Configuring a LoRa32 as an AcuRite Bridge

ESPHome
1

Hello. I’m relatively new to ESPHome and Home Assistant. I’m trying to setup a LILYGO T3 LoRa32 V1.6.1 to read data from AcuRite temperature sensors. I’m using the custom component from https://github.com/swoboda1337/acurite-esphome/.

I’m confused about how to setup the remote_receiver block. How do I know which pin assignment to use there? Currently it’s set to GPIO32, but I only have that value set because that’s what’s shown in the sample config from the custom component’s website. As far as I can tell, my LoRa32 doesn’t have a GPIO32 pin.

Also, how do I know which settings to use in the sx127x block (e.g., modulation, bandwidth, etc.)?

Thank you.

substitutions:
  name: acurite-bridge
  board: ttgo-lora32-v21
  spi_clk_pin: GPIO5
  spi_mosi_pin: GPIO27
  spi_miso_pin: GPIO19
  sx127x_cs_pin: GPIO18
  sx127x_rst_pin: GPIO23
  sx127x_dio0_pin: GPIO26
  remote_receiver_pin: GPIO32

esphome:
  name: ${name}

esp32:
  board: ${board}
  framework:
    type: esp-idf

logger:
  level: INFO

api:
  encryption:
    key: "!secret api_encryption_key"

ota:
  - platform: esphome
    password: "!secret otapassword"

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

  ap:
    ssid: ${name}
    password: "!secret wifi_ap_password"

captive_portal:

spi:
  clk_pin: ${spi_clk_pin}
  mosi_pin: ${spi_mosi_pin}
  miso_pin: ${spi_miso_pin}

sx127x:
  cs_pin: ${sx127x_cs_pin}
  rst_pin: ${sx127x_rst_pin}
  dio0_pin: ${sx127x_dio0_pin}
  frequency: 433920000
  modulation: OOK
  rx_start: true
  bandwidth: 50_0kHz
  packet_mode: false
  bitsync: true
  rx_floor: -90

remote_receiver:
  pin: ${remote_receiver_pin}
  dump: all

external_components:
  - source: github://swoboda1337/acurite-esphome

acurite:
2

Hi

For info ESPHome supports none LoRa devices ! If you want to do it with LoRa you’ll need to program the ESP with Arduino for example :wink:

Vincèn

3

To start with, go with your external component example parameters. Gpio32 is named Lora2 on your board. For further information you should contact the author of that component.

4

Not true. ESPHome supports these boards with the “ttgo-lora32-v21” board type.