[Owfs-developers] Simultaneous not working

[Mick S. <mi...@su...>]

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()