You can also use node.js, or lua on the ESP. It's not the perfect solution for everything; but it's tiny, and it costs $1.50 on aliexpress / banggood, and ther

You can also use node.js, or lua on the ESP. It's not the perfect solution for everything; but it's tiny, and it costs $1.50 on aliexpress / banggood, and there's a ton of code for it. If you need a module that is mono-task, tiny, cheap and reliable, it's hard to go past the ESP. If you're looking for a full computer, then it's an obvious choice towards CHIP / Raspberry PI, etc