const int PIRSensor = 3; // 紅外線動作感測器連接的腳位 const int relayPin = 13; // LED 腳位 int sensorValue = 0; // 紅外線動作感測器訊號變數 void setup() { pinMode(PIRSensor, INPUT); pinMode(relayPin, OUTPUT); } void loop(){ // 讀取 PIR Sensor 的狀態 sensorValue = digitalRead(PIRSensor); // 判斷 PIR Sensor 的狀態 if (sensorValue == HIGH) { digitalWrite(relayPin, HIGH); // 有人，開燈 } else { digitalWrite(relayPin, LOW); // 沒人，關燈 } }
| Pin | uart 1289 | uart 57 | uart 12 | i2c 89 | i2c 12 | spi 257 | spi 189 | DAC | ADC | PWM | Pulse Count | Wake | PTPG Trigger |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | CTS | TX | SCL | SCLK | Yes | Yes | Yes | Yes | Yes | ||||
| 2 | RTS | RX | SDA | MISO | Yes | Yes | |||||||
| 5 | TX | SCLK | Yes | Yes | Yes | For Pin 7 | |||||||
| 7 | RX | MOSI | Yes | Yes | |||||||||
| 8 | TX | SCL | MOSI | Yes | Yes | For Pin 5 or 9 | |||||||
| 9 | RX | SDA | MISO | Yes | Yes | For Pin 2 |
server.log("Device Started"); function arduinoData() { // Read the UART for data sent by Arduino to indicate the state of its LED. local b = arduino.read(); while (b != -1) { // As long as UART read value is not -1, we're getting data local state = "Unknown"; if (b == 0x10) state = "Off"; if (b == 0x11) state = "On" server.log("LED: " + state); b = arduino.read(); } } function blink(state) { // Write state (1 or 0) to the Arduino server.log("Setting LED to: " + state); arduino.write(state); imp.wakeup(1.0, function(){ blink(1 - state); }); } // Alias UART to which Arduino is connected and configure UART arduino <- hardware.uart57; arduino.configure(9600, 8, PARITY_NONE, 1, NO_CTSRTS, arduinoData); // Start blinking blink(1);
blink(state)這個函式，每秒會傳送一次與上次相反的state值給arduino。
arduinoData()這個函式只付責讀取arduino送過來的值，並log印出狀態文字。
// Arduino device code
int led = 13; // LED pin number
void setup() {
Serial.begin(9600); // Configure serial
pinMode(led, OUTPUT); // Configure LED pin
digitalWrite(led, 0); // Turn LED off
}
void loop() {
int b = 0;
// If there's data available
if (Serial.available() > 0) {
// Read a byte
b = Serial.read();
if (b == 0x00) {
digitalWrite(led, LOW);
Serial.write(0x10);
} else if (b == 0x01) {
digitalWrite(led, HIGH);
Serial.write(0x11);
}
}
}
view raw
#include <SoftwareSerial.h> SoftwareSerial mySerial(10, 11); // RX, TX int led = 13; void setup() { // Open serial communications and wait for port to open: Serial.begin(9600); pinMode(led, OUTPUT); // Configure LED pin digitalWrite(led, 0); // Turn LED off // set the data rate for the SoftwareSerial port mySerial.begin(9600); } void loop() { // run over and over int b=0; if (mySerial.available()>0) { //Serial.write(mySerial.read()); b = mySerial.read(); if (b == 0x00) { digitalWrite(led, LOW); mySerial.write(0x10); } else if (b == 0x01) { digitalWrite(led, HIGH); mySerial.write(0x11); } Serial.println(b); } if (Serial.available()) { mySerial.write(Serial.read()); } }
