4af0f1b248
Quick end-to-end data-flow proof using only what's on the ESP32-C6- DevKitC-1 itself (no sensors on the bare devkit -- confirmed via research: BOOT button, WS2812 LED, no external sensors): - drivers::chip_temperature_* wraps ESP-IDF's built-in temperature_sensor driver (SoC die temperature). - drivers::rgb_led_* wraps the onboard WS2812 (GPIO8) via the espressif/led_strip managed component (another external registry dependency, like mdns/mqtt). - profiles::ChipTemperatureSensor is the first real implementation of the Sensor interface designed earlier, converting the driver's float reading to the fixed-point convention once at the boundary. - transport/mqtt.cpp publishes chip temperature as an HA "temperature" sensor every 30s, and exposes the LED as an HA "light" entity (rgb_command_topic) -- the first use of MQTT subscribe in this project, not just publish. Added a ChipTemperature SensorChannel (distinct from AmbientTemperature -- different meaning/range) to sensor.h. Verified live: both the chip temperature reading and LED color control work from Home Assistant against the real device. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
48 lines
1.2 KiB
C++
48 lines
1.2 KiB
C++
#include "rgb_led.h"
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#include "esp_log.h"
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#include "led_strip.h"
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namespace kvida::drivers {
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namespace {
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constexpr const char *TAG = "rgb_led";
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constexpr int kGpio = 8; // WS2812 on ESP32-C6-DevKitC-1
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led_strip_handle_t g_strip = nullptr;
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} // namespace
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void rgb_led_init()
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{
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if (g_strip) {
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return;
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}
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led_strip_config_t strip_config = {};
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strip_config.strip_gpio_num = kGpio;
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strip_config.max_leds = 1;
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strip_config.led_model = LED_MODEL_WS2812;
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strip_config.color_component_format = LED_STRIP_COLOR_COMPONENT_FMT_GRB;
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led_strip_rmt_config_t rmt_config = {};
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rmt_config.resolution_hz = 10 * 1000 * 1000;
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esp_err_t err = led_strip_new_rmt_device(&strip_config, &rmt_config, &g_strip);
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if (err != ESP_OK) {
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ESP_LOGE(TAG, "led_strip_new_rmt_device failed: %s", esp_err_to_name(err));
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return;
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}
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led_strip_clear(g_strip);
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}
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void rgb_led_set_color(uint8_t red, uint8_t green, uint8_t blue)
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{
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if (!g_strip) {
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ESP_LOGE(TAG, "rgb_led_set_color() called before rgb_led_init()");
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return;
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}
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led_strip_set_pixel(g_strip, 0, red, green, blue);
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led_strip_refresh(g_strip);
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}
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} // namespace kvida::drivers
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