Your greenhouse
You are the proud owner of a greenhouse. However, you have some trouble with managing the climate inside the greenhouse. You would like to have some sort of alarm system to alert you when the temperature either rises too high or falls too low. But wait - that is not all! You want the greenhouse to try to adjust the temperature automatically, too. You own both a heater that will raise the temperature and a motorised door that will lower the temperature inside your greenhouse. It is only when the greenhouse is unable to keep the temperature within the limits you have set forth, and it has ceased trying to do so, that you want the greenhouse to alert you. Realizing, as you are always busy, a simple audible alarm is not enough. You need to be alerted even when you are far away from the greenhouse.
This is where the RTCU comes to the rescue!
We want the RTCU device to do the following:
•Turn the heater on when the temperature falls too low.
•Open the motorised door when the temperature rises too high.
•Call you on your mobile phone when the RTCU is unable to keep the temperature within limits.
The interface between the greenhouse and the RTCU is as follows:
Digital inputs:
•Low temperature
•High temperature
Digital outputs:
•Heater
•Open door
The next chapters will help you to develop this application, to test the program, and finally to transfer it to an RTCU device.
Chapter 2 Create a project
Should you encounter any difficulties during this tutorial, please contact support.