0.95inch RGB OLED User Manual
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0.95inch RGB OLED
User Manual
1.
Key Parameters
Driver Chip
Interface
Resolution
Display Size
Dimension
Colors
Visible Angle
Operating Temp. (℃)
Storage Temp. (℃)
SSD1331
SPI
96x64
0.95inch
31.7mm*37mm
RGB, 65K colorful
>160°
-20~70
-30~80
2.
Operation Description
We will illustrate the usage of the module with an example by connecting Waveshare Open103R
development board (STM32F103R MCU on board).
2.1. Hardware connections
Connect module to the SPI2 interface of Open103R development board, power up. OLED displays
information shows as below.
Figure 1: OLED information display
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Rev 2.4.2, October 22 2015
nd
0.95inch RGB OLED User Manual
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2.2. Software configuration
Open the project file .\IDE\ OLED.uvproj in Keil. After compiling successfully, download the project to
Open103R development board.
3.
Pin descriptions
Table 1: Pin descriptions
Pin No.
1
2
3
4
5
6
7
Symbol
VCC
GND
NC
DIN
CLK
CS
D/C
Descriptions
Positive power supply (3.3~5V input voltage)
Ground
NC
Data
Clock
Chip
This is Data/Command control pin. When it is pulled HIGH (i.e. connect to VDD),
the data at D[7:0] is treated as data. When it is pulled LOW, the data at D[7:0] will
be transferred to the command register.
8
RES
Reset signal input pin (active LOW)
SSD1331 RGB OLED SPI interface.
The serial interface consists of serial clock CLK, serial data DIN, DC and CS. DIN is shifted into an 8-bit
shift register on every rising edge of CLK in the order of Bit7, Bit6… Bit0. DC is sampled on every
eighth clock and the data byte in the shift register is written to the Display Data RAM or command
register in the same clock.
Under serial mode, only write operations are allowed.
Table 2: Control pins of Serial interface
Function
Write command
Write data
CS
L
L
DC
L
H
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Rev 2.4.2, October 22 2015
nd
0.95inch RGB OLED User Manual
Figure 2: Write procedure in SPI mode
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Please refer to SSD1331-Revision 1.2.pdf for more detail about SSD1331.
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Rev 2.4.2, October 22 2015
nd
DSP 与 ARM 处理器
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