Arduino Project: Real time clock DS3231 and 1.8 Color TFT display ST7735

Building a Real Time Clock (DS3231) with Arduino and a 1.8" color TFT display (ST7735) is very easy. All you need to do is to follow the steps we show in this video. The cost of the project is very low as well. You can build this project with around 10$. Impressive isn't it? That's the power of Arduino and open software.

The code of the project is very simple and it is described in the video. In the .zip file that I share, you can find both version of the code, with temperature in Degrees C and degrees F.

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Code & Parts
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[JoeDplummer_]

Great! RTC project very fun to build. Works and looks very good !
Thank you!

[tweety]

hi...video at 4:08.the screen flicker to update the value.this is big problem with this lcd library.if you can fix this this it would be great.

[viisteist]

well... after the errors are sorted out, i just get really weird hazy lines(4 in total) on the screen and do not see any text at all...?

[nielslarsen]

Hello Nick. Thank you for the educational motivation and supports.
I am trying to get the 1, 8" TFT display and Ds3231 to work, as per your video, but is struggling with the GFX.h library. I cant find the right one, or version. When I compile i get this message fatal error: Adafruit_GFX.h: No such file or directory" ??

What am I doing wrong?

Thank you Niels,
Denmark

[Cambria]

Thank you sir, very good teaching. I want to build this but I have a macintosh. I put the ide from arduino but the vendor says the Uno not good for mac. Must be pc to flash with sketch?

[dinoslmn]

Hi, setRTCTime() command will synchronize the PC system time with ds3231 module ?

[MrStefi]

Hi, I would like to ask about the time and date how to enter it, because it doesn't work for me.But everything works. thanks for the reply.

[grahambrown]

Your code is generating the following error: Compilation error: redefinition of 'Adafruit_ST7735 tft'
and stops at line 14
Adafruit_ST7735 tft = Adafruit_ST7735(TFT_CS, TFT_DC, TFT_RST);
I installed the Adafruit library ST7735 and ST7789, version 1.10.4
Any ideas please?

[gersomadu]

I want to replace the min temperature and max temperature at the bottom of the display and make it an alarm? How will i change that in the code ?

[andresguerrero]

thanks for the project and keep going greetings from mexico.

[raybright]

would be great to use the TFT on your previous data logger as well as the usual storage to SD card.

[tumenbayarmunkhjargal]

How about touch screen function? what do i do ?

[markweir]

Hi Nick, I have made this project and it seems to rum but my screen looks milky most of the time. If I press the Reset I get what looks like a normal screen for a few seconds until the reset happens.  Any thoughts?  I have checked my wiring, hardware and another TFT module.

[harshityashwardhan]

Hey need ur help can we add a realy so when the temperature reach a set limits it turn on the fan ....

[steve]

Never mind I found your video on connecting and using the 1.8 TFT display.

[danielnasif]

Do you have a video or could you make one that would use the time as a condition that if the time is between (X:XX) and (X:XX) then a relay is activated or something to that nature?

[steve]

Hello, great project thanks for sharing. I didn't hear what you said about how to connect the 1.8 TFT display, could you tell me where to look for the connections.
Thanks,
Steve

[aldrins]

I've made it! Thanks for the nice tutorial.

[robertbatchelor]

Thank very much I have it up and running in few hours I enjoy is very much but which line of code to change the order of date also to change time to a 12 hour format also incorporate  DTH11 or DTH22 .. Please when down loading software go slower and show more details.. any code I change would gladly share it with you for future subscribers..
Thank You,
Sincerely, Robert B
USA, NJ

[jaarden]

Great project but i get an error code "redefinition of 'Adafruit_ST7735 tft'" Can you solve the problem