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nfc_logbook.ino
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nfc_logbook.ino
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/*
Logbook for FabLab La Côte
www.fablab-lacote.ch
May 2015, Gregor Bruhin
*/
#include <SPI.h>
#include <Ethernet.h>
#include <PN532.h>
//define nfc SPI pins
#define SCK 7
#define MOSI 5
#define SS 4
#define MISO 6
PN532 nfc(SCK, MISO, MOSI, SS);
#define SoundPin 3
#define GreenLed A0
#define RedLed A1
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
char server[] = "admin.fablab-lacote.ch";
// Set the static IP address to use if the DHCP fails to assign
IPAddress ip(192, 168, 0, 177);
// Initialize the Ethernet client library
// with the IP address and port of the server
// that you want to connect to (port 80 is default for HTTP):
EthernetClient client;
// nfc read card id
uint32_t id, prev_id;
float prev_millis;
void setup() {
// Open serial communications and wait for port to open:
Serial.begin(9600);
Serial.println("Starting Up...");
//8,9 as aditionnal input for future use
pinMode(8, INPUT_PULLUP);
pinMode(9, INPUT_PULLUP);
//A0 green led, A1 red led
pinMode(GreenLed, OUTPUT); //green led
pinMode(RedLed, OUTPUT); //red led
pinMode(SoundPin, OUTPUT);
// start the Ethernet connection:
if (Ethernet.begin(mac) == 0) {
Serial.println("Failed to configure Ethernet using DHCP");
// no point in carrying on, so do nothing forevermore:
// try to congifure using IP address instead of DHCP:
Ethernet.begin(mac, ip);
}
// give the Ethernet shield a second to initialize:
delay(1000);
Serial.print("Ethernet ok: ");
// print your local IP address:
Serial.println(Ethernet.localIP());
Serial.println("Starting NFC...");
//starting nfc reader
nfc.begin();
// configure board to read RFID tags and cards
nfc.SAMConfig();
for (int i = 1; i < 300; i++) {
digitalWrite(SoundPin, HIGH); // set the pin HIGH
delayMicroseconds(400 - i); // wait for a bit
digitalWrite(SoundPin, LOW); // set the pin LOW
delayMicroseconds(400 - i); // wait for a bit
}
Serial.println("Finished Startup...");
}
void loop()
{
// look for MiFare type cards
id = nfc.readPassiveTargetID(PN532_MIFARE_ISO14443A);
if (id != 0) {
//do not read repeatedly and wait 10 seconds
if (prev_id != id or millis() > prev_millis + 10000) {
Serial.print("Read card #"); Serial.println(id);
http_request(id);
}
prev_id = id;
prev_millis = millis();
}
}
void http_request(uint32_t id) {
Serial.println("connecting...");
// if you get a connection, report back via serial:
if (client.connect(server, 80)) {
Serial.println("connected");
// Make a HTTP request:
//Old parameter: client.print("GET /iot/logbook/nfc.php?id=");
client.print("GET /api/nfc/record?id=");
client.print(id);
client.print("&a=");
client.print(digitalRead(8));
client.print("&b=");
client.print(digitalRead(9));
client.println(" HTTP/1.1");
//Old parameter: client.println("Host: admin.fablab-lacote.ch");
client.println("Host: admin.fablab-lacote.ch");
//client.println("Content-Type: application/json");
client.println("Connection: close");
client.println();
}
else {
// ko you didn't get a connection to the server:
Serial.println("connection failed");
}
String result = "";
while (client.connected()) {
// if there are incoming bytes available from the server, read them
while (client.available()) {
char c = client.read();
result = result + c;
// Process data line by line and ignore HTTP headers and other useless info
if (result.endsWith("\r\n\r\n"))
{
if (result.startsWith("Hello")) {
int i = 0;
while (result[i] != '\n') {
Serial.print(result[i]);
i++;
}
Serial.println();
Serial.println("User FOUND");
user_found();
}
else if (result.startsWith("Carte Inconnue")) {
Serial.println("User _NOT_ FOUND");
user_not_found();
}
else {
//Do nothing with header, skip http payload length
while (client.read() != '\n') {}
}
result = ""; //clean processed result lines
}
}
}
Serial.println("disconnecting.");
client.stop();
}
void user_found() {
digitalWrite(GreenLed, HIGH);
for (int i = 1; i < 100; i++) {
digitalWrite(SoundPin, HIGH); // set the pin HIGH
delayMicroseconds(500); // wait for a bit
digitalWrite(SoundPin, LOW); // set the pin LOW
delayMicroseconds(500); // wait for a bit
}
delay(2000);
digitalWrite(GreenLed, LOW);
}
void user_not_found() {
digitalWrite(RedLed, HIGH);
for (int i = 1; i < 200; i++) {
digitalWrite(SoundPin, HIGH); // set the pin HIGH
delayMicroseconds(2000); // wait for a bit
digitalWrite(SoundPin, LOW); // set the pin LOW
delayMicroseconds(2000); // wait for a bit
}
delay(2000);
digitalWrite(RedLed, LOW);
}