Simple test

Ensure your device works with this simple test.

examples/vc0706_snapshot_filesystem.py
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
# SPDX-License-Identifier: MIT

"""VC0706 image capture to local storage.
You must wire up the VC0706 to a USB or hardware serial port.
Primarily for use with Linux/Raspberry Pi but also can work with Mac/Windows"""

import time
import busio
import board
import adafruit_vc0706

# Set this to the full path to the file name to save the captured image. WILL OVERWRITE!
# CircuitPython internal filesystem configuration:
IMAGE_FILE = "/image.jpg"
# USB to serial adapter configuration:
# IMAGE_FILE = 'image.jpg'  # Full path to file name to save captured image. Will overwrite!
# Raspberry Pi configuration:
# IMAGE_FILE = '/home/pi/image.jpg'  # Full path to file name to save image. Will overwrite!


# Create a serial connection for the VC0706 connection.
uart = busio.UART(board.TX, board.RX, baudrate=115200, timeout=0.25)
# Update the serial port name to match the serial connection for the camera!
# For use with USB to serial adapter:
# import serial
# uart = serial.Serial("/dev/ttyUSB0", baudrate=115200, timeout=0.25)
# For use with Raspberry Pi:
# import serial
# uart = serial.Serial("/dev/ttyS0", baudrate=115200, timeout=0.25)

# Setup VC0706 camera
vc0706 = adafruit_vc0706.VC0706(uart)

# Print the version string from the camera.
print("VC0706 version:")
print(vc0706.version)

# Set the image size.
vc0706.image_size = adafruit_vc0706.IMAGE_SIZE_640x480
# Or set IMAGE_SIZE_320x240 or IMAGE_SIZE_160x120

# Note you can also read the property and compare against those values to
# see the current size:
size = vc0706.image_size
if size == adafruit_vc0706.IMAGE_SIZE_640x480:
    print("Using 640x480 size image.")
elif size == adafruit_vc0706.IMAGE_SIZE_320x240:
    print("Using 320x240 size image.")
elif size == adafruit_vc0706.IMAGE_SIZE_160x120:
    print("Using 160x120 size image.")

# Take a picture.
print("Taking a picture in 3 seconds...")
time.sleep(3)
print("SNAP!")
if not vc0706.take_picture():
    raise RuntimeError("Failed to take picture!")

# Print size of picture in bytes.
frame_length = vc0706.frame_length
print("Picture size (bytes): {}".format(frame_length))

# Open a file for writing (overwriting it if necessary).
# This will write 50 bytes at a time using a small buffer.
# You MUST keep the buffer size under 100!
print("Writing image: {}".format(IMAGE_FILE), end="", flush=True)
stamp = time.monotonic()
# Pylint doesn't like the wcount variable being lowercase, but uppercase makes less sense
# pylint: disable=invalid-name
with open(IMAGE_FILE, "wb") as outfile:
    wcount = 0
    while frame_length > 0:
        t = time.monotonic()
        # Compute how much data is left to read as the lesser of remaining bytes
        # or the copy buffer size (32 bytes at a time).  Buffer size MUST be
        # a multiple of 4 and under 100.  Stick with 32!
        to_read = min(frame_length, 32)
        copy_buffer = bytearray(to_read)
        # Read picture data into the copy buffer.
        if vc0706.read_picture_into(copy_buffer) == 0:
            raise RuntimeError("Failed to read picture frame data!")
        # Write the data to SD card file and decrement remaining bytes.
        outfile.write(copy_buffer)
        frame_length -= 32
        # Print a dot every 2k bytes to show progress.
        wcount += 1
        if wcount >= 64:
            print(".", end="", flush=True)
            wcount = 0
print()
# pylint: enable=invalid-name
print("Finished in %0.1f seconds!" % (time.monotonic() - stamp))
# Turn the camera back into video mode.
vc0706.resume_video()
examples/vc0706_snapshot_simpletest.py
  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
# SPDX-License-Identifier: MIT

"""VC0706 image capture to SD card demo.
You must wire up the VC0706 to the board's serial port, and a SD card holder
to the board's SPI bus.  Use the Feather M0 Adalogger as it includes a SD
card holder pre-wired to the board--this sketch is setup to use the Adalogger!
In addition you MUST also install the following dependent SD card library:
https://github.com/adafruit/Adafruit_CircuitPython_SD
See the guide here for more details on using SD cards with CircuitPython:
https://learn.adafruit.com/micropython-hardware-sd-cards"""

import time

import board
import busio
import digitalio
import storage

import adafruit_sdcard
import adafruit_vc0706


# Configuration:
SD_CS_PIN = board.D10  # CS for SD card (SD_CS is for Feather Adalogger)
IMAGE_FILE = "/sd/image.jpg"  # Full path to file name to save captured image.
# Will overwrite!

# Setup SPI bus (hardware SPI).
spi = busio.SPI(board.SCK, MOSI=board.MOSI, MISO=board.MISO)

# Setup SD card and mount it in the filesystem.
sd_cs = digitalio.DigitalInOut(SD_CS_PIN)
sdcard = adafruit_sdcard.SDCard(spi, sd_cs)
vfs = storage.VfsFat(sdcard)
storage.mount(vfs, "/sd")

# Create a serial connection for the VC0706 connection, speed is auto-detected.
uart = busio.UART(board.TX, board.RX)
# Setup VC0706 camera
vc0706 = adafruit_vc0706.VC0706(uart)

# Print the version string from the camera.
print("VC0706 version:")
print(vc0706.version)

# Set the baud rate to 115200 for fastest transfer (its the max speed)
vc0706.baudrate = 115200

# Set the image size.
vc0706.image_size = adafruit_vc0706.IMAGE_SIZE_640x480  # Or set IMAGE_SIZE_320x240 or
# IMAGE_SIZE_160x120
# Note you can also read the property and compare against those values to
# see the current size:
size = vc0706.image_size
if size == adafruit_vc0706.IMAGE_SIZE_640x480:
    print("Using 640x480 size image.")
elif size == adafruit_vc0706.IMAGE_SIZE_320x240:
    print("Using 320x240 size image.")
elif size == adafruit_vc0706.IMAGE_SIZE_160x120:
    print("Using 160x120 size image.")

# Take a picture.
print("Taking a picture in 3 seconds...")
time.sleep(3)
print("SNAP!")
if not vc0706.take_picture():
    raise RuntimeError("Failed to take picture!")

# Print size of picture in bytes.
frame_length = vc0706.frame_length
print("Picture size (bytes): {}".format(frame_length))

# Open a file for writing (overwriting it if necessary).
# This will write 50 bytes at a time using a small buffer.
# You MUST keep the buffer size under 100!
print("Writing image: {}".format(IMAGE_FILE), end="")
stamp = time.monotonic()
# pylint: disable=invalid-name
with open(IMAGE_FILE, "wb") as outfile:
    wcount = 0
    while frame_length > 0:
        # Compute how much data is left to read as the lesser of remaining bytes
        # or the copy buffer size (32 bytes at a time).  Buffer size MUST be
        # a multiple of 4 and under 100.  Stick with 32!
        to_read = min(frame_length, 32)
        copy_buffer = bytearray(to_read)
        # Read picture data into the copy buffer.
        if vc0706.read_picture_into(copy_buffer) == 0:
            raise RuntimeError("Failed to read picture frame data!")
        # Write the data to SD card file and decrement remaining bytes.
        outfile.write(copy_buffer)
        frame_length -= 32
        # Print a dot every 2k bytes to show progress.
        wcount += 1
        if wcount >= 64:
            print(".", end="")
            wcount = 0
# pylint: enable=invalid-name
print()
print("Finished in %0.1f seconds!" % (time.monotonic() - stamp))
# Turn the camera back into video mode.
vc0706.resume_video()