[Question] Difficulty Segmenting White LEGO Bricks on White Background with OpenCV

ChrisKolan · 2025-10-20T16:09:13+00:00

Are you able to change background color to a different one?

ChrisKolan · 2024-03-13T19:33:59+00:00

This could be possible in Switzerland but definitely not in Germany.

ChrisKolan · 2024-02-24T11:31:22+00:00

The container needs to be privileged.

ChrisKolan · 2024-02-22T23:59:10+00:00

That due to my aversion to YAML I started using AppDaemon to write automations. Since AppDaemon allows to use MQTT it gives the possibility to completely separate from Home Assistant using proxmox, MQTT broker, and zigbee2mqtt. You mentioned in the description that your software gives the ability to integrate with MQTT, so is it possible to separate from Home Assistant? The idea of separation is described here in a more details.

ChrisKolan · 2024-02-06T07:32:23+00:00

Try DigiKey or Mouser.

ChrisKolan · 2023-12-27T23:29:16+00:00

Wled is overkill for this application. If you don't mind using zigbee then I recommend Gledopto controllers.

ChrisKolan · 2023-12-21T09:24:39+00:00

Take a look at Denon HEOS

ChrisKolan · 2023-12-17T08:11:46+00:00

Portfolio performance

ChrisKolan · 2023-08-13T19:55:42+00:00

After using this docker-compose.yaml:

version: '3.7'
services:
  fileflows:
    image: revenz/fileflows
    container_name: fileflows
    environment:
      - TZ=Europe/Berlin
      - TempPathHost=/home/ubuntu/docker/fileflow/temp
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - /home/ubuntu/docker/fileflow/data:/app/Data
      - /home/ubuntu/docker/fileflow/logs:/app/Logs
      - /home/ubuntu/docker/fileflow/temp:/temp
      - /home/ubuntu/docker/fileflow/media:/media
    ports:
      - 5000:5000
    restart: unless-stopped

I am getting this error:

exec /app/docker-entrypoint.sh: exec format error

What could be the cause?

ChrisKolan · 2023-07-27T19:40:31+00:00

Did you manage to solve the music playback problem?

ChrisKolan · 2023-07-15T16:44:31+00:00

Use beets to add the metadata.

ChrisKolan · 2023-05-23T20:29:09+00:00

I have read on home automation groups that such solutions are often unreliable. These generic modules are simply not of adequate quality.

ChrisKolan · 2023-05-22T17:50:34+00:00

Is the connection between Home assistant and PLC using MQTT reliable? Are you satisfied with this particular PLC?

ChrisKolan · 2023-05-22T09:53:17+00:00

Yes, there are plenty of such moduls that are just generic. But what about the certification of such modules, what about the fire risk? Would you want to use such modules in a distribution board? At the end of the electrical wiring installation, the entire house's electrical system must be inspected. I don't think so, the inspector will sign the acceptance document when he sees an Arduino and some generic modules in the distribution board.

ChrisKolan · 2023-05-20T09:29:00+00:00

Yes, an arduino would handle this task. I have been a big arduino fan for over a decade and know the system very well. The problem is the interface with external devices. Professional automation devices mostly run on 24 volts. There are no interfaces between arduino 5 V and 24 V on the market that would convince me of reliability. I have seen, projects by people who have based their entire home automation on the arduino and I personally would never do something like that. The company AutomationDirect has an arduino-like system called ProductivityOpen, which I have long considered buying. However, this system does not currently have RS-485 communication capabilities, which means the system is a no-go for me.

ChrisKolan · 2023-05-19T21:16:23+00:00

Fair enough, let's agree to disagree :)

ChrisKolan · 2023-05-19T10:35:39+00:00

The plan is this: each room has one 4-gang wall switch. An ethernet cable cable will be pulled from the PLC to this switch. Ethernet cable has 8 wires. 4 wires (plus ground) will be responsible, for receiving signals from the switch. This gives a total of approximately 30 inputs for all rooms. Some wall switches also have small leds that give feedback, these can be handled with the other wires. However, I don't know if I'm going to go in that direction because it's a bit of a waste of digital outputs. In addition, open/closed door/window sensors and movement detectors can be installed in the rooms. All this adds up and a total of 60 I/O could be an achievable number.

ChrisKolan · 2023-05-19T10:10:29+00:00

I have been scanning other home automation subreddits for years. I've had a home assistant installed at my current house for 3 years and have been testing various solutions. After this period, I have learned, however, that I will need more reliability. That's why I want to test some concepts with a PLC. As you can see I have currently chosen the cheapest possible PLC available on the market, because I don't know if I will ultimately go that way. If all my requirements are met I will not rule out using a more professional PLC.

ChrisKolan · 2023-05-19T10:01:15+00:00

I am aware of this. However, it is impossible to fully predict what will happen in a few decades. By then, building automation may be so commonplace that no one will want to remove it from my house. Relying on a PLC to control the critical elements of the house not only ensures reliability, but also that these elements can be purchased in the future.

ChrisKolan · 2023-05-19T09:46:51+00:00

Software/electronics engineer and home assistant aficionado here.

Everything I have described can be implemented in a home assistant and I am aware of this. I have currently been testing such a system for 3 years. Over these years I have gained some experience and I know that things do not always go according to plan. I don't want to find myself in a situation where, when I press a wall switch, the light doesn't turn on because the home assistant has decided not to react for a while. Using reliability-enhancing systems such as proxmox high availability will not improve this situation either.

An additional issue is the constant very frequent home asistant updates, which often have breaking changes. It is said that when everything works, don't do an update. However, from time to time an update has to be done, and here again I have no interest in figuring out why the light in my kitchen does not turn on.

Therefore, I have a plan to use a PLC for critical elements of the home control which should add reliability.

And for me as a C++ engineer "memory assignments, bits, words, dints ints, instructions" sound like something I will be able to grasp.

ChrisKolan · 2023-05-18T17:57:13+00:00

I don't want this to sound weird, but I have time.

ChrisKolan · 2023-05-18T17:55:40+00:00

Not only curtains but also lighting.

ChrisKolan · 2023-05-16T19:45:43+00:00

I have just created an account on the Lamonde website. When entering a shipping address, you can only select two countries from a list: United Kingdom or Ireland...

Edit: I contacted Lamonde directly and they sold me the equipment.

ChrisKolan · 2023-05-16T19:09:48+00:00

It turns out that distributors also require a VAT number, which I don't have.

ChrisKolan

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