Temperature Logger

This is a little program I wrote to talk to an Arduino over USB serial to read temperature and relative humidity values using a DHT11 sensor, and put then in a SQLite database.

main.c is the PC program that does the logging (printing to stdout).

It just reads printed messages from the serial port USB0, and writes them back into a SQLite3 database. It automatically creates the database and tables if they don't exist (making it do that was 90% of the work).

arduino.ino is the Arduino IDE project that reads from the hardware using the Adafruit sensors library.

The arduino code is very arduino which isn't too nice since sine its such a tiny project pulling a lot of dependencies but I guess that's fine. Re-writing the DHT11 library would probably be interesting to do.

Compiling

For main.c run make

For the arduino.ino track down the Adafruit DHT11/DHT22 library, import it and build the project in the Arduino IDE.