aeroreyna
116 lines
3.1 KiB
Python
116 lines
3.1 KiB
Python
"""CircuitPython entrypoint for Waveshare ESP32-S3-RLCD-4.2 migration.
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Copy this file to CIRCUITPY/code.py after flashing CircuitPython.
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"""
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import gc
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import os
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import time
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import board
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import busio
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import digitalio
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from audio_cp import BoardAudio
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from gif_player import GIFPlayer
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from rlcd_cp import RLCD
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# Keep pin choices in one place because CircuitPython board builds differ in
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# how they expose ESP32-S3 pins. If board.IO## is missing, run `dir(board)` on
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# the serial console and update these names.
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PINS = {
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"display_sck": board.IO11,
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"display_mosi": board.IO12,
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"display_cs": board.IO40,
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"display_dc": board.IO5,
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"display_rst": board.IO41,
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"i2c_sda": board.IO13,
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"i2c_scl": board.IO14,
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"i2s_bclk": board.IO9,
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"i2s_lrck": board.IO45,
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"i2s_dout": board.IO8,
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"audio_mclk": board.IO16,
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"audio_amp": board.IO46,
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}
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def exists(path):
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try:
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os.stat(path)
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return True
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except OSError:
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return False
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def init_display():
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spi = busio.SPI(clock=PINS["display_sck"], MOSI=PINS["display_mosi"])
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# Match the working MicroPython code's 20 MHz SPI if the build supports it.
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while not spi.try_lock():
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pass
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try:
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spi.configure(baudrate=20000000, phase=0, polarity=0)
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finally:
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spi.unlock()
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display = RLCD(
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spi,
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cs=digitalio.DigitalInOut(PINS["display_cs"]),
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dc=digitalio.DigitalInOut(PINS["display_dc"]),
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rst=digitalio.DigitalInOut(PINS["display_rst"]),
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)
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return display
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def init_audio():
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i2c = busio.I2C(scl=PINS["i2c_scl"], sda=PINS["i2c_sda"])
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return BoardAudio(
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i2c,
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bit_clock=PINS["i2s_bclk"],
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word_select=PINS["i2s_lrck"],
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data=PINS["i2s_dout"],
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mclk=PINS["audio_mclk"],
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amp=PINS["audio_amp"],
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)
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def draw_boot_screen(display, message="CircuitPython RLCD"):
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display.clear(0)
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display.text("ESP32-S3-RLCD", 10, 10, 1)
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display.line(10, 22, 390, 22, 1)
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display.text_large("CIRCUITPY", 18, 45, scale=3, color=1)
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display.text(message, 18, 86, 1)
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display.text("MP3: /demo.mp3", 18, 116, 1)
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display.text("GIF: /demo.gif", 18, 132, 1)
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display.text("If visible, ST7305 init works", 18, 170, 1)
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display.show()
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def main():
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display = init_display()
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draw_boot_screen(display, "Display initialized")
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time.sleep(1)
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# Try GIF first because it verifies display animation support.
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if exists("/demo.gif"):
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draw_boot_screen(display, "Playing GIF...")
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GIFPlayer(display).play("/demo.gif", loops=1)
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draw_boot_screen(display, "GIF done")
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gc.collect()
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# Try MP3 if present. If this fails silently, verify MCLK on IO16 and codec
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# register sequence against a known-good WAV/tone first.
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if exists("/demo.mp3"):
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draw_boot_screen(display, "Playing MP3...")
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try:
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audio = init_audio()
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ok = audio.play_mp3("/demo.mp3", volume=65)
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draw_boot_screen(display, "MP3 ok" if ok else "MP3 failed")
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except Exception as exc:
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draw_boot_screen(display, "MP3 error: " + str(exc)[:28])
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while True:
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time.sleep(5)
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main()
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