Milesight WS201 Smart Fill Level Monitoring Sensor User Guide

: June 10, 2024
: Milesight

Milesight WS201 Smart Fill Level Monitoring Sensor User Guide

Safety Precautions
Milesight will not shoulder responsibility for any loss or damage resulting from not following the instructions of this operating guide.

The device must not be disassembled or remodeled in any way.
To ensure the security of your device, please change the device password during the initial configuration. The default password is 123456.
Do not place the device close to objects with naked flames.
Do not place the device where the temperature is below/above the operating range.
Make sure electronic components do not drop out of the enclosure while opening.
When installing the battery, please install it accurately, and do not install the inverse or
wrong model.
The device must never be subjected to shocks or impacts.

Declaration of Conformity
WS201 conforms with the essential requirements and other relevant provisions of the CE, FCC, and RoHS.

All information in this guide is protected by copyright law. Whereby, no organization or individual shall copy or reproduce the whole or part of this user guide by any means without written authorization from Xiamen Milesight IoT Co., Ltd.

For assistance, please contact
Milesight technical support:
Email: iot.support@milesight.com
Support Portal: support.milesight-iot.com
Tel: 86-592-5085280
Fax: 86-592-5023065
Address: Building C09, Software ParkIII, Xiamen 361024, China

Revision History

Date Doc Version Description
March 17, 2023 V 1.0 Initial version

1. Product Introduction

1.1. Overview

WS201 is a wireless fill-level monitoring sensor that securely monitors a small container’s fill level, especially tissue boxes. Equip with the ToF technology with a high-focusing detecting range, WS201 is best suited for close-range sensing applications with great accuracy. Its ultra-low power consumption and standby mode ensure a durable battery life.

With a special structure design and damp-proof coating, WS201 can work stably in the metal environment and multiple scenarios. Built-in NFC makes it more operable and easy to configure. Compatible with Milesight LoRaWAN® gateway and IoT Cloud solution, users can know the containers’ status and fill level in real-time and manage them effectively and remotely.

1.2. Features

High-focusing detection ranges from 1 to 55 cm with great accuracy based on Time-of-Flight technology
Non-contact detection with wireless deployment
Allow reporting the remaining amount by percentage with pre-set alarm thresholds
Ultra-low power consumption with standby mode, ensuring a durable battery life
Easy to install with its ultra-compact size and equipped with NFC configuration
Highly adaptive to most tissue boxes with a stable signal
Damp-proof coating inside the device to ensure it works well in various bathroom sand other scenarios
Function well with standard LoRaWAN® gateway and network servers
Compliant with Milesight IoT Cloud

2. Hardware Introduction

2.1. Packing List

1 × WS201
Device
1 × CR2450
Battery
1 × 3M Tape 1 × Mirror
Cleaning Cloth
1 × Quick Start
Guide

⚠ If any of the above items are missing or damaged, please contact your sales representative.

2.2. Hardware Overview

2.3. Dimensions (mm)

2.4. Reset Button & LED Indicator Patterns

WS201 sensor equips with a reset button inside the device, please remove the cover for emergency reset or reboot. Usually, users can use NFC to complete all steps.

3. Power Supply

Insert your fingernail or other tools into the center groove and slide it towards the end, then remove the back cover of the device.
Insert the battery into the battery slot with the positive facing up. After inserting, the device will power on automatically.
Align the holes on the rear cover with the WS201, and reinstall the cover to the device.

4. Operation Guide

4.1. NFC Configuration

WS201 can be configured via NFC.

Download and install “Milesight ToolBox” App from Google Play or App Store.
Enable NFC on the smartphone and open “Milesight ToolBox” App.
Attach the smartphone with the NFC area to the device to read the basic information.
Basic information and settings of devices will be shown on ToolBox if it’s recognized successfully. You can read and write the device by tapping the button on the App. Password validation is required when configuring devices via an unused phone to ensure security. The default password is 123456.

Note:

Ensure the location of the smartphone NFC area and it’s recommended to take off the phone case.
If the smartphone fails to read/write configurations via NFC, move it away and try again later.
WS201 can also be configured by a dedicated NFC reader provided by Milesight IoT.

4.2. LoRaWAN Settings

Go to Device > Setting > LoRaWAN Settings of ToolBox App to configure join type, App EUI, App Key and other information. You can also keep all settings by default.

Note:

Please contact sales for the device EUI list if there are many units.
Please contact sales if you need random App keys before purchase.
Select OTAA mode if you use Milesight IoT Cloud to manage devices.
Only OTAA mode supports rejoin mode.

4.3. Basic Settings

Go to Device > Setting > General Settings to change the reporting interval, etc.

4.4. Threshold Settings

Go to Device > Settings > Threshold Settings to enable the threshold settings. When the difference between Tissue Box Depth and Distance is smaller than the Remaining Amount Alarm

Value, WS201 will report the alarm.

4.5. Maintenance

4.5.1. Upgrade

Download firmware from Milesight website to your smartphone.
Open Toolbox App, go to Device > Maintenance and click Browse to import firmware and upgrade the device.

Note:

Operation on ToolBox is not supported during a firmware upgrade.
Only the Android version of ToolBox supports the upgrade feature.

4.5.2. Backup

WS201 supports configuration backup for easy and quick device configuration in bulk. Backup is allowed only for devices with the same model and LoRaWAN® frequency band.

Go to Template page on the App and save the current settings as a template. You can also edit the template file.
Select one template file saved in the smartphone and click Write, then attach the smartphone to another device to write the configuration.

Note: Slide the template item left to edit or delete the template. Click the template to edit the configurations.

4.5.3. Reset to Factory Default

Please select one of the following methods to reset the device: Via Hardware: Hold on the reset button (internal) for more than 10s. Via ToolBox App: Go to Device > Maintenance to click Reset, then attach the smartphone with NFC area to the device to complete the reset.

5. Installation

Paste 3M tape to the back of WS201, then remove the protective layer and place it on a flat surface.

Installation Note

In order to provide the best data transmission, please ensure the device is within the signal rangeofthe LoRaWAN® gateway and keep it away from metal objects and obstacles.
Avoid strong light, like direct sunlight or IR LED, in the detection area.
Do not install the device close to glass or mirror.
After installation, please remove the protective film.
Do not touch the lens of the sensor directly to avoid leaving the fingerprint on it.
The detecting performance will be affected if there’s dust on the lens. Please use the mirror cleaning cloth to clean the lens if needed.
The device must be placed in a horizontal position on the top of the objects so that it has a clear path to the object.
Prevent the device from water.

6. Device Payload

All data are based on the following format (HEX), the Data field should follow little-endian:

For decoder examples please find files on https://github.com/Milesight- IoT/SensorDecoders.

6.1. Basic Information

WS201 reports basic information about the sensor every time it joins the network.

6.2. Sensor Data

WS201 reports sensor data according to reporting interval (1080 mins by default).

6.3. Downlink Commands

WS201 supports downlink commands to configure the device. The application port is 85 by default.

14 rue Edouard Petit
F42000 Saint-Etienne
Tel: +33 (0) 477 92 03 56
Fax: +33 (0) 477 92 03 57
RemyGUEDOT
Gsm: +33 (O) 662 80 65 57
guedot@rg2i.fr
Olivier BENAS
Gsm: +33 (O) 666 84 26 26
olivier.benas@rg2i.fr