[arduino][python] DS18B20 Digital Sensor pyserial 통신

Arduino UNO R4 Wifi : DS18B20 및 Bluetooth 연결도

 

[Arduino IDE 사용] / [Visual Studio Code사용]

Arduino IDE or VS code 초기 셋팅 및 설정 참고

https://jinozblog.tistory.com/207

[arduino] LM35 / TMP36 Sensor 연결도 : arduino IDE or VScode 설정 및 모니터링

 

 

 

[Arduino Code] 

#include <OneWire.h>
#include <DallasTemperature.h>

#define ONE_WIRE_BUS 13
OneWire Wire(ONE_WIRE_BUS);
DallasTemperature sensor(&Wire);
char value[8];

// arduino board
int baudrate = 9600;

void setup() {
	Serial.begin(baudrate);
	sensor.begin();
}

void loop()
{
	sensor.requestTemperatures();
	dtostrf(sensor.getTempCByIndex(0) , 5, 2, value);
	Serial.println(value);
	delay(1000);
}

 

 

Arduino Serial Monitor

 

[python Code] 

import os
import platform
import serial
import serial.tools.list_ports as serial_port


port_lists = serial_port.comports()
if platform.platform()[0:5] == 'macOS':
    port_type_ser = '/dev/cu.usbmodem'
    for port_list in port_lists:
        if port_list.device[0:16] == port_type_ser:
            port_ser = port_list.device
else: # ubuntu
    port_type_ser = '/dev/ttyACM'
    for port_list in port_lists:
        if port_list.device[0:11] == port_type_ser:
            port_ser = port_list.device
    if port_ser == None:
        os.system("sudo chmod a+rw {}".format(port_ser))
    else:
        pass

baud_rate = 9600
# serial_port = '/dev/cu.usbmodemF412FA9B962C2'
# ard = serial.Serial(serial_port,baud_rate)

ard = serial.Serial(port_ser,baud_rate)

while(1):
    if ard.readable():
        # ard.readline() : Serial Monitor 내용을 한 줄씩 읽어온다.
        raw_data = ard.readline()
        # ard.decode() : readline을 decoding
        data = raw_data.decode()[:len(raw_data)-1]
        # Arduino Serial Monitor 처럼 print
        print(data)

 

 

python Terminal Monitor