Tölvustýrður blómapottur er blómapottur sem hefur tölvustýringu sem gerir honum kleift að fylgjast með og bæta umhverfið sem blómin vaxa í. Það hve mikið blómapotturinn mælir er alveg háð smekk.
- 1 Búnaður
- 2 Skref fyrir skref samsetning
- 1x Arduino (Diecimilla, Dumillanove, etc.)
- 1x 60cm×30cm akrýlplata (plexigler), mælt með 3mm þykkt
- 1x Hitanemi (OneWireBus, 1380 kubbur)
- 2x Rakanemar
- 1x Ljósnemi
- 1x Vatnspumpa
Skref fyrir skref samsetning
A simple pot design is a “troth”. If you launch the Inkscape program and set the paper size to 60cm×30cm (which is the maximum sheet size in an Epilog mini laser cutter) you can design the parts. An example design is included in the project.
If you design your own, remember to make sure you leave holes in the bottom of the pot for water to escape, 5mm diameter holes are fine if you have a few of them. In order to collect the escaped water from the bottom you'll need a plate to put underneath. Try to fit all of your design onto the 60cm×30cm sheet.
For this step you'll need a laser cutter. Save the design as a PDF file or in some other format that you can send to the laser. Check the laser documentation for correct settings!
Setja saman pottinn
Now that you have all your pieces, use the glue gun to attach them to one another. The glue can get a bit messy, so try to apply it neatly. Use a tongue stick to spread the glue out and fix it up nicely.
Remember that the purpose of the glue is not just to attach the sides, but to make the junctions watertight.
Búa til bakkann
The last piece is the tray. Using a plastic bender you can bend the material slightly so that it can collect water. If you don't get the corners together tight enough use a bit of glue to fix them together.
If you made holes on your design to attach an Arduino you can screw the Arduino to the pot now. Putting a bit of glue on the ends of the bolts on the inside will protect the Arduino, which should be on the outside, from moisture seeping through.
Fix the moisture sensors to the pot in the correct way and hook them up to the 5V output on the Arduino and analog inputs 0 and 1. If you have a small pot you might only need one sensor, but in the accompanying design it's prudent to have two. See the appendix for instructions on how to construct your own moisture sensors.
The temperature sensor that we're going to use is a so called “1380” sensor. It is a calibrated device with its own logic and spits out digital measurements, which makes it very easy to use. It uses a communications channel called a OneWireBus. We'll talk more about it later. For now, you'll need to hook one pin of the sensor up to the 5V output, one to GND, and we'll connect the last pin to digital port 0 on the Arduino.
Our light sensor will connect to the 5V output and the analog input 1 on the Arduino.