Kit 001
✅ Step 4 – Test Your System
Now that your code is uploaded, let’s make sure everything works as expected.
This is where you see your plant come to life.
What You’re Testing
The moisture sensor is sending values to the Arduino
The relay turns the pump on and off automatically
Water flows through the pump and tubing into the soil when dry
Step-by-Step Instructions
1. Open the Serial Monitor
In Arduino IDE, go to Tools → Serial Monitor
You’ll see live moisture values (e.g.,
970,845,1023)
2. Simulate Dry Soil
Remove the sensor from the soil and let it dry
You should see the value increase
Once it crosses
1000, the relay will click and the pump will turn on
3. Simulate Wet Soil
Dip the sensor in water or insert it into wet soil
The value should drop below 1000
The pump should stop
Tips
Relay won’t trigger? Double-check the relay wiring:
INgoes to Arduino pin 7VCCto 5VGNDto Ground
Pump not running? Make sure your external 5V power supply is connected and grounded with the Arduino
Tubing issue? Prime the pump by letting water flow through manually first
If You Need Help
Post a picture or video in #tech-questions on Discord — we’re here for you.