You've already forked MicroPythonOS
mirror of
https://github.com/m5stack/MicroPythonOS.git
synced 2026-05-20 11:51:27 -07:00
Thomas Farstrike
168f1ec374
Also: - API: change "display" to mpos.ui.main_display - API: change mpos.ui.th to mpos.ui.task_handler
108 lines
3.3 KiB
Python
108 lines
3.3 KiB
Python
# Hardware initialization for ESP32-S3-Touch-LCD-2
|
|
# Manufacturer's website at https://www.waveshare.com/wiki/ESP32-S3-Touch-LCD-2
|
|
from machine import Pin, SPI
|
|
import st7789
|
|
import lcd_bus
|
|
import machine
|
|
import cst816s
|
|
import i2c
|
|
|
|
import lvgl as lv
|
|
import task_handler
|
|
|
|
import mpos.ui
|
|
import mpos.info
|
|
|
|
mpos.info.set_hardware_id("waveshare-esp32-s3-touch-lcd-2")
|
|
|
|
# Pin configuration
|
|
SPI_BUS = 2
|
|
SPI_FREQ = 40000000
|
|
LCD_SCLK = 39
|
|
LCD_MOSI = 38
|
|
LCD_MISO = 40
|
|
LCD_DC = 42
|
|
LCD_CS = 45
|
|
LCD_BL = 1
|
|
|
|
I2C_BUS = 0
|
|
I2C_FREQ = 400000
|
|
TP_SDA = 48
|
|
TP_SCL = 47
|
|
TP_ADDR = 0x15
|
|
TP_REGBITS = 8
|
|
|
|
TFT_HOR_RES=320
|
|
TFT_VER_RES=240
|
|
|
|
spi_bus = machine.SPI.Bus(
|
|
host=SPI_BUS,
|
|
mosi=LCD_MOSI,
|
|
miso=LCD_MISO,
|
|
sck=LCD_SCLK
|
|
)
|
|
display_bus = lcd_bus.SPIBus(
|
|
spi_bus=spi_bus,
|
|
freq=SPI_FREQ,
|
|
dc=LCD_DC,
|
|
cs=LCD_CS,
|
|
)
|
|
|
|
# lv.color_format_get_size(lv.COLOR_FORMAT.RGB565) = 2 bytes per pixel * 320 * 240 px = 153600 bytes
|
|
# The default was /10 so 15360 bytes.
|
|
# /2 = 76800 shows something on display and then hangs the board
|
|
# /2 = 38400 works and pretty high framerate but camera gets ESP_FAIL
|
|
# /2 = 19200 works, including camera at 9FPS
|
|
# 28800 is between the two and still works with camera!
|
|
# 30720 is /5 and is already too much
|
|
_BUFFER_SIZE = const(28800)
|
|
fb1 = display_bus.allocate_framebuffer(_BUFFER_SIZE, lcd_bus.MEMORY_INTERNAL | lcd_bus.MEMORY_DMA)
|
|
fb2 = display_bus.allocate_framebuffer(_BUFFER_SIZE, lcd_bus.MEMORY_INTERNAL | lcd_bus.MEMORY_DMA)
|
|
|
|
mpos.ui.main_display = st7789.ST7789(
|
|
data_bus=display_bus,
|
|
frame_buffer1=fb1,
|
|
frame_buffer2=fb2,
|
|
display_width=TFT_VER_RES,
|
|
display_height=TFT_HOR_RES,
|
|
backlight_pin=LCD_BL,
|
|
backlight_on_state=st7789.STATE_PWM,
|
|
color_space=lv.COLOR_FORMAT.RGB565,
|
|
color_byte_order=st7789.BYTE_ORDER_BGR,
|
|
rgb565_byte_swap=True,
|
|
)
|
|
mpos.ui.main_display.init()
|
|
mpos.ui.main_display.set_power(True)
|
|
mpos.ui.main_display.set_backlight(100)
|
|
|
|
# Touch handling:
|
|
i2c_bus = i2c.I2C.Bus(host=I2C_BUS, scl=TP_SCL, sda=TP_SDA, freq=I2C_FREQ, use_locks=False)
|
|
touch_dev = i2c.I2C.Device(bus=i2c_bus, dev_id=TP_ADDR, reg_bits=TP_REGBITS)
|
|
indev=cst816s.CST816S(touch_dev,startup_rotation=lv.DISPLAY_ROTATION._180) # button in top left, good
|
|
|
|
lv.init()
|
|
mpos.ui.main_display.set_rotation(lv.DISPLAY_ROTATION._90) # must be done after initializing display and creating the touch drivers, to ensure proper handling
|
|
|
|
# Battery voltage ADC measuring
|
|
import mpos.battery_voltage
|
|
mpos.battery_voltage.init_adc(5, 262 / 100000)
|
|
|
|
# On the Waveshare ESP32-S3-Touch-LCD-2, the camera is hard-wired to power on,
|
|
# so it needs a software power off to prevent it from staying hot all the time and quickly draining the battery.
|
|
try:
|
|
from machine import Pin, I2C
|
|
i2c = I2C(1, scl=Pin(16), sda=Pin(21)) # Adjust pins and frequency
|
|
devices = i2c.scan()
|
|
print("Scan of I2C bus on scl=16, sda=21:")
|
|
print([hex(addr) for addr in devices]) # finds it on 60 = 0x3C after init
|
|
camera_addr = 0x3C # for OV5640
|
|
reg_addr = 0x3008
|
|
reg_high = (reg_addr >> 8) & 0xFF # 0x30
|
|
reg_low = reg_addr & 0xFF # 0x08
|
|
power_off_command = 0x42 # Power off command
|
|
i2c.writeto(camera_addr, bytes([reg_high, reg_low, power_off_command]))
|
|
except Exception as e:
|
|
print(f"Warning: powering off camera got exception: {e}")
|
|
|
|
print("boot.py finished")
|