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- //#include "freertos/FreeRTOS.h"
- //#include "esp_wifi.h"
- //#include "esp_system.h"
- //#include "esp_event.h"
- //#include "esp_event_loop.h"
- //#include "nvs_flash.h"
- //#include "driver/gpio.h"
- #include "bme280.h"
- #include "bme280_defs.h"
- //#include "ssd1366.h"
- #include "driver/i2c.h"
- #include <u8g2.h>
- #include "u8g2_esp32_hal.h"
- #include <esp_log.h>
-
- void i2c_setup()
- {
- printf("Setting up I²C driver... ");
- //i2c_driver_install(0, I2C_MODE_MASTER, 0, 0, 0);
- i2c_config_t config;
- config.mode = I2C_MODE_MASTER;
- config.sda_io_num = 18;
- config.sda_pullup_en = GPIO_PULLUP_ENABLE;
- config.scl_io_num = 19;
- config.scl_pullup_en = GPIO_PULLUP_ENABLE;
- config.master.clk_speed = 100000;
- i2c_param_config(I2C_NUM_0, &config);
- printf("Set driver parameters... ");
- esp_err_t err = i2c_driver_install(I2C_NUM_0, I2C_MODE_MASTER, 0, 0, 0);
- if (err == ESP_OK)
- printf("Driver installed!\n");
- else if (err == ESP_ERR_INVALID_ARG)
- printf("Driver install failed, invalid arguments!\n");
- else
- printf("Driver install failed!\n");
- }
-
- void i2c_detect()
- {
- printf("Scanning I²C bus:\n");
- uint8_t address;
- printf(" 0 1 2 3 4 5 6 7 8 9 a b c d e f\r\n");
- for (int i = 0; i < 128; i += 16) {
- printf("%02x: ", i);
- for (int j = 0; j < 16; j++) {
- fflush(stdout);
- address = i + j;
- i2c_cmd_handle_t cmd = i2c_cmd_link_create();
- i2c_master_start(cmd);
- i2c_master_write_byte(cmd, (address << 1) | I2C_MASTER_WRITE, 0x1);
- i2c_master_stop(cmd);
- esp_err_t ret = i2c_master_cmd_begin(I2C_NUM_0, cmd, 50 / portTICK_RATE_MS);
- i2c_cmd_link_delete(cmd);
- if (ret == ESP_OK) {
- printf("%02x ", address);
- } else if (ret == ESP_ERR_TIMEOUT) {
- printf("UU ");
- } else {
- printf("-- ");
- }
- }
- printf("\r\n");
- }
- }
-
- int8_t i2c_read(uint8_t dev_id, uint8_t reg_addr, uint8_t *data, uint16_t len) {
- //printf("Reading from bus: dev_id=%x, reg_addr=%x, data=%p, length=%u\n", dev_id, reg_addr, data, len);
- /*i2c_cmd_handle_t cmd = i2c_cmd_link_create();
- i2c_master_start(cmd);
- if (data_addr != -1) {
- i2c_master_write_byte(cmd, chip_addr << 1 | WRITE_BIT, ACK_CHECK_EN);
- i2c_master_write_byte(cmd, data_addr, ACK_CHECK_EN);
- i2c_master_start(cmd);
- }
- i2c_master_write_byte(cmd, chip_addr << 1 | READ_BIT, ACK_CHECK_EN);
- if (len > 1) {
- i2c_master_read(cmd, data, len - 1, ACK_VAL);
- }
- i2c_master_read_byte(cmd, data + len - 1, NACK_VAL);
- i2c_master_stop(cmd);
- esp_err_t ret = i2c_master_cmd_begin(i2c_port, cmd, 1000 / portTICK_RATE_MS);
- i2c_cmd_link_delete(cmd);*/
- i2c_cmd_handle_t cmd = i2c_cmd_link_create();
- i2c_master_start(cmd);
- i2c_master_write_byte(cmd, dev_id << 1 | I2C_MASTER_WRITE, 1);
- i2c_master_write_byte(cmd, reg_addr, 1);
- i2c_master_start(cmd);
- i2c_master_write_byte(cmd, dev_id << 1 | I2C_MASTER_READ, 1);
- if (len > 1) {
- i2c_master_read(cmd, data, len - 1, I2C_MASTER_ACK);
- }
- i2c_master_read_byte(cmd, data + len - 1, I2C_MASTER_NACK);
- i2c_master_stop(cmd);
- i2c_master_cmd_begin(I2C_NUM_0, cmd, 500 / portTICK_RATE_MS);
- i2c_cmd_link_delete(cmd);
- return 0;
- }
-
- int8_t i2c_write(uint8_t dev_id, uint8_t reg_addr, uint8_t *data, uint16_t len) {
- //printf("Writing to bus: dev_id=%x, reg_addr=%x, data=%p, length=%u\n", dev_id, reg_addr, data, len);
- i2c_cmd_handle_t cmd = i2c_cmd_link_create();
- i2c_master_start(cmd);
- i2c_master_write_byte(cmd, (dev_id << 1) | I2C_MASTER_WRITE, 1);
- i2c_master_write_byte(cmd, reg_addr, 1);
- i2c_master_write(cmd, data, len, 1);
- i2c_master_stop(cmd);
- i2c_master_cmd_begin(I2C_NUM_0, cmd, 500 / portTICK_RATE_MS);
- i2c_cmd_link_delete(cmd);
- return 0;
- }
-
- void i2c_delay(uint32_t period) {
- vTaskDelay(period / portTICK_PERIOD_MS);
- }
-
- void i2c_shutdown()
- {
- printf("Shutting down I²C bus... ");
- esp_err_t err = i2c_driver_delete(I2C_NUM_0);
- if (err == ESP_ERR_INVALID_ARG)
- printf("Failed, invalid arguments!\n");
- else
- printf("Success!\n");
- }
-
- void app_main(void)
- {
- i2c_setup();
- struct bme280_dev dev;
- int8_t rslt = BME280_OK;
-
- dev.dev_id = 0x76;
- dev.intf = BME280_I2C_INTF;
- dev.read = i2c_read;
- dev.write = i2c_write;
- dev.delay_ms = i2c_delay;
-
- rslt = bme280_init(&dev);
-
- uint8_t settings_sel;
- uint32_t req_delay;
- struct bme280_data comp_data;
-
- /* Recommended mode of operation: Indoor navigation */
- dev.settings.osr_h = BME280_OVERSAMPLING_1X;
- dev.settings.osr_p = BME280_OVERSAMPLING_16X;
- dev.settings.osr_t = BME280_OVERSAMPLING_2X;
- dev.settings.filter = BME280_FILTER_COEFF_16;
-
- settings_sel = BME280_OSR_PRESS_SEL | BME280_OSR_TEMP_SEL | BME280_OSR_HUM_SEL | BME280_FILTER_SEL;
-
- rslt = bme280_set_sensor_settings(settings_sel, &dev);
-
- /*Calculate the minimum delay required between consecutive measurement based upon the sensor enabled
- * and the oversampling configuration. */
- req_delay = bme280_cal_meas_delay(&(dev.settings));
-
- printf("Temperature, Pressure, Humidity\r\n");
- /* Continuously stream sensor data */
- while (1) {
- rslt = bme280_set_sensor_mode(BME280_FORCED_MODE, &dev);
- /* Wait for the measurement to complete and print data @25Hz */
- dev.delay_ms(req_delay);
- rslt = bme280_get_sensor_data(BME280_ALL, &comp_data, &dev);
- printf("%i °c, %i hPa, %i %%\r\n", comp_data.temperature/100, comp_data.pressure/100, comp_data.humidity/1024);
- vTaskDelay(50 / portTICK_PERIOD_MS);
- }
-
- i2c_shutdown();
-
- u8g2_esp32_hal_t u8g2_esp32_hal = U8G2_ESP32_HAL_DEFAULT;
- u8g2_esp32_hal.sda = 18;
- u8g2_esp32_hal.scl = 19;
- u8g2_esp32_hal_init(u8g2_esp32_hal);
-
- u8g2_t u8g2;
- u8g2_Setup_ssd1306_i2c_128x64_vcomh0_f(&u8g2, U8G2_R0, u8g2_esp32_i2c_byte_cb,
- u8g2_esp32_gpio_and_delay_cb);
-
- //u8x8_SetI2CAddress(&u8g2.u8x8,0x78);
- u8x8_SetI2CAddress(&u8g2.u8x8,0x3C << 1);
- u8g2_InitDisplay(&u8g2); // send init sequence to the display, display is in sleep mode after this,
- u8g2_SetPowerSave(&u8g2, 0); // wake up display
-
- u8g2_SetContrast(&u8g2, 50);
-
- u8g2_uint_t r = 10;
- u8g2_uint_t x = r+1;
- u8g2_uint_t y = r+1;
- int8_t dx = 2;
- int8_t dy = 5;
-
- while (1) {
- u8g2_ClearBuffer(&u8g2);
- u8g2_DrawDisc(&u8g2, x, y, r, U8G2_DRAW_ALL);
- u8g2_DrawFrame(&u8g2, 0, 0, 128, 64);
- u8g2_SendBuffer(&u8g2);
- x = x + dx;
- y = y + dy;
- if (x <= 0+r+1 || x >= 127-r-1) {
- dx = dx * -1;
- }
- if (y <= 0+r+1 || y >= 63-r-1) {
- dy = dy * -1;
- vTaskDelay(10 / portTICK_PERIOD_MS);
- }
- }
-
- }
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