Reads a DHT22 and publishes it to MQTT
- Uses WiFiManager with SPIFFS for persistant storage
- Allows connection to private IP after WiFi config to add/change MQTT settings
- Uses PubSubClient for MQTT
- Flash using PlatformIO to ESP01 or NodeMCU
- Change platformio.ini to reflect model
- Connect DHT22 to GPIP 2 (pin 4 on NodeMCU)
- If you want to change these parameters, just look for them in the code
- Power up
- Look for the new Wireless Access Point TempSen-###### (the last 6 characters of the MAC address)
- Write this hostname down as you will need this to configure MQTT later
- Use your phone or anything with wireless
- Connect and then access the web admin
- Most phones will use the captive portal, if not access 192.168.4.1 with a browser
- Click "Configure WiFi" and add your WiFi credentials
- After the reboot access the device with the hostname TempSen-###### or refer to your router for DHCP IP
- Click Setup to access the MQTT settings
