def initCMMD(self):
DES_CMMD = 2
sensor = Sensor(self.calMatrix)
for i in range(6):
current_command = 0
sensor.config_dac(i, current_command)
sample = sensor.poll()
while sample.sum[i] < DES_CMMD:
current_command += 1
sensor.config_dac(i, current_command)
sample = sensor.poll()
while sample.sum[i] > DES_CMMD:
current_command -= 0.1
sensor.config_dac(i, current_command)
sample = sensor.poll()
while sample.sum[i] < DES_CMMD:
current_command += 0.01
sensor.config_dac(i, current_command)
sample = sensor.poll()
print "**************************************"
print "Common-mode values of channels A to F:"
print sample.sum
print "**************************************"
sensor.disconnect()
def __init__(self):
signal.signal(signal.SIGINT, self.signal_handler)
filename = './calibration.cal'
root = xml.parse(str(filename)).getroot()
axes = root.findall('Calibration/Axis')
calMatrix = np.array(
[[float(axes[i].attrib['values'].split()[j]) for j in range(6)]
for i in range(6)])
sensor = Sensor(calMatrix)
self.time = []
self.sums = []
self.diff = []
self.temp = []
ma = 0
sumMax = 0
start = time.time()
try:
while sumMax < 2.386:
sample = sensor.poll()
if sample != None:
self.time.append(time.time() - start)
self.temp.append(sample.temperature)
self.sums.append(sample.sum)
self.diff.append(sample.differential)
if sample.isSaturated():
print('Saturated')
break
sumMax = max(self.sums[-1])
# print('Max sum value: ' + str(sumMax))
# print('Current: ' + str(ma) + 'mA')
sensor.config_dac(-1, ma)
ma += 0.1
finally:
np.savetxt('./times.txt', np.array(self.time))
np.savetxt('./temps.txt', np.array(self.temp))
np.savetxt('./sum.txt', np.array(self.sums))
np.savetxt('./diff.txt', np.array(self.diff))
from sensor import Sensor
import time
import numpy as np
DES_CMMD = 2
calMatrix = np.eye(6)
sensor = Sensor(calMatrix)
#Turn on LEDs
# test all modules are working
for i in range(6):
sensor.config_dac(i, 7)
cont = True
time.sleep(1)
sample = sensor.poll()
for cmmd in sample.sum:
if cmmd < 0.5:
cont = False
print('Sum Signal too low (' + str(cmmd) + 'V)')
for i in range(6):
current_command = 0
sensor.config_dac(i, current_command)
sample = sensor.poll()
while sample.sum[i] < DES_CMMD:
current_command += 1
sensor.config_dac(i, current_command)
sample = sensor.poll()