SSD1306 display shifted 1 pixel to the right?

[gerardwr]

Hi,

I attached an SSD1306 Oled today on my Ka-Radio32 ESP32. It's an I2C display without an RST line.

The display works (almost) perfectly, but it looks like the pixels that should be in the last column on the right are displayed in the first column on the left (see arrows in my JPG).

It seems like the entire screen is scrolled to the right by 1 pixel, and the last pixel of the line is displayed in the 1st column of the Oled.

I have tried the following, but it makes no difference

• resetting the ESP32
• removed power from the ESP32/Oled
• replaced the Oled by another Oled

Karadio version is V0.9 R2.

Thanks for an excellent piece of software!

[gerardwr]

I solved the problem.

The default configured display is an SSD1106 (lcd.type = 0).

To configure for an SSD1306 you have to set lcd.type to 1, using the serial interface. The correct command is:

lcd.type("1")

Response is

##LCD is in 1 on next reset#

After reset the picture on the Oled display is fine!

Thx.

[gerardwr]

Setting the LCD type can also be done using telnet. Did it on my iMac like this:

imac-van-gerard:~ gerard$ telnet 192.168.0.56
Trying 192.168.0.56...
Connected to 192.168.0.56.
Escape character is '^]'.
Karadio telnet
> lcd.type("1")
##LCD is in 1 on next reset#
> sys.boot