OLED 1.3" display problem interfacing with jetson nano

Hi,

I am trying to interface 1.3" OLED display with jetson nano. But I am facing a display problem with that. As u check the below-attached image, u can find that only the top 10% display working, the remaining all just showing black screen. I have tried running all example programs given by the adafruit_python_SSD1306 library. but always 90% of display shows a blank screen.

example code

import time

import Adafruit_GPIO.SPI as SPI
import Adafruit_SSD1306

from PIL import Image
from PIL import ImageDraw
from PIL import ImageFont

import subprocess

Raspberry Pi pin configuration:

RST = None # on the PiOLED this pin isnt used

Note the following are only used with SPI:

DC = 23
SPI_PORT = 0
SPI_DEVICE = 0

Beaglebone Black pin configuration:

RST = ‘P9_12’

Note the following are only used with SPI:

DC = ‘P9_15’

SPI_PORT = 1

SPI_DEVICE = 0

128x32 display with hardware I2C:

disp = Adafruit_SSD1306.SSD1306_128_32(rst=RST)

128x64 display with hardware I2C:

disp = Adafruit_SSD1306.SSD1306_128_64(rst=RST)

Note you can change the I2C address by passing an i2c_address parameter like:

disp = Adafruit_SSD1306.SSD1306_128_64(rst=RST, i2c_address=0x3C)

Alternatively you can specify an explicit I2C bus number, for example

with the 128x32 display you would use:

disp = Adafruit_SSD1306.SSD1306_128_32(rst=RST, i2c_bus=2)

128x32 display with hardware SPI:

disp = Adafruit_SSD1306.SSD1306_128_32(rst=RST, dc=DC, spi=SPI.SpiDev(SPI_PORT, SPI_DEVICE, max_speed_hz=8000000))

128x64 display with hardware SPI:

disp = Adafruit_SSD1306.SSD1306_128_64(rst=RST, dc=DC, spi=SPI.SpiDev(SPI_PORT, SPI_DEVICE, max_speed_hz=8000000))

Alternatively you can specify a software SPI implementation by providing

digital GPIO pin numbers for all the required display pins. For example

on a Raspberry Pi with the 128x32 display you might use:

disp = Adafruit_SSD1306.SSD1306_128_32(rst=RST, dc=DC, sclk=18, din=25, cs=22)

Initialize library.

disp.begin()

Clear display.

disp.clear()
disp.display()

Create blank image for drawing.

Make sure to create image with mode ‘1’ for 1-bit color.

width = disp.width
height = disp.height
image = Image.new(‘1’, (width, height))

Get drawing object to draw on image.

draw = ImageDraw.Draw(image)

Draw a black filled box to clear the image.

draw.rectangle((0,0,width,height), outline=0, fill=0)

Draw some shapes.

First define some constants to allow easy resizing of shapes.

padding = -2
top = padding
bottom = height-padding

Move left to right keeping track of the current x position for drawing shapes.

x = 0

Load default font.

font = ImageFont.load_default()

Alternatively load a TTF font. Make sure the .ttf font file is in the same directory as the python script!

Some other nice fonts to try: http://www.dafont.com/bitmap.php

font = ImageFont.truetype(‘Minecraftia.ttf’, 8)

while True:

# Draw a black filled box to clear the image.
draw.rectangle((0,0,width,height), outline=0, fill=0)

# Shell scripts for system monitoring from here : https://unix.stackexchange.com/questions/119126/command-to-display-memory-usage-disk-usage-and-cpu-load
cmd = "hostname -I | cut -d\' \' -f1"
IP = subprocess.check_output(cmd, shell = True )
cmd = "top -bn1 | grep load | awk '{printf \"CPU Load: %.2f\", $(NF-2)}'"
CPU = subprocess.check_output(cmd, shell = True )
cmd = "free -m | awk 'NR==2{printf \"Mem: %s/%sMB %.2f%%\", $3,$2,$3*100/$2 }'"
MemUsage = subprocess.check_output(cmd, shell = True )
cmd = "df -h | awk '$NF==\"/\"{printf \"Disk: %d/%dGB %s\", $3,$2,$5}'"
Disk = subprocess.check_output(cmd, shell = True )

# Write two lines of text.

draw.text((x, top),       "IP: " + str(IP),  font=font, fill=255)
draw.text((x, top+8),     str(CPU), font=font, fill=255)
draw.text((x, top+16),    str(MemUsage),  font=font, fill=255)
draw.text((x, top+25),    str(Disk),  font=font, fill=255)

# Display image.
disp.image(image)
disp.display()
time.sleep(.1)

What kind of interface is this panel using?

i2c

Sorry that it is not official supported panel interface. I will let other users to share experience.

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