Running v3.2p3 on Raspberry Pi, I have set up some DS18B20 sensors on a
test system, all of them are powered, but simultaneous does not seem to
be working
The code is below, when I run it the first loop takes 16 seconds then it
loops at 3 seconds for a while, then a 16 second etc. so it looks like
it does slow individual conversions, then uses cached values until they
expire, then another slow individual conversion, etc. Have I got
something wrong here?
Thanks
Mick
#!/usr/bin/python3
# sensor_read.py
import pyownet
import time
def main():
owp = pyownet.protocol.proxy()
while True:
start = time.time()
owp.write('/simultaneous/temperature', b'1')
time.sleep(1)
print('start of sensor_read.py')
sen_lst = ['Solar_Pnl_1A', 'Solar_Pnl_2A','Solar_Pnl_1B',
'Pool_Sol_X', 'Pool_CH_X', 'DHW_Mid_Top', 'DHW_Mid_Btm',
'DHW_Top','Temp5', 'Temp19', 'Temp20','Temp21', 'Temp22', 'Temp23',
'Temp25', 'Temp26', 'Temp27', 'Temp29', 'Temp30']
prop_lst = ['/type', '/power', '/latesttemp']
for p in prop_lst:
print('%s ' %p, end = '')
print('')
for sen in sen_lst:
print('\n%s ' %sen, end = '')
for prop in prop_lst:
try:
print('%s ' %(owp.read('/uncached/' + sen +
prop).decode()), end = '')
except:
print('failed! ', end = '')
endt = time.time() - start
print('\nTime = %f' %endt)
if __name__ == "__main__":
main()
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