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I'm attempting to hook up an arduino uno with a Sparkfun Oled. I downloaded the example program and made these changes:

#define PIN_RESET 3  // Connect RST to pin 3
#define PIN_DC    4  // Connect DC to pin 4
#define PIN_CS    10 // Connect CS to pin 10
#define DC_JUMPER 0

I connected everything according to Sparfun's walkthrough. I also wired accordingly. However, I cannot seem to get the Oled to do, well, much of anything. I have tried switching the MOSI and MISO to see if that makes a difference, but it doesn't seem to have any effect.

I'm using: pin 13 - clock (in the picture I was trying pin 8 for the clock but I have tried both)

pin 12 - MISO

pin 11 - MOSI

pin 10 - CS

pin 4 - DC

pin 3 - RESET

Can anyone tell me what's going wrong? I've tried to figure it out for a good long while now and I can't make the display do anything productive.

Thanks

enter image description here

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4
  • Have you inspected the pins you soldered on for cold joints? Commented Jan 6, 2015 at 6:56
  • 1
    It looks almost like the wires are simply pushed through the holes of the OLED breakout board (i.e. not soldered at all). If that's the case then there's a good chance they aren't forming a reliable connection. Commented Jan 6, 2015 at 9:50
  • If I only want to test the oled without committing it to an actual application, is there any way I could do that without soldering? Commented Jan 6, 2015 at 18:14
  • (Old thread, but still.) This picture doesn't provide any useful information. Either draw a schematic or use something like Fritzing to create something legible! Commented Apr 20, 2015 at 19:47

1 Answer 1

Reset to default
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Have you connected the GND pin from the UNO to the breadboard? I can't hardly tell. But it looks like you are also using 5V to power it?

How are you powering the UNO? Is it just 3.3V? I'm powering mine with a 5V but have level converters connected.

Mine:

UNO with OLED

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