$5 Human Presence Sensor for Smart Home Automation | Home Assistant | DIY Smart Home | EP03

[@chirayildinoj229]

Will the input voltage difference of two components create a problem?

[@ankamanirudh8837]

Hey you didn't make video on how you are accessing esp home from anywhere and how did you bought website?? it's over 2years now

[@Asaqwerty]

Thank you, Your code helped me correct the issues in my setup.

[@ravis1ngh]

Glad it helped. Like and share! 😄

[@Ic3bat]

How did you get the distance and presence detetion to work? I have wired exactly like you showed and used your code but for me in homeassistant the distance and presence are set as unknown. Any ideas?

[@JoshFisher567]

Have you tested or used the LD2450 yet? If so do zones work and can you ignore movement in a specific zone? Thanks!

[@ravis1ngh]

Currently, don’t have access to it but this sensor got me curious. Would definitely like to test it! Thanks!

[@gamaximilian]

Awsome video! Do you have any ideea how to combine the presence sensor with Pir sensor? Looked all over the internet but can’t find schematic. I’m trying to build my own version of “everything presence sensor”

[@ravis1ngh]

Use a Microcontroller and add these sensor with the microcontroller. Accordinly write a program on Esphome and flash it. Based on the data received from these sensors combined, you can create automations, may be more advanced and nuanced automations for human presence detection.

[@tensiondriven]

Can you do a video or perhaps comment on using a LD2450 with only bluetooth? That is, without an ESP32?

[@ravis1ngh]

Sure. I will try to get my hands on LD2450

[@cybcarr]

Dear Ravi! Can i use it somehow to put this 2420 without programming, to light up a led strip when human is presented in the room, and turn it off after 30sec when the room is empty? Thank you

[@cybcarr]

subbed as well. :)

[@ravis1ngh]

Yes, you can but then you need to program it for that if you want it to work standalone. With Home Assistant, it’s way more easier with the help of Automation and scripts!

[@sjude68]

Can I use D1 mini with Ld2420

[@ravis1ngh]

You can use any microcontroller supported by ESPHOME.

[@bogdancatrinoiu2651]

do you think it can be powerd by battery?

[@ravis1ngh]

No. It will drain the battery quickly within a day or so. Why you want to run this with battery?

[@bogdancatrinoiu2651]

@@ravis1ngh because it's hard to pull a wire all the way where I want to install the sensor. I guess it needs to be placed the same way as a motion sensor, in a spot where can see the whole room, right?

[@ravis1ngh]

@bogdancatrinoiu2651 yes, preferably in corner of room.. i think wire can be managed in the corner.

[@ecotts]

Home assistant!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[@donnybrooklads]

can this detect human movement behind a wall or floor?

[@ravis1ngh]

No, use Microwave RCWL0516

[@ankamanirudh8837]

Hey how can I automate? You didn't show up connection setup with bulbs etc..how to do it Please explain

[@ravis1ngh]

I will soon add a sample automation yaml code for reference. Thanks for your comment.

[@ankamanirudh8837]

@@ravis1ngh Also please make a video, how to setup, show up your setups

[@ravis1ngh]

A sample automation YAML code is added in the description

[@makingbyabhisek8469]

Bhai me ye mere Arduino nano me upload kar sakta hoon kya

[@ravis1ngh]

Won’t be of any use bro! Unless you want to use this as a standalone project for example to power Led strip based on distance

[@mrbarathsciencefacts4084]

Can it disguise between human and objects

[@ravis1ngh]

Yes, that’s why it’s called human presence sensor!

[@hmgomez1977]

I tried it but it didn't work.. it says unknown.. also the code you have is different from the one on your video

[@yongli6809]

Presence and Moving Distance displayed as' unknown '

[@ravis1ngh]

There could be several issues from code to connectivity. Share logs please

[@yongli6809]

[17:59:08][W][ld2420:090]: LD2420 Firmware Version v0.0.0 and older are only supported in Simple Mode [17:59:08][E][component:082]: Component ld2420 is marked FAILED

[@ravis1ngh]

@@yongli6809 Did you use the code I shared? If yes, here's additionally what you can do to resolve your LD2420 issue: 1. Update Firmware/ensure your LD2420 is on firmware v1.5.4 or higher to avoid compatibility issues with ESPHome. 2. Use Hardware UART instead of Software UART and a baud rate of 115200. You won't be able to see logs in that case but the sensor should work. I have used hardware UART in my case. 3. Check Power Supply and use external 5V USB power supply if power is insufficient via USB.

[@yongli6809]

@@ravis1ngh Thank you。After inspection, it was found that there was a soldering error on the RX TX pin。

[@ravis1ngh]

@@yongli6809 Cool!

[@donireland6218]

This is NOT a "human present detector". That means the video title is click bait. So I'll be giving it a thumbs down. This detects ANYTHING that moves. If the dog walks past, it's going trigger.

[@ravis1ngh]

You are right. LD2420 is a movement detector sensor for any living being. But the Human Presence sensor can also false trigger if dog walks past! Isn’t it? I also talked about LD2410 which is a human presence sensor.

[@donireland6218]

@ravis1ngh I've been told many times in the past that mmWave will detect ANY animal (human, dog, cat, orangutan etc). So when I saw you indicate that you were using mmWave, I exited the video as it seemed like calling it a Human Detector was click bait. If that is incorrect, then I apologize and I'll give you the benefit of the doubt and remove my thumbs down. If that is the case, I'd like to see some animals of different sizes go by to see what will and will not trigger it (maybe with the sensor at varying heights).