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2e8aa31cbf060fc00f642714650111a0d70711dd
wordclock/code/main/main.cpp
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Matthias Mitscherlich 2e8aa31cbf Added I2C and BMP280 
i2c already running and functional, bmp280 code is still in the main and needs re-organisation
Temperature readout works, pressure is not required at this stage
2023-02-06 16:21:56 +01:00

384 lines
12 KiB
C++
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// --------------------------------------------------------------------------------------------------------------------
/// \file main
/// \brief Description
// --------------------------------------------------------------------------------------------------------------------
//
// vbchaos software design
//
// --------------------------------------------------------------------------------------------------------------------
/// $Revision: $
/// $Author: $
/// $Date: $
// (c) 2023 vbchaos
// --------------------------------------------------------------------------------------------------------------------
// --------------------------------------------------------------------------------------------------------------------
// Include files
// --------------------------------------------------------------------------------------------------------------------
#include "string.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_event.h"
#include "esp_log.h"
#include "esp_wifi.h"
#include "nvs_flash.h"
#include "driver/gpio.h"
#include "driver/rmt_tx.h"
#include "driver/uart_select.h"
#include "driver/gptimer.h"
#include "inc/bmp280.h"
#include "inc/gpio.h"
#include "inc/i2c.h"
#include "inc/led_strip_encoder.h"
#include "inc/ledmatrix.h"
#include "inc/logger.h"
#include "inc/wifi.h"
#include "clock.h"
#include "wordmap.h"
// --------------------------------------------------------------------------------------------------------------------
// Constant and macro definitions
// --------------------------------------------------------------------------------------------------------------------
#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 0
// --------------------------------------------------------------------------------------------------------------------
// Type definitions
// --------------------------------------------------------------------------------------------------------------------
// --------------------------------------------------------------------------------------------------------------------
// File-scope variables
// --------------------------------------------------------------------------------------------------------------------
static const uart_port_t uartPort = UART_NUM_0;
static TaskHandle_t devTaskHandle = NULL;
static TaskHandle_t colourMapTaskHandle = NULL;
// GPIOs
static GPIO led_rgb_red(3, GPIO_DIRECTION_OUTPUT);
static GPIO led_rgb_green(4, GPIO_DIRECTION_OUTPUT);
static GPIO led_rgb_blue(5, GPIO_DIRECTION_OUTPUT);
static GPIO led_orange(18, GPIO_DIRECTION_OUTPUT);
// -------------------------------------------------------
// LED Matrix components
static rmt_channel_handle_t led_chan = NULL;
static rmt_transmit_config_t tx_config;
static rmt_encoder_handle_t led_encoder = NULL;
static LEDMatrix_Parameters_t ledmatrix_parameters =
{
LEDMATRIX_ORIENTATION_ROW_LEFT_RIGHT,
LEDMATRIX_ORIENTATION_COLUM_DOWN_UP,
LEDMATRIX_ORIENTATION_ROW,
11,
10,
&led_chan,
&led_encoder,
&tx_config
};
static LEDMatrix matrix(&ledmatrix_parameters);
static Wordmap map(&matrix);
static gptimer_handle_t matrixRefreshTimer = NULL;
// --------------------------------------------------------------------------------------------------------------------
// Function declarations
// --------------------------------------------------------------------------------------------------------------------
// Simple countdown on display
static void countdown(int delay);
// Timer Callback for the LEDMatrix refresh
static bool timerCallback(gptimer_handle_t timer, const gptimer_alarm_event_data_t *edata, void *user_data);
static void devTask(void* parameters);
static void colourMapTask(void* parameters);
static int bmp280_compensate_T_int32(int adc_T);
// --------------------------------------------------------------------------------------------------------------------
// Function definitions
// --------------------------------------------------------------------------------------------------------------------
int t_fine;
uint16_t dig_T1 = 0x6AA3;
int16_t dig_T2 = 0x6555;
int16_t dig_T3 = 0x0032;
int bmp280_compensate_T_int32(int adc_T)
{
int var1, var2, T;
var1 = ((((adc_T>>3) - ((int)dig_T1<<1))) * ((int)dig_T2)) >> 11;
var2 = (((((adc_T>>4) - ((int)dig_T1)) * ((adc_T>>4) - ((int)dig_T1))) >> 12) * ((int)dig_T3)) >> 14;
t_fine = var1 + var2;
T = (t_fine * 5 + 128) >> 8;
return T;
}
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_PRINT("\n\r-----------------------------------------------------------------------\n\r");
LOGGER_PRINT("System Start\n\r");
LOGGER_PRINT("\n\r");
LOGGER_PRINT("WordClock\n\r");
LOGGER_PRINT("Release: %f\n\r", RELEASE);
LOGGER_PRINT("Compiled on %d %d\n\r\n\r\n\r", __TIME__, __DATE__);
//--------------------------------------------
// 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;
//--------------------------------------------
// I2C
//
// SourceClock: GPIO 8
// SourceData: GPIO 9
I2C i2c0(8, 9);
uint8_t data[6];
// Read BME280 ID register
i2c0.read_register(0x76, 0xD0, data, 1);
LOGGER_DEBUG("BMP280 ID: %02X", data[0]);
// Read compensation values
i2c0.read_register(0x76, 0x88, data, 6);
// Set the oversampling to x1
uint8_t writeData = 0x27;
i2c0.write_register(0x76, 0xF4, &writeData, 1);
//--------------------------------------------
// LED Matrix
//
matrix.setGlobalColour(0x10, 0, 0x04);
// matrix.setGlobalColour(0x80, 0, 0x40);
//--------------------------------------------
// GP Timer for automatic matrix re-draw trigger
//
gptimer_config_t timer_config = { };
gptimer_event_callbacks_t cbs = { };
gptimer_alarm_config_t alarm_config = { };
timer_config.clk_src = GPTIMER_CLK_SRC_DEFAULT;
timer_config.direction = GPTIMER_COUNT_UP;
timer_config.resolution_hz = 1000000; // 1 MHz
cbs.on_alarm = timerCallback;
alarm_config.reload_count = 0;
alarm_config.alarm_count = timer_config.resolution_hz / 60;
alarm_config.flags.auto_reload_on_alarm = true;
ESP_ERROR_CHECK(gptimer_new_timer(&timer_config, &matrixRefreshTimer));
ESP_ERROR_CHECK(gptimer_register_event_callbacks(matrixRefreshTimer, &cbs, NULL));
ESP_ERROR_CHECK(gptimer_enable(matrixRefreshTimer));
ESP_ERROR_CHECK(gptimer_set_alarm_action(matrixRefreshTimer, &alarm_config));
ESP_ERROR_CHECK(gptimer_start(matrixRefreshTimer));
// Create the development task
if(xTaskCreate(devTask, "DevTask", 2048, NULL, 3, &devTaskHandle) != pdPASS)
{
LOGGER_ERROR("Task not created");
}
// Create the colour Map task
if(xTaskCreate(colourMapTask, "ColourTask", 2048, NULL, 3, &colourMapTaskHandle) != pdPASS)
{
LOGGER_ERROR("Task not created");
}
Wifi wifi;
wifi.start_client();
Clock clock(Clock::mode::TEN_BEFORE_HALF);
countdown(200);
list<string> wordlist;
while (true)
{
clock.generateWordlist(&wordlist);
matrix.clear();
std::list<string>::iterator it;
for(it = wordlist.begin(); it != wordlist.end(); it++)
{
map.setWord(Wordmap::Language_t::NL, *it, true);
}
// Add a seconds indicator
matrix.setPixelValue(10, 9, clock.getTime() % 2);
i2c0.read_register(0x76, 0xF7, data, 3);
LOGGER_DEBUG("BMP280 pressure: %02X %02X %02X", data[0], data[1], data[2]);
i2c0.read_register(0x76, 0xFA, data, 3);
int32_t value = 0;
value |= data[0] << 12;
value |= data[1] << 4;
value |= data[2] >> 4;
int valueComp = bmp280_compensate_T_int32(value);
LOGGER_DEBUG("BMP280 temperature: %02X %02X %02X -> %d", data[0], data[1], data[2], valueComp);
// Update the clock every second (1000 ms)
vTaskDelay(1000);
}
}
static void devTask(void* parameters)
{
uint32_t counter = 0;
printf("DevTask created");
while (true)
{
(void)led_orange.SetOutput((GPIO_Value_t)(counter % 2));
counter++;
vTaskDelay(500);
}
}
static void colourMapTask(void* parameters)
{
uint8_t red = 0x10;
uint8_t green = 0;
uint8_t blue = 0x04;
uint32_t counter = 0;
while (true)
{
matrix.setGlobalColour(red, green, blue);
// red = counter & 0xFF;
// green = (counter >> 8) & 0xFF;
// blue = (counter >> 16) & 0xFF;
// counter++;
vTaskDelay(30);
}
}
static void countdown(int delay)
{
map.setWord(Wordmap::Language_t::NL, "ten", true);
vTaskDelay(delay);
map.setWord(Wordmap::Language_t::NL, "ten", false);
map.setWord(Wordmap::Language_t::NL, "nine", true);
vTaskDelay(delay);
map.setWord(Wordmap::Language_t::NL, "nine", false);
map.setWord(Wordmap::Language_t::NL, "eight", true);
vTaskDelay(delay);
map.setWord(Wordmap::Language_t::NL, "eight", false);
map.setWord(Wordmap::Language_t::NL, "seven", true);
vTaskDelay(delay);
map.setWord(Wordmap::Language_t::NL, "seven", false);
map.setWord(Wordmap::Language_t::NL, "six", true);
vTaskDelay(delay);
map.setWord(Wordmap::Language_t::NL, "six", false);
map.setWord(Wordmap::Language_t::NL, "five", true);
vTaskDelay(delay);
map.setWord(Wordmap::Language_t::NL, "five", false);
map.setWord(Wordmap::Language_t::NL, "four", true);
vTaskDelay(delay);
map.setWord(Wordmap::Language_t::NL, "four", false);
map.setWord(Wordmap::Language_t::NL, "three", true);
vTaskDelay(delay);
map.setWord(Wordmap::Language_t::NL, "three", false);
map.setWord(Wordmap::Language_t::NL, "two", true);
vTaskDelay(delay);
map.setWord(Wordmap::Language_t::NL, "two", false);
map.setWord(Wordmap::Language_t::NL, "one", true);
vTaskDelay(delay);
map.setWord(Wordmap::Language_t::NL, "one", false);
}
static bool IRAM_ATTR timerCallback(gptimer_handle_t timer, const gptimer_alarm_event_data_t *edata, void *user_data)
{
BaseType_t xHigherPriorityTaskWoken = pdFALSE;
xHigherPriorityTaskWoken = matrix.tick();
return xHigherPriorityTaskWoken == pdTRUE;
}
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