I used a DHT11 with arduino in order to get the temperature and a humidity values to a PC through virtual serial port.
the program is used to display the temperature and humidity values and trends in real-time.
The program was developed with Borland C++ Builder Version 6 with some add on libraries for serial communications and data display it is an event driven program which waits for the data arrival to the serial port buffer and then started to parse it the floating point temperature and humidity values which then trended and displayed.
For the Arduino development, the Arduino IDE was used with the DHT11 library.
To acquire the data from the DHT11 and then send it through virtual serial port to the PC.
The conclusion of the project that the DHT11 is not a good choice, and due to its slow response, the data recording is not satisfactory for real-time applications.
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