
Overview
The sensor traces have a weak pull-up resistor of 1 MΩ.
The resistor will pull the sensor trace value high until a drop of water shorts the sensor trace to the grounded trace.
Believe it or not this circuit will work with the digital I/O pins of your Arduino or you can use it with the analog pins to detect the amount of water induced contact between the grounded and sensor traces.
Features:
- Grove compatible interface
- Low power consumption
- 2.0cm x 2.0cm Grove module
- High sensitivity
Application Ideas:
- Rainfall detecting
- Liquid leakage
- Tank overflow detector
Tech specs
Item |
Min |
Typical |
Max |
Unit |
Working Voltage |
4.75 |
5.0 |
5.25 |
V |
Current |
<20 |
mA |
||
Working Temperature |
10 |
- |
30 |
℃ |
Working Humidity (without condensation) |
10 |
- |
90 |
% |
Get Inspired

… In partnership with Campus Store Academy, this informative workshop will walk you through implementing Arduino in the classroom with Arduino CTC 101. Register here. Saturday, October 13th 11:30am - 12:30pm (Pavilion 7 - Room 7): Arduino MKR Vidor: Democratizing FPGA: Led by Martino Facchin, Arduino Senior HW Engineer, this session will discuss how the MKR Vidor combines the power and flexibility of an FPGA with the ease of use of Arduino. More info here. 11:45am - 12:45pm (Pavilion 9 - Room 11): In partnership with Campus Store Academy, this informative workshop will walk you through implementing Arduino in the classroom with Arduino CTC 101. Register here. 2:15pm - 3:15pm (Pavilion 7 - Room 7) Arduino IoT Cloud: The Internet of Things Revolution: Luca Cipriani, Arduino CIO, will focus on the potential of the Arduino IoT Cloud, the latest developments in the Arduino ecosystem, as well as how to build connected objects in a quick, easy, and secure manner. More info here. 4:15pm - 5:15pm ( Pavilion 9 - Room 13): Arduino Engineering Kit: Advanced Programming and Learning Applications: In collaboration with Campus Store Academy, this workshop is concentrated on helping tomorrow’s engineers approach mechatronics and automated control. Register here. 5:45pm - 6:45pm ( Pavilion 9 - Room 11): STEAM with Arduino: In collaboration with Campus Store Academy, this session will introduce you to the Arduino Starter Kit Classroom Pack and how Arduino is being used as a flexible learning tool. More info here. Sunday, October 14th 2:45pm - 3:45pm: Shape Your Future with MATLAB and the Arduino Engineering Kit: In collaboration with the MathWorks team and Jose Garcia, HW Engineer at Arduino, this talk will feature live demos of a robot designed and controlled with Arduino and MATLAB. More info here. 4:15am - 5:45pm (Pavilion 9 - Room 11): CTC: Bring Open-Source into Your Classroom: In partnership with Campus Store Academy, this informative workshop will walk you through