (on the same port where you connected the sensor board earlier). It should detect that is a charging cable and charge the battery and transfer some data to PC.   ON Semiconductor recommended me to use FUSB302 for this, but we will also need an UART to USB interface and maybe a multiplexer. I am trying to have a look for chips that can do all those things and to put in place a BOM to test.

How can i design a blockchain for secure data sharing in IOT. E.g simulation for secure data sharing in a network.  If anybody have tutorials plz share it with me. Thanks in advance

Salut pour tous excusez moi je suis une debutante dans le domaine internet des objets je veux deployer un projet qui consiste à la mesure de la quantité de l'eau par un capteur et le transferer via la transmission LoRa à l'utilisateur. je pense à utiliser -un capteur de mesure de la quantité d'eau -un module LoRa emetteur recepteur coté Capteur -un gateway LoRa coté serveur ou utilisateur mais je ne sais pas quel autre outils je peux avoir besoin ni quel modéle ou type de gateway, capteur et module LoRa dois-je utiliser j'attends votre réponse Merci d'avance Merci à tous    

So...., bit of a newbie question here. Suppose I would want to have 100+ objects communicate with an internet-connected hub, every 3 seconds. Communication is simple information like availability yes/no + a user ID that gets assigned to the object. To my understanding, BT is not usable, because it cannot handle that many connections simultaneously. What would be the best low-cost, low-energy solution here? We are in a concrete basement, so no cellular.  Any tip into the right direction is appreciated!  

I'm looking for an iOS-based MQTT client like MQTTBox. Everything I've found so far seems to be tied into some home automation service or another. All I need is basic publish and subscribe with the ability to edit the payload. Does anyone have any recommendations? Thanks!

春休みにラズベリーパイでおしゃべりロボットを作ろうと思っているのですが、その際にwebページから情報を入力しようと思ってます。 私はweb開発の方面の知識はほとんどないので、初心者でも比較的簡単に利用できるフレームワークを教えていただきたいです。 pythonはある程度使えますので、pythonのおすすめフレームワークがあれば、ぜひお願いします。

I have two cables with spare pairs. One cable has a spare twisted pair and the other with an untwisted pair. If I connect RJ45s at either end and connect into a spare switch port will it work.

I need some type of aeriel or system to amplify marina wifi' to my mobile devices on board.