I got temperature, pressure, and altitude readings on my PI using a sensor:
code.py every time by myself. I am trying to automate it somehow so it will keep running itself for the time I want. Is there a way I can write code for both the tasks?
Thank you.
There are two things required here. First a script i.e code.py to log the functional behavior like temperature, pressure, and altitude readings along with error/response during the process. Another is the script executions logs i.e a success or failure during the scheduled time and other system logs.
For first job, you have to do by your self but ensure to have a logger module in place to log the process flow.
For Second job, you can use OS provided scheduler crontab for Linux based os. For example to execute script every minutes
* * * * * python /home/script/code.py > /home/script/code.log 2>&1
For more about scheduler jobs, you can refer here
The time module is your friend here. You can set up an infinite loop with while True: and use time.sleep(secs) at the end of the loop (after output).
I'd use additional controller script like this:
import subprocess;
import time;
import sys;
x = True;
while x:
while exit_code!=0:
try:
exit_code = subprocess.check_call(['python', 'collect_data.py', '-cli_args_if_needed']);
except:
print(sys.exec_info()[1]);
print('Relaunching in 5 seconds');
time.sleep(5)
crontabto run any program at intervals. Ortime.sleep()in Python to pause.csv, see here). Then you read the file later on.