MAX485 module TTL to RS-485 (มีสต็อกสินค้าในประเทศไทยพร้อมจัดส่ง) สำหรับ Arduino

MAX485 module RS485 module TTL to RS-485

Features:

Onboard MAX485 chip provides a low power consumption for RS-485 communication.

Onboard 5.08 (mm) pitch 2P terminals, to facilitate the RS-485 communication wiring.

All of the pins have been led by the MCU control operations

Working voltage: 5V

Board size: 44 x14mm

Programa Transmissor RS485

//Programa: Comunicação RS485 com Arduino - Transmissor

//Autor: Arduino e Cia

#include <SoftwareSerial.h>

//Pinos de comunicacao serial do modulo RS485

#define Pino_RS485_RX 10

#define Pino_RS485_TX 11

//Pino de controle transmissao/recepcao

#define SSerialTxControl 3

#define RS485Transmit HIGH

#define RS485Receive LOW

//Define led 13 para mostrar atividade na comunicacao

#define Pin13LED 13

//Cria a serial por sofware para conexao com modulo RS485

SoftwareSerial RS485Serial(Pino_RS485_RX, Pino_RS485_TX);

void setup()

{

//Inicializa a serial do Arduino

Serial.begin(9600);

Serial.println("Modulo Transmissor");

S...