Init

main/drivers/ws2812.c

@@ -0,0 +1,50 @@
+#include "ws2812.h"
+#include "esp_log_level.h"
+#include "led_strip.h"
+#include "pins.h"
+#include <stdint.h>
+#include <stdio.h>
+
+led_strip_handle_t led_strip;
+void ws2812_init() {
+  /// LED strip common configuration
+  led_strip_config_t strip_config = {
+      .strip_gpio_num =
+          WS2812_PIN, // The GPIO that connected to the LED strip's data line
+      .max_leds = 1,  // The number of LEDs in the strip,
+      .led_model =
+          LED_MODEL_WS2812, // LED strip model, it determines the bit timing
+      .color_component_format =
+          LED_STRIP_COLOR_COMPONENT_FMT_GRB, // The color component format is
+                                             // G-R-B
+      .flags = {
+          .invert_out = false, // don't invert the output signal
+      }};
+
+  /// RMT backend specific configuration
+  led_strip_rmt_config_t rmt_config = {
+      .clk_src = RMT_CLK_SRC_DEFAULT,    // different clock source can lead to
+                                         // different power consumption
+      .resolution_hz = 10 * 1000 * 1000, // RMT counter clock frequency: 10MHz
+      .mem_block_symbols =
+          64, // the memory size of each RMT channel, in words (4 bytes)
+      .flags = {
+          .with_dma =
+              false, // DMA feature is available on chips like ESP32-S3/P4
+      }};
+
+  /// Create the LED strip object
+  ESP_ERROR_CHECK(
+      led_strip_new_rmt_device(&strip_config, &rmt_config, &led_strip));
+
+  if (!led_strip) {
+    printf("LED strip init failed!\n");
+  } else {
+    printf("LED string init done\n");
+  }
+}
+
+void ws2812_send_rgb(uint8_t r, uint8_t g, uint8_t b) {
+  ESP_ERROR_CHECK(led_strip_set_pixel(led_strip, 0, r, g, b));
+  ESP_ERROR_CHECK(led_strip_refresh(led_strip));
+}