I have a Rasperry Pi 3 also, but I have heard of Edison and Audrino. I went with the Pi because it runs Linux and I will be setting it up to monitor steemit and some trading exchanges. I'm wondering if it can alert me somehow. I'll google and find some Python code to send emails or texts. Best wishes with all your projects!
I'm also thinking of monitoring Steemit with a Pi. I did start installing the Python libraries, but had some issues. Need to look again at that. I have a scrolling LED display that could display updates. Looking at MQTT to pass on messages. Could use IFTTT to get them to other services. I just need to find time to play with this stuff.