UNB Makerspace:
Automated Plant Workshop
Hosted by: Josh Watson and Geoffrey Chenard
Funding: EEF and EUS
Description:
- The goal of this workshop is to create a fully automated plant capable of taking care of itself as long as it's plugged in and there's water in a reservoir.
To Do:
- Create schematic
- Create build guide
- Link to editable fusion 360 files
- Create and post revised design
- Potential Revisions:
- Might have to replace the 2n2222a for the pump with an AO3400 or other MOSFET
- Add pull-up resistors for transistor/MOSFET
- Add reverse current diode for pump [probably not too important]
- Add smoothing capacitor for pump
- Potentially add current limiting / pullup resistor for pump
- Modify tolerances for LED Holder and the Arm
- Modify the electronics holder so the fit better, add holder for perfboard
Materials:
Electronics
Fabricated Boards:
- 1 x Arduino Nano
- 1 x LED Array PCB
- 1 x Sisterboard
Components:
-
9 x 5730 (or other) SMD LEDs
-
9 x 50 ohm 1/4 W resistors (can increase this number to decrease brightness)
-
1 x Capacitive Soil Hygrometer
-
Cabling
-
4 x 1K ohm resistor
-
4 x 10K ohm resistor
-
4 x AO3480 N-Trench MOSFET
-
1 x SMA "M4" 1n1Diode
1 x 1/8" PVC tubing cut to length
- 1 x 3D printed pot
- 1 x 3D printed LED holder