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Multiple OLED or TFT displays driven by single Arduino?
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Multiple OLED or TFT displays driven by single Arduino?

by cbonsig on Sat Jan 28, 2012 3:26 pm

I'm working on a project that (ideally) would have a 3" x 6" monochrome OLED display. And in a perfect world, it would also have a touchscreen, but let's put that aside for a moment...

Since this display doesn't exist, it seems like the best alternative is to use multiple OLED screens (SSD1306 like http://www.adafruit.com/blog/2011/01/06 ... ic-display), or multiple TFT screens (2.8" like http://www.adafruit.com/products/376). Is it possible to control multiple OLED or TFT screens from one Arduino? I'm familiar with the I2C bus, where multiple devices can chain together, each with their own adderess... But I don't know if/how this might work with SPI and the higher data demands of these screens.

So is this feasible with an Arduino type microcontroller? Or should I give up on that approach, and think about a Radpberry Pi driving a 7" touchscreen, or something like that?

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Re: Multiple OLED or TFT displays driven by single Arduino?

by adafruit on Sat Jan 28, 2012 3:36 pm

unfortunately as to 3"x6" OLED - no such thing exists. the ones we have are very very small, its not really possible to drive that many mini OLED displays and they wont line up :/ there is a future beaglebone 7" TFT display but its not out yet and there's no ETA. the biggest display we stock is the 2.8" but you can only drive one at a time from an Arduino.

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Re: Multiple OLED or TFT displays driven by single Arduino?

by cbonsig on Sun Jan 29, 2012 12:28 pm

Thanks for the quick reply! Too bad....

But I think that the 32x32 RGB LED Matrix might be able to do the job. 5"x5" is a nice size. Now, the wish list is for a 5"x5" touchscreen to slap on the front. They don't seem to exist in that size though, so I'll have to think about alternatives.

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Re: Multiple OLED or TFT displays driven by single Arduino?

by adafruit on Sun Jan 29, 2012 12:47 pm

agreed, for a big display the LED matrices are the way to go at lower resolution :)

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Re: Multiple OLED or TFT displays driven by single Arduino?

by cbonsig on Sun Jan 29, 2012 1:04 pm

Yep... For the touch screen, it looks like Adafruit has one that's smaller than I would need:
https://www.adafruit.com/products/333

But it looks like they can be found in a variety of sizes from component suppliers, such as:
http://shop-on-line.tvielectronics.com/ ... ch-screens

Thanks again!

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Re: Multiple OLED or TFT displays driven by single Arduino?

by masterleo on Sun Mar 19, 2017 7:55 am

Hello, I like the topic of the post, I have the same problem too,
I would like to have three oled display in my project, connected to a single Arduino. With less cable as possible. So 3 wire to connect al my displays in chain would be ok. Could you help me to choose the right product or the right lcd backpack to chain displays ? I already read that i can buy the 128*64 display and declare multiples displays, that sounds good !

Mabe this display because chaining LCDs with 16pins seems to be easy with a back pack I can try it with this one:
https://www.adafruit.com/products/823
Or if it's possible I would choose this one :
https://www.adafruit.com/products/2674

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Re: Multiple OLED or TFT displays driven by single Arduino?

by n0ukf on Sat Feb 10, 2018 4:32 am

For SPI I've only seen topics talking about connecting up to 2 displays (unless they are to all be cloned displays, then I've seen several in parallel mentioned).

For I2C I think several displays could have different content as long as you could make them each different addresses. But I think most I've seen are hardwired at one address, not switchable.

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