Arduino nano and St7789v

Other Hardware Displays
1

Hi there.... I want help to wire and use Waveshare tft screen 2inch st7789v with arduino nano.. Any help?? Thanks in advance

2

Post a link to the actual screen that you have bought e..g. Ebay sale page

3
4

Thanks for the link.

From your link:

SPECIFICATIONS
Oparating Voltage: 3.3VDC

This means that every signal must have a level shifter. And you must supply 3.3V to VCC pin.

SYMBOL DESCRIPTION
VCC Power (3.3V input)
GND Ground
DIN SPI data input
CLK SPI clock input
CS Chip selection, low active
DC Data/Command selection (high for data, low for command)
RST Reset, low active
BL Backlight

Incidentally, I read your message on a Tablet. But I could only access your link from a PC. i.e. an hour later.

If you had provided a clickable link in the original message, you would probably got a reply immediately from someone, somewhere in the world. Which is how to get the best use from a Forum.

David.

5

Thank you.. How can I wire this tft to arduino nano and how t use because I am new to this

6

You have to buy level shifters e.g. 8-channel because you have 6 signals.

Or buy resistors. And use them as potential dividers.

Life is much simpler if you buy a proper 3.3V Arduino like Zero or Due.
Or a STM32 module like a BluePill.

Then you can connect directly to the display pcb without any level shifters.

David.

7

Without level shifters I can't do anything ;;

8

alexasos_29:
Without level shifters I can't do anything ;;

That is correct.

But you can always buy a Uno. And buy a Uno Display Shield.
Plug the Shield into the Arduino and all the "wiring" is 100%. All the level-shifting is 100%.

David.

9

Thanks for your help