Octoprint controlling electric lock

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1

Hello all,
I am in charge of a workshop including a 3D printer at my university. For this, I have converted a key box so that it can be opened via an electric lock with a coil. I would like to control the coil via Octoprint so that I can create an account there for all users. The connection between Raspberry and lock can either with an additional ESP or directly through a GPIO.
I have discovered the Enclousure plugin, but it looks depricated. Alternatively, control via Tasmota and an ESP would also be possible, but communication there is only possible via http, which I don't want to operate unencrypted in our network with other users. Do you have any other good ideas for implementation?
Many greetings
Joko

2

Hello @Joko !

That does not it will not work.
(What have I written there :man_facepalming:)

3

Check out the SIOControl plugIn. It employs a MC to do the IO control. It might be a good option for your setup.

SIOControl

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4

Thanks for your reply and idea. Thats look pretty good. Do you know if it is possible to switch the output after a few seconds to off? People are stupid and I want to prevent that the coil has all the time power if the forget to switch the output to off.

5

SIOControl currently does not support an interval output at this time. That said, it would be a minor change to the firmware to hard code a relay to turn off after a set number of seconds.

6

Where do I have to modify the code? I found the "SIO_ESP32WRM_Relay_X2" firmware, which looks well for my case.

7

SIO_ESP32WRM_Relay_X2.zip (5.0 KB)

Assuming you are taking VERSIONINFO "SIO_ESP32WRM_Relay_X2 1.0.9"

I have uploaded a zip that you can use to replace the "SIO_ESP32WRM_Relay_X2.ino" file.
Here is what is done.

We will add a reset for IO12 (relay 2 on the related board) Real IO point is 17

I will suggest that you update the #define VERSIONINFO to the following but its merely to help if you need support.
"SIO_ESP32WRM_Relay_X2 1.0.9_joko"

On line 121 Add:
TimeRelease ResetOutPut12; unsigned long IO12ResetTime = 3000; //resets after 3 seconds

At the end of the loop line ~138 .
Add the following.

  if (IO[12] == 1 && !ResetOutPut12.isRunning()){
    Serial.println("IO Changed, timer is set");
    ResetOutPut12.set(IO12ResetTime); 
  }else if(IO[12] == 1 && ResetOutPut12.check()){
    digitalWrite(IO12,LOW);
    ResetOutPut12.clear();
  }

I did a quick test and it seems to be working well. I will look at how this functionality can be added in a future update.

Hope this works out for you.

8

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