Archive:Hydroponics
| Hydroponics Gardens Release status: experimental [box doku] | |
|---|---|
| Description | Growing plants in water, indoors |
| Author(s) | tiefpunkt |
We have a small hydroponic garden in our space, currently consisting of one deep water culture box with 4 plants.
Plants
There are currently 4 plants:
- Bell pepper
- Mini cucumber
- Zucchini
- Jalapeño chilli
All 4 were not grown from seeds, but bought when they were ~10-15cm tall, and replanted from soil to hydroton.
Hydroponic system
The plants are set in a deep water culture, build from a 22l IKEA Samla box. We are using the black version to discourage algae growth. The box is completely filled with water (and some nutrition solution). For air supply, it has a 30cm air stone on the bottom, which is supplied by a 165 l/h air pump. We are using 8cm net cups for the plants.
Lights
The plants are under a 40W CFL daylight lamp, which is on a timer to be lit for 12 hours a day.
Sensors
There are currently 3 sensors in and around the system, monitoring 4 values:
- Outside temperature (Sensor: DHT22)
- Water temperature (Sensor: DS18B20)
- Humidity (Sensor: DHT22)
- Water level (Sensor: HC-SR04)
Values from these sensors are posted to MQTT (MuMaBus), and then pushed to our ThingStore [1].
In addition, there is a webcam in front of the plants: http://data.tiefpunkt.com/hydroponics/image.jpg
Costs
| Item | Price | Amount | Bought where? | Notes |
|---|---|---|---|---|
| Ausströmer 30cm | 3.61 € | 1 | Amazon Marketplace | (+ 3.18€ shipping) |
| Tageslichtlampe 40W (200W) | 17.75 € | 2 | tageslichtlampen24.de | only need one (+3.57€ shipping) |
| Membranpumpe (Luft) + Schlauch | 12,98 € | 1 | Amazon |
