Software for an ESP8266 WiFi module to read data from a DHT22 sensor module, do something with it like publishing it to a server, and then going into DeepSleep.
DeepSleep on a ESP-01 module requires a hack to the module because not all pins of the ESP8266 chip are exposed. See this article on hackaday.com on how to accomplish this hack (at your own risk).
Make sure you have installed the ESP8266 Arduino core from https://github.com/esp8266/Arduino. Their project describes how to install those dependencies.
- Mark Ruys' DHT library: https://github.com/markruys/arduino-DHT.git
- Tzapu's WiFiManager: https://github.com/tzapu/WiFiManager
- More to come during development