0.95inch RGB OLED User Manual
2
Rev 2.4.2, October 22
nd
2015
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
Positive power supply (3.3~5V input voltage)
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.
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
