user4638: 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


user6883: 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:


4638: <p>I'm attempting to hook up an arduino uno with a Sparkfun Oled. I downloaded the example program and made these changes:</p>

<pre><code>#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
</code></pre>

<p>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.</p>

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

<p>pin 12 - MISO</p>

<p>pin 11 - MOSI</p>

<p>pin 10 - CS</p>

<p>pin 4 - DC</p>

<p>pin 3 - RESET</p>

<p>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.</p>

<p>Thanks</p>

<p><img src="https://i.stack.imgur.com/fPHgg.jpg" alt="enter image description here"></p>
 6883: <p>Have you connected the <code>GND</code> pin from the <code>UNO</code> to the breadboard?  I can't hardly tell.  But it looks like you are also using 5V to power it?</p>

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

<p>Mine:</p>

<p><img src="https://i.stack.imgur.com/K8Lth.jpg" alt="UNO with OLED"></p>
