Our Green Thumb project senses water moisture content in plants. Using this information, a water pump powered by a motor waters the plants when water moisture is lower. A low pass filter filters out noise from the water moisture sensor.
Compute: Micro-controller
Power: Switching regulator
Sensing: Water moisture sensor
Total Cost: $30.78
Most Expensive Items:
Soil Moisture Sensor
Regulator
Low Pass Filter
Switch Regulator
MOSFET for Water Pump
Fix the Regulator and output the correct voltage outage.
3D print a small container for the board
Organize the layout of the PCB