The Dewi Sant Greenhouse Project - Assessment

1. The Dewi Sant Greenhouse Project - Assessment

2. We are learning today: • To build a control system that operates all of the parts of the greenhouse system in an efficient way • Level 4: A mostly working system that controls most parts of the greenhouse • Level 5: A fully working system that controls most of the parts of the greenhouse in one big flowchart • Level 6: A fully working system that controls all of the parts of the greenhouse and uses as least one subroutine • Level 7: A fully working system that controls all of the parts of the greenhouse and uses several effective subroutines

3. Annotate our greenhouse mimic • val 1 = analogue heat sensor • val 2 = analogue light sensor • input 1 = digital moisture sensor • output 5 = heater • output 6 = light • mot a = open / close window • mot b = sprinkler

4. Using variables from analogue sensors Start Yes Is Val 1 < 30? Turn Output 5 on No Val 1 is a temperature sensor Turn Output 5 off Val 1 is a temperature sensor

5. Programmable Options • Use moisture sensor to turn on the sprinkler • Use heat sensor to turn on the heater • Use light sensor to turn on the light • Use moisture sensor to close the window and turn on the sprinklers for 10 seconds Remember to print out each flowchart, stick in your book and annotate to explain what is happening in each step

6. Evidence: One to two A4 pages • Name • Title: “Greenhouse Assessment” • Date • A clear print screen of your greenhouse control system, showing the mimic • An explanation of your system, talking through every part of your system to show how it works