‮ezaM MazeW

hi

Connect ST7789 to ESP32

Wiring

ESP32	ST7789
GND	GND
3v3	VCC
D18	SCL
D23	SDA
D4	RES

Connect a 5V relay

I had issues connecting the relay to the wenmos d1-mini (ESP8266 or ESP-12F), turns out you must use the 3v3 pin not 5V.

relay	d1
VIN	3v3
GND	G
IN	D2

You can use any pin you want for IN, but check diagram below for safe GPIO pins that aren't used by something else.

#Oh no! this package could not be found aka how to fix oracle linux 7 not having any repos tl;dr run

yum install https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm yum repolist

Guide on connecting a ST7789 display to an Arduino Nano.

I recently decided to order an arduino nano and a tft display from AliExpress. When I looked up online it took me some time to find a clear guide how to connect the display to the arduino, either the display had different pins or it was a slightly different model, but with some trial and error, I managed to get it to work.

What you'll need for this:

1x Arduino Nano
1x AdaFruit 1.3" 240x240 ST7789 display
6x jumper wires or whatever else you can use to connect

Connecting display to the arduino

#Hi!

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	program order;

	uses
	crt;

	var
	a: array[1..10] of char;
	d:char;
	i,c,r: integer;