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Grove - Water Level Sensor (10cm) for Arduino

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Grove - Water Level Sensor (10cm) for Arduino

SKU: SS101020635 Brand: Seeed Studio

The Grove Water Level Sensor is a very accurate sensor that can be helpful in water level sensing applications. It is completely waterproof and uses...

$15.05 AUD, inc GST

$13.68 AUD, exc GST

In stock, ships same business day if ordered before 2PM
Delivered by Tue, 7th of May

Quantity Discounts:

10-25 $13.14 (exc GST)
25+ $12.73 (exc GST)

Mom: Hey son, our tank is overflowing again!!! Son: Ohh…. not again…. (Now it’s time to use what I learnt at my electronics class). Don’t worry Mom, I will use a Grove – Water Level Sensor and fix the problem!

We have dedicated our time to help you get started with this sensor quickly and easily. Try the example code and experience the demo above with clear codes.

Features

Easy to use (Use Grove Connector without soldering)
Based on capacitive sensing
Waterproof
Conformal Coating
Corrosion Resistant
Detect up to 10cm water levels
I2C Interface

What better way to describe a product without having a story behind it?

Well…A few months ago, we thought of developing a water level sensor, but we wanted it to be different, unlike traditional water level sensing techniques such as using Ultrasonic Sensing and Resistance Based Sensing.

We have tested out different water level sensing methods such as using Non-contact capacitance-based sensing where we placed the sensor outside the container filled with liquid and also use a Carbon Stick to detect the water level.

But we figured that the results we got were not up to our expectations and after long period of use, the Carbon started to chemically react with water which made this technique not ideal.

So, we finally came up with a solution by using Capacitance Sensing technique. We used capacitive pads on the PCB of the module and did conformal coating over the PCB to make the sensor protect against moisture, dust, chemicals and high temperatures. We believe that this technique will allow you to make accurate water level measurements (±5mm accuracy) easily.

Let’s look at the difference between few water level sensing methods.

	Ultrasonic Distance Sensor	Sensor based on Resistance	Grove - Water Level Sensor
Principle	Ultrasonic Waves	Resistance	Capacitance
Communication Interface	Digital	Analog	I2C
Operating Voltage	3.3/5V	3.3/5V	3.3/5V
Waterproof	No	Yes	Yes

Specifications

2 x 8-bit ATTINY1616 MCUs
Compatible with 3.3/ 5V power supply
Measurement Accuracy: ±5mm
Uses two I2C addresses at the same time: 0x78 and 0x77
Working Temperature Range: -40°C to 105°C
Weight: G.W 9.8g
Dimensions: 20mmx 133mm

Note

The blue oil layer on the surface of the module’s capacitance sensing area should be kept intact. When the oil layer is damaged and the test object is a conductive liquid, the test data may be abnormal.

Attention

When testing, the highest liquid level inserted should not exceed the white dividing line, otherwise it will cause a short circuit.

Applications

Tank overflow detection
Liquid level sensing applications

Hardware Overview

Part List

Grove Water Level Sensor x 1
20cm Grove Cable x 1

Documentations

Hardware Schematics

ATtiny1616 Datasheet

This product is listed in:

Sensors>Liquid & Flow

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Exact shipping can be calculated on the view cart page (no login required).

Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).

We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

$3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
$6+ for Standard Post (typically 6+ business days, tracked)
$10+ for Express Post (typically 2+ business days, tracked)
Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.

Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

International Orders - the following rates are for New Zealand and will vary for other countries:

$11+ for Pack and Track (3+ days, tracked)
$16+ for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount will increase based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

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