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OLED HDK - Revision history
2026-07-22T14:33:12Z
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Chao: /* Interface - IIC */
2021-06-03T05:37:21Z
<p><span dir="auto"><span class="autocomment">Interface - IIC</span></span></p>
<p><b>New page</b></p><div><br />
== SSD1306 and SSH1106 ==<br />
* IIC address select, 稳压管 = on board regulator<br />
[[File:IIC address.jpg|thumbnail]]<br />
* IC compare<br />
{| class="wikitable sortable"<br />
|-<br />
! Type !! SSH1106 !! SSD1306<br />
|- <br />
| Display || for 1.3'' only || for 0.96'' and 1.3'' both<br />
|-<br />
| RAM / resolution || 132 x 64 || 128 x 64<br />
|-<br />
| address || 0x00 || 0x02<br />
|-<br />
| Alternative address for arduino || || 0x3D or 0x3C, or run a [[IIC]] scanner in arduino<br />
|}<br />
<br />
<br />
== Interface - IIC ==<br />
* GND VCC SCL SDA<br />
* And here is the front side of display<br />
<br />
== Interface - SPI ==<br />
* GND - GND<br />
* VCC - 3.3V - 5V<br />
* CLK or D0 - SPI_CLK<br />
* MOSI or D1 - SPI_MOSI<br />
* RES - Reset (normal MCU IO)<br />
* DC - Data / Command (normal MCU IO)<br />
* CS - SPI_CS<br />
<br />
== Interface ==<br />
{| class="wikitable sortable"<br />
|-<br />
! Pin From Left !! IIC !! SPI !! Change from SPI to IIC !! Arduino Setup <br />
|-<br />
| 1 || GND || GND || || GND<br />
|-<br />
| 2 || VCC || VCC || || VCC<br />
|-<br />
| 3 || SCL || D0 - CLK or SCL || || D13 <br />
|-<br />
| 4 || SDA || D1 - MOSI or SDA || || D11 <br />
|-<br />
| 5 || X || reset || || D8<br />
|-<br />
| 6 || X || data/command select || for setting IIC address || D9<br />
|-<br />
| 7 || X || chip select || || D10<br />
|}<br />
<br />
* SPI interface, can be changed to IIC<br />
* To use SPI un-comment U8G2 library line in skech example<br />
U8X8_SH1106_128X64_NONAME_4W_HW_SPI u8x8(/* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);<br />
* To use IIC, un-commen the next line<br />
U8X8_SH1106_128X64_NONAME_HW_I2C u8x8(/* reset=*/ U8X8_PIN_NONE);<br />
<br />
== Dimension ==<br />
Dimension for OLED with back PCB<br />
<gallery><br />
File:0.96 oled size.jpg| 0.96'' SPI OLED dimension<br />
File: IIC_OLED_dimension.jpg| 0.96'' IIC OLED dimension<br />
File: IIC_OLED_dimension 02.jpg| 0.96'' IIC OLED 02 dimension<br />
File:1.3'' OLED dimension.jpg| 1.3''_OLED_dimension<br />
File:1.3‘’_OLED_display_iic.jpg | 1.3'' OLED dimension IIC new, for SPI and IIC both<br />
</gallery><br />
Dimension for raw OLED, see more information in raw oled datatsheet below<br />
<gallery><br />
File:091_dimension.png | 0.86 raw oled dimension<br />
File:0.91-2_dimension.png| 0.91 raw oled dimension<br />
</gallery><br />
<br />
== Board schematic ==<br />
RAW OLED schematic<br />
<gallery><br />
File:Oled_096_iic.png | Left side for 5V system compliant, middle is reset (without IOs), address select, OLED and passive parts on right<br />
</gallery><br />
Schematic wiring for Raspberry<br />
<gallery><br />
File:1.3_oled_rpi.png | For raspberry Pi<br />
</gallery><br />
<gallery><br />
File:SH1106_IIC.jpeg| SH1106 IIC<br />
File:SS1106_SPI.jpeg| SH1106 SPI<br />
File:SSD1306_IIC_description.jpeg|| SSD1306 IIC<br />
File:SSD1306_SPI.jpeg| SSD1306 SPI<br />
File:Oled_ssd1306_SPI_IIC_01.jpeg | SSD1306 SPI R2, supported to change to IIC<br />
File:091_sch.png | 0.91 SSD1306 schematic<br />
</gallery><br />
<br />
== Common Version ==<br />
* 0.96" = 128x64<br />
* 1.3" = 128x64<br />
* 0.91" = 128x32<br />
<br />
[[category: OLED]]</div>
Chao