Using Espresso Lite v2.0 ESP8266 board with Arduino

I’m mostly writing this for my own reference, because I keep forgetting it, but I have to hold down GPIO0 button to actually upload sketches to this board, despite them proudly crowing that it doesn’t need to be reset to upload sketches.

I’m using it with a DHT11 to record temperature and humidity to apache logs for an assignment Eliz has.