将字符串从 pyserial 发送到 arduino

Question

你好，我需要将 spotify 歌曲名称从 python 发送到 arduino，但 arduino 只收到像“122”、“117”等数字。如何发送所有字符串？这是我的代码

python代码：

import serial
import time
from SwSpotify import spotify

ser = serial.Serial('COM3', 9600)

while True:
   print(spotify.song())
   ser.write(spotify.song().encode())
   time.sleep(5)

Arduino代码：

#include <LiquidCrystal_PCF8574.h>
#include <Wire.h>

LiquidCrystal_PCF8574 lcd(0x27); // set the LCD address to 0x27 for a 16 chars and 2 line display


int incomingByte;     

void setup() {
  Serial.begin(9600);
  lcd.begin(16, 2); 
  lcd.clear();
  lcd.setBacklight(255);
  lcd.print("Hello!");
}

void loop() {
  if (Serial.available() > 0) {
    incomingByte = Serial.read();
    lcd.clear();
    lcd.print(incomingByte);
  }
}

Answer 1

为了显示一个字符使用lcd.write

http://www.arduino.cc/en/Tutorial/LiquidCrystalSerialDisplay

*/

// include the library code:
#include <LiquidCrystal.h>

// initialize the library by associating any needed LCD interface pin
// with the arduino pin number it is connected to
const int rs = 12, en = 11, d4 = 5, d5 = 4, d6 = 3, d7 = 2;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);

void setup() {
  // set up the LCD's number of columns and rows:
  lcd.begin(16, 2);
  // initialize the serial communications:
  Serial.begin(9600);
}

void loop() {
  // when characters arrive over the serial port...
  if (Serial.available()) {
    // wait a bit for the entire message to arrive
    delay(100);
    // clear the screen
    lcd.clear();
    // read all the available characters
    while (Serial.available() > 0) {
      // display each character to the LCD
      lcd.write(Serial.read());
    }
  }
}

请阅读手册并参考Arduino的示例和教程

将字符串从 pyserial 发送到 arduino

Send string from pyserial to arduino

c++

python

string

arduino