REM based Chemical Controller Hardware

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Sep 6, 2017
22
Penn Valley
I am currently running a Rasberry Pi4 with the Atlas Scientific i3 InterLink and pH, Temp, and ORP sensors. I use the Atlas Iot software to push these values to MQTT for HomeAssitant.

I would like to convert to REM. It appears to support the Atlas probes out of the box.

I would like to add the following controls:
- (2) Relays - (1) for Chlorine and (1) Muriatic Acid - Stenner Integrator series can be Started/stopped by dry contact.
- (1) Digital Input - for a Flow Switch
- (1) RTD - for outdoor temperature

The Sequent Multi-IO board v1.3 - SKU: SM-I-021. Seems to meet all these requirements.

I am even thinking about adding an electrical conductivity probe to the I3 removing the rtd chip and using the Sequent board for pool temperature as well. Still done with just 2 boards.

REM mentions compatibility with Sequent MEGA-IND and MEGA-BAS I/O Boards. Is this one of the IO boards REM is compatible with?

If not, can anyone recommend board or boards to accomplish this?
 
The Sequent 8 relay board will handle your relay needs. It’s a bit overkill but does not hurt to have extra relays for something you might want to control in the future.

For the Temp and digital inputs the Mega-Bas is probably the most popular board that most of us use around here.

Both are fully supported by the REM
 
Thanks for the info. I have purchased the sequent 8 relay,mega bas, and industrial watchdog ( I loose power somewhat frequently). With the atlas board, I get ph and Orp. All this is running well. I am still debugging my serial link to my existing Jandy Pda8, but this is coming along well.

I recently picked up 2 Stenner pumps and a flow switch. Need to incorporate into the system. As season is getting late, this will likely not occur until next year.
 
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