Hello, I'm using the espHome to communicate with a device using the serial port, specially a STM32 device. I'm able to listen the RX/TX with screen:

socat -v -d -d pty,raw,echo=0 tcp:192.168.2.105:1234 then screen /dev/ttys005 115200 And it seems to work very nice here, I`m able read all the msgs, except sometimes it seems to lag a bit.

Now I'm tryng to use it with stm32flash: sudo stm32flash -b 115200 /dev/ttys005

socat debug: https://pastebin.com/baxDTWL2

Could someone give a tip if I can improve and make it work for this purpose?

YAML settings:

external_components:
  - source: github://oxan/esphome-stream-server

logger:
  baud_rate: 0
  
uart:
  id: uart_bus
  tx_pin: GPIO1
  rx_pin: GPIO3
  baud_rate: 115200
  rx_buffer_size: 4096
  
stream_server:
  uart_id: uart_bus
  port: 1234

custom_component:
  - lambda: |-
      auto stream_server = new StreamServerComponent(id(uart_bus));
      return {stream_server};

Serial connections are very unreliable when using this component with any ESPHome Version greater than 2021.9. By unreliable I mean the connection resets every few hours.

First of all thanks for writing this component. Some years ago I found an older version and I've been putting it to great use since.

While reading through the code, I couldn't help but notice the comments of "ESPHome doesn't know the Stream abstraction yet, so hardcode to use a UART for now."

Somewhere around the same time, I stumbled upon this from the Midea component:

https://www.esphome.io/api/appliance__base_8h_source.html

It implements a UARTStream class that takes the UARTcomponent and wraps the Stream class around it. Although it wouldn't change the functionality, it might be more in line with what you envisioned when you wrote this component.

Below minimal configuration file fails validation and build on my ESPHome instance:.

INFO Reading configuration /config/esphome/test123.yaml...
Failed config

stream_server: [source /config/esphome/test123.yaml:14]
  
  Component not found: stream_server.

test123.yaml:

---
substitutions:
  devicename: test123
  upper_devicename: "TEST123"

esphome:
  name: ${devicename}
  platform: ESP8266
  board: esp01_1m

external_components:
  - source: github://oxan/esphome-stream-server

stream_server:

I am using the following installation:

System Health

version | core-2022.2.9 -- | -- installation_type | Home Assistant OS dev | false hassio | true docker | true user | root virtualenv | false python_version | 3.9.7 os_name | Linux os_version | 5.10.98 arch | x86_64 timezone | Europe/Amsterdam