2.8 tft spi v1.2 connect without resistor to unoR3 / esp32s

Using Arduino Displays
1

Hello guys :slight_smile:
That’s my first try to connect 2.8 tft spi 240x320 v1.2 to UNO r3 ch340 or esp32s cam.

Please tell me, I must buy and connect resistor form 5v to 3.3v ? Or I can use what I have now ?

IMG_1296
IMG_12963024Ă—4032 1.84 MB

IMG_1297
IMG_12973024Ă—4032 2.03 MB

image
image3024Ă—4032 2.67 MB

2

Hello and Good day.

Please see this project
https://forum.arduino.cc/t/solved-cabling-a-2-8-tft-spi-240x320-v1-2-display-to-an-arduino-mega-or-uno/1176294

And you need a datasheet for your display and then you need to read it carfully and check the supply voltage.

Best regards Mascho11

3

The ESP32CAM uses 3.3V logic levels so you could connect your 3.3V logic display directly.

However, the ESP32CAM does not have enough spare IO pins to use the display AND the ESP32CAM SD card.

4

Thanks , but please tell me
IMG_1304

It’s not a solution?

5

If you use 3,3V, you must bypass the 5V to 3,3V regulator. If you use 5V, you don't need to solder the jumper. Check the datasheet to see that the input pins are 5V resistant or not. If not, you need a levelshifter.

6

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