def read_stuff():
a_list = []
_thread.start_new_thread(input_thread, (a_list, ))
while not a_list: #Checks for termination keystroke on separate thread
try: # If no term. keystroke, collect data
ser.write(send_string) #Sends command send_string to serial port
# Read 2 bytes and converts to integer as little endian,
# assign to read_serial
read_serial = struct.unpack('<H', ser.read(size=2))
scanvalue = ul.t_in(board_num, channel, tempscale)
csvData = [
datetime.datetime.now().timestamp(), read_serial[0], scanvalue
]
print(csvData)
writeCSV.writerow(csvData)
time.sleep(1)
except ULError as e:
# Display the error
print("A UL error occurred. Code: " + str(e.errorcode) +
" Message: " + e.message)
break
def run_example():
board_num = 0
if use_device_detection:
ul.ignore_instacal()
if not util.config_first_detected_device(board_num):
print("Could not find device.")
return
channel = 0
ai_props = AnalogInputProps(board_num)
if ai_props.num_ti_chans < 1:
util.print_unsupported_example(board_num)
return
try:
# Get the value from the device (optional parameters omitted)
value = ul.t_in(board_num, channel, TempScale.CELSIUS)
# Display the value
print("Channel " + str(channel) + " Value (deg C): " + str(value))
except ULError as e:
util.print_ul_error(e)
finally:
if use_device_detection:
ul.release_daq_device(board_num)
def getTemp(self):
if not self.isInit:
print("Device Not Initialized")
return 0
try:
startTime = time.time()
# Get the value from the device (optional parameters omitted)
value = ul.t_in(self.board_num, self.channel, TempScale.CELSIUS)
# Display the value
#print("Channel " + str(self.channel) + " Value (deg C): " + str(value))
#print("Temp acquisition time is : {}".format(time.time()-startTime))
return value
except ULError as e:
util.print_ul_error(e)
return 0
def update_value(self):
channel = self.get_channel_num()
try:
# Get a value from the device
value = ul.t_in(self.board_num, channel, TempScale.CELSIUS)
# Display the raw value
self.value_label["text"] = '{:.3f}'.format(value)
# Call this method again until the stop button is pressed (or an
# error occurs)
if self.running:
self.after(100, self.update_value)
except ULError as e:
self.stop()
show_ul_error(e)
def run_example():
# By default, the example detects and displays all available devices and
# selects the first device listed. Use the dev_id_list variable to filter
# detected devices by device ID (see UL documentation for device IDs).
# If use_device_detection is set to False, the board_num variable needs to
# match the desired board number configured with Instacal.
use_device_detection = True
dev_id_list = []
board_num = 0
try:
if use_device_detection:
config_first_detected_device(board_num, dev_id_list)
daq_dev_info = DaqDeviceInfo(board_num)
if not daq_dev_info.supports_analog_input:
raise Exception('Error: The DAQ device does not support '
'analog input')
print('\nActive DAQ device: ',
daq_dev_info.product_name,
' (',
daq_dev_info.unique_id,
')\n',
sep='')
ai_info = daq_dev_info.get_ai_info()
if ai_info.num_temp_chans <= 0:
raise Exception('Error: The DAQ device does not support '
'temperature input')
channel = 0
# Get the value from the device (optional parameters omitted)
value = ul.t_in(board_num, channel, TempScale.CELSIUS)
# Display the value
print('Channel', channel, 'Value (deg C):', value)
except Exception as e:
print('\n', e)
finally:
if use_device_detection:
ul.release_daq_device(board_num)
for i in range(runs):
# add chamber control
time.sleep(10)
ser0.write(cmd0.encode())
ser1.write(cmd1.encode())
time.sleep(0.5)
s0 = ser0.read(100).decode('utf-8')
acc_temp = int(s0.split()[3][17:])
s1 = ser1.read(200).decode('utf-8')
t1 = s1.find("test")
t2 = s1.find("please")
s1 = s1[t1 + 6:t2 - 3]
ain6 = int(s1[7:])
ch0 = float("{:.2f}".format(ul.t_in(board_num, channel0, 0)))
ch1 = float("{:.2f}".format(ul.t_in(board_num, channel1, 0)))
ch2 = float("{:.2f}".format(ul.t_in(board_num, channel2, 0)))
ch3 = float("{:.2f}".format(ul.t_in(board_num, channel3, 0)))
print(acc_temp, ain6, ch0, ch1, ch2, ch3)
# sheet1.write(i + 1, 0, t_start + t_step * i) # write temp setting in excel
sheet1.write(i + 1, 1, ain6) # write adc reading
sheet1.write(i + 1, 2, acc_temp)
sheet1.write(i + 1, 3, ch0)
sheet1.write(i + 1, 4, ch1)
sheet1.write(i + 1, 5, ch2)
sheet1.write(i + 1, 6, ch3)
wb.close()
ser0.close()
ser1.close()
def execute(self):
log.info("Starting Measurement")
#prev_T = read_T
T_min = ul.t_in(0, 0, TempScale.KELVIN)
T = [T_min]
start_time = time.time()
while np.mean(T) < self.T_max:
log.info("Temperature is at %d, waiting for it to reach %d" % \
(np.mean(T), self.T_max))
sleep(self.delay)
elapsed_time = time.time() - start_time
T, M1, M2, M3, M4 = [], [], [], [], []
for i in range(self.num_averages):
log.info("Doing average %d of %d" % (i, self.num_averages))
if self.mm1_measurement:
M1.append(self.mm1.voltage)
else:
M1.append(self.mm1.current)
if self.mm2_measurement:
M2.append(self.mm2.voltage)
else:
M2.append(self.mm2.current)
if self.mm3_measurement:
M3.append(self.mm3.voltage)
else:
M3.append(self.mm3.current)
if self.mm4_measurement:
M4.append(self.mm4.voltage)
else:
M4.append(self.mm4.current)
T.append(ul.t_in(0, 0, TempScale.KELVIN))
sleep(self.delay / (self.num_averages + 1))
prog = int(100 * np.abs(
(np.mean(T) - T_min) / (self.T_max - T_min)))
self.emit("progress", prog)
data = {
'elapsed_time': elapsed_time,
'T': np.mean(T),
'T_err': np.std(T),
'MM1_reading': np.mean(M1),
'MM1_error': np.std(M1),
'MM2_reading': np.mean(M2),
'MM2_error': np.std(M2),
'MM3_reading': np.mean(M3),
'MM3_error': np.std(M3),
'MM4_reading': np.mean(M4),
'MM4_error': np.std(M4)
}
self.emit('results', data)
if self.should_stop():
log.warning("Catch stop command in procedure")
break
else:
continue
