This project uses a DHT 22 sensor to report the current temperature every minute.
The information will be published to a MQQ / Mosquitto server on the
topic temperature. Additionally the board will dump all its meta-info
to the topic meta on startup.
The meta-information includes:
- Hostname
- IP Address
- MAC Address
- etc.
You'll need to change the IP address of the MQQ server if you wish to deploy this yourself.
The DHT22 is wired to pin D4, which is hardwired as I use a simple "shield".
There is a simple Perl script included in Record/ which will log
the received temperature/humidity in an SQLite database.
That can be viewed via the View/view.cgi CGI-script to present
graphs.