Plugging in I2C display directly into arduino UNO R3 Wifi ATMega + ESP8266 clone board pins

is it possible to plug in a 4 pin spi lcd display into the gpio port on an arduino uno board as if it was a shield. is it possible out of the box. ive never touched an arduino before. can someone help?


like one of these spi displays ^^^

But you show an I2C PCB.


A RoboRed has pin headers for I2C.

The ICSP header has SPI, but you need pin D10 also.

Dupont cables to these are the way to go.

Welcome to the forum

If the display uses 5V then you can connect it to the Uno but you will need to connect the MISO, MOSI, CLK and SS pins of the display to the corresponding pins of the Uno. However, it is very unlikely that they will be laid out to allow the display to be plugged in directly so you will need jumper wires to connect them

Note that a Uno does not have a "GPIO port" as such, rather 20 or so pins are exposed to allow connections to be made to them

ok so how would i go about doing that with this board because this is the one i ordered and the display i showed on my post is also the one i ordered yesterday? its not an official board so im kind of skeptical and its one with the atmega and the esp8266 in it


so it wouldnt be possible to use it as if it was a shield over top my arduino. like at all. i may need to order jumper cables now

The display you posted a picture of uses the I2C interface, not the SPI interface

You need to use jumper wires to connect the two boards

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