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hall_sender.ino
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hall_sender.ino
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/*
* Generic Sender code : Send a value (counter) over RF 433.92 mhz
* Fréquence : 433.92 mhz
* Protocole : homepi
* Licence : CC -by -sa
* Auteur : Yves Grange
* Version : 0.1
* Lase update : 10/10/2014
*
* Based on: Valentin CARRUESCO aka idleman and Manuel Esteban aka Yaug (http://manuel-esteban.com) work
*/
#define senderPin 12
long codeKit = 1000; // Your unique ID for your Arduino node
int BytesType[] = {1,0,1,0}; // Protocol Code: here it's 10d (1010b) can be what you want
int Bytes[30];
int BytesData[30];
boolean Timing = false; // Print timings on serial when eq to true
unsigned long CounterValue = 0;
int pin = 13;
void itob(unsigned long integer, int length)
{
for (int i=0; i<length; i++){
if ((integer / power2(length-1-i))==1){
integer-=power2(length-1-i);
Bytes[i]=1;
}
else Bytes[i]=0;
}
}
void itobCounter(unsigned long integer, int length)
{
for (int i=0; i<length; i++){
if ((integer / power2(length-1-i))==1){
integer-=power2(length-1-i);
BytesData[i]=1;
}
else BytesData[i]=0;
}
}
unsigned long power2(int power){ //gives 2 to the (power)
unsigned long integer=1;
for (int i=0; i<power; i++){
integer*=2;
}
return integer;
}
/**
* Create binary signal
**/
void buildSignal()
{
Serial.println(codeKit);
itob(codeKit, 14);
for(int j=0;j < 14; j++){
Serial.print(Bytes[j]);
}
Serial.println();
}
// Convert 0 in 01 and 1 in 10 (Manchester conversion)
void sendPair(bool b) {
if(b)
{
sendBit(true);
sendBit(false);
}
else
{
sendBit(false);
sendBit(true);
}
}
//Envois d'une pulsation (passage de l'etat haut a l'etat bas)
//1 = 310µs haut puis 1340µs bas
//0 = 310µs haut puis 310µs bas
void sendBit(bool b) {
if (b) {
digitalWrite(senderPin, HIGH);
delayMicroseconds(506); //305 orinally, but tweaked.
if (Timing) Serial.print("506 ");
digitalWrite(senderPin, LOW);
delayMicroseconds(2024); //1225 orinally, but tweaked.
if (Timing) Serial.print("2024 ");
}
else {
digitalWrite(senderPin, HIGH);
delayMicroseconds(506); //305 orinally, but tweaked.
if (Timing) Serial.print("506 ");
digitalWrite(senderPin, LOW);
delayMicroseconds(4301); //305 orinally, but tweaked.
if (Timing) Serial.print("4301 ");
}
}
/**
* Transmit data
* @param boolean positive : if the value you send is a positive or negative one
* @param long Counter : the value you want to send
**/
void transmit(boolean positive, unsigned long Counter)
{
int i;
itobCounter(Counter, 30);
// Send the unique ID of your Arduino node
for(i=0; i<14;i++)
{
sendPair(Bytes[i]);
}
// Send protocol type
for(int j = 0; j<4; j++)
{
sendPair(BytesType[j]);
}
// Send the flag to mark the value as positive or negative
sendPair(positive);
// Send value (ie your counter)
for(int j = 0; j<30; j++)
{
sendPair(BytesData[j]);
}
// Send the flag "End of the transmission"
digitalWrite(senderPin, HIGH);
if (Timing) Serial.print("506 ");
delayMicroseconds(506);
digitalWrite(senderPin, LOW);
if (Timing) Serial.print("8602 ");
delayMicroseconds(8602);
}
void setup()
{
pinMode(senderPin, OUTPUT);
pinMode(pin, OUTPUT);
Serial.begin(115200);
buildSignal();
attachInterrupt(0, blink, RISING);
}
void loop()
{
}
void blink()
{
digitalWrite(pin, true);
CounterValue += 1;
//Serial.print("Compteur : ");
//Serial.println(CounterValue);
transmit(true, CounterValue);
digitalWrite(pin, false);
transmit(true, CounterValue);
transmit(true, CounterValue);
}