def test_http_download():
pos = 0
while True:
time.sleep(1)
pos += 1
filename = '/sd/test_' + str(pos) + '.zip'
fileurl = 'http://120.78.165.108/juwan/K-Flash.zip'
#filename = '/sd/face.kmodel'
#fileurl = 'http://120.78.165.108/juwan/face.kmodel'
#try:
#import os
#os.remove(filename)
#except Exception as e:
#pass
gc.collect()
bak = time.ticks()
try:
contentType = MicroWebCli.FileRequest(fileurl, filename, progressCallback)
print('File of content type "%s" was saved to "%s"' % (contentType, filename))
except Exception as e:
print(e)
print('total time', (time.ticks() - bak) / 1000, 's')
def btn_function(pin_num):
current_time = time.ticks()
global btn_time
# print(current_time - btn_time)
if (current_time - btn_time) >= 500:
print("버튼이 눌렸습니다.")
btn_time = time.ticks()
def test_http_get():
#wCli = MicroWebCli('http://api.nnzhp.cn/api/user/stu_info')
wCli = MicroWebCli('https://tcc.taobao.com/cc/json/mobile_tel_segment.htm?tel=13631786501')
while True:
time.sleep(1)
bak = time.ticks()
try:
print('GET %s' % wCli.URL)
wCli.OpenRequest()
buf = memoryview(bytearray(2048))
resp = wCli.GetResponse()
if resp.IsSuccess() :
while not resp.IsClosed() :
x = resp.ReadContentInto(buf)
if x < len(buf) :
buf = buf[:x]
print(bytes(buf))
print('GET success with "%s" content type' % resp.GetContentType())
else :
print('GET return %d code (%s)' % (resp.GetStatusCode(), resp.GetStatusMessage()))
except Exception as E:
print(E)
print('total time ', (time.ticks() - bak) / 1000, ' s')
def pi_test(n=5000):
t1 = time.ticks()
t = pi(n)
t2 = time.ticks()
r = (t2 * 1.0 - t1) / 1000
print(' Pi', n, 'digit calculation: ', r, 's')
return '%.2f' % r
def BlobTest(thresholds, loopCnt = 390, barLen = 120):
sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.CIF)
#sensor.set_windowing((320,240))
sensor.set_auto_gain(True)
#sensor.set_auto_whitebal(True) # must be turned off for color tracking
clock = time.clock()
avg = 0.0
startTick = time.ticks()
while(True):
if time.ticks() - startTick > loopCnt:
break
clock.tick()
img = sensor.snapshot()
img.draw_string(4, 8, 'red,green,blue blob detect', color=(0,0,0))
t0 = time.ticks()
blobSet = img.find_blobs(thresholds, pixels_threshold=200, area_threshold=200)
t1 = time.ticks() - t0
avg = avg * 0.95 + t1 * 0.05
lnLen = (barLen * (loopCnt - (time.ticks() - startTick))) // loopCnt
DrawPgsBar(img, barLen, loopCnt, startTick)
for blob in blobSet:
img.draw_rectangle(blob.rect())
img.draw_cross(blob.cx(), blob.cy())
print('algo time cost : %.2f ms' % (avg))
def CorrTest(loopCnt = 220, barLen=120):
sensor.reset()
# Sensor settings
sensor.set_contrast(1)
sensor.set_gainceiling(16)
sensor.set_framesize(sensor.QVGA)
sensor.set_pixformat(sensor.RGB565)
#sensor.set_windowing((480,272))
clock = time.clock()
avg = 0.0
startTick = time.ticks()
corr = 0.3
while (True):
if time.ticks() - startTick > loopCnt:
break
clock.tick()
img = sensor.snapshot()
for i in range(7):
img.draw_rectangle(160-i*15, 120-i*15, i*15*2, i*15*2)
corr += 0.05
if corr >= 4.0:
corr = 0.3
img.lens_corr(corr)
lnLen = (barLen * (loopCnt - (time.ticks() - startTick))) // loopCnt
DrawPgsBar(img, barLen, loopCnt, startTick)
img.draw_string(4,4,'Lens correction %.2f' % (corr), color=(0,0,0))
def float_div_test(n=1000000, a=12345.678, b=56.789):
t1 = time.ticks()
sum = 0
for i in range(n):
sum = a / b
t2 = time.ticks()
r = (t2 * 1.0 - t1) / 1000
print(' Float Div test', n, 'times: ', r, 's')
return '%.2f' % r
def int_div_test(n=1000000, a=123456, b=567):
t1 = time.ticks()
sum = 0
for i in range(n):
sum = a // b
t2 = time.ticks()
r = (t2 * 1.0 - t1) / 1000
print(' Integer Div test', n, 'times: ', r, 's')
return '%.2f' % r
def float_mul_test(n=1000000, a=1234.5678, b=5678.1234):
t1 = time.ticks()
sum = 0
for i in range(n):
sum = a * b
t2 = time.ticks()
r = (t2 * 1.0 - t1) / 1000
print(' Float Mul test', n, 'times: ', r, 's')
return '%.2f' % r
def int_mul_test(n=1000000, a=12345, b=56789):
t1 = time.ticks()
sum = 0
for i in range(n):
sum = a * b
t2 = time.ticks()
r = (t2 * 1.0 - t1) / 1000
print(' Integer Mul test', n, 'times: ', r, 's')
return '%.2f' % r
def _wait_spi_char(self, spi, desired):
"""Read a byte with a time-out, and if we get it, check that its what we expect"""
times = time.ticks()
while (time.ticks() - times) < 100:
r = self._read_byte(spi)
if r == _ERR_CMD:
raise RuntimeError("Error response to command")
if r == desired:
return True
raise RuntimeError("Timed out waiting for SPI char")
def CIFAR10Test(loopCnt=600, isFull=False, barLen=105):
pyb.LED(1).off()
sensor.reset() # Reset and initialize the sensor.
sensor.set_contrast(3)
sensor.set_pixformat(
sensor.RGB565) # Set pixel format to RGB565 (or GRAYSCALE)
sensor.set_framesize(sensor.VGA) # Set frame size to QVGA (320x240)
sensor.set_windowing((192, 192)) # Set window
sensor.skip_frames(time=300) # Wait for settings take effect.
sensor.set_auto_gain(False)
#sensor.set_framerate(0<<9|1<<12)
if isFull:
net = nn.load('/cifar10.network')
else:
net = nn.load('/cifar10_fast.network')
labels = [
'plane', 'auto', 'bird', 'cat', 'deer', 'dog', 'frog', 'horse', 'ship',
'truck'
]
clock = time.clock()
tAvg = 0.0
startTick = time.ticks()
while (True):
if time.ticks() - startTick > loopCnt:
break
clock.tick()
img = sensor.snapshot()
t0 = time.ticks()
lst = net.search(img, threshold=0.640, min_scale=1, scale_mul=0.8, \
x_overlap=-1, y_overlap=-1, contrast_threshold=0.5)
t1 = time.ticks() - t0
tAvg = tAvg * 0.9 + t1 * 0.1
img.draw_string(
4,
8,
'CIFAR-10: classify:\nplane,auto,cat,dog,\ndeer,horse,frog,ship,\ntruck,horse',
color=(0, 0, 0))
lnLen = (barLen * (loopCnt - (time.ticks() - startTick))) // loopCnt
DrawPgsBar(img, barLen, loopCnt, startTick)
for obj in lst:
print(' %s - Confidence %f%%' %
(labels[obj.index()], obj.value()))
rc = obj.rect()
#img.draw_rectangle(rc, color=(255,255,255))
img.draw_rectangle(barLen + 10,
1,
50,
8,
fill=True,
color=(0, 0, 0))
img.draw_string(barLen + 10, 0, labels[obj.index()])
print('algo time cost : %.2f ms' % (tAvg))
def socket_connect(self, socket_num, dest, port, conn_mode=TCP_MODE):
"""Open and verify we connected a socket to a destination IP address or hostname
using the ESP32's internal reference number. By default we use
'conn_mode' TCP_MODE but can also use UDP_MODE or TLS_MODE (dest must
be hostname for TLS_MODE!)"""
if self._debug:
print("*** Socket connect mode", conn_mode)
self.socket_open(socket_num, dest, port, conn_mode=conn_mode)
times = time.ticks()
while (time.ticks() - times) < 3: # wait 3 seconds
if self.socket_connected(socket_num):
return True
time.sleep(0.01)
raise RuntimeError("Failed to establish connection")
def _wait_for_ready(self):
"""Wait until the ready pin goes low"""
if self._debug:
print("Wait for ESP32 ready", end='')
times = time.ticks()
while (time.ticks() - times) < 10000: # wait up to 10 seconds
if not self._ready.value(): # we're ready!
break
if self._debug:
print('.', end='')
utime.sleep(0.05)
else:
raise RuntimeError("ESP32 not responding")
if self._debug:
print()
def readline(self):
"""Attempt to return as many bytes as we can up to but not including '\r\n'"""
#print("Socket readline")
stamp = time.ticks()
while b'\r\n' not in self._buffer:
# there's no line already in there, read some more
avail = min(_the_interface.socket_available(self._socknum), MAX_PACKET)
if avail:
self._buffer += _the_interface.socket_read(self._socknum, avail)
elif self._timeout > 0 and time.ticks() - stamp > self._timeout:
self.close() # Make sure to close socket so that we don't exhaust sockets.
raise RuntimeError("Didn't receive full response, failing out")
firstline, self._buffer = self._buffer.split(b'\r\n', 1)
gc.collect()
return firstline
def _timer_permission_check(self):
if self.unix:
timer_check = self._motion_start_time + self._motion_duration <= time.time(
)
else:
timer_check = self._motion_start_time + self._motion_duration <= time.ticks(
)
motion_finished = False
while not (motion_finished and timer_check):
try:
if self.unix:
time.sleep(0.1)
else:
time.sleep(100)
if self.kondo is not None:
current_motion = self.kondo.getMotionPlayNum()
except OSError:
if self.unix:
time.sleep(CHANNEL_WAIT_TIME / 1000)
else:
time.sleep(CHANNEL_WAIT_TIME)
if self.kondo is not None:
current_motion = self.kondo.getMotionPlayNum()
if self.kondo is not None:
motion_finished = current_motion == 0 or current_motion == 1 or current_motion == 2
else:
motion_finished = True
return True
def _send_command(self, cmd, params=None, *, param_len_16=False):
"""Send over a command with a list of parameters"""
if not params:
params = ()
packet_len = 4 # header + end byte
for i, param in enumerate(params):
packet_len += len(param) # parameter
packet_len += 1 # size byte
if param_len_16:
packet_len += 1 # 2 of em here!
while packet_len % 4 != 0:
packet_len += 1
# we may need more space
if packet_len > len(self._sendbuf):
self._sendbuf = bytearray(packet_len)
self._sendbuf[0] = _START_CMD
self._sendbuf[1] = cmd & ~_REPLY_FLAG
self._sendbuf[2] = len(params)
# handle parameters here
ptr = 3
for i, param in enumerate(params):
if self._debug >= 2:
print("\tSending param #%d is %d bytes long" % (i, len(param)))
if param_len_16:
self._sendbuf[ptr] = (len(param) >> 8) & 0xFF
ptr += 1
self._sendbuf[ptr] = len(param) & 0xFF
ptr += 1
for j, par in enumerate(param):
self._sendbuf[ptr + j] = par
ptr += len(param)
self._sendbuf[ptr] = _END_CMD
self._wait_for_ready()
with self._spi_device as spi:
times = time.ticks()
while (time.ticks() - times) < 1000: # wait up to 1000ms
if self._ready.value(): # ok ready to send!
break
else:
raise RuntimeError("ESP32 timed out on SPI select")
spi.write(self._sendbuf) # pylint: disable=no-member
if self._debug:
print("Wrote: ", [hex(b) for b in self._sendbuf[0:packet_len]])
def sendimage(spi, pin):
global last_time
frame = sensor.snapshot()
frame.draw_string(0,
0,
str(time.ticks() - last_time),
color=(255, 0, 0),
scale=2)
last_time = time.ticks()
#frame = frame.compressed(quality=45) 用此语句图片过大时会内存报错
frame = frame.compress(45)
print("size=", str(frame.size()), "time=", time.ticks() - last_time)
#减少生成data内存占用
#data = ustruct.pack("<bi%ds" % frame.size(), 85, frame.size(), frame) # 85 is a sync char.
data = ustruct.pack("<bi", 85, frame.size()) # 85 is a sync char.
sendblob(spi, pin, data, frame)
def _set_timer(self, duration):
self._motion_duration = duration
if self.unix:
self._motion_start_time = time.time()
time.sleep(int(duration / 1000))
else:
self._motion_start_time = time.ticks()
time.sleep(int(duration))
def QRCodeTest(loopCnt=120, barLen=120):
sensor.reset()
sensor.set_framerate(1 << 11)
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.VGA)
sensor.set_windowing((400, 272))
sensor.skip_frames(time=300)
sensor.set_auto_gain(False)
clock = time.clock()
avg = 0.0
startTick = time.ticks()
while (True):
if time.ticks() - startTick > loopCnt:
break
clock.tick()
img = sensor.snapshot()
#img.lens_corr(1.5) # strength of 1.8 is good for the 2.8mm lens.
t1 = time.ticks()
codeSet = img.find_qrcodes()
t2 = time.ticks() - t1
lnLen = (barLen * (loopCnt - (time.ticks() - startTick))) // loopCnt
DrawPgsBar(img, barLen, loopCnt, startTick, 'QR code scan')
avg = avg * 0.92 + t2 * 0.08
for code in codeSet:
rc = code.rect()
img.draw_rectangle(rc, thickness=2, color=(0, 191, 255))
#print(type(code))
#print(code.payload())
sPayload = code.payload()
#print(len(sPayload))
lnLen = len(sPayload) * 8
if rc[0] + lnLen >= 400:
x = 400 - lnLen
else:
x = rc[0]
img.draw_rectangle(x - 1,
rc[1] + 1,
lnLen + 2,
8,
color=(0, 0, 0),
fill=True)
img.draw_string(x, rc[1], sPayload)
print('algo time cost : %.2f ms' % (avg))
def run_until_complete(main_task=None, run_once=False):
global cur_task
excs_all = (CancelledError, Exception) # To prevent heap allocation in loop
excs_stop = (CancelledError, StopIteration) # To prevent heap allocation in loop
runs = 0
while True:
runs += 1
if run_once and runs > 1:break
# Wait until the head of _task_queue is ready to run
dt = 1
while dt > 0:
dt = -1
t = _task_queue.peek()
if t:
# A task waiting on _task_queue; "ph_key" is time to schedule task at
dt = max(0, ticks_diff(t.ph_key, ticks()))
elif not _io_queue.map:
# No tasks can be woken so finished running
return
# print('(poll {})'.format(dt), len(_io_queue.map))
_io_queue.wait_io_event(dt)
# Get next task to run and continue it
t = _task_queue.pop_head()
cur_task = t
try:
# Continue running the coroutine, it's responsible for rescheduling itself
exc = t.data
if not exc:
t.coro.send(None)
else:
t.data = None
t.coro.throw(exc)
except excs_all as er:
# Check the task is not on any event queue
assert t.data is None
# This task is done, check if it's the main task and then loop should stop
if t is main_task:
if isinstance(er, StopIteration):
return er.value
raise er
# Save return value of coro to pass up to caller
t.data = er
# Schedule any other tasks waiting on the completion of this task
waiting = False
if hasattr(t, "waiting"):
while t.waiting.peek():
_task_queue.push_head(t.waiting.pop_head())
waiting = True
t.waiting = None # Free waiting queue head
# Print out exception for detached tasks
if not waiting and not isinstance(er, excs_stop):
_exc_context["exception"] = er
_exc_context["future"] = t
Loop.call_exception_handler(_exc_context)
# Indicate task is done
t.coro = None
def FaceTest(loopCnt=220, barLen=120):
sensor.reset()
# Sensor settings
sensor.set_contrast(1)
#sensor.set_gainceiling(16)
# HQVGA and GRAYSCALE are the best for face tracking.
#sensor.set_framesize(sensor.VGA)
#sensor.set_windowing((320,240))
sensor.set_framesize(sensor.VGA)
sensor.set_windowing((320, 240))
sensor.set_pixformat(sensor.GRAYSCALE)
#sensor.set_auto_gain(False)
#sensor.set_auto_whitebal(True) # must be turned off for color tracking
# Load Haar Cascade
# By default this will use all stages, lower satges is faster but less accurate.
face_cascade = image.HaarCascade("frontalface", stages=25)
print(face_cascade)
clock = time.clock()
avg = 0.0
startTick = time.ticks()
while (True):
if time.ticks() - startTick > loopCnt:
break
clock.tick()
img = sensor.snapshot()
img.draw_string(4, 4, 'Face Detect', color=(0, 0, 0))
t0 = time.ticks()
objects = img.find_features(face_cascade,
threshold=0.75,
scale_factor=1.25)
t1 = time.ticks() - t0
avg = avg * 0.90 + t1 * 0.10
fID = 0
lnLen = (barLen * (loopCnt - (time.ticks() - startTick))) // loopCnt
DrawPgsBar(img, barLen, loopCnt, startTick)
for r in objects:
img.draw_rectangle(r, thickness=3)
img.draw_rectangle(r[0], r[1], 48, 10, fill=True)
fID += 1
s = 'face %d' % (fID)
img.draw_string(r[0], r[1], s, color=(0, 0, 0))
print('algo time cost : %.2f ms' % (avg))
def LENETTest(loopCnt=1200, barLen=60):
sensor.reset() # Reset and initialize the sensor.
sensor.set_contrast(3)
sensor.set_pixformat(
sensor.GRAYSCALE) # Set pixel format to RGB565 (or GRAYSCALE)
sensor.set_framesize(sensor.VGA) # Set frame size to QVGA (320x240)
sensor.set_windowing((84, 84)) # Set 128x128 window.
sensor.skip_frames(time=1400) # Wait for settings take effect.
sensor.set_auto_gain(False)
sensor.set_framerate(2 << 2)
#sensor.set_auto_whitebal(False)
#sensor.set_auto_exposure(False)
net = nn.load('/lenet.network')
labels = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9']
clock = time.clock()
avg = 0.0
pyb.LED(1).on()
startTick = time.ticks()
while (True):
if time.ticks() - startTick > loopCnt:
break
clock.tick()
img = sensor.snapshot()
img.draw_string(3, 8, 'recg 0-9', color=(0, 0, 0))
t1 = time.ticks()
tmp_img = img.copy().binary([(120, 255)], invert=True)
lst = net.search(tmp_img, threshold=0.8, min_scale=1, scale_mul=0.8, \
x_overlap=-1, y_overlap=-1, contrast_threshold=0.5, softmax=False)
t2 = time.ticks() - t1
avg = avg * 0.95 + t2 * 0.05
lnLen = (barLen * (loopCnt - (time.ticks() - startTick))) // loopCnt
img.draw_rectangle(0, 2, barLen + 1, 3)
img.draw_rectangle(0, 3, lnLen, 1, fill=True)
for obj in lst:
print('Detected %s - Confidence %f%%' %
(labels[obj.index()], obj.value()))
img.draw_rectangle(obj.rect())
img.draw_string(barLen + 8,
2,
labels[obj.index()],
color=(0, 0, 0))
# print(clock.fps())
print('algo time cost : %.2f ms' % (avg))
def run_until_complete(main_task=None):
global cur_task
excs_all = (CancelledError, Exception
) # To prevent heap allocation in loop
excs_stop = (CancelledError, StopIteration
) # To prevent heap allocation in loop
while True:
# Wait until the head of _task_queue is ready to run
dt = 1
while dt > 0:
dt = -1
t = _task_queue.peek()
if t:
# A task waiting on _task_queue; "ph_key" is time to schedule task at
dt = max(0, ticks_diff(t.ph_key, ticks()))
elif not _io_queue.map:
# No tasks can be woken so finished running
return
# print('(poll {})'.format(dt), len(_io_queue.map))
_io_queue.wait_io_event(dt)
# Get next task to run and continue it
t = _task_queue.pop_head()
cur_task = t
try:
# Continue running the coroutine, it's responsible for rescheduling itself
exc = t.data
if not exc:
t.coro.send(None)
else:
t.data = None
t.coro.throw(exc)
except excs_all as er:
# Check the task is not on any event queue
assert t.data is None
# This task is done, check if it's the main task and then loop should stop
if t is main_task:
if isinstance(er, StopIteration):
return er.value
raise er
# Schedule any other tasks waiting on the completion of this task
waiting = False
if hasattr(t, "waiting"):
while t.waiting.peek():
_task_queue.push_head(t.waiting.pop_head())
waiting = True
t.waiting = None # Free waiting queue head
if not waiting and not isinstance(er, excs_stop):
# An exception ended this detached task, so queue it for later
# execution to handle the uncaught exception if no other task retrieves
# the exception in the meantime (this is handled by Task.throw).
_task_queue.push_head(t)
# Indicate task is done by setting coro to the task object itself
t.coro = t
# Save return value of coro to pass up to caller
t.data = er
def DrawPgsBar(img, barLen, loopCnt, startTick, width=5):
global barCol
lnLen = (barLen * (loopCnt - (time.ticks() - startTick))) // loopCnt
if (barCol & 0x80) == 0:
c = barCol & 0x7F
else:
c = 128 - (barCol & 0x7F)
img.draw_rectangle(2, 2, barLen + 2, width, color=(0,0,0))
img.draw_rectangle(2, 3, lnLen, width-2, fill=True, color=(c,c,c))
barCol += 16
def read(self, size=0):
"""Read up to 'size' bytes from the socket, this may be buffered internally!
If 'size' isnt specified, return everything in the buffer."""
#print("Socket read", size)
if size == 0: # read as much as we can at the moment
while True:
avail = min(_the_interface.socket_available(self._socknum), MAX_PACKET)
if avail:
self._buffer += _the_interface.socket_read(self._socknum, avail)
else:
break
gc.collect()
ret = self._buffer
self._buffer = b''
gc.collect()
return ret
stamp = time.ticks()
to_read = size - len(self._buffer)
received = []
while to_read > 0:
#print("Bytes to read:", to_read)
avail = min(_the_interface.socket_available(self._socknum), MAX_PACKET)
if avail:
stamp = time.ticks()
recv = _the_interface.socket_read(self._socknum, min(to_read, avail))
received.append(recv)
to_read -= len(recv)
gc.collect()
if self._timeout > 0 and time.ticks() - stamp > self._timeout:
break
#print(received)
self._buffer += b''.join(received)
ret = None
if len(self._buffer) == size:
ret = self._buffer
self._buffer = b''
else:
ret = self._buffer[:size]
self._buffer = self._buffer[size:]
gc.collect()
return ret
def __init__(self, P=0.2, I=0.0, D=0.0):
self.Kp = P
self.Ki = I
self.Kd = D
self.sample_time = 0.00
self.current_time = time.ticks()
self.last_time = self.current_time
self.clear()
def BlobTest(thresholds):
sensor.reset()
pyb.LED(1).on()
sensor.set_pixformat(sensor.RGB565)
#sensor.set_framesize(sensor.VGA)
#sensor.set_windowing((432,432))
sensor.set_framesize(sensor.QVGA)
#sensor.set_framerate(1<<9|7<<11)
#sensor.set_framerate(2<<9|2<<11) #120/3=40M
sensor.set_auto_gain(True)
#sensor.set_windowing((50, 50, 50, 90))
sensor.skip_frames(time=500)
#sensor.__write_reg(0xac, 0xF7) #needed for CIF RGB565
#sensor.set_auto_gain(True) # must be turned off for color tracking
#sensor.set_auto_whitebal(False) # must be turned off for color tracking
clock = time.clock()
print('main loop')
avg = 0
lpCnt = 0
#sensor.__write_reg(0xa6, c)
for i in range(50000):
clock.tick()
img = sensor.snapshot()
n = 0
t1 = time.ticks()
#pyb.LED(2).toggle()
blbs = img.find_blobs(thresholds,
pixels_threshold=120,
area_threshold=120)
t2 = time.ticks() - t1
avg = avg * 0.95 + t2 * 0.05
for blob in blbs:
img.draw_rectangle(blob.rect(), thickness=2, color=(0, 255, 255))
img.draw_cross(blob.cx(), blob.cy())
n += 1
#print('blob %d, cx=%d,cy=%d' % (n,blob.cx(), blob.cy()))
print('time=', avg, lpCnt)
#if lpCnt % 10 == 0:
#print('fps=', clock.fps())
lpCnt += 1
def run_until_complete(main_task=None):
global cur_task
excs_all = (CancelledError, Exception) # To prevent heap allocation in loop
excs_stop = (CancelledError, StopIteration) # To prevent heap allocation in loop
while True:
# Wait until the head of _queue is ready to run
dt = 1
while dt > 0:
dt = -1
if _queue.next:
# A task waiting on _queue
if isinstance(_queue.next.data, int):
# "data" is time to schedule task at
dt = max(0, ticks_diff(_queue.next.data, ticks()))
else:
# "data" is an exception to throw into the task
dt = 0
elif not _io_queue.map:
# No tasks can be woken so finished running
return
#print('(poll {})'.format(dt), len(_io_queue.map))
_io_queue.wait_io_event(dt)
# Get next task to run and continue it
t = _queue.pop_head()
cur_task = t
try:
# Continue running the coroutine, it's responsible for rescheduling itself
if isinstance(t.data, int):
t.coro.send(None)
else:
t.coro.throw(t.data)
except excs_all as er:
# This task is done, schedule any tasks waiting on it
if t is main_task:
if isinstance(er, StopIteration):
return er.value
raise er
t.data = er # save return value of coro to pass up to caller
waiting = False
if hasattr(t, 'waiting'):
while t.waiting.next:
_queue.push_head(t.waiting.pop_head())
waiting = True
t.waiting = None # Free waiting queue head
_io_queue.remove(t) # Remove task from the IO queue (if it's on it)
t.coro = None # Indicate task is done
# Print out exception for detached tasks
if not waiting and not isinstance(er, excs_stop):
print('task raised exception:', t.coro)
sys.print_exception(er)
def _wait_response_cmd(self,
cmd,
num_responses=None,
*,
param_len_16=False):
"""Wait for ready, then parse the response"""
self._wait_for_ready()
responses = []
with self._spi_device as spi:
times = time.ticks()
while (time.ticks() - times) < 1000: # wait up to 1000ms
if self._ready.value(): # ok ready to send!
break
else:
raise RuntimeError("ESP32 timed out on SPI select")
self._wait_spi_char(spi, _START_CMD)
self._check_data(spi, cmd | _REPLY_FLAG)
if num_responses is not None:
self._check_data(spi, num_responses)
else:
num_responses = self._read_byte(spi)
for num in range(num_responses):
param_len = self._read_byte(spi)
if param_len_16:
param_len <<= 8
param_len |= self._read_byte(spi)
if self._debug >= 2:
print("\tParameter #%d length is %d" % (num, param_len))
response = bytearray(param_len)
self._read_bytes(spi, response)
responses.append(response)
self._check_data(spi, _END_CMD)
if self._debug:
print("Read %d: " % len(responses[0]), responses)
return responses
import sensor, avi, time
REC_LENGTH = 15 # recording length in seconds
# Set sensor parameters
sensor.reset()
sensor.set_brightness(-2)
sensor.set_contrast(1)
sensor.set_framesize(sensor.QVGA)
sensor.set_pixformat(sensor.JPEG)
vid = avi.AVI("1:/test.avi", 320, 240, 15)
start = time.ticks()
clock = time.clock()
while ((time.ticks()-start) < (REC_LENGTH*1000)):
clock.tick()
# capture and store frame
image = sensor.snapshot()
vid.add_frame(image)
print(clock.fps())
vid.flush()
