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import sys, time
import serial
import matplotlib.pyplot as plt; plt.rcdefaults()
import numpy as np
import seaborn as sns
sns.set()
duration = 60
plot = "plot"
voltageData = {}
currentData = {}
voltage = 0
current= 0
maxVoltage = 0.0
minVoltage = 1000000.0
maxCurrent = 0.0
minCurrent = 1000000.0
x_ticks = []
if len(sys.argv) > 2:
duration = int(sys.argv[2])
if len(sys.argv) > 3:
plot = sys.argv[3]
start_time = time.time()
line = serial.Serial(sys.argv[1], 230400, timeout=1000, parity=serial.PARITY_NONE)
while time.time() < start_time + duration:
s = line.readline()
if not s.startswith('INA226 POWER BENCH') and not s.startswith('read current offset from EEPROM'):
if s.find('V') != -1:
t, d = s.split(':')
dummy, voltage = d.split('=')
voltage = float(voltage)/1000
t = int(t)
voltageData[t] = voltage
print t, 'V=', voltageData[t]
if maxVoltage < voltage:
maxVoltage = voltage
if minVoltage > voltage:
minVoltage = voltage
if s.find('I') != -1:
t, d = s.split(':')
dummy, current = d.split('=')
current = float(current)/10
t = int(t)
x_ticks.append(t)
currentData[t] = current
print t, 'I=', currentData[t]
if maxCurrent < current:
maxCurrent = current
if minCurrent > current:
minCurrent = current
voltageSerie = []
currentSerie = []
totalVoltage = 0.0
totalCurrent = 0.0
for t in range(duration * 1000):
if t in voltageData:
voltage = voltageData[t]
voltageSerie.append(voltage)
totalVoltage += voltage
if t in currentData:
print "current change:", current, 'at', t
current = currentData[t]
currentSerie.append(current)
totalCurrent += current
text = "DURATION: %s s\n" % duration
text += "MIN VOLTAGE: %s V\n" % minVoltage
text += "MAX VOLTAGE: %s V\n" % maxVoltage
text += "MIN CURRENT: %s uA\n" % minCurrent
text += "MAX CURRENT: %s uA\n" % maxCurrent
text += "AVG VOLTAGE: %1.2f V\n" % (totalVoltage / (duration * 1000))
text += "AVG CURRENT: %1.2f uA\n" % (totalCurrent / (duration * 1000))
print text
if plot == "plot":
plt.plot(x_ticks, currentSerie)
elif plot == "bar":
plt.bar(x_ticks, currentSerie)
plt.ylabel('uA')
plt.yscale('log')
plt.grid(True,which="both")
plt.title('POWER TESTBENCH')
plt.text(200, int(maxCurrent) / 4, text, fontdict={'family': 'serif', 'color': 'darkred', 'weight': 'normal', 'size': 10})
plt.show() |
Installation Python2.7 et fichiers d'import
Répondre avec citation
Envoyé par f-leb
Et si Python2.7 est installé maintenant, oui, pourquoi pas faire des tests...
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