wordclock/code/main/main.cpp

#include "freertos/FreeRTOS.h"
#include "freertos/task.h"

#include "esp_event.h"
#include "esp_log.h"
#include "esp_sntp.h"
#include "esp_wifi.h"
#include "time.h"

#include "nvs_flash.h"

#include "driver/gpio.h"
#include "driver/rmt_tx.h"
#include "driver/uart_select.h"

#include "inc/gpio.h"
#include "inc/led_strip_encoder.h"
#include "inc/ledmatrix.h"
#include "inc/logger.h"
#include "inc/wifi.h"

static const uart_port_t uartPort = UART_NUM_0;
static TaskHandle_t devTaskHandle = NULL;
static void devTask(void* parameters);
static GPIO gpio0(4, GPIO_DIRECTION_OUTPUT);
static GPIO gpio1(18, GPIO_DIRECTION_OUTPUT);
static time_t currentTime;

static rmt_channel_handle_t led_chan = NULL;
static rmt_transmit_config_t tx_config;
static rmt_encoder_handle_t led_encoder = NULL;

#define RMT_LED_STRIP_RESOLUTION_HZ 10000000 // 10MHz resolution, 1 tick = 0.1us (led strip needs a high resolution)
#define RMT_LED_STRIP_GPIO_NUM      8

extern "C" void app_main(void)
{
   esp_log_level_set("*", ESP_LOG_WARN);

   esp_err_t ret = nvs_flash_init();

   if(ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND)
   {
      ESP_ERROR_CHECK(nvs_flash_erase());
      ret = nvs_flash_init();
   }

   //--------------------------------------------
   // UART
   //
   const uart_config_t uartConfig =
   {
      .baud_rate = 115200,
      .data_bits = UART_DATA_8_BITS,
      .parity = UART_PARITY_DISABLE,
      .stop_bits = UART_STOP_BITS_1,
      .flow_ctrl = UART_HW_FLOWCTRL_DISABLE,
      .rx_flow_ctrl_thresh = 0,
      .source_clk = UART_SCLK_DEFAULT
   };
   ESP_ERROR_CHECK(uart_param_config(uartPort, &uartConfig));
   ESP_ERROR_CHECK(uart_set_pin(uartPort, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE));
   ESP_ERROR_CHECK(uart_driver_install(uartPort, 1024, 1024, 0, NULL, 0));

   //--------------------------------------------
   // LOGGER
   //
   Logger logger(10, uartPort);

   LOGGER_DEBUG("Let's start the WORDCLOCK");


   //--------------------------------------------
   // RMT Channel
   //
   LOGGER_INFO("Create RMT TX channel");
   rmt_tx_channel_config_t tx_chan_config;
   memset(&tx_chan_config, 0, sizeof(tx_chan_config));

   tx_chan_config.clk_src = RMT_CLK_SRC_DEFAULT; // select source clock
   tx_chan_config.gpio_num = RMT_LED_STRIP_GPIO_NUM;
   tx_chan_config.mem_block_symbols = 64; // increase the block size can make the LED less flickering
   tx_chan_config.resolution_hz = RMT_LED_STRIP_RESOLUTION_HZ;
   tx_chan_config.trans_queue_depth = 4;

   ESP_ERROR_CHECK(rmt_new_tx_channel(&tx_chan_config, &led_chan));

   LOGGER_INFO("Install led strip encoder");
   led_strip_encoder_config_t encoder_config;
   memset(&encoder_config, 0, sizeof(encoder_config));
   encoder_config.resolution = RMT_LED_STRIP_RESOLUTION_HZ;

   ESP_ERROR_CHECK(rmt_new_led_strip_encoder(&encoder_config, &led_encoder));

   LOGGER_INFO("Enable RMT TX channel");
   ESP_ERROR_CHECK(rmt_enable(led_chan));

   memset(&tx_config, 0, sizeof(tx_config));
   tx_config.loop_count = 0;


   //--------------------------------------------
   // LED Matrix
   //
   LEDMatrix_Parameters_t ledmatrix_parameters;
   ledmatrix_parameters.columOrientation  = LEDMATRIX_ORIENTATION_COLUM_DOWN_UP;
   ledmatrix_parameters.height            = 10;
   ledmatrix_parameters.matrixOrientation = LEDMATRIX_ORIENTATION_COLUM;
   ledmatrix_parameters.rmtChannel        = &led_chan;
   ledmatrix_parameters.rmtConfig         = &tx_config;
   ledmatrix_parameters.rmtEncoder        = &led_encoder;
   ledmatrix_parameters.rowOrientation    = LEDMATRIX_ORIENTATION_ROW_LEFT_RIGHT;
   ledmatrix_parameters.width             = 11;
   LEDMatrix LEDMatrix(&ledmatrix_parameters);


   // Create the development task
   if(xTaskCreate(devTask, "DevTask", 2048, NULL, 3, &devTaskHandle) != pdPASS)
   {
      LOGGER_ERROR("Task not created");
   }

   Wifi wifi;
   wifi.start_client();

   // Start NTP
   setenv("TZ", "CET-1CEST-2,M3.5.0/02:00:00,M10.5.0/03:00:00", 1);
   tzset();
   sntp_setoperatingmode(SNTP_OPMODE_POLL);
   sntp_setservername(0, "pool.ntp.org");
   sntp_init();


   unsigned int row = 0;
   unsigned int colum = 0;

    while (true)
    {

//       struct tm tm;
//       time(&currentTime);
//       localtime_r(&currentTime, &tm);
//
//       LOGGER_INFO("%lld\n\r", currentTime);
//       LOGGER_INFO("%02i:%02i:%02i\n\r", tm.tm_hour, tm.tm_min, tm.tm_sec);
//
//       vTaskDelay(300);


       LOGGER_DEBUG("Enable pixel (%i:%i)", row, colum);
       LEDMatrix.setPixelValue(row, colum, true);
       vTaskDelay(100);
       LEDMatrix.setPixelValue(row, colum, false);
       if (row<10)
       {
          row++;
       }
       else
       {
          row = 0;
          if(colum < 2)
          {
             colum++;
          }
          else
          {
             colum = 0;
          }
       }
    }
}



static void devTask(void* parameters)
{
   uint32_t counter = 0;

   printf("DevTask created");
   while (true)
   {
      (void)gpio0.SetOutput((GPIO_Value_t)(counter % 2));
      (void)gpio1.SetOutput((GPIO_Value_t)(counter % 7));
      counter++;

      vTaskDelay(100);
   }
}