can three LCD 8 X 1 modules be used with one I2C module?

[lesthegrngo]

Guys, I want to use three of these modules on the countermeasures panel

 

https://www.ebay.com/itm/8x1-LCD-Display-Character-Module-w-Tutorial-HD44780-FFC-Connector-Black-on-White/302064225493?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649

 

They use 16 pin FCC connectors that I have adapters to go to 16 pin 0.1" headers, and what I was hopping was that I could use one of these below to connect all three so that I can just use one Nano to drive it

 

 

https://www.ebay.com/itm/10pcs-PCF8574-LCD1602-Adapter-I2C-IIC-TWI-Serial-Interface-Module-Board-LCD-Conv/382951000012?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649

 

I believe that you can do this with a MAX7219 setup, but can't find the ready made modules

 

Is this possible?

 

Cheers

 

Les

[tekadept]

You should be able to have 3 of thesePCF8574 LCD1602 Adapters no problems, with those 3 address pads on it you can have up to 8 devices on I2C and drive it with your nano.

Edited November 25, 2019 by tekadept

[lesthegrngo]

You should be able to have 3 of thesePCF8574 LCD1602 Adapters no problems, with those 3 address pads on it you can have up to 8 devices on I2C and drive it with your nano.

 

Thanks, so I would need the three adapters, but just one Nano, or can I connect all three LCD modules to one adapter? I'm not brilliant with this stuff, so apologies if my question sounds a bit stupid!

 

Cheers

 

Les

[longuich]

You need three i2c adapters and change the i2c addresses on them.

 

 

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