WHADDA WPM356 TDS Water Quality Sensor User Manual
- June 4, 2024
- WHADDA
Table of Contents
MANUAL
TDS (TOTAL DISSOLVED SOLIDS) WATER QUALITY SENSOR
WPM356
Introduction
To all residents of the European Union
Important environmental information about this product
This symbol on the device or the package indicates that disposal of the device
after its lifecycle could harm the environment. Do not dispose of the unit (or
batteries) as unsorted municipal waste; it should be taken to a specialized
company for recycling. This device should be returned to your distributor or
to a local recycling
service. Respect the local environmental rules.
If in doubt, contact your local waste disposal authorities.
Thank you for choosing Whadda! Please read the manual thoroughly before
bringing this device into service. If the device was damaged in transit, do
not install or use it and contact your dealer.
Safety Instructions
Read and understand this manual and all safety signs before using this
appliance.
**** For indoor use only.
- This device can be used by children aged 8 years and above, and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning the use of the device in a safe way to understand the hazards involved. Children shall not play with the device. Cleaning and user maintenance shall not be made by children without supervision.
General Guidelines
- Refer to the Velleman® Service and Quality Warranty on the last pages of this manual.
- All modifications of the device are forbidden for safety reasons. Damage caused by user modifications to the device is not covered by the warranty.
- Only use the device for its intended purpose. Using the device in an unauthorized way will void the warranty.
- Damage caused by disregard of certain guidelines in this manual is not covered by the warranty and the dealer will not accept responsibility for any ensuing defects or problems.
- Nor Velleman nv nor its dealers can be held responsible for any damage (extraordinary, incidental, or indirect) – of any nature (financial, physical…) arising from the possession, use, or failure of this product.
- Keep this manual for future reference.
What is Arduino®
Arduino® is an open-source prototyping platform based on easy-to-use hardware
and software. Arduino® boards are able to read inputs – a light-on sensor, a
finger on a button, or a Twitter message – and turn them into an output –
activating a motor, turning on an LED, or publishing something online. You can
tell your board what to do by sending a set of instructions to the
microcontroller on the board. To do so, you use the Arduino programming
language (based on Wiring) and the Arduino® software IDE
(based on Processing). Additional shields/modules/components are required for
reading a twitter message or publishing online. Surf to
www.arduino.cc for more information
Product overview
Use this sensitive measurement board to determine the quality of water based
on its total dissolved solids or TDS. Find out whether your tap water is
clean, or keep an eye on your aquarium water, and more!
This set includes the measurement board as well as a detachable water-proof
measurement probe of 60 cm.
The board has a standard 3-pin header interface connector and has a simple
analog voltage readout.
The TDS measurement ranges from 0 – 1000 ppm and has an accuracy of ± 10 %
full-scale at 25 °C.
Specifications:
Supply voltage: 3,3 – 5,5 V DC
Sensor output voltage: 0 – 2,3 V DC
Working current: 3 – 6 mA
TDS measurement range: 0 – 1000 ppm
TDS measurement accuracy: ± 10 % Full-Scale (@ 25 °C)
Module interface connector: 3pin pin-header
Electrode interface connector: JST XH2.54-2P
Cable length: 60 cm
Dimensions (W x L x H): 46 x 32,2 x 9,5 mm
Wiring description
| Pin | Name | Arduino ® connection |
|---|---|---|
| – | Ground | GND |
| + | Supply voltage (3,3 – 5,5 V) | 5V |
| A | Analog sensor output signal | Analog Pin (e.g. A1) |
| Pin | Name | Arduino ® connection |
| – | Ground | GND |
Example program
You can download the example Arduino® program by going to the official Whadda
github page:
github.com/WhaddaMakers/TDS-water-quality-
sensor
- Click the “Download ZIP” link in the “Code” menu:
- Unzip the downloaded file, and browse to the example_code folder. Open the example Arduino® sketch (example_code.ino) located in the folder.
- Connect your Arduino-compatible board, make sure the correct Board and connection port are set in the tools menu, and hit Upload
Modifications and typographical errors reserved – © Velleman Group nv. WPM356
Velleman Group NV, Legen Heirweg 33 – 9890 Gavere.
References
- GitHub - WhaddaMakers/TDS-water-quality-sensor: Example code for the Whadda TDS water quality sensor (WPM356).
- Whadda - Exciting Electronics
- GitHub - WhaddaMakers/TDS-water-quality-sensor: Example code for the Whadda TDS water quality sensor (WPM356).
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