Well, I plugged in an ESP32 development kit with 128 x 64 SPI OLED display (see photo) and, programming in micropython, tried to get it to work. I have done various tests, with SPI, SoftSPI, various pins, etc.
Nothing! It does not work. The screen appears as a mosaic of random pixels. I add a list of the program used.
from machine import Pin,SoftSPI
import ssd1306,framebuf
from time import sleep
vspi = SoftSPI(baudrate=1000000, polarity=0, phase=0, bits=8, firstbit=SoftSPI.MSB, sck=Pin(18), mosi=Pin(23), miso=Pin(19))
oled=ssd1306.SSD1306_SPI( 128, 64, vspi, dc=Pin(17), res=Pin(5), cs=Pin(16))
oled.init_display()
sleep (5)
oled.text('Hello, World 1!', 0, 0)
oled.show()
Some functions work correctly: invert, turn off, turn on, but not the text () or show () function.
The actual pinout is
- PIN WIRING -
OLED ESP32
Vdc 3.3V
GND GND
SCK GPIO 18
SDA GPIO 23
RES GPIO 5
DC GPIO 17
CS GPIO 13
What happens?
What am I doing wrong?
Can anybody help me?
