Adafruit Grayscale 1.5" 128x128 OLED Display

EL Wire/Tape/Panels, LEDs, pixels and strips, LCDs and TFTs, etc products from Adafruit

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LeonWBA
 
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Adafruit Grayscale 1.5" 128x128 OLED Display

Post by LeonWBA »

Hi,

I've purchased the Adafruit Grayscale 1.5" 128x128 OLED Display (https://learn.adafruit.com/adafruit-gra ... y/overview) and the ssd1327_test Arduino program (https://github.com/adafruit/Adafruit_SS ... st.ino#L31) won't function correctly.

I'm using an Arduino Nano 33 BLE and connected the following pins up:
3.3V -> Vin
GND -> GND
Clk -> SCL (A5)
Data -> SDA (A4)

Do you have an idea as to why this OLED display won't function correctly?

Thanks!

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blnkjns
 
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Re: Adafruit Grayscale 1.5" 128x128 OLED Display

Post by blnkjns »

My first thought was use hardware I2C pins, not A4/A5 as those are UNO pins, put apparantly the BLE uses that weird combo as well.
My second thought is that it has to do with the board library. What NRF52 board library do you use?

Image
It is this board?

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adafruit_support_carter
 
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Re: Adafruit Grayscale 1.5" 128x128 OLED Display

Post by adafruit_support_carter »

It's most likely a connection issue. It could be incorrect pins, either being used or being specified in code. Or it could be mechanical, like soldering.

Try an I2C scan to see if the OLED address can be seen:
https://learn.adafruit.com/scanning-i2c ... es/arduino

If that still does not work, please post a photo of your setup showing how everything is connected.

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