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Found 3 results

  1. Salut, vreau sa achizitionez ambele device-uri pentru a face anumite teste, pentru a ma juca cu ele, pentru a invata in principiu. Vreau neaparat sa le achizitionez pe amandoua, iar suma de care dispun este in jur de 60-70$ pentru amandoua. M-am gandit la asa ceva : Arduino: Arduino Component Basic Element Pack Set Kit Case For Arduino Starter Beginners -- BuyinCoins.com Raspberry Pi : Raspberry Pi Model B+ 512MB RAM Project Module Board Made In UK Sale-Banggood.com E ok alegerea? Voi ce imi recomandati? Multumesc.
  2. Salut la toata lumea Se gaseste cineva care sa pot vorbi eventual sa ma ajute sa imi faca un cod pentru arduino si anume sa pot trimite niste coduri cu ajutorul IR-urile puse pe arduino Si anume vreau sa pun 10 leduri IR pe arduino si sa il prgramez sa imi trimita pe fiecare led de la 1 la 10 codurile care le iplementez eu in codul masina si la anumiti timpi prestabiliti de mine Gen vreau asa codul 1 sa fie emis pe ledul IR 1 in timpul x codul 2 ..... codul 3..... Se poate ...ma poate ajuta cineva Eu am facut ceva dar imi trimite numai pe pinul 3 de la arduino si nu merge sa trimit 10 coduri pe un singur canal de iesire ci trebuie fiecare pe cate 10 leduri IR si la anumiti timpi si o ordine Va multumesc si sper ca am explicat bine ...
  3. Optical mouse uses a small camera that records surface to calculate movements of the mouse. In this tutorial I will show you how to display video signal of this camera in your browser. The mouse I took apart was an old Logitech RX 250 which contains ADNS-5020 optical sensor. This sensor records 15x15 pixel images in grayscale. It also calculates X-Y movements of the mouse. To get the things running you will need: - arduino - ethernet shield - optical mouse with ADNS-5020 sensor - 10K ohm resistor Connect everything together Make sure that pins (NRESET, NCS, DSIO, SCLK) of the sensor don't connect to anything on the mouse board. If they do, cut the traces. (I removed the main chip and some resistors to achieve the same thing.) Solder 10K ohm resistor between NRESET and +5V. Then solder wires (approx. 20cm) to pins NCS, DSIO, SCLK, +5V, GND. This is a scheme that you should end with: Put Ethernet shield on arduino and connect it to local network. Then connect mouse sensor to arduino like this: +5V -------------- Arduino +5V GND -------------- Arduino GND NCS -------------- Arduino digital pin 7 SDIO -------------- Arduino digital pin 6 SCLK -------------- Arduino digital pin 5 Arduino sketch In the sketch below replace receiverIP value (in my case 192, 168, 1, 102) to IP of your computer. Then upload the sketch to arduino. #include <SPI.h> #include <Ethernet.h> #include <EthernetUdp.h> byte arduinoMac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; IPAddress arduinoIP(192, 168, 1, 177); // desired IP for Arduino unsigned int arduinoPort = 8888; // port of Arduino IPAddress receiverIP(192, 168, 1, 102); // IP of udp packets receiver unsigned int receiverPort = 6000; // port to listen on my PC EthernetUDP Udp; int SCLK = 5; int SDIO = 6; int NCS = 7; void setup() { Serial.begin(9600); Ethernet.begin(arduinoMac,arduinoIP); Udp.begin(arduinoPort); pinMode(SCLK, OUTPUT); pinMode(SDIO, OUTPUT); pinMode(NCS, OUTPUT); mouse_reset(); delay(10); } void loop() { char img[225]; for (int i=0;i<225;i++){ img[i]=readLoc(0x0b); img[i] &= 0x7F; img[i]+=1;//if there is 0 value, part of udp package is lost Serial.print(img[i], DEC); Serial.print(","); delay(2); } Serial.println(); Udp.beginPacket(receiverIP, receiverPort); //start udp packet Udp.write(img); //write mouse data to udp packet Udp.endPacket(); // end packet delay(500); } void mouse_reset(){ // Initiate chip reset digitalWrite(NCS, LOW); pushbyte(0x3a); pushbyte(0x5a); digitalWrite(NCS, HIGH); delay(10); // Set 1000cpi resolution digitalWrite(NCS, LOW); pushbyte(0x0d); pushbyte(0x01); digitalWrite(NCS, HIGH); } unsigned int readLoc(uint8_t addr){ unsigned int ret=0; digitalWrite(NCS, LOW); pushbyte(addr); ret=pullbyte(); digitalWrite(NCS, HIGH); return(ret); } void pushbyte(uint8_t c){ pinMode(SDIO, OUTPUT); for(unsigned int i=0x80;i;i=i>>1){ digitalWrite(SCLK, LOW); digitalWrite(SDIO, c & i); digitalWrite(SCLK, HIGH); } } unsigned int pullbyte(){ unsigned int ret=0; pinMode(SDIO, INPUT); for(unsigned int i=0x80; i>0; i>>=1) { digitalWrite(SCLK, LOW); ret |= i*digitalRead(SDIO); digitalWrite(SCLK, HIGH); } pinMode(SDIO, OUTPUT); return(ret); } Open serial window and you should see data flow from mouse: Arduino sketch In the sketch below replace receiverIP value (in my case 192, 168, 1, 102) to IP of your computer. Then upload the sketch to arduino. Install Node.js and Socket.IO To display data in browser we need to have node.js and socket.io installed on computer. Install node.js from here: nodejs.org then go to windows command prompt and run: npm install socket.io Node.js and and website code In the code below we configure node.js to listen to udp traffic from arduino, send all data to browser with socket.io and setup a basic web server. var dgram = require("dgram"); var server = dgram.createSocket("udp4"); var io = require('socket.io').listen(8000); // server listens for socket.io communication at port 8000 io.set('log level', 1); // disables debugging. this is optional. you may remove it if desired. server.on("message", function (msg, rinfo) { //every time new data arrives do this: //console.log("server got: " + msg + " from " + rinfo.address + ":" + rinfo.port); //console.log("server got:" + msg); io.sockets.emit('message', msg); }); server.on("listening", function () { var address = server.address(); console.log("server listening " + address.address + ":" + address.port); }); server.bind(6000); //listen to udp traffic on port 6000 var http = require("http"), url = require("url"), path = require("path"), fs = require("fs") port = process.argv[2] || 8888; http.createServer(function(request, response) { var uri = url.parse(request.url).pathname , filename = path.join(process.cwd(), uri); var contentTypesByExtension = { '.html': "text/html", '.css': "text/css", '.js': "text/javascript" }; fs.exists(filename, function(exists) { if(!exists) { response.writeHead(404, {"Content-Type": "text/plain"}); response.write("404 Not Found\n"); response.end(); return; } if (fs.statSync(filename).isDirectory()) filename += '/index.html'; fs.readFile(filename, "binary", function(err, file) { var headers = {}; var contentType = contentTypesByExtension[path.extname(filename)]; if (contentType) headers["Content-Type"] = contentType; response.writeHead(200, headers); response.write(file, "binary"); response.end(); }); }); }).listen(parseInt(port, 10)); console.log("Static file server running at\n => http://localhost:" + port + "/\nCTRL + C to shutdown"); Just save the code as: code.js Now we need to create a website which will convert data from socket.io into 15x15 image. This is it: <html> <head> <style> #wrapper { width:300px; height:300px; } div div { width:20px; height:20px; float:left; } </style> <script type="text/javascript" src="//localhost:8000/socket.io/socket.io.js"></script> <script> var socket = io.connect('http://localhost:8000'); socket.on('connect', function () { socket.on('message', function (msg) { document.getElementById('wrapper').innerHTML = ''; for (var i = 0; i < 225; i++) { pixDraw(Math.round((msg[i])*2.4)); } }); }); function pixDraw(clr) { var pixDiv = document.createElement('div'); pixDiv.style.backgroundColor = "rgb("+clr+","+clr+","+clr+")"; document.getElementById("wrapper").appendChild(pixDiv); } </script> </head> <body> <div id="wrapper"></div> </body> </html> Save it as index.html Run it! If you are on windows then just download zip file below and run the runme.bat file. If you are on linux then run the command node code.js in the shell. Now open the address http://localhost:8888/ in a web browser and you should see a realtime image from mouse: Source : Hack a Mouse
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