So this is my second legal grow, and extremely lucky(!) occurrences have led to the conclusion that it will very probably be my last grow too. In fact I am doing it only because I feel obliged to @DivineSeeds granting me two packages of seeds to enter the contest although my first grow was not completed.
I put 3 seeds into RO water yesterday, did not examine them for any signs of germination but put them into soil today. Only the two big 20 l pots will participate in this contest. If they germinate of course. So the success rate is a lie at the time of writing. I’ll update it later.
Graphics are from a self-built Growbox control using two Raspberry Pis, an Arduino, a camera and a lot of sensors.
During all phases below drying, the software tries to stay within the "green" VPD range, switching the main blower, a self-built humidifier and more small fans and blowers.
Lights are turned to 20% currently, the lowest dimming value possible, which means 2 x 10 W.
As there is nothing to see yet and the Raspberry Pi2 has lost its sense for the camera, real-time images are currently disabled.
The first soil humidity is not really soil but the filling grade of the humidifier. Soil humidity values 2 and 3 are the big pots.