ESP32 Forum

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    /* Configure parameters of an UART driver,
     * communication pins and install the driver */
    uart_config_t uart_config = {
        .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,
        .source_clk = UART_SCLK_DEFAULT,
    };

    ESP_ERROR_CHECK(uart_driver_install(UART_NUM, UART_BUF_SIZE * 2, 0, 0, NULL, 0));
    ESP_ERROR_CHECK(uart_param_config(  UART_NUM, &uart_config));
    ESP_ERROR_CHECK(uart_set_pin(       UART_NUM, UART_TX_PIN, UART_RX_PIN, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE));

    // Configure a temporary buffer for the incoming data
    uint8_t *data = (uint8_t *) malloc(UART_BUF_SIZE);

    while (1) {
        // Read data from the UART
        int len = uart_read_bytes(UART_NUM, data, (UART_BUF_SIZE - 1), 20 / portTICK_PERIOD_MS);
        // Write data back to the UART
        uart_write_bytes(UART_NUM, (const char *) data, len);
        if (len) {
            data[len] = '\0';
            ESP_LOGI(TAG, "Recv str: %s", (char *) data);
        } else {
            ESP_LOGI("UART", "No Data.");
        }
    }

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import serial
import threading
import time

ser = serial.Serial('/dev/tty.usbmodem324301', 115200, timeout=1) 

def send_pid_coefficients(p, i, d):
    #command = f'P={p},I={i},D={d}\n'
    command = 'test\n'
    ser.write(command.encode())
    print(f'Sent: {command}')

def read_from_serial():
    try:
        while True:
            if ser.in_waiting > 0:
                line = ser.readline().decode('utf-8').rstrip()
                print(f'Received: {line}')
    except serial.SerialException as e:
        print(f"Serial read error: {e}")
    except OSError as e:
        print(f"OS error: {e}")

# Start a thread to continuously read from the serial port
thread = threading.Thread(target=read_from_serial)
thread.daemon = True  # This makes sure the thread will exit when the main program does
thread.start()

# Example loop for sending data
try:
    while True:
        p = float(input("Enter P coefficient: "))
        i = float(input("Enter I coefficient: "))
        d = float(input("Enter D coefficient: "))
        send_pid_coefficients(p, i, d)
        time.sleep(1)
except KeyboardInterrupt:
    print("Exiting program...")
finally:
    if ser:
        ser.close()
        print("Serial port closed.")

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esp_vfs_dev_usb_serial_jtag_set_tx_line_endings is deprecated. Please use usb_serial_jtag_vfs_set_tx_line_endings.

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REQUIRES esp_driver_usb_serial_jtag

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fatal error: esp_timer.h: No such file or directory
   99 | #include "esp_timer.h"

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REQUIRES esp_timer esp_driver_usb_serial_jtag