LilyGO TTGO T3 LoRa32 433MHz V1.6.1 ESP32 as 433RF reciever

[thermiek]

hello ,

i want to create a yaml file that show rf433 messages that it recieves into the log.
the esp i use is : LilyGO TTGO T3 LoRa32 433MHz V1.6.1 ESP32

it has all hardware onboard , because when i flash it with
openmqttgateway
then i recieve many messages from the area where i live.

I use GPIO26 as input , according to this schematic : pcb layout

and my esphome code is the default yaml

remote_receiver:
  pin: GPIO26
  dump: all
  # Settings to optimize recognition of RF devices
  tolerance: 50%
  filter: 250us
  idle: 4ms
  buffer_size: 2kb

what can i do better ?
do i need to setup miso and mosi etc ?

thx in advance

[123 (Taras)]

@thermiek

then i recieve many messages from the area where i live.

If you’re interested, it’s possible to include only the 433MHz devices you want and exclude all others. I helped someone else with the same issue here.

Add option for MQTT Auto Discovery subject to confirmation

MQTT Discovery only discovers what is submitted for discovery. Your ESP device finds all 433MHz devices in your neighborhood and submits them to Home Assistant via MQTT Discovery. It isn’t MQTT Discovery’s responsibility to filter out discovery requests. The responsibility lies with whatever makes the request. If you have no control over what the ESP device submits to Home Assistant via MQTT Discovery, then that’s a shortcoming with its functionality (not with MQTT Discovery). Here’s one …

It can be done manually or with an automation.

[thermiek]

and how to create a esphome-yaml , so i can use my ttgo for other things , such as binary sensors , oled lcd etc??

when i use other firmware i cant control my free gpio and lcd to my custom items

[123 (Taras)]

@thermiek

when i use other firmware i cant control my free gpio and lcd to my custom items

You’re right.

I didn’t know that you wanted to do other things with the LilyGO TTGO T3 LoRa32 433MHz V1.6.1 ESP32. Your first post gave me the impression you only wanted to use it for receiving data from 433MHz devices because you had tried it with openmqttgateway firmware. However, I overlooked to notice that you posted this in the ESPHome category so you intend to use it with firmware customized for your specific requirements.

Sorry for the misunderstanding. Hopefully someone else will help you soon with your ESPHome question.

[thermiek]

no problem , thanks anyway
and also openmqttgateway was a test so i know that my hardware works fine…
now the software

[Didgeridrew]

I don’t think the sx12XX chips are supported yet in core ESPHome… it looks like there is a custom component.

[thermiek]

thank you !!

[Kuechenfenster]

@thermiek

LilyGO TTGO T3 LoRa32 433MHz V1.6.1 ESP32

Hi
can this device only be used as a receiver? or also as transmitter?!

[Didgeridrew]

The custom component for ESPHome linked above supports both receiving and transmitting… OpenMQTTGateway only supports receiving on this device.

[shaikedem]

hi
how do i install this custom component? I saw there only 2 files

[Didgeridrew]

External Components

[shaikedem]

thank you, will try that

[thermiek]

external_components:
  - source:
      type: git
      url: https://github.com/swoboda1337/sx127x-esphome
      ref: main
    refresh: 1d

spi:
  clk_pin: GPIO5
  mosi_pin: GPIO27
  miso_pin: GPIO19

sx127x:
  nss_pin: GPIO18
  rst_pin: GPIO23
  frequency: 433920000
  modulation: OOK
  rx_floor: -90
  rx_bandwidth: 50_0kHz

remote_receiver:
  pin: GPIO32
  #filter: 255us
  #idle: 2000us
  #buffer_size: 100000b
  memory_blocks: 3 #8
  dump: 
    - rc_switch
    - raw

[shaikedem]

thanks, i was able to use this integration
however, this receiver gets bombarded with all RF433 in my neighborhood…
Not sure how i can filter what i want with this configuration
I eventually reverted to using OpenMQTT Integration, where I can create sensor based on topics, etc