M5Stack Irrigation Unit with Soil Moisture Sensor and Pump

The Watering Unit from M5Stack measures soil moisture with a capacitive sensor and has a built-in water pump. This allows a potted plant to be watered automatically: if the soil is too dry, the Core switches on the pump. According to M5Stack, the capacitive sensor is more corrosion-resistant than sensors with open electrodes.

Recommended Accessories:

• M5Stack M5GO IoT Starter Kit V2.7
• M5Stack Grove2Dupont Conversion Cable 20cm 10pcs

Features:

• Capacitive soil moisture sensor, more corrosion-resistant according to M5Stack
• Built-in water pump with 5 W
• Analog output for moisture, input to switch on the pump
• Connects to Port B. The Basic Core itself only has Port A, Ports B and C come with the M5GO base, for example in the M5GO IoT Starter Kit V2.7
• 2 mounting holes for snap pins or screws

Application Examples:

• Watering potted plants automatically
• Monitoring and displaying soil moisture
• Getting started with controls in UIFlow or Arduino

Documentation:

• M5Stack documentation Unit Watering
• Arduino example by M5Stack (GitHub)

Technical Data:

• Manufacturer: M5Stack
• Manufacturer SKU: U101
• Connection: Grove HY2.0-4P, Port B
• Pinout: black GND, red 5V, yellow pump on (PUMP_EN), white analog output
• On the M5Stack Basic: yellow G26, white G36
• Pump power: 5 W
• Dimensions: 192.8 × 26.5 × 33 mm
• Weight: 94.6 g

Scope of Delivery:

• 1× M5Stack Watering Unit
• 2× Water tube
• 1× Grove cable 20 cm