Margulan Bakenov / Mbed 2 deprecated P2P_temp

Use Seeeduino Arch(or Arch Pro) NFC Shield to exchange NDEF messages with Android 4.0

Dependencies:   PN532 mbed

Fork of PN532_P2P by Yihui Xiong

Code for NFC breakout board by Elechouse to communicate with Android phone

main.cpp@2:367b193b7540, 2014-04-08 (annotated)

Committer:
Margulan
Date:
Tue Apr 08 18:55:37 2014 +0000
Revision:
2:367b193b7540
Parent:
1:f228fdc41598 
ndef

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yihui 0:21ac4fe1ccf8 1 #include "mbed.h"
yihui 1:f228fdc41598 2 #include "PN532_SPI.h"
yihui 1:f228fdc41598 3 #include "snep.h"
yihui 1:f228fdc41598 4 #include "NdefMessage.h"
Margulan 2:367b193b7540 5 #include "NdefRecord.h"
yihui 0:21ac4fe1ccf8 6
Margulan 2:367b193b7540 7 InterruptIn irq(PTD5);
Margulan 2:367b193b7540 8 AnalogIn LM35(PTC2);
Margulan 2:367b193b7540 9
Margulan 2:367b193b7540 10 #define LOG(args...) pc.printf(args)//LOG of connection
Margulan 2:367b193b7540 11 SPI spi(PTD2, PTD3, PTC5); // SPI(mosi, miso, clk)
Margulan 2:367b193b7540 12 PN532_SPI pn532spi(spi, PTD0); // SPI (ss)
Margulan 2:367b193b7540 13 Serial pc(USBTX, USBRX); //serial connection to PC
Margulan 2:367b193b7540 14 DigitalOut led1(LED_RED); //digital output
Margulan 2:367b193b7540 15 DigitalOut led2(LED_GREEN); //indicators
yihui 0:21ac4fe1ccf8 16
Margulan 2:367b193b7540 17 SNEP nfc(pn532spi); //simple NDEF Exchange Protocol
yihui 1:f228fdc41598 18 uint8_t ndefBuf[128];
yihui 0:21ac4fe1ccf8 19
yihui 0:21ac4fe1ccf8 20 int main()
Margulan 2:367b193b7540 21 {
Margulan 2:367b193b7540 22 float temp; //measured temperature
Margulan 2:367b193b7540 23 while(1){temp=LM35.read();
Margulan 2:367b193b7540 24 #if 1 //initiator mode: starts connection with Android phone and
Margulan 2:367b193b7540 25 //sends NDEF message (text, url, MimeMedia or Application package)
Margulan 2:367b193b7540 26 led1=1; //switch off RGB LED
Margulan 2:367b193b7540 27 led2=1;
Margulan 2:367b193b7540 28
Margulan 2:367b193b7540 29 LOG("\rBring close an NFC-enabled phone\n");
Margulan 2:367b193b7540 30 int msgSize = nfc.read(ndefBuf, sizeof(ndefBuf));
Margulan 2:367b193b7540 31 if (msgSize > 0) {
Margulan 2:367b193b7540 32 NdefMessage msg = NdefMessage(ndefBuf, msgSize);
Margulan 2:367b193b7540 33 LOG("\r Connection is successful.\n");
Margulan 2:367b193b7540 34 int recordCount = msg.getRecordCount();
Margulan 2:367b193b7540 35 for (int i = 0; i < recordCount; i++)
Margulan 2:367b193b7540 36 {
Margulan 2:367b193b7540 37 LOG("\r NDEF Record %d\n",i+1);
Margulan 2:367b193b7540 38 NdefRecord record = msg.getRecord(i);
Margulan 2:367b193b7540 39 LOG("\r TNF: %u", record.getTnf());
Margulan 2:367b193b7540 40 LOG("\n\r Type: %s", record.getType());
Margulan 2:367b193b7540 41
Margulan 2:367b193b7540 42 // The TNF and Type should be used to determine how your application processes the payload
Margulan 2:367b193b7540 43 int payloadLength = record.getPayloadLength();
Margulan 2:367b193b7540 44 uint8_t payload[payloadLength];
Margulan 2:367b193b7540 45 record.getPayload(payload);
Margulan 2:367b193b7540 46
Margulan 2:367b193b7540 47 // Force the data into a String (might work depending on the content)
Margulan 2:367b193b7540 48 string payloadAsString = "";
Margulan 2:367b193b7540 49 for (int c = 0; c < payloadLength; c++) {
Margulan 2:367b193b7540 50 payloadAsString += (char)payload[c];
Margulan 2:367b193b7540 51 }
Margulan 2:367b193b7540 52 if (payloadLength > temp*330){
Margulan 2:367b193b7540 53 led2=0;//scenario 3
Margulan 2:367b193b7540 54 LOG("\r\nTemperature is normal");
Margulan 2:367b193b7540 55 wait(3);
Margulan 2:367b193b7540 56 led2=1;
Margulan 2:367b193b7540 57 }
Margulan 2:367b193b7540 58 else{led1=0;
Margulan 2:367b193b7540 59 LOG("\r\nTemperature is too high");
Margulan 2:367b193b7540 60 wait(2);
Margulan 2:367b193b7540 61 led1=1;}
Margulan 2:367b193b7540 62 LOG("\n\r Received message '%s'\n", payloadAsString);
Margulan 2:367b193b7540 63 LOG("\r Command length %d\n", payloadLength);
Margulan 2:367b193b7540 64 printf("\r Temperature %.2f C\n", temp*330);
Margulan 2:367b193b7540 65 }
Margulan 2:367b193b7540 66
Margulan 2:367b193b7540 67 } else {
Margulan 2:367b193b7540 68 LOG("\rConnection failed. Try again.\n");
Margulan 2:367b193b7540 69 led1=0;
Margulan 2:367b193b7540 70 wait(2);
Margulan 2:367b193b7540 71 }
yihui 1:f228fdc41598 72 #endif
Margulan 2:367b193b7540 73 led1=1;
Margulan 2:367b193b7540 74 led2=1;
Margulan 2:367b193b7540 75 wait(2); //polling cycle is 2 sec
Margulan 2:367b193b7540 76 }
Margulan 2:367b193b7540 77 }