20x4 COB OLED Character Display
● 5.0V single power supply (Typ.)
● 5x7 dots with cursor
● Built-in controller: Compatible with HD44780/ST7066U
● Color:White/Yellow
● Support MCU interfaces:
4/8-bit 6800 series parallel interface(STD)
I2C interface (Option)
● Operating temperatures: -40°C to 80°C
● 4 sets of CGROM (hardware selectable)
ENGLISH/JAPANESE
ENGLISH/CYRILLIC
ENGLISH/EUROPEAN I
ENGLISH/EUROPEAN II
BL2004AM
BL2004AM is a 20x04 OLED (organic light-emitting diode) module made using COG (Chip on Glass) with SMT technology.
Character COG OLED display 16x2 has built-in IC and compatible with ST7066U, and 4 sets of CGROM (hardware selectable) fonts; English/Japanese, English/ Cyrillic, English/ European I and II.
It come with standard 4/8-bit 6800 series parallel interface and provides option of I2C interface. It can directly replace you 16x02 character LCM.
The module dimension 98.0 x 60.0 mm and active area is 70.42 x 20.82 mm.
It is available yellow and white options and wide Operating temperatures: -40°C to 80°C.
5.0V single power supply (Typ.)
● Mechanical Data
Item
Standard Value
Unit
Module Dimension
98.0 x 60.0
mm
Active Area
70.42 x 20.82
mm
Dot Size
0.55 x 0.55
mm
Dot Pitch
2.97 x 4.75
mm
● Pin Assignment
Pin
Symbol
Level
Function
1
GND
0V
Ground
2
VDD
5.0V
Supply voltage for logic.
3
NC
-
-
4
RS
H/L
H:DATA, L:Instruction code
5
R/W
H/L
H:Read(MPU←Module)
6
E
H→L
Chip enable signal
7~14
DB0~7
H/L
Data bit 0~7
15
NC
-
-
16
NC
-
-
L:Write(MPU→Module)
