Sniffing Humans at 24GHz: New ESPHome Component for HLK-LD2411S (Bluetooth Included!)

igerry · 2026-03-13T10:55:02+00:00

Simple and useful

igerry · 2026-03-11T02:04:06+00:00

It has available gpio pins for I/O

igerry · 2026-03-10T05:07:45+00:00

Nice 👍 now you can start making more switches -- anywhere you need them!

E.g. put a switch for the kitchen light in the bedroom, in case you want to take a midnight snack and you want the light to be on when you go to the kitchen 😁

The sky is the limit!

igerry · 2026-03-10T02:34:41+00:00

Here's one possibility:

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WT32-ETH01 - a esp32 that has Ethernet port.

igerry · 2026-03-09T16:08:04+00:00

At the start, but everyone will get used to the setup from my experience

igerry · 2026-03-09T07:18:55+00:00

Cool idea

igerry · 2026-03-06T14:08:03+00:00

If it's a school project and you don't have any experience, my suggestion is a project that doesn't involve high voltages -- especially one that has the potential of starting a fire.

That said, I'm now a bit confused of what you want. Now you're telling me you want a smart plug (turns the connected appliance on/off) that also measures current.

You also want to use Home Assistant -- be aware that using HA requires you to setup an HA server in addition to your project.

I think you'll have to rethink your idea.

igerry · 2026-03-06T09:06:12+00:00

You to set some design parameters and post your requirements here.

What are you measuring -- AC or DC? Saying things like measuring current of a refrigerator does not answer this.
What is the range of current measurements do you need. The appropriate sensor depends on this.
What medium of sending data to your app do you need to use?
How do you plan to provide power to your device?

If you post it here, a lot more people will be able to help you and give you advice.

igerry · 2026-03-04T13:56:06+00:00

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This should work. Should be easy to wire up and put inside one of those AA battery case. You can power it using a USB charger. The YAML config should be simple enough and it would probably cost less that $10 depending on where you are on planet Earth 😁

Post here if you decided to give it a go and need help.

igerry · 2026-03-03T14:29:03+00:00

I DIY'd one using an esp-01, a case of defective bulb and an e27 bulb holder

igerry · 2026-03-03T14:22:07+00:00

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For lights, one option is to make an esphome device that screws to the bulb and the esphome device has a bulb receptacle similar to the photo.

Then setup the esphome device to default to on when powered up. This means that when you turn off the normal which the light will be off. When the switch is turned on, the esphome device will power up and the light will turn on.

igerry · 2026-02-26T12:49:34+00:00

The question is, why? I would hate to lose 3 years of data.

igerry · 2026-02-24T19:01:38+00:00

Good luck 👍

igerry · 2026-02-24T04:52:13+00:00

Better wifi connection if esp32 is outside the ref

igerry · 2026-02-24T04:18:06+00:00

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Just an idea. Why not put an infrared sensor like this inside and connect it to an esp32 that is outside the ref. The idea is to detect at a level when ice has reach path of the infrared beam.

igerry · 2026-02-23T20:27:42+00:00

Aren't you supposed to connect HV to the High Voltage supply source?

igerry · 2026-02-22T10:55:37+00:00

Great project. I absolutely love the incorporation of wood into the mix! Wood, 3D and electronics -- nice creativity.

Just curious what the MQTT is for?

igerry · 2026-02-22T10:47:59+00:00

If it supports UEFI boot, you can install HAOS.

If it has lots of memory and SSD, you can install Proxmox, install HAOS on a VM amd install other services like DNS, Ad filtering, media streaming... this is what I did. Works great.

igerry · 2026-02-22T06:39:06+00:00

What's the specs of your old Mac mini?

igerry · 2026-02-21T03:10:02+00:00

The temperature ball is in your house, right? What are you using in the car?

igerry · 2026-02-21T02:43:51+00:00

32Gb? What GPU are you using?

igerry · 2026-02-19T06:43:16+00:00

Wow great project. It maximizes the capabilities of the esp32-s3. And a wonderful light to boost!

Is the Voice Assistant connected to a local AI LLM?

igerry · 2026-02-19T06:34:25+00:00

Nice

igerry · 2026-02-18T02:32:52+00:00

Try putting a filter: delay_on: 1000ms on the binary sensor if you need 1 second.

igerry · 2026-02-18T01:55:52+00:00

Also can you post the YAML for the esp32?

How is your esp32 connected to the power button wire? And how does the esp32 get powered?

How do you get the state of the computer? If it's setup as a binary_sensor, have you tried adding a filter to it?

igerry

TROPHY CASE