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Adding code for the external shutter button
Adding code to adapt the memento camera library fancy example to use an external shutter button
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  • MEMENTO/PyCamera_External_Shutter_Button

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‎MEMENTO/PyCamera_External_Shutter_Button/code.py‎

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# SPDX-FileCopyrightText: 2023 Jeff Epler for Adafruit Industries
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#
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# SPDX-License-Identifier: Unlicense
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import time
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import board
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import bitmaptools
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import displayio
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import gifio
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import ulab.numpy as np
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from adafruit_debouncer import Button
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import adafruit_pycamera
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from digitalio import DigitalInOut, Direction, Pull
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pycam = adafruit_pycamera.PyCamera()
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# pycam.live_preview_mode()
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settings = (None, "resolution", "effect", "mode", "led_level", "led_color")
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curr_setting = 0
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pin = DigitalInOut(board.A0)
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pin.direction = Direction.INPUT
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pin.pull = Pull.UP
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ext_button = Button(pin, long_duration_ms=1000)
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print("Starting!")
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# pycam.tone(200, 0.1)
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last_frame = displayio.Bitmap(pycam.camera.width, pycam.camera.height, 65535)
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onionskin = displayio.Bitmap(pycam.camera.width, pycam.camera.height, 65535)
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while True:
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if pycam.mode_text == "STOP" and pycam.stop_motion_frame != 0:
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# alpha blend
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new_frame = pycam.continuous_capture()
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bitmaptools.alphablend(
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onionskin, last_frame, new_frame, displayio.Colorspace.RGB565_SWAPPED
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)
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pycam.blit(onionskin)
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elif pycam.mode_text == "GBOY":
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bitmaptools.dither(
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last_frame, pycam.continuous_capture(), displayio.Colorspace.RGB565_SWAPPED
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)
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pycam.blit(last_frame)
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else:
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pycam.blit(pycam.continuous_capture())
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# print("\t\t", capture_time, blit_time)
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pycam.keys_debounce()
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ext_button.update()
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# test shutter button
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if pycam.shutter.long_press or ext_button.long_press:
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print("FOCUS")
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print(pycam.autofocus_status)
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pycam.autofocus()
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print(pycam.autofocus_status)
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if pycam.shutter.short_count or ext_button.short_count:
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print("Shutter released")
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if pycam.mode_text == "STOP":
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pycam.capture_into_bitmap(last_frame)
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pycam.stop_motion_frame += 1
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try:
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pycam.display_message("Snap!", color=0x0000FF)
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pycam.capture_jpeg()
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except TypeError as e:
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pycam.display_message("Failed", color=0xFF0000)
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time.sleep(0.5)
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except RuntimeError as e:
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pycam.display_message("Error\nNo SD Card", color=0xFF0000)
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time.sleep(0.5)
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pycam.live_preview_mode()
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if pycam.mode_text == "GBOY":
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try:
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f = pycam.open_next_image("gif")
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except RuntimeError as e:
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pycam.display_message("Error\nNo SD Card", color=0xFF0000)
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time.sleep(0.5)
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continue
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with gifio.GifWriter(
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f,
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pycam.camera.width,
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pycam.camera.height,
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displayio.Colorspace.RGB565_SWAPPED,
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dither=True,
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) as g:
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g.add_frame(last_frame, 1)
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if pycam.mode_text == "GIF":
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try:
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f = pycam.open_next_image("gif")
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except RuntimeError as e:
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pycam.display_message("Error\nNo SD Card", color=0xFF0000)
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time.sleep(0.5)
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continue
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i = 0
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ft = []
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pycam._mode_label.text = "RECORDING" # pylint: disable=protected-access
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pycam.display.refresh()
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with gifio.GifWriter(
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f,
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pycam.camera.width,
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pycam.camera.height,
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displayio.Colorspace.RGB565_SWAPPED,
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dither=True,
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) as g:
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t00 = t0 = time.monotonic()
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while (i < 15) or not pycam.shutter_button.value:
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i += 1
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_gifframe = pycam.continuous_capture()
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g.add_frame(_gifframe, 0.12)
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pycam.blit(_gifframe)
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t1 = time.monotonic()
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ft.append(1 / (t1 - t0))
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print(end=".")
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t0 = t1
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pycam._mode_label.text = "GIF" # pylint: disable=protected-access
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print(f"\nfinal size {f.tell()} for {i} frames")
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print(f"average framerate {i/(t1-t00)}fps")
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print(f"best {max(ft)} worst {min(ft)} std. deviation {np.std(ft)}")
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f.close()
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pycam.display.refresh()
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if pycam.mode_text == "JPEG":
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pycam.tone(200, 0.1)
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try:
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pycam.display_message("Snap!", color=0x0000FF)
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pycam.capture_jpeg()
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pycam.live_preview_mode()
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except TypeError as e:
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pycam.display_message("Failed", color=0xFF0000)
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time.sleep(0.5)
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pycam.live_preview_mode()
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except RuntimeError as e:
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pycam.display_message("Error\nNo SD Card", color=0xFF0000)
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time.sleep(0.5)
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if pycam.card_detect.fell:
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print("SD card removed")
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pycam.unmount_sd_card()
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pycam.display.refresh()
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if pycam.card_detect.rose:
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print("SD card inserted")
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pycam.display_message("Mounting\nSD Card", color=0xFFFFFF)
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for _ in range(3):
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try:
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print("Mounting card")
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pycam.mount_sd_card()
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print("Success!")
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break
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except OSError as e:
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print("Retrying!", e)
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time.sleep(0.5)
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else:
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pycam.display_message("SD Card\nFailed!", color=0xFF0000)
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time.sleep(0.5)
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pycam.display.refresh()
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if pycam.up.fell:
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print("UP")
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key = settings[curr_setting]
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if key:
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setattr(pycam, key, getattr(pycam, key) + 1)
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if pycam.down.fell:
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print("DN")
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key = settings[curr_setting]
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if key:
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setattr(pycam, key, getattr(pycam, key) - 1)
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if pycam.left.fell:
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print("LF")
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curr_setting = (curr_setting + 1) % len(settings)
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print(settings[curr_setting])
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# new_res = min(len(pycam.resolutions)-1, pycam.get_resolution()+1)
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# pycam.set_resolution(pycam.resolutions[new_res])
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pycam.select_setting(settings[curr_setting])
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if pycam.right.fell:
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print("RT")
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curr_setting = (curr_setting - 1 + len(settings)) % len(settings)
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print(settings[curr_setting])
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pycam.select_setting(settings[curr_setting])
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# new_res = max(1, pycam.get_resolution()-1)
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# pycam.set_resolution(pycam.resolutions[new_res])
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if pycam.select.fell:
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print("SEL")
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if pycam.ok.fell:
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print("OK")

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