//#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 #include "u8g2_esp32_hal.h" #include 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); } } }