I have 3 scripts one each to read each MCP3008.
The second script is the same except the pin number is 8 and the third script is pin 7.
Code: Select all
#!/usr/bin/env python from gpiozero import MCP3008 import time while True: V0 = MCP3008(channel=0, select_pin=25) V1 = MCP3008(channel=1, select_pin=25) V2 = MCP3008(channel=2, select_pin=25) V3 = MCP3008(channel=3, select_pin=25) V4 = MCP3008(channel=4, select_pin=25) V5 = MCP3008(channel=5, select_pin=25) V6 = MCP3008(channel=6, select_pin=25) V7 = MCP3008(channel=7, select_pin=25) M0 = int (V0.value * 1000) M1 = int (V1.value * 1000 ) M2 = int (V2.value * 1000 ) M3 = int (V3.value * 1000 ) M4 = int (V4.value * 1000 ) M5 = int (V5.value * 1000 ) M6 = int (V6.value * 1000 ) M7 = int (V7.value * 1000 ) time.sleep(1.2) print M0," ",M1," ",M2," ",M3," ",M4," ",M5," ",M6," ",M7
I then start the scripts in 3 different windows of putty , everything reads fine.
IF I then stop the last script the readings on the first 2 scripts go to 0 as the readings abd keep scrolling..
If I restart the last script the first 2 scripts read their proper readings without touching them.
It nearly seems that the last script takes over the pins and wont let the others keep reading
If I close script 3 and restart script 1 , script 1 & 2 read normally.
Is there a way to force the existing running script to be in charge ?
Incidentally the 3x3008 have been running a year or more using rpi.gpio with no issues