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Need to check TFT st7735s MIDAS LCD - MCT0144C6W128128PML
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Need to check TFT st7735s MIDAS LCD - MCT0144C6W128128PML

by rutvij on Tue Sep 27, 2016 5:43 am

Hello Folks,
I am testing a LCD which is internally having a LCD controller ST7735S The LCD is MIDAS MCT0144C6W128128PML.

While searching I found this very well explained and worth watching link as per below.

"https://cdn-learn.adafruit.com/downloads/pdf/adafruit-1-44-color-tft-with-micro-sd-socket.pdf".

I followed this link for the above LCD and connected with ardunio uno mcu and took the library code as mentioned in the document.

I converted all the pin's logic level to 3.3V using voltage divide circuit and hence i am able to get 3.3V.

NOTE:- i dont have break out(with SD card) board shown as per the link

I commented the below lines

// Use this initializer if you're using a 1.8" TFT
// tft.initR(INITR_BLACKTAB); // initialize a ST7735S chip, black tab

and un-commented the below lines

// Use this initializer (uncomment) if you're using a 1.44" TFT
tft.initR(INITR_144GREENTAB); // initialize a ST7735S chip, black tab

after doing this above i uploaded the code into MCU but unfortunately I didn't see anything on the LCD.

So my main question is will the above mentioned link's code works ST7735S variant ?

What could be the possible cause ?

Please let me know if i can provide any further details .

Any help on this would be greatly appreciable.

Thanks & Regards,
Rutvij

rutvij
 
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Re: Need to check TFT st7735s MIDAS LCD - MCT0144C6W128128PM

by adafruit_support_mike on Wed Sep 28, 2016 1:14 am

We've had to deal with several variants of ST7735-based displays. That's why the code has the _TAB specifiers.

You'll probably need to find as much documentation as you can for the specific display you're using, and see how it compares to the code in our libraries. You may end up needing to write your own library, but our code should give you a good head start.

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Re: Need to check TFT st7735s MIDAS LCD - MCT0144C6W128128PM

by rutvij on Wed Sep 28, 2016 5:45 am

Hi Mike,

Thank you very much for quick the reply.

Could you tell me what should I refer in-order to see the changes as per my LCD and which documentation would be proper?
I am currently referring to ST7735S_V1.5 pdf documentation and code given by you guys.

Also could you share which documentation you guys referred which lead you to get a successfully source code development (your test LCD's documentation or links)?

This would be greatly appreciable.

Thanks & Regards,
Rutvij

rutvij
 
Posts: 3
Joined: Tue Sep 27, 2016 5:30 am

Re: Need to check TFT st7735s MIDAS LCD - MCT0144C6W128128PM

by adafruit_support_mike on Thu Sep 29, 2016 4:38 am

There's no guarantee that our documentation will be relevant to a display you got from somoene else. You need to contact the vendor who sold you the display and see what information they can give you.

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Re: Need to check TFT st7735s MIDAS LCD - MCT0144C6W128128PM

by rutvij on Thu Sep 29, 2016 5:22 am

Hi Mike,

Thank you very much for guiding me by telling where should I look into.

From your experience of working with st7735 LCD controller LCD could you be able to tell me that which settings will relay on specific LCD and which settings are on st7735 (LCD controller )?

Thanks & Regards,
Rutvij.

rutvij
 
Posts: 3
Joined: Tue Sep 27, 2016 5:30 am

Re: Need to check TFT st7735s MIDAS LCD - MCT0144C6W128128PM

by adafruit_support_mike on Fri Sep 30, 2016 2:07 am

I'm afraid I don't have any information about that. We use the datasheets.

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