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
Button Clash is an exciting two-player game where the person who pushes their button faster wins! Built it with the Arduino Plug and Make kit.
The Arduino Plug and Make Kit was designed to open up infinite possibilities, breaking down the idea that technology is a “black box” reserved for experts. With its snap-together system, this kit gives everyone – beginners and seasoned makers alike – the power to create and innovate without barriers. Forget being a passive user! With the Plug and Make Kit, technology is accessible and ready to bring your ideas to life. Meet Giulio Pilotto, Plug and Make Kit Star Giulio Pilotto is one of Arduino’s senior software engineers and works closely on Arduino Cloud projects. When we held a “Make Tank” workshop at our Turin office to showcase the potential of the Plug and Make Kit, he joined in with inspiration from a recent escape room experience. The result was Riddle Treasure, a puzzle-based game that allows you to recreate the excitement of an escape room anywhere you are. At this year’s Maker Faire, Pilotto had the opportunity to present Riddle Treasure at the Arduino booth. While he had showcased his own creations at previous Maker Faire editions, this time felt special: “The Maker Faire is always a wonderful high-energy event,” he says. “I was happy to represent the Arduino team as we focus more than ever on the community: all our products were presented in the light of what people can do with them.” Riddle Treasure To be honest, this is probably the most advanced project our in-house “Make Tank” came up with (so far!). After all, it has to be somewhat complicated to emulate intricate escape room puzzles! However, following Pilotto’s step-by-step instructions on Project Hub and leveraging the easy snap-together mechanism of Modulino nodes, anyone can recreate Riddle Treasure – or even invent a personal, unique variation. The goal of the game is to unlock a safe. But to get there, you need to complete three steps in order. 1. Combination Lock: First, you must rotate the encoder in Modulino Knob like a