128x32 OLED Graphic Display
● Built-in controller SPD1307
● +3.3 V single power supply
● 1/32 duty cycle
● Color: white
● Interface: SPI, I2C
BL12832D
BL12832D is 0.91 inch 128x32 dots Graphic OLED Display Modules.
The module dimension of BL12832D is 40 x 11.5 mm and Active Area is 22.38 x 5.58 mm.
It has built-in IC SPD1307 and it supports SPI / I²C interface.
BL12832D required +3.3 V single power supply.
BL12832D is built using COG (Chip on glass) structure that makes it light weight.
BL12832DMIS ultra high brightness and sunlight readable OLED, and recommend for outdoor application such as OLED for wearable device, and OLED for portable devices.
As most industrial OLED displays, the BL-series module offers extremely wide operating temperature range of -40 to + 80°C.
● Mechanical Data
Item
Standard Value
Unit
Module Dimension
40.0 x 11.5
mm
Viewing Area
24.38 x 7.58
mm
Dot Size
0.155 x 0.155
mm
Dot Pitch
0.175 x 0.175
mm
● Pin Assignment
Pin
Symbol
Function
1
VCC
Power supplier for panel
driving voltage
2
VLSS
Ground pin. It should be
connected to VSS externally.
3
VDD
Power supply for logic circuit
4
CS#
Chip select input
5
RES#
Reset signal input
6
D/C#
This is data/command control pin.
In I²C mode, this pin
acts as SA0 for slave address selection.
7
D0
SPI: Serial clock input (SCLK). I²C : NC
8
D1
SPI: Serial data input (SDIN). I²C : Data input/output (SDA)
9
D2
SPI: NC I²C : Clock input (SCL)
10
IREF
Reference current input pin. A resister should be connected between this
pin and VSS.
11
VCOMH
Com Voltage Output. A capacitor should be connected between this
pin and VSS.
12
VCC
Power supplier for panel
driving voltage.
13
BS1
MCU bus interface selection pin.
14
VSS
Ground pin.
