[WIP] NFC car starter by MrStein

Raymond

This looks fantastic. I'm curious, @MrStein, ou wrote "The keys are currently in this version to avoid problems related to the anti-starter. It will be neutralized (bypassed) later on." in the first video. Did you insert the keys in the "On" state in your car before scanning your ring? Great project!

MrStein

Now, I use a deported antenna to connect to the neiman (were you put the key) the immo chip.
this is not the best solution but it s difficule to emulate the immo signal so it's the easiest ;)
I had make some "how to" for connection between the neiman & the board, and how to supply. For now they are on my youtube (mrstein) but in french..
I will make another video for bypass the immo ;)

maybe if I have the time I will make a instructable for all (making the board, connection, bypass), but as you can read, my english is not realy good for translate a full text ^^"

Raymond

That's very cool. English would be great for everyone, but I can read French just as well. Keep it up! Can't wait for your next update ;) Lâche pas la patate!!!

MrStein

The code, with sleep mode and interrupt. Work fine with the board (you have to plug a 10Kohms resistor 0603 cms between the +5v and int1, it will be rectifed with another version)

http://fr.sourcepod.com/pwdatf37-45351

/*
 Code par MrSTEIN (mrstein(at)hotmail.fr)
 v1.0/ 01/10/2014
 compatible avec NFC starter V3.0

 configuration harware:
 interruptBRAKE 3
 BRAKE 4
 buzzer 5
 RelaisStarter 6
 RelaisContact_OFF 7  
 RelaisContact_ON 8
 LED 13    

 informations hardware:
 1flash: CONTACT
 2flash: STARTER
 1buzz: SLEEP
 2buzz: STOP
 */    

  #include <Wire.h>
  #include <PN532_I2C.h>
  #include <PN532.h>
  #include <avr/sleep.h>
  #include <avr/power.h>


//definition des clefs  
String CLEF1 = "xxxxxxxxxxxxx";
String CLEF2 = "xxxxxxxxxxxxx";

#define interRelais 500 // temps entre contact et starter
#define tempsStarter 500 // temps starter ON 

//definition des sorties, valable pour la v3  
#define interruptBRAKE 3
#define BRAKE 4
#define buzzer 5
#define RelaisStarter 6
#define RelaisContact_OFF 7  
#define RelaisContact_ON 8 
#define LED 13  

PN532_I2C pn532i2c(Wire);
PN532 nfc(pn532i2c);
boolean etatContact = false;
boolean etatBRAKE = false;


//*******************fonction buzzer
void fct_FLASH(int pulse){
  for(int i=0; i<pulse; i++){
  digitalWrite(LED, HIGH);
  delay(200);
  digitalWrite(LED, LOW);
  delay(200);
}
}  

//*******************fonction buzzer
void fct_BUZZ(int pulse){
  for(int i=0; i<pulse; i++){
  digitalWrite(buzzer, HIGH);
  delay(200);
  digitalWrite(buzzer, LOW);
  delay(200);
}
}

//*******************fonction contact
void fct_contact(){
fct_FLASH(1);
digitalWrite(RelaisContact_OFF, HIGH);
delay(500);
digitalWrite(RelaisContact_OFF, LOW);  
etatContact = true;
}
 
//*******************fonction starter
void fct_starter(){
fct_FLASH(2);
digitalWrite(RelaisStarter, HIGH);
delay(tempsStarter);
digitalWrite(RelaisStarter, LOW);
}

//*******************fonction STOP, interrupt sur BRAKE
void fct_STOP(){
delay(1000);
if(!digitalRead(BRAKE)){
fct_BUZZ(2); 
digitalWrite(RelaisContact_OFF, HIGH);
delay(500);
digitalWrite(RelaisContact_OFF, LOW); 
Serial.println("STOP");
etatBRAKE = true;
etatContact = false;

while(!digitalRead(BRAKE)){delay(500);}
etatBRAKE = false;
Serial.println("FREIN OFF");
}
else fct_DODO();
}

//*******************fonction lecture de tag
String fct_lecture(){
  String Received;
  boolean success;
  uint8_t IdReceived[] = { 0, 0, 0, 0, 0, 0, 0 }; 
  uint8_t Id_Length; 

if (success = nfc.readPassiveTargetID(PN532_MIFARE_ISO14443A, &IdReceived[0],&Id_Length)){
for (uint8_t i=0; i < Id_Length; i++)
 Received += String(IdReceived[i], HEX); 
return(Received);
}
else
return(0);
}

//*******************fonction MODE sleep
void fct_DODO(){
 delay(1000);
 fct_BUZZ(1); 
 Serial.println("ARDUINO entre en mode sleep");
attachInterrupt(1,REVEIL, LOW);
delay(100);
  set_sleep_mode(SLEEP_MODE_PWR_DOWN); 
  sleep_enable();
  sleep_mode();
Serial.println("ARDUINO reveil");
fct_STOP();
}

//*******************fonction reveil
void REVEIL(void){
detachInterrupt(1);
}

void setup(void) {
  pinMode(buzzer,OUTPUT);
  pinMode(RelaisStarter,OUTPUT);
  pinMode(RelaisContact_ON,OUTPUT);
  pinMode(RelaisContact_OFF,OUTPUT);  
  pinMode(LED,OUTPUT);
  digitalWrite(LED, LOW);
  digitalWrite(buzzer, LOW);
  pinMode(BRAKE,INPUT);  
  delay(100);
//if(!digitalRead(BRAKE))fct_STOP(); // en cas de reset forcé, securite
  Serial.begin(115200);
  Serial.println("start"); 
  nfc.begin();
  uint32_t versiondata = nfc.getFirmwareVersion(); 

  if (! versiondata) {
    Serial.println("erreur pn532");  
    while (1); // halt
}
  nfc.setPassiveActivationRetries(0xFF);
  nfc.SAMConfig();
Serial.println("CAR STARTER V1.0");  
}


void loop(void) {
String Received;
while(etatContact == false){
Serial.println("attente lecture pour contact"); 
Received=fct_lecture();

if ((Received == CLEF1 || Received == CLEF2)){  
Serial.println("Clef valide, contact");  
fct_contact();
delay(interRelais);
}
}

while(etatBRAKE == false){
Serial.println("attente lecture pour starter");   
if(digitalRead(BRAKE)) etatBRAKE = true;
Serial.println(digitalRead(BRAKE));
Received=fct_lecture();

if ((Received == CLEF1 || Received == CLEF2) ){ 
Serial.println("Clef valide, starter");
fct_starter();
}
}
delay(100);
if(etatBRAKE == true){
fct_DODO();
}
}

A video of the plugging in the car will come, maybe if I have some translation help I could make an instrutable.

edit: sorry, not a lot of comment (and in french), but I think it's not too difficult to understand.

Lafunamor

post your text on some collab tool in french and if I have some spare time I'll try to help you to translate it.

Techcaveman

Hey @MrStein this looks great! If I was still tech savvy like in high school I would love to do a home build! Seeing how I'm only a little tech savvy now, what's the odds of being able to buy one of these? I just got my hands on my NFC ring thanks @NFC-Ring-Team can't wait to integrate this into my day to day!

MrStein

You can make one with the eagle files if you know how solder the components (I will make a bill of material soon) ;)
Maybe I can give you a blank prototype board, but you still need to buy the components ;)

MrStein

here is the board finished:

Black jumper is for simulate the brake
blue&brown are supply
brown, blue & yellow/green are contact & starter.
I also make some videos for show how plug this device & how supply, bypass the immo,... (in french)
https://www.youtube.com/playlist?list=PLBiQyVl185A4OzemFMIH5aewKNF8k3Xg1
Part1: neiman connection
Part2: supply
Part3: bypass immo
Part4: the board explication & conception

Next video will be the brake connexion & global connection

DaStivi

Hi, any Update on this Project yet?

how do you unlock the doors of your car? did i missed this here anywhere?

i'm planning to implant an nfc tag in my hand... and really would like to unlock/start my car (Citroen) with the nfc tag too! :)

steve

MrStein

Hi steve !
Maybe a NFC ring is better than make an implant ;) A lot of implant are in 125khz, so my board cannot work at this frequency (it's 13.56Mhz-> NFC)
For the door I don't make any board but it's easy to make with the same board than the NFC starter one.

The starter project is finished for me, I need to make the last tutorial video (in french) and after that make a instructable.

Pierre

Lokki

I've got to agree with Pierre at the moment on implants - cool idea, but too difficult to upgrade and I don't think the tech is mature enough yet.

Laszlo

Hi,

there are 13.56MHz implants also

Lokki

Yes, they're available. Personally I don't think the technology is advanced far enough to warrant having a permanent implant.

MrStein

Well, I think nfc implant tag are only suitable for the animals identification..Not for the human.. But it's my opinion..

For the price, I have the same tag but in 125khz, I paid less than 1$ for one. I think this one is really expensive.

Techcaveman

@MrStein sorry for the very late reply. I would completely love a blank but being from the United states it wouldn't be very beneficial to send one. I would still love to buy one from the nfc store since they do have that in the US now. Maybe putting to together a kit for a build your own would be a good idea. With the added door unlock part that another person had mentioned. Just a thought.

This could be easier to make instructions for assembling for that then translating a complete build from scratch.

Would wiring into an old turn key be easier then a button start?

DaStivi

Any News on this Topic? Is There a buyable Kit or at least a pcb available?

MrStein

Here are the files :
http://www.partage-facile.com/0U65BW0G8V/atmega__v4.brd.html

Don't forget it's not a plug an play solution and you will need to make some operation for finish your NFC starter ;)

LoganFive

@MrStein I was wondering if the keyduimo can be powered off an "always powered" line iin my car and be low powered enough to not drain the battery?

MrStein

Hey Logan,
It's a good question, I currently make a tutorial for the doors opener and use a push button to start/stop the KeyDuino.
For the NFC starter, I use the temporary light (that allow 30s of supply to scan the ring/tag).

I don't know how long you can use a battery if you use like 150mA, but I think it's a bad idea to "always powered" something in your car ;)

How, just for your information, if you have any question/ rem related to keyduino; please sen them on the keyduino forum, so me and my friend can answer to your question :)
http://keyduino.forumsactifs.com/

Roman

@MrStein Excuse me, but where is the schema version 4? Links do not work.