ST7735 Display¶
ST7735 Display Driver.
Usage¶
The ST7735 component allows you to use a ST7735 display (datasheet and information, Adafruit) in ESPHome. It uses the SPI Bus for communication.
Warning
This component has been made redundant since the ST7735 is now supported by the ILI9XXX component. It is recommended
that you use the ili9xxx
component as it will be maintained, whereas this component may not be, or may be removed completely
in the future. If migrating from this component to ili9xxx
you may need to set the dimensions:
option to
specify the screen size and offsets in the ili9xxx
config.
There are numerous board types out there. Some initialize differently as well. This driver will take a few options to narrow down the right settings.
# Example configuration entry
display:
- platform: st7735
model: "INITR_18BLACKTAB"
reset_pin: D4
cs_pin: D1
dc_pin: D2
rotation: 0
device_width: 128
device_height: 160
col_start: 0
row_start: 0
eight_bit_color: true
update_interval: 5s
Configuration variables:¶
model (Required, string): The model to use, one of the following options:
INITR_BLACKTAB
INITR_GREENTAB
INITR_REDTAB
INITR_MINI160X80
INITR_18BLACKTAB
INITR_18REDTAB
cs_pin (Required, Pin Schema): The CS pin.
dc_pin (Required, Pin Schema): The DC pin.
device_width (Required, int): The device width. 128 is default
device_height (Required, int): The device height. 160 is default
col_start (Required, int): The starting column offset. Default value depends on model.
row_start (Required, int): The starting row offset. Default value depends on model.
use_bgr (Optional, boolean): Use BGR mode. Default is false.
invert_colors (Optional, boolean): Invert LCD colors. Default is false.
eight_bit_color (Optional, boolean): 8bit mode. Default is false. This saves 50% of the buffer required for the display.
reset_pin (Optional, Pin Schema): The RESET pin.
update_interval (Optional, Time): Time between display updates. Default is 1s.
Memory notes:¶
8Bit color saves 50% of the buffer required.
eight_bit_color: true
160x128 = 20480 Important for memory constrained deviceseight_bit_color: false
160x128x2 = 40960
Models:¶
INITR_GREENTAB
INITR_REDTAB
INITR_BLACKTAB
INITR_MINI160X80
INITR_18BLACKTAB
INITR_18REDTAB