Test

Terrarium

1- To set up the terrarium technically, you will need :

• A terrarium > can be found in any petshop or you can recycle an old aquarium by adding a piece of glass on the top.
• Clay balls > to cover the terrarium floor (1st layer).
• A piece of polystyren > glue the openwork plants' pots on it. We used a glue gun to do so.
• Plants > Choose dwarf plants, they won't grow too much (ask when you buy it). Examples : Fittonia sp, Syngonium sp, Pilea cadierei Sil, Nephrolepsis sp, Ficus pumila sp.
• A piece of filter tissue > to cover clay balls and a part of the polystyren and pots (2nd layer).
• Soil > This is the 3rd layer. Find a a kind of soil made from sphagnum moss. A soil with a little bit acidity (here PH 4.8) encourages plants growth.
• Moss to clover everything (4th layer).

Electronic part

We choose to use arduino to control

  la lumière
  un ventilateur d'ordinateur pour ventiler le terrarium
  un capteur d'humidité de l'air et de température > DHT 22
  un capteur d'humidité du sol

1/ Lumière Nous testons des LED RVB qui ont une catode commune (le moins). T² > Faire schéma de montage sur Fritzing.

Programme Arduino : rgbled.zip