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ST7789V.py
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ST7789V.py
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from machine import Pin,SPI,PWM
import framebuf
import time
from micropython import const
BL = 13
DC = 8
RST = 12
MOSI = 11
SCK = 10
#CS = 9
ST7789_MADCTL = const(0x36)
class LCD_1inch14(framebuf.FrameBuffer):
ROTATIONS = [0x00, 0x60, 0xc0, 0xa0]
WIDTH_135 = [(135, 240, 52, 40),
(240, 135, 40, 53),
(135, 240, 53, 40),
(240, 135, 40, 52)]
def __init__(self, lnum):
self.width = 135
self.height = 240
#self.cs = Pin(CS,Pin.OUT)
self.CSA1_PIN = 2 #74HC138 a1
self.CSA2_PIN = 3
self.CSA3_PIN = 4
self.csa1 = Pin(self.CSA1_PIN,Pin.OUT)
self.csa2 = Pin(self.CSA2_PIN,Pin.OUT)
self.csa3 = Pin(self.CSA3_PIN,Pin.OUT)
self.rst = Pin(RST,Pin.OUT)
self.lcd_cs_h()
# self.spi = SPI(1)
# self.spi = SPI(1,1000_000)
self.spi = SPI(1,10000_000,polarity=0, phase=0,sck=Pin(SCK),mosi=Pin(MOSI),miso=None)
self.dc = Pin(DC,Pin.OUT)
self.dc.value(1)
self.buffer = bytearray(self.height * self.width * 2)
super().__init__(self.buffer, self.width, self.height, framebuf.RGB565)
self.init_display(lnum)
self.red = 0x07E0
self.green = 0x001f
self.blue = 0xf800
self.white = 0xffff
def lcd_cs_l(self, lnum):
# if(self.mode == 1):
lnum = 5 - lnum
self.csa1.value(lnum&0x01)
self.csa2.value((lnum>>1)&0x01)
self.csa3.value((lnum>>2)&0x01)
def lcd_cs_h(self):
# if(self.mode == 1):
self.csa1.value(1)
self.csa2.value(1)
self.csa3.value(1)
def write_cmd(self, lnum, cmd):
self.lcd_cs_h()
self.dc.value(0)
self.lcd_cs_l(lnum)
self.spi.write(bytearray([cmd]))
self.lcd_cs_h()
def write_data(self, lnum, buf):
self.lcd_cs_h()
self.dc.value(1)
self.lcd_cs_l(lnum)
self.spi.write(bytearray([buf]))
self.lcd_cs_h()
def init_display(self, lnum):
"""Initialize dispaly"""
self.rst.value(1)
self.rst.value(0)
self.rst.value(1)
self.write_cmd(lnum, 0x36)
self.write_data(lnum, 0x70)
self.write_cmd(lnum, 0x3A)
self.write_data(lnum, 0x05)
self.write_cmd(lnum, 0xB2)
self.write_data(lnum, 0x0C)
self.write_data(lnum, 0x0C)
self.write_data(lnum, 0x00)
self.write_data(lnum, 0x33)
self.write_data(lnum, 0x33)
self.write_cmd(lnum, 0xB7)
self.write_data(lnum, 0x35)
self.write_cmd(lnum, 0xBB)
self.write_data(lnum, 0x19)
self.write_cmd(lnum, 0xC0)
self.write_data(lnum, 0x2C)
self.write_cmd(lnum, 0xC2)
self.write_data(lnum, 0x01)
self.write_cmd(lnum, 0xC3)
self.write_data(lnum, 0x12)
self.write_cmd(lnum, 0xC4)
self.write_data(lnum, 0x20)
self.write_cmd(lnum, 0xC6)
self.write_data(lnum, 0x0F)
self.write_cmd(lnum, 0xD0)
self.write_data(lnum, 0xA4)
self.write_data(lnum, 0xA1)
self.write_cmd(lnum, 0xE0)
self.write_data(lnum, 0xD0)
self.write_data(lnum, 0x04)
self.write_data(lnum, 0x0D)
self.write_data(lnum, 0x11)
self.write_data(lnum, 0x13)
self.write_data(lnum, 0x2B)
self.write_data(lnum, 0x3F)
self.write_data(lnum, 0x54)
self.write_data(lnum, 0x4C)
self.write_data(lnum, 0x18)
self.write_data(lnum, 0x0D)
self.write_data(lnum, 0x0B)
self.write_data(lnum, 0x1F)
self.write_data(lnum, 0x23)
self.write_cmd(lnum, 0xE1)
self.write_data(lnum, 0xD0)
self.write_data(lnum, 0x04)
self.write_data(lnum, 0x0C)
self.write_data(lnum, 0x11)
self.write_data(lnum, 0x13)
self.write_data(lnum, 0x2C)
self.write_data(lnum, 0x3F)
self.write_data(lnum, 0x44)
self.write_data(lnum, 0x51)
self.write_data(lnum, 0x2F)
self.write_data(lnum, 0x1F)
self.write_data(lnum, 0x1F)
self.write_data(lnum, 0x20)
self.write_data(lnum, 0x23)
self.write_cmd(lnum, 0x21)
self.write_cmd(lnum, 0x11)
self.write_cmd(lnum, 0x29)
def _set_columns(self, start, end):
"""
Send CASET (column address set) command to display.
Args:
start (int): column start address
end (int): column end address
"""
if start <= end <= self.width:
self._write(ST7789_CASET, _encode_pos(
start+self.xstart, end + self.xstart))
def _set_rows(self, start, end):
"""
Send RASET (row address set) command to display.
Args:
start (int): row start address
end (int): row end address
"""
if start <= end <= self.height:
self._write(ST7789_RASET, _encode_pos(
start+self.ystart, end+self.ystart))
def _set_window(self, x0, y0, x1, y1):
"""
Set window to column and row address.
Args:
x0 (int): column start address
y0 (int): row start address
x1 (int): column end address
y1 (int): row end address
"""
self._set_columns(x0, x1)
self._set_rows(y0, y1)
self._write(ST7789_RAMWR)
def show(self, lnum):
self.write_cmd(lnum, 0x2A)
self.write_data(lnum, 0x00)
self.write_data(lnum, 0x28)
self.write_data(lnum, 0x01)
self.write_data(lnum, 0x17)
self.write_cmd(lnum, 0x2B)
self.write_data(lnum, 0x00)
self.write_data(lnum, 0x35)
self.write_data(lnum, 0x00)
self.write_data(lnum, 0xBB)
self.write_cmd(lnum, 0x2C)
self.lcd_cs_h()
self.dc.value(1)
self.lcd_cs_l(lnum)
self.spi.write(self.buffer)
self.lcd_cs_h()
def rotation(self, lnum, rotation):
"""
Set display rotation.
Args:
rotation (int):
- 0-Portrait
- 1-Landscape
- 2-Inverted Portrait
- 3-Inverted Landscape
"""
rotation %= 4
self._rotation = rotation
madctl = self.ROTATIONS[rotation]
table = self.WIDTH_135
self.width, self.height, self.xstart, self.ystart = table[rotation]
self.write_cmd(lnum, ST7789_MADCTL)
self.write_data(lnum, madctl)
self.set_windows(0, 0, 0, self.width, self.height)