I have a RevPi connect with a RevPI DIO module. I'm controlling the DIO module via a python script running inside a Docker container. The script is switching the output states of the DIO module in the order of 10-100 times a day.
I noticed that sometimes (once every 2-3 days) the script fails to change the load state, i.e., from the script log I see that the script has correctly switched off the output but the output is not switched off (e.g. if I execute piTest -r output)
I'm changing the load state by calling the _issue_deactivation_command of the below class:
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class RevPiAttachedLoad(Load):
def __init__(self, name: str, consumption: int, revpi_io_obj: IOList, revpi_output_name: str, active_on_high: bool = True):
super(RevPiAttachedLoad, self).__init__(name, consumption)
self._revpi_io_obj = revpi_io_obj
self._revpi_output_name = revpi_output_name
if active_on_high:
self._deactivation_value = False
self._activation_value = True
else:
self._deactivation_value = True
self._activation_value = False
if revpi_io_obj is None:
raise ValueError("RevpiConnector MUST be instantiated if one wants to use RevPiAttachedLoad")
if self._revpi_output_name not in self._revpi_io_obj:
raise ValueError("Unvalid/Unknown output name %s" % self._revpi_output_name)
def _issue_deactivation_action(self):
self._revpi_io_obj[self._revpi_output_name].value = self._deactivation_value
def _issue_activation_action(self):
self._revpi_io_obj[self._revpi_output_name].value = self._activation_value
Is the above code the right way to change an output?
Is there a way to ensure that the output has correctly changed state?
I noticed that there is also a wait function in the io object but I'm not sure how to use it.
Some additional details on the setup:
Not sure if it's important but the script run several threads. Only one thread is changing the state of a specific output.
I'm running the python script inside a Docker container, with the following docker-compose config:
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version: '2'
services:
watt-cutter:
image: watt-cutter:devel
container_name: watt-cutter
restart: unless-stopped
command: /app/start.sh /app/conf.json
volumes:
- ./conf.json:/app/conf.json
- /etc/revpi/config.rsc:/etc/revpi/config.rsc
ports:
- 9105:9105
devices:
- /dev/piControl0:/dev/piControl0
2022-05-25-revpi-buster.img
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Found 2 devices:
Address: 0 module type: 105 (0x69) RevPi Connect V1.0
Module is present
input offset: 113 length: 6
output offset: 119 length: 5
Address: 31 module type: 96 (0x60) RevPi DIO V1.5
Module is present
input offset: 0 length: 70
output offset: 70 length: 18Alex
