128x32 OLED I2C display only shows "snow"

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ted0h
 
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128x32 OLED I2C display only shows "snow"

Post by ted0h »

I’m having some trouble getting my 128x32 OLED display to work (I2C interface). I believe I have all the wires properly connected to an Uno (actually Ruggeduino): RST to digital 4, SDA to A4, SCL to A5, Vin to 5V, Gnd to Gnd. I’ve tried the sample sketch, but all I get is “snow” on the screen. I changed the ssd1306.h file to have the proper display. I even tried using different jumper wires. I put some Serial.println in the program to see where it’s failing; it looks like it will execute display.begin, but never runs the display.display() command. Any suggestions for troubleshooting? Thanks.

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Franklin97355
 
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Re: 128x32 OLED I2C display only shows "snow"

Post by Franklin97355 »

Could you post clear pictures of both sides of your board showing any soldering you have done and the connections to it? Thanks.

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ted0h
 
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Re: 128x32 OLED I2C display only shows "snow"

Post by ted0h »

image3.jpeg
image3.jpeg (622.16 KiB) Viewed 542 times
image1.jpeg
image1.jpeg (402.89 KiB) Viewed 542 times
image2.jpeg
image2.jpeg (511.01 KiB) Viewed 542 times
Okay, here are the photos. Let me know if you need more info or better closeups. Thanks for your help.

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Franklin97355
 
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Re: 128x32 OLED I2C display only shows "snow"

Post by Franklin97355 »

I don't see any problems with the soldering and you say you are running the sample code so please email [email protected] with a link to this thread for a replacement

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pfarkas
 
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Re: 128x32 OLED I2C display only shows "snow"

Post by pfarkas »

Did this issue get resolved?
I'm seeing the same snow on my 128x64 OLED display on a Ruggeduino board where I'm trying to use A4 / A5. However, on my Arduino UNO board using the SDA / SCL pins it works fine.
What do I need to tweak?

Thanks in advance!
Pete

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