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Assuming your Arduino has Wi-Fi, you can send the image using HTTP to a Web Server running on your own computer. So you would need: a Wi-Fi shield (or an Arduino with built-in Wi-Fi) an HTTP client library running on the Arduino a Web Server running on your computer (I recommend python's Flask) As for how to encode the image, my suggestion is base64 + ...


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You need a bridge/gateway. From what little I remember from looking at LPWAN Zigbee networks a LONG time ago and assuming I've not got the wrong end of the stick... Something that will change the physical layer of the network (Zigbee to probably ethernet/wifi) and possibly do NAT (link-local IPv6 to either global unique IPv6 or IPv4) I also used to run ...


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Yes, in many cases pub/sub protocols that are initiated from the device to the cloud (like MQTT) are used. With things like persistent subscriptions and message queuing for offline clients it means that updates/commands will reach when it comes back online and it provides a way for the device to also publish it's state and any sensor readings back up to the ...


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welcome. I think @hardillb is covering the details pretty well. I'd like to provide some insight regarding the overall architecture. Regardless of what the RDBMS guys keep repeating, as soon as the data exploded back in early 2000 there has been an uprising of "no-sql" data stores. RDBMs do a lot of things good but they are far from being the only ...


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Your question is a bit confuse for this forum, however we can provide you some pointers so that you can rephrase your question and progress in the topics. You do not need any kind of VM, however to do that you need: A webserver and an open port on your machine. By default webserver bind themselves to the port 80, but on most computer and routers the port ...


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why and when to use MQTT: When you have a server capable to run MQTT Broker/server (obviously). You can install on raspberry pi or compile Erlang MQTT broker on any other SBC with ARM linux. When you are going to make use of the topic wildchars. Explained in Goufalite answer. When you are going to make use of the persistent feature. For example publish with ...


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