Control a led with Home Assistant? | Home Assistant | Page 1

autumn robin Dec 7, 2024, 10:26 AM

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I thought it would be cool to control a LED diode with HA. First, I connected it to my Arduino. I loaded a script called Firmata. Intro the config file i wrote this:

firmata:
  - serial_port: /dev/serial/by-id/usb-Arduino__www.arduino.cc__0043_55736303739351811011-if00
    lights:
      - name: my_dimmable_light
        pin_mode: PWM
        pin: 13
```but I got an error:```
Logger: homeassistant.components.firmata.config_flow
Source: components/firmata/config_flow.py:41
integration: Firmata (documentation, issues)
First occurred: 11:11:57 AM (1 occurrences)
Last logged: 11:11:57 AM

Error connecting to PyMata board serial-/dev/serial/by-id/usb-Arduino__www.arduino.cc__0043_55736303739351811011-if00: Invalid Arduino ID reply length```


Things to mention:
- HA is running on Raspberry Pi 3
- Arduino UNO
- Led on pin 13
- I'm new to home assistant

molten oracle Dec 7, 2024, 10:36 AM

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Do you have firmata installed on your arduino?

autumn robin Dec 7, 2024, 10:38 AM

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molten oracle Do you have firmata installed on your arduino?

how do I know?

molten oracle Dec 7, 2024, 10:39 AM

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It's something you've gotta load onto it, so if you don't know the answer is probably not ^^

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You can also expose the pi's i/o ports for stuff like that too BTW, don't need a separate board

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https://www.google.com/amp/s/www.instructables.com/Arduino-Installing-Standard-Firmata/%3Famp_page=true

Instructables

Arduino: Installing Standard Firmata

Arduino: Installing Standard Firmata: Arduino is an open-source electronics platform based on easy-to-use hardware and software. You typically use an Arduino microcontroller board in one of two ways:

You can plug the board into a desktop computer and upload a computer program (or scr…

autumn robin Dec 7, 2024, 10:44 AM

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molten oracle It's something you've gotta load onto it, so if you don't know the answer is pro...

i used an example called StandartFirmata

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i donwloaded it:

molten oracle Dec 7, 2024, 10:46 AM

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And it's loaded on the board, not just installed in the ide?

autumn robin Dec 7, 2024, 10:50 AM

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molten oracle And it's loaded on the board, not just installed in the ide?

in the code, i guess its loaded

#include <Firmata.h>

molten oracle Dec 7, 2024, 10:50 AM

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Hmmm weird

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I'll have to dig out one of my duino boards and see what's going on, been a while since I used firmata

autumn robin Dec 7, 2024, 10:56 AM

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molten oracle You can also expose the pi's i/o ports for stuff like that too BTW, don't need a...

i'm aware of that. in the future, i want to control it somewhere else than the raspberry is. to be presice, i want to control my led strip in my room, while the raspberry is in other room

molten oracle Dec 7, 2024, 10:56 AM

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Fair enough

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That's the sort of thing I use esphome for tbh

autumn robin Dec 7, 2024, 10:57 AM

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with the wifi module?

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I also thought of that, but i wanted to try it with my arduino board, just becuse i don't have ESP

autumn robin Dec 7, 2024, 11:21 AM

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molten oracle I'll have to dig out one of my duino boards and see what's going on, been a whil...

any updates?

molten oracle Dec 7, 2024, 11:22 AM

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Nothing interesting, I followed the steps in that thing I linked and it blinks an led just fine

autumn robin Dec 7, 2024, 11:36 AM

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molten oracle Nothing interesting, I followed the steps in that thing I linked and it blinks a...

thease steps?

molten oracle Dec 7, 2024, 11:37 AM

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molten oracle https://www.google.com/amp/s/www.instructables.com/Arduino-Installing-Standard-F...

These ones

autumn robin Dec 7, 2024, 11:38 AM

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molten oracle Nothing interesting, I followed the steps in that thing I linked and it blinks a...

linked with home assistant?

molten oracle Dec 7, 2024, 11:39 AM

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Nope, just the pc - but the firmata integration just uses the same commands so if it works on one it will work on the other

autumn robin Dec 7, 2024, 12:14 PM

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molten oracle Nothing interesting, I followed the steps in that thing I linked and it blinks a...

where did you find the testing program?

molten oracle Dec 7, 2024, 12:15 PM

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https://pypi.org/project/PyMata/

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I just wrote something in python using this

autumn robin Dec 7, 2024, 12:16 PM

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i found this, and blinks too

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so there's gotta be problem with HA

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Note: I have here output

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no PWM

molten oracle Dec 7, 2024, 12:37 PM

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OK, so I guess the things to check are a) the usb port is correct and b) home assistant has access to that port (if it's in a vm or container)

autumn robin Dec 7, 2024, 3:41 PM

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molten oracle OK, so I guess the things to check are a) the usb port is correct and b) home as...

a: when i used the 1-1.2 it said something like no tty
b: how can I check that?

molten oracle Dec 7, 2024, 3:42 PM

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If you're seeing it in home assistant it has access

autumn robin Dec 7, 2024, 3:43 PM

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molten oracle If you're seeing it in home assistant it has access

so witch one to use?

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It is recommended to use the by-id reference (instead of numerical like /dev/ttyACM0 or /dev/ttyUSB0) since these will never change after a reboot

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the first one is like this:

BUSNUM: '001'
DEVNAME: /dev/bus/usb/001/011
DEVNUM: '011'
DEVPATH: /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2
DEVTYPE: usb_device
DRIVER: usb
ID_BUS: usb
ID_MODEL: '0043'
ID_MODEL_ENC: '0043'
ID_MODEL_ID: '0043'
ID_PATH: platform-3f980000.usb-usb-0:1.2
ID_PATH_TAG: platform-3f980000_usb-usb-0_1_2
ID_PATH_WITH_USB_REVISION: platform-3f980000.usb-usbv2-0:1.2
ID_REVISION: '0001'
ID_SERIAL: Arduino__www.arduino.cc__0043_55736303739351811011
ID_SERIAL_SHORT: '55736303739351811011'
ID_USB_INTERFACES: ':020201:0a0000:'
ID_USB_MODEL: '0043'
ID_USB_MODEL_ENC: '0043'
ID_USB_MODEL_ID: '0043'
ID_USB_REVISION: '0001'
ID_USB_SERIAL: Arduino__www.arduino.cc__0043_55736303739351811011
ID_USB_SERIAL_SHORT: '55736303739351811011'
ID_USB_VENDOR: Arduino__www.arduino.cc_
ID_USB_VENDOR_ENC: Arduino\x20\x28www.arduino.cc\x29
ID_USB_VENDOR_ID: '2341'
ID_VENDOR: Arduino__www.arduino.cc_
ID_VENDOR_ENC: Arduino\x20\x28www.arduino.cc\x29
ID_VENDOR_ID: '2341'
MAJOR: '189'
MINOR: '10'
PRODUCT: 2341/43/1
SUBSYSTEM: usb
TYPE: 2/0/0
USEC_INITIALIZED: '7977636808'

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and the second:```
DEVLINKS: >-
/dev/serial/by-id/usb-Arduino__www.arduino.cc__0043_55736303739351811011-if00
/dev/serial/by-path/platform-3f980000.usb-usb-0:1.2:1.0
/dev/serial/by-path/platform-3f980000.usb-usbv2-0:1.2:1.0
DEVNAME: /dev/ttyACM0
DEVPATH: /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2:1.0/tty/ttyACM0
ID_BUS: usb
ID_MODEL: '0043'
ID_MODEL_ENC: '0043'
ID_MODEL_ID: '0043'
ID_PATH: platform-3f980000.usb-usb-0:1.2:1.0
ID_PATH_TAG: platform-3f980000_usb-usb-0_1_2_1_0
ID_PATH_WITH_USB_REVISION: platform-3f980000.usb-usbv2-0:1.2:1.0
ID_REVISION: '0001'
ID_SERIAL: Arduino__www.arduino.cc__0043_55736303739351811011
ID_SERIAL_SHORT: '55736303739351811011'
ID_TYPE: generic
ID_USB_DRIVER: cdc_acm
ID_USB_INTERFACES: ':020201:0a0000:'
ID_USB_INTERFACE_NUM: '00'
ID_USB_MODEL: '0043'
ID_USB_MODEL_ENC: '0043'
ID_USB_MODEL_ID: '0043'
ID_USB_REVISION: '0001'
ID_USB_SERIAL: Arduino__www.arduino.cc__0043_55736303739351811011
ID_USB_SERIAL_SHORT: '55736303739351811011'
ID_USB_TYPE: generic
ID_USB_VENDOR: Arduino__www.arduino.cc_
ID_USB_VENDOR_ENC: Arduino\x20\x28www.arduino.cc\x29
ID_USB_VENDOR_ID: '2341'
ID_VENDOR: Arduino__www.arduino.cc_
ID_VENDOR_ENC: Arduino\x20\x28www.arduino.cc\x29
ID_VENDOR_ID: '2341'
MAJOR: '166'
MINOR: '0'
SUBSYSTEM: tty
TAGS: ':systemd:'
USEC_INITIALIZED: '7977653466'

molten oracle Dec 7, 2024, 3:54 PM

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The latter

autumn robin Dec 7, 2024, 3:57 PM

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molten oracle The latter

but witch number from it?

molten oracle Dec 7, 2024, 4:00 PM

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by-id

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You didn't set the baud rate

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serial_baud_rate: 57600

autumn robin Dec 7, 2024, 4:03 PM

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molten oracle serial_baud_rate: 57600

Logger: homeassistant.components.firmata.config_flow
Source: components/firmata/config_flow.py:49
integration: Firmata (documentation, issues)
First occurred: 5:03:14 PM (1 occurrences)
Last logged: 5:03:14 PM

Error connecting to serial port for PyMata board serial-57600: [Errno 2] could not open port 57600: [Errno 2] No such file or directory: '57600'

molten oracle Dec 7, 2024, 4:05 PM

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No... Not the serial port

autumn robin Dec 7, 2024, 4:05 PM

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i get it

autumn robin Dec 7, 2024, 4:06 PM

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molten oracle No... Not the serial port

so what port should I use?

molten oracle Dec 7, 2024, 4:06 PM

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What you originally had

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It was fine

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I think you just didn't set the baud rate so it couldn't communicate

autumn robin Dec 7, 2024, 4:07 PM

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molten oracle What you originally had

this? /dev/serial/by-id/usb-Arduino__www.arduino.cc__0043_55736303739351811011-if00

molten oracle Dec 7, 2024, 4:07 PM

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Yes

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Though with the underscores

autumn robin Dec 7, 2024, 4:11 PM

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yep, i forgot to format it

autumn robin Dec 7, 2024, 4:22 PM

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molten oracle What you originally had

cool, it finally shows up in the HA

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but the led is not working

molten oracle Dec 7, 2024, 4:26 PM

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I dunno man, feels like an arduino issue at that point

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Check your pin is correct, check out can be operated as pwm

autumn robin Dec 7, 2024, 4:31 PM

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molten oracle Check your pin is correct, check out can be operated as pwm

it needed to be a switch. it works! now how to make it without connecting it to the system?

molten oracle Dec 7, 2024, 4:32 PM

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Wirelessly?

autumn robin Dec 7, 2024, 4:33 PM

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well, not exactly wirelessly, i guess that if i don't have a wifi module, or anything like that, i have to do it with my PC or something

#Control a led with Home Assistant?