Add ESPHome Python integration for usage as external component

components/stream_server/__init__.py

@@ -0,0 +1,31 @@
+import esphome.codegen as cg
+import esphome.config_validation as cv
+from esphome.components import uart
+from esphome.const import CONF_ID, CONF_PORT
+
+# ESPHome doesn't know the Stream abstraction yet, so hardcode to use a UART for now.
+
+DEPENDENCIES = ["uart"]
+
+MULTI_CONF = True
+
+StreamServerComponent = cg.global_ns.class_("StreamServerComponent", cg.Component)
+
+CONFIG_SCHEMA = (
+	cv.Schema(
+		{
+			cv.GenerateID(): cv.declare_id(StreamServerComponent),
+			cv.Optional(CONF_PORT): cv.port,
+		}
+	)
+		.extend(cv.COMPONENT_SCHEMA)
+		.extend(uart.UART_DEVICE_SCHEMA)
+)
+
+def to_code(config):
+	var = cg.new_Pvariable(config[CONF_ID])
+	if CONF_PORT in config:
+		cg.add(var.set_port(config[CONF_PORT]))
+
+	yield cg.register_component(var, config)
+	yield uart.register_uart_device(var, config)

stream_server.h → components/stream_server/stream_server.h

@@ -17,6 +17,7 @@
 #pragma once
 
 #include "esphome/core/component.h"
+#include "esphome/components/uart/uart.h"
 
 #include <memory>
 #include <string>
@@ -31,7 +32,9 @@
 
 class StreamServerComponent : public esphome::Component {
 public:
+    StreamServerComponent() = default;
     explicit StreamServerComponent(Stream *stream) : stream_{stream} {}
+    void set_uart_parent(esphome::uart::UARTComponent *parent) { this->stream_ = parent; }
 
     void setup() override;
     void loop() override;