I recently learned about the ESP8266 and have become quite fascinated. I was able to pick up a board locally for about $10 (but online, they are only a few dollars) and after connecting a simple temperature and humidity sensor was able to get it pushing sensor data over WiFi to Mango running in AWS (via a free online MQTT broker) in really no time.
Has anyone else been playing with these units and done anything interesting? As a standalone sensor, or remote IO, they are very interesting, but I wonder if anyone has come up with any really creative applications - like using them as a modbus-TCP to Serial gateway, or implementing some sort of logging and syncing with Mango?
Best
Jeremy