Datasheet

1300 Henley Court

Pullman, WA 99163

509.334.6306

www.digilentinc.com

PmodOLED™ Reference Manual

Revised May 24, 2016

This manual applies to the PmodOLED rev. A

DOC#: 502-222

Other product and company names mentioned may be trademarks of their respective owners.

Page 1 of 3

Overview

The PmodOLED features an SPI-controlled monochrome OLED display, perfect for embedded applications requiring

small, complex visual output.

1 Functional Description

The PmodOLED uses a standard 12-pin connector to display output on a 128x32 pixel organic LED (OLED) panel.

The graphic display panel uses the Solomon Systech SSD1306 display controller.

An SPI interface is used to configure the display, as well as to send the bitmap data to the device.

The PmodOLED displays the last image drawn on the screen until it is powered down or a new image is drawn to

the display. Refreshing and updating is handled internally.

The PmodOLED.

 128×32 pixel graphic OLED display

 Clock speeds of up to 10 MHz

 Internal display buffer

 16 different brightness settings

 Small PCB size for flexible designs

 12-pin Pmod connector with SPI interface

 Library and example code available in resource

center

Features include:

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300 Henley Court Pullman, WA 99163 509.334.6306 www.digilentinc.com PmodOLED™ Reference Manual Revised May 24, 2016 This manual applies to the PmodOLED rev. A Overview The PmodOLED features an SPI-controlled monochrome OLED display, perfect for embedded applications requiring small, complex visual output.
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PmodOLED™ Reference Manual 1.1 Power Supply The PmodOLED has two field-effect transistors (FETs) that control the display’s two power supplies. The VDDC control toggles the power to the logic of the display. The VBATC control toggles the power to the OLED display itself. These two pins have pull-up resistors that turn off their respective power supplies when they’re not being driven. These pins are configured as outputs and driven low to turn on the power supply.
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PmodOLED™ Reference Manual Connector J1 Pin Signal Description 1 2 CS SDIN SPI Chip Select (Slave Select) SPI Data In (MOSI) 3 None Unused Pin 4 SCLK SPI Clock 7 D/C Data/Command Control 8 RES Power Reset 9 VBATC VBAT Battery Voltage Control 10 VDDC VDD Logic Voltage Control 5, 11 6, 12 GND VCC Power Supply Ground Power Supply Table 1. Interface connector signal description.