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Hello All,

 

Does  anyone know how to get readings from a PH sensor , ORP sensor , and Conductivity Sensor into HC2?

 

I know with temperature sensor is ok but what about other sensors?

 

 

Cheers

 

Christos

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All, I want to report back about my status: - pressure : Amazon order received but pressure meter does not fit . Need to find a solution for this. I don't know if a bend is allowed to screw

OK After some time Sensor modules came ....   Anyone interested is this from Ali Express https://www.aliexpress.com/item/4001135274390.html?spm=a2g0s.9042311.0.0.48444c4d0ddsp3  

@SmartHomeEddy   I use it only to power the RGBW module the UBS sensor that is connected to the level controller and the PH and ORP sensors ....   All of them are powered by this t

Posted Images

OK So doing some research i have found that i can use the RGBW that has 4 1-10v input.....

 

and also i have found this ph that can convert the signal to 1-10v ...

 

https://www.aliexpress.com/item/32869108210.html?spm=2114.search0302.3.8.12d725e0J5n0IX&ws_ab_test=searchweb0_0,searchweb201602_0,searchweb201603_0,ppcSwitch_0&algo_pvid=df9f3685-341f-4c4b-844e-9a8f13221c50&algo_expid=df9f3685-341f-4c4b-844e-9a8f13221c50-1

 

i don't know if it will work but i guess i have to try ..

 

So i will order some items and start experimenting.

 

 

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  • 1 month later...

OK After some time Sensor modules came ....

 

Anyone interested is this from Ali Express

https://www.aliexpress.com/item/4001135274390.html?spm=a2g0s.9042311.0.0.48444c4d0ddsp3

 

https://www.aliexpress.com/item/32869108210.html?spm=a2g0s.9042311.0.0.48444c4d0ddsp3

 

https://www.aliexpress.com/item/32857288870.html?spm=a2g0s.9042311.0.0.48444c4d0ddsp3

 

Must Order the 1-10v output

 

Connecting them to the RGBW sensor i finally can see the Ph ORP and Filter Pressure inside the Fibaro Interface...

 

What i am trying to do next is to Build my own Salt Chlorinator and control it via the HC2

 

 

 

IMG_2641.jpg.30b581bcf5a8407f44ce945031947d73.jpg

 

 

 

 

 

 

 

IMG_2640.jpg.c9f81a31dd7a0fc7f848216aceb50d4d.jpg

 

 

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@christos
Good to hear you found your products.
For what is the purpose? Is it for a pool? If it is, I'm rather interested. I just installed one and currently I can only read the temperature via Fibaro smart implant.
I'm also interested in PH and wondering what you're doing with the pressure sensor.
Currently I'm also looking into water level measuring (low level measuring). I didn't find one yet because I'm not sure which one to buy for salt watering.
It seems that contactless sensors exist. See link below. But I don't know where to buy and if they are compatible with the smart implant.
https://www.abestmeter.com/non-contact-level-sensor-switch/

 

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Posted (edited)

@wpeeters

 

Yes That is for the Pool.

 

I get the Ph Values and ORP values from the modules i bought from Aliexpress.

 

The output of the modules go into the RGB module which is configured as analog inputs ...

 

With the PH reading i am controlling a dosing pump which feeds HCL into the pool

 

With the ORP reading i am controlling a custom Power supply which is connected to a Zodiac Cell and produces chlorine

 

 

I went with the Zodiac Tri Large which makes about 35gr/Hr Chlorine .... 

 

This cell needs about 17Volts and 7.6A in a pool with 7000ppm Salt concentration .....

 

 

i know its a bit salty ... :)

 

 

 

 

With the custom Power supply i had a challenge of having to reverse polarity going to the cell in order to have cleaning function ...

 

i decided to use a simple mechanical timer and a conductor that reverses the polarity every 3 hours for 3 minutes ...

 

i could have done that with a fibaro lua ( calculate working hours of cell and after 3 hours turn on one of my modules for 3 minutes ... as long as the pool pump is on !! ) the output of that module would drive the auxiliary conductor coil and thus reversing the polarity )

but since my coding is very limited i went with this route

 

 

With the pressure sensor i get reading of the pressure inside sand filter and when pressure rises above 0.9 Bar i get a notification to backwash my filter

 

61823360902__B7FE89A9-026B-4327-93A6-2D1EB219C4BE.JPG.08ee8ef91b476abb8b46d59a22251ed3.JPG

 

 

 

It too me a day to do all this and i'm almost ready now

 

 

Very time consuming but i love it

 

 

Untitled.jpg.58ca677a30d1d3ae54af8311709f3942.jpg

 

I also found a nice VD from the fibaro french forum which calculates the working hours of the pool pump based on the water temperature ,....

 

 

Very very nice VD

 

 

would have been ideal to build another VD and have all the other controls ....  i hate block scenes

 

maybe @Sankotronic may have something in his UHAS Module .... Who knows

 

 

 

Edited by christos
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Most Critical part i see here is that Salt water Chlorinator AND Ph Dosing Pump must NEVER operate unless the Pool Pump in in operation ...

 

using just block scenes i don't think it is so safe to do so...

 

i have set auto switch off for the dosing pump , but i found out that if the scene is active ( block scene for dosing ) then the module does not switch off .... weird ....

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Nice setup you have. Very interesting, although I don’t have a swimming pool, I do have a pond. 

How did you calibrate the readings on the RGBW switches?

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Hi, my pond is self regulating.

I need or on the wish list is the water level>> it will be filled with rain water.

Now its manual switch on or of.

//Sjakie

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My pond is randomly filled with rainwater 😀

 

On my wish list is water quality and maybe water level. 
 

 

 

Edited by SmartHomeEddy
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PH Sensor and ORP sensors are calibrated on the Module from AliExpress .... they just send 1-10v into the RGBW module

 

in Fibaro configuration i have this

 

RGBW.jpg.9d1d3c4831a7746dda83ca37805da4ca.jpg

 

 

scale

As for the Level control i have inserted a Binary switch into this

 

https://eu.ccei-pool.com/en/buffer-tank-level-regulation/134-niva-5.html

 

 

so when a level sensor is breached i get that inside the Fibaro ....

 

from there on i just use block scenes to do what i want

 

 

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On 8/4/2020 at 9:45 AM, christos said:

Must Order the 1-10v output

 

On 8/5/2020 at 7:12 PM, christos said:

PH Sensor and ORP sensors are calibrated on the Module from AliExpress .... they just send 1-10v into the RGBW module


Thanks @christos The basics look quite simple, just a voltage from the sensor to the RGBW switch with a reading of the value. 

 

The ORP sensor comes in two models, 

 

Model 2: -1000-1000MV 0-10V (ORP sensor + ORP module  )

Model 5: -2000-2000MV 0-10V (ORP sensor + ORPmodule  )

 

Which one do you use?

 

 

Edited by SmartHomeEddy
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On 04/08/2020 at 18:34, wpeeters said:

@christos
É bom saber que você encontrou seus produtos.
Qual é o propósito? É para uma piscina? Se for, estou bastante interessado. Acabei de instalar um e atualmente só consigo ler a temperatura via implante inteligente Fibaro.
Também estou interessado em PH e gostaria de saber o que você está fazendo com o sensor de pressão.
Atualmente também estou pesquisando a medição do nível de água (medição de nível baixo). Não encontrei ainda porque não tenho certeza de qual comprar para regar com sal.
Parece que existem sensores sem contato. Veja o link abaixo. Mas não sei onde comprar e se são compatíveis com o implante inteligente.
https://www.abestmeter.com/non-contact-level-sensor-switch/

 

I think it's a good solution for the pool not to be without or with a lot of water

2ABC5D3E-5C14-440B-849C-C7495D377FDD_1_105_c.thumb.jpeg.5279d521ba154f9a9fd2494dfdbdd922.jpeg4F740AE7-7318-44A9-8504-02F699300FED_1_105_c.thumb.jpeg.00520378a2a8b35b623d7e4c979a12fa.jpeg

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@christos Thanks

 

I saw this picture from https://www.yokogawa.com/library/resources/white-papers/basics-of-orp/

 

image.jpeg.649193163a8255dc4cc8d18a066c0c8a.jpeg

 

Then -1000 to +1000 will be enough indeed. 
 

 

btw I want to use it for a pond, not a pool. 
 

From https://koiorganisationinternational.org/blog-entry/what-are-orp-meters-used 

 

The number given by an ORP (ORP stands for Oxidation Reduction Potential) meter is a direct index to the pollution levels of the pond.  Unlike most of our other water quality readings, lower numbers are bad, while higher numbers are good.  Readings below 150 indicate a pond in need of significant improvements.  250-400 is the range of healthy ponds, and conditions which promote good fish growth.  High numbers between 475 and 550 reflect active Potassium Permanganate use, which should kill Koi parasites without harming the Koi.  Readings over 550 should not be allowed to persist for more than 15 minutes because of likely damage to the Koi’s gills. 


 

 

 

 

Edited by SmartHomeEddy
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@SmartHomeEddy

 

yepp

 

but know this

 

Measuring oxidation reduction potential (ORP) is a safe and very common way of verifying whether your pool has the correct level of chlorine. However, ORP is not a direct measurement of chlorine. Direct chlorine measurements are given in parts per million (ppm), and many pool owners and operators know that the recommended level of chlorine is 1.0-3.0 ppm. ORP probes measure the sanitization activity of chlorine by measuring its ability to oxidize contaminants in the pool. An ORP measurement is expressed in millivolts, not ppm. The minimum recommended ORP value for a pool is 650mV.

 

Thats why im targeting 650 to 750mv

 

you should check free chlorine after you reach your ORP target.....  do not exceed 3.0ppm

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Posted (edited)

@SmartHomeEddy

 

I use it only to power the RGBW module the UBS sensor that is connected to the level controller and the PH and ORP sensors ....

 

All of them are powered by this transformer .....

 

For added safety the 240V is coming from an 30mA RCD

 

i'll take a pic when i get home

Edited by christos
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