Coding の ORZ : March 2017

Thursday, March 16, 2017

配備升級一下

更換電池

記得拔掉舊硬碟這樣才可以，讓主機板抓到ssd

Monday, March 6, 2017

nodemcu 控制風扇

影片

電路圖

程式碼

	-- Rui Santos
	-- Complete project details at http://randomnerdtutorials.com

	wifi.setmode(wifi.STATION)
	wifi.sta.config("abcdefg","00000000")

	led1 = 2
	led2 = 3
	gpio.mode(led1, gpio.OUTPUT)
	gpio.mode(led2, gpio.OUTPUT)
	srv=net.createServer(net.TCP)
	print(wifi.sta.getip())
	srv:listen(80,function(conn)
	conn:on("receive", function(client,request)
	local buf = "";
	buf = buf.."HTTP/1.1 200 OK\n\n"
	local _, _, method, path, vars = string.find(request, "([A-Z]+) (.+)?(.+) HTTP");
	if(method == nil)then
	_, _, method, path = string.find(request, "([A-Z]+) (.+) HTTP");
	end
	local _GET = {}
	if (vars ~= nil)then
	for k, v in string.gmatch(vars, "(%w+)=(%w+)&*") do
	_GET[k] = v
	end
	end

	if(_GET.pin == "ON1")then
	gpio.write(led1, gpio.HIGH);
	elseif(_GET.pin == "OFF1")then
	gpio.write(led1, gpio.LOW);
	elseif(_GET.pin == "ON2")then
	gpio.write(led2, gpio.HIGH);
	elseif(_GET.pin == "OFF2")then
	gpio.write(led2, gpio.LOW);
	end
	client:send(buf);
	client:close();
	collectgarbage();
	end)
	end)

view raw fan.lua hosted with ❤ by GitHub

arduino 與 nodemcu 透過i2c溝通

程式碼

	#include <Wire.h>
	const byte SLAVE_ADDRESS = 0x15;
	void setup() {
	Wire.begin(0x15); // join i2c bus with address #8
	Wire.onReceive(receiveEvent); // register event
	Serial.begin(9600); // start serial for output
	}

	void loop() {
	delay(100);
	}

	// function that executes whenever data is received from master
	// this function is registered as an event, see setup()
	void receiveEvent(int howMany) {
	while (1 < Wire.available()) { // loop through all but the last
	char c = Wire.read(); // receive byte as a character
	Serial.print(c); // print the character
	}
	int x = Wire.read(); // receive byte as an integer
	Serial.println(x); // print the integer
	}

view raw arduino_i2c.ino hosted with ❤ by GitHub

	id=0
	sda=1
	scl=2
	ARDUINO_I2C = 0x15
	tmp=0
	i2c.setup(id,sda,scl,i2c.SLOW)

	print("I2C demo")
	while 1 do
	i2c.start(id)
	i2c.address(id, 0x15,i2c.TRANSMITTER)
	i2c.write(id,tmp)
	i2c.stop(id)
	print("write",tmp)
	tmr.delay(1000000)
	if tmp ==34 then
	tmp=0
	else
	tmp=tmp+1
	end


	end

view raw nodemcu_i2c.lua hosted with ❤ by GitHub

nodemcu 接受紅外線控制

電路圖

程式碼

	/*
	* IRremoteESP8266: IRrecvDemo - demonstrates receiving IR codes with IRrecv
	* An IR detector/demodulator must be connected to the input RECV_PIN.
	* Version 0.1 Sept, 2015
	* Based on Ken Shirriff's IrsendDemo Version 0.1 July, 2009, Copyright 2009 Ken Shirriff, http://arcfn.com
	*/

	#include <IRremoteESP8266.h>

	int RECV_PIN = 2; //an IR detector/demodulatord is connected to GPIO pin 2
	int tmp=255;

	IRrecv irrecv(RECV_PIN);

	decode_results results;
	int counter=0;
	void setup()
	{
	Serial.begin(9600);
	irrecv.enableIRIn(); // Start the receiver
	pinMode(16, OUTPUT);
	pinMode(5, OUTPUT);
	pinMode(4, OUTPUT);

	}

	void loop() {
	if (irrecv.decode(&results)) {
	counter++;

	if(counter==1)
	{
	Serial.println(results.value, HEX);


	if(results.value==2780520712){
	digitalWrite(16, tmp);
	digitalWrite(5, 0);
	digitalWrite(4, 0);}
	if(results.value==1275988228){
	digitalWrite(16,0);
	digitalWrite(5, tmp);
	digitalWrite(4, 0);}
	if(results.value==1440861668){
	digitalWrite(16, 0);
	digitalWrite(5, 0);
	digitalWrite(4, tmp);}
	Serial.println("44444");
	}
	else if(counter==3)
	{counter=0;}


	irrecv.resume(); // Receive the next value
	}

	}

view raw 3colorled.ino hosted with ❤ by GitHub

nodemcu 溫溼度監控

網頁

電路圖

程式碼


	// WiFi Weather Station
	// Required libraries
	#include <ESP8266WiFi.h>
	// Libraries
	#include <dht.h>
	// Pin
	#define dht_dpin 16 //定義訊號要從Pin A0 進來
	#define sensorPin 0
	dht DHT;
	// WiFi parameters
	int value = 0;
	int counter = 0;
	String tmp="";
	String tmp2="";
	const char* ssid = "AP";
	const char* password = "123456789";
	// Create an instance of the server
	WiFiServer server(80);
	void setup() {
	// Start Serial
	Serial.begin(115200);
	delay(10);
	// Connect to WiFi network
	Serial.println();
	Serial.println();
	Serial.print("Connecting to ");
	Serial.println(ssid);
	WiFi.begin(ssid, password);
	while (WiFi.status() != WL_CONNECTED) {
	delay(500);
	Serial.print(".");
	}
	Serial.println("");
	Serial.println("WiFi connected");
	// Start the server
	server.begin();
	Serial.println("Server started");
	// Print the IP address
	Serial.println(WiFi.localIP());
	//光敏
	pinMode(0, INPUT);
	}
	void loop() {
	// Check if a client has connected
	WiFiClient client = server.available();
	if (!client) {
	return;
	}
	// Wait until the client sends some data
	Serial.println("new client");
	while(!client.available()){
	delay(1);
	}
	// Read the first line of the request
	String req = client.readStringUntil('\r');
	Serial.println(req);
	client.flush();
	counter++;
	if(counter%2==0)
	{
	value = analogRead(0);

	if(value<204){
	tmp2="Very bright";
	Serial.println("Very bright");

	}
	else if (value > 204 && value <=408){
	Serial.println("Ordinary bright");
	tmp2="Ordinary bright";


	}
	else if (value > 408 && value <=612){
	Serial.println("Medium light");
	tmp2="Medium light";


	}
	else if (value > 612 && value <=816){
	Serial.println("Dark");
	tmp2="Dark";


	}
	else if (value > 816 && value <=1020){
	Serial.println("Very Dark");
	tmp2="Very Dark";
	}
	Serial.println( tmp2 );
	DHT.read11(dht_dpin); //去library裡面找DHT.read11
	// Prepare the response
	String s = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n";
	s += "<head>";
	s += "<meta http-equiv=\"refresh\" content=\"1\">";
	s += "<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">";
	//s += "<meta http-equiv=\"refresh\" content=\"60\" />";
	s += "<script src=\"https://code.jquery.com/jquery-2.1.3.min.js\"></script>";
	s += "<link rel=\"stylesheet\" href=\"https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css\">";
	s += "<style>body{font-size: 12px;} .voffset {margin-top: 30px;}</style>";
	s += "</head>";
	s += "<div class=\"container\">";
	s += "<h1>WiFi Weather Station</h1>";
	s += "<div class=\"row voffset\">";

	tmp+= "<div class=\"col-md-3\">Temperature: </div><div class=\"col-md-3\">" + String(DHT.temperature) + "   &nbsp   &nbsplight: "+tmp2+ "</div>";
	tmp+="<div class=\"col-md-3\">Humidity: </div><div class=\"col-md-3\">" + String(DHT.humidity) + "</div>"+"</br>";

	s += tmp;


	s += "</div>";
	s += "</div>";
	// Send the response to the client

	client.print(s);
	delay(1);
	Serial.println("Client disconnected");
	// The client will actually be disconnected
	// when the function returns and 'client' object is detroyed
	}
	if(counter>=16)
	{
	counter=0;
	tmp="";
	}
	}

view raw temp.lua hosted with ❤ by GitHub

nodemcu RFID 門禁卡

電路圖

程式碼

	#include <SPI.h>
	#include <MFRC522.h>

	#define SS_PIN D4
	#define RST_PIN D8

	MFRC522 rfid(SS_PIN, RST_PIN); // Instance of the class

	MFRC522::MIFARE_Key key;

	// Init array that will store new NUID
	byte nuidPICC[4];
	byte ansidPICC[4] = {0xE5, 0x0F, 0x23, 0x77};
	void setup() {
	Serial.begin(9600);
	SPI.begin(); // Init SPI bus
	rfid.PCD_Init(); // Init MFRC522

	for (byte i = 0; i < 6; i++) {
	key.keyByte[i] = 0xFF;
	}

	pinMode(D1, OUTPUT);
	pinMode(D2, OUTPUT);
	pinMode(D3, OUTPUT);

	Serial.println(F("This code scan the MIFARE Classsic NUID."));
	Serial.print(F("Using the following key:"));
	printHex(key.keyByte, MFRC522::MF_KEY_SIZE);
	}

	void loop() {

	// Look for new cards
	if ( ! rfid.PICC_IsNewCardPresent())
	return;

	// Verify if the NUID has been readed
	if ( ! rfid.PICC_ReadCardSerial())
	return;

	Serial.print(F("PICC type: "));
	MFRC522::PICC_Type piccType = rfid.PICC_GetType(rfid.uid.sak);
	Serial.println(rfid.PICC_GetTypeName(piccType));

	// Check is the PICC of Classic MIFARE type
	if (piccType != MFRC522::PICC_TYPE_MIFARE_MINI &&
	piccType != MFRC522::PICC_TYPE_MIFARE_1K &&
	piccType != MFRC522::PICC_TYPE_MIFARE_4K) {
	Serial.println(F("Your tag is not of type MIFARE Classic."));
	return;
	}

	if (rfid.uid.uidByte[0] != nuidPICC[0] \|\|
	rfid.uid.uidByte[1] != nuidPICC[1] \|\|
	rfid.uid.uidByte[2] != nuidPICC[2] \|\|
	rfid.uid.uidByte[3] != nuidPICC[3] ) {
	Serial.println(F("A new card has been detected."));

	// Store NUID into nuidPICC array
	for (byte i = 0; i < 4; i++) {
	nuidPICC[i] = rfid.uid.uidByte[i];
	}

	Serial.println(F("The NUID tag is:"));
	Serial.print(F("In hex: "));
	printHex(rfid.uid.uidByte, rfid.uid.size);
	Serial.println();
	Serial.print(F("In dec: "));
	printDec(rfid.uid.uidByte, rfid.uid.size);
	Serial.println();
	}
	else Serial.println(F("Card read previously."));

	// Halt PICC
	rfid.PICC_HaltA();

	// Stop encryption on PCD
	rfid.PCD_StopCrypto1();
	}


	/**
	Helper routine to dump a byte array as hex values to Serial.
	*/
	void printHex(byte *buffer, byte bufferSize) {
	int ans_counter = 0;
	for (byte i = 0; i < bufferSize; i++) {
	Serial.print(buffer[i] < 0x10 ? " 0" : " ");
	Serial.print(buffer[i], HEX);
	if (buffer[i] == ansidPICC[i])
	ans_counter++;
	}

	if ( ans_counter == 4)
	{
	digitalWrite(D1, 1);
	digitalWrite(D3, 1);
	delay(300);
	digitalWrite(D1, 0);
	digitalWrite(D3, 0);


	}
	else if ( ans_counter == 0)
	{
	for (int i = 0; i < 2; i++) {
	digitalWrite(D2, 1);
	digitalWrite(D3, 1);
	delay(50);
	digitalWrite(D2, 0);
	digitalWrite(D3, 0);
	delay(50);
	}

	}
	}

	/**
	Helper routine to dump a byte array as dec values to Serial.
	*/
	void printDec(byte *buffer, byte bufferSize) {
	for (byte i = 0; i < bufferSize; i++) {
	Serial.print(buffer[i] < 0x10 ? " 0" : " ");
	Serial.print(buffer[i], DEC);
	}

	}

view raw doorlock.lua hosted with ❤ by GitHub

nodemcu 模擬路燈

網頁

電路圖

程式碼

	#include <ESP8266WebServer.h>
	int sensorPin = 2;
	int value = 0;
	const char* ssid = "AP";
	const char* password = "123456789";
	WiFiServer server(80);
	void setup() {
	Serial.begin(115200);
	// prepare GPIO2
	pinMode(0, INPUT);
	pinMode(2, OUTPUT);
	digitalWrite(2, 0);
	// Connect to WiFi network
	Serial.println();
	Serial.println();
	Serial.print("Connecting to ");
	Serial.println(ssid);

	WiFi.begin(ssid, password);

	while (WiFi.status() != WL_CONNECTED) {
	delay(500);
	Serial.print(".");
	}
	Serial.println("");
	Serial.println("WiFi connected");

	// Start the server
	server.begin();
	Serial.println("Server started");

	// Print the IP address
	Serial.println(WiFi.localIP());
	}


	void loop() {
	// Check if a client has connected
	WiFiClient client = server.available();
	if (!client) {
	return;
	}

	// Wait until the client sends some data
	Serial.println("new client");
	while(!client.available()){
	delay(1);
	}

	// Read the first line of the request
	String req = client.readStringUntil('\r');
	Serial.println(req);
	client.flush();


	// Match the request
	int val;
	if (req.indexOf("/LED=ON") != -1)
	val = 1;
	else if (req.indexOf("/LED=OFF") != -1)
	val = 0;
	else if (req.indexOf("/LED=check") != -1)
	val = -1;
	else {
	Serial.println("invalid request");
	client.stop();
	return;
	}

	// Set GPIO2 according to the request


	client.flush();

	// Prepare the response

	client.println("<html>");
	client.println("<a href=\"/LED=ON\"\"><button>Turn On </button></a>");
	client.println("<a href=\"/LED=OFF\"\"><button>Turn Off </button></a>");
	client.println("<a href=\"/LED=check\"\"><button>Led Status</button></a><br />");
	client.println("</html>");

	// Send the response to the client

	delay(1);
	Serial.println("Client disonnected");
	String tmp="";
	value = analogRead(0);
	//Serial.println(value, DEC);
	if(val==1 ){
	tmp="Very bright";
	digitalWrite(2, val);
	}
	else if(val==0 ){
	tmp="Very Dark";
	digitalWrite(2, val);
	}
	else if (val==-1){
	if(value<204){
	tmp="Very bright";
	Serial.println("Very bright");
	digitalWrite(2, 0);
	val = 1;
	}
	else if (value > 204 && value <=408){
	Serial.println("Ordinary bright");
	tmp="Ordinary bright";
	digitalWrite(2, 0);
	val = 1;
	}
	else if (value > 408 && value <=612){
	Serial.println("Medium light");
	tmp="Medium light";
	digitalWrite(2, 0);
	val = 1;
	}
	else if (value > 612 && value <=816){
	Serial.println("Dark");
	tmp="Dark";
	digitalWrite(2, 1);
	val = 0;
	}
	else if (value > 816 && value <=1020){
	Serial.println("Very Dark");
	tmp="Very Dark";
	digitalWrite(2, 1);
	val = 0;
	}
	}
	String s = "<html>\r\nGPIO is now ";
	s += (val)?"high":"low ";
	s += " Light Power:"+tmp;
	s += "</html>\n";
	client.print(s);
	// The client will actually be disconnected
	// when the function returns and 'client' object is detroyed
	}

view raw light.lua hosted with ❤ by GitHub

Wednesday, March 1, 2017

Ardunino 倒車雷達

電路圖

影片

程式碼

	const int trig = 5;
	const int echo = 4;
	int buzzerPin = 3;//蜂鳴器
	const int inter_time = 100;
	int time = 0;

	void setup() {
	Serial.begin(9600);
	pinMode (trig, OUTPUT);
	pinMode (echo, INPUT);
	pinMode (buzzerPin, OUTPUT);
	}

	void loop() {
	float duration, distance;
	digitalWrite(trig, HIGH);
	delayMicroseconds(100);
	digitalWrite(trig, LOW);
	duration = pulseIn (echo, HIGH);
	distance = (duration/2)/29;
	Serial.print("Data:");
	Serial.print (time/100);
	Serial.print(", d = ");
	Serial.print(distance);
	if(distance<10){
	digitalWrite (buzzerPin, HIGH);
	delay (5);
	digitalWrite (buzzerPin, LOW);
	delay (5);
	}
	else
	{
	digitalWrite (buzzerPin, HIGH);
	delay (100);
	digitalWrite (buzzerPin, LOW);
	delay (100);
	}
	Serial.println(" cm");
	time = time + inter_time;
	delay(inter_time);
	}

view raw 倒車雷達.ino hosted with ❤ by GitHub