robtillaart:
I have two Terrariums so i need a Modular Controller to inependently Controll both.
Why not two UNO's in stead of one MEGA? Modular is modular
and simulate Sun Rising/ Falling
I discussed an algorithm here - http://arduino.cc/forum/index.php/topic,66426.0.html - might be useful
(you can also connect an LDR to the window and "read the local sunset/rise"
Yes thats true but one othe requirement was cheap as possible
Thanks for the Feedback i will take a look into the sunrise algorithm
The next Part is the Programming Part... I want to use an SD Card to save the Settings and also to specify the "Switch Times" for each channel.(I updated the first Post with the new Hardware)
Additional i want to implement the functionality to programm the Controller over a Serial Interface in Step 1 and in Step 2 i want to replace the Serial Interface with an Bluetooth mate to configure the Controller from an Device.
Kind Regards
dafes
Edit:
I think i will add two additional Sensors. One Soil Moisture Sensor to verify if enough water in the watertank and one for the plant in the rainforest Terrarium. Has anybody a better idea for checking the water level in a Plastic Tank to prevent the pump for running dry? It should be cheap as possible
The moisture sensor cost 5€.
Edit2: I ordered a Watersensor to apply into the Watertank.