//============== fonctions à ne pas modifier ==============================
</pre>
===récepteur avec NeoPixel===
<pre>
#include <VirtualWire.h>
#include <Adafruit_NeoPixel.h>
#define BUTTON_PIN 2 // Digital IO pin connected to the button. This will be
// driven with a pull-up resistor so the switch should
// pull the pin to ground momentarily. On a high -> low
// transition the button press logic will execute.
#define PIXEL_PIN 8 // Digital IO pin connected to the NeoPixels.
#define RADIO_PIN 3 // broche DATA du récepteur RF
#define PIXEL_COUNT 8 //
#define NUMVALUES 8
// message reçu.
int msg[NUMVALUES];
float tempValue = 0;
float humidityValue = 0;
int luxValue = 0;
float hygrometryValue = 0;
// float sensValues[NUMVALUES];
// Parameter 1 = number of pixels in strip, neopixel stick has 8
// Parameter 2 = pin number (most are valid)
// Parameter 3 = pixel type flags, add together as needed:
// NEO_RGB Pixels are wired for RGB bitstream
// NEO_GRB Pixels are wired for GRB bitstream, correct for neopixel stick
// NEO_KHZ400 400 KHz bitstream (e.g. FLORA pixels)
// NEO_KHZ800 800 KHz bitstream (e.g. High Density LED strip), correct for neopixel stick
Adafruit_NeoPixel strip = Adafruit_NeoPixel(PIXEL_COUNT, PIXEL_PIN, NEO_GRB + NEO_KHZ800);
bool oldState = HIGH;
int showType = 0;
void setup() {
Serial.begin(9600);
vw_setup(2000); // Bits par seconde
vw_set_rx_pin(RADIO_PIN); // broche DATA du récepteur
vw_rx_start();
Serial.println("Virtual wire started");
pinMode(BUTTON_PIN, INPUT_PULLUP);
strip.begin();
strip.show(); // Initialize all pixels to 'off'
}
void loop() {
// Get current button state.
bool newState = digitalRead(BUTTON_PIN);
uint8_t buf[VW_MAX_MESSAGE_LEN];
uint8_t buflen = VW_MAX_MESSAGE_LEN;
// Check if state changed from high to low (button press).
if (newState == LOW && oldState == HIGH) {
// Short delay to debounce button.
delay(20);
// Check if button is still low after debounce.
newState = digitalRead(BUTTON_PIN);
if (newState == LOW) {
showType++;
if (showType > 9)
showType=0;
Serial.print("type : ");
Serial.println(showType);
startShow(showType);
}
}
// Set the last button state to the old state.
oldState = newState;
if (vw_get_message(buf, &buflen)) // On test afin de savoir si un message est reçu.
{
int i;
int ii;
String ficelle = "";
for (i = 0; i < buflen; i++)
{
delay(25);
//Serial.write(buf[i]); // msg lettre par lettre. buf[4] == 5ème lettre envoyée
//Serial.print(" :");
//for (ii=0; ii < NUMVALUES; ii++)
//{
//ficelle += buf[i];
ficelle += bufDecipher(buf[i]);
//}
}
ficelle[buflen] = '\0'; // finir l'array par un NULL en cas de longueur variable
//Serial.print("ficelle : ");
//Serial.println(ficelle); // On saute une ligne pour faciliter la lecture
Serial.print("Temp value : ");
tempValue=getTempValue(ficelle);
Serial.println(tempValue);
Serial.print("Humidity value : " );
humidityValue=getHumidityValue(ficelle);
Serial.println(humidityValue);
Serial.print("Lux value : ");
Serial.println(getLuxValue(ficelle));
}
}
//============== FIN DU LOOP ==============================
//============== emplacements de vos fonctions ==============================
//============== fonctions à ne pas modifier ==============================
float getTempValue(String ficelle){
String myBuf=ficelle.substring(0,4);
//Serial.print("Temp buffer : ");
//Serial.println(myBuf);
int ii;
float tempValue=0;
float mulValue=0;
mulValue=bufToFloat(myBuf[0])*10;
//Serial.println(mulValue);
tempValue+=mulValue;
tempValue+=bufToFloat(myBuf[1]);
//Serial.println(bufToFloat(myBuf[1]));
//Serial.println(tempValue);
mulValue=bufToFloat(myBuf[2]);
mulValue/=10;
//Serial.println(mulValue);
tempValue+=mulValue;
//Serial.println(tempValue);
mulValue=bufToFloat(myBuf[3]);
mulValue/=100;
tempValue+=mulValue;
//Serial.println(tempValue);
return tempValue;
}
float getHumidityValue(String ficelle){
String myBuf=ficelle.substring(4,8);
int ii;
float value=0;
float mulValue=2;
mulValue=bufToFloat(myBuf[0])*10;
value+=mulValue;
value+=bufToFloat(myBuf[1]);
mulValue=bufToFloat(myBuf[2]);
mulValue/=10;
value+=mulValue;
mulValue=bufToFloat(myBuf[3]);
mulValue/=100;
value+=mulValue;
return value;
}
int getLuxValue(String ficelle){
String myBuf=ficelle.substring(8,12);
int ii;
float luxValue=0;
float mulValue=0;
mulValue=bufToFloat(myBuf[0])*1000;
luxValue+=mulValue;
luxValue+=bufToFloat(myBuf[1])*100;
luxValue+=bufToFloat(myBuf[2])*10;
luxValue+=bufToFloat(myBuf[3]);
return luxValue;
// return transfrome cequi suit en commentaires
Serial.print("Lux buffer : ");
Serial.println(myBuf);
Serial.print("Lux value : ");
Serial.println(luxValue);
return luxValue;
}
int bufToFloat(char src)
{
float sortie=0;
switch(src){
case '0':
break;
case '1':
sortie+=1;
break;
case '2':
sortie+=2;
break;
case '3':
sortie+=3;
break;
case '4':
sortie+=4;
break;
case '5':
sortie+=5;
break;
case '6':
sortie+=6;
break;
case '7':
sortie+=7;
break;
case '8':
sortie+=8;
case '9':
sortie+=9;
break;
}
return sortie;
}
char bufDecipher(char alpha)
{
char nombre=0;
switch(alpha){
case 'a':
nombre = '0';
break;
case 'b':
nombre = '1';
break;
case 'c':
nombre = '2';
break;
case 'd':
nombre = '3';
break;
case 'e':
nombre = '4';
break;
case 'f':
nombre = '5';
break;
case 'g':
nombre = '6';
break;
case 'h':
nombre = '7';
break;
case 'i':
nombre = '8';
break;
case 'j':
nombre = '9';
break;
}
return char(nombre);
}
//============== fonctions liées à la librairie NeoPixel ==============================
//============== ne pas modifier ici ==============================
void startShow(int i) {
switch(i){
case 0: colorWipe(strip.Color(0, 0, 0), 50); // Black/off
break;
case 1: colorWipe(strip.Color(255, 0, 0), 50); // Red
break;
case 2: colorWipe(strip.Color(0, 255, 0), 50); // Green
break;
case 3: colorWipe(strip.Color(0, 0, 255), 50); // Blue
break;
case 4: theaterChase(strip.Color(127, 127, 127), 50); // White
break;
case 5: theaterChase(strip.Color(127, 0, 0), 50); // Red
break;
case 6: theaterChase(strip.Color( 0, 0, 127), 50); // Blue
break;
case 7: rainbow(20);
break;
case 8: rainbowCycle(20);
break;
case 9: theaterChaseRainbow(50);
break;
}
}
// Fill the dots one after the other with a color
void colorWipe(uint32_t c, uint8_t wait) {
for(uint16_t i=0; i<strip.numPixels(); i++) {
strip.setPixelColor(i, c);
strip.show();
delay(wait);
}
}
void rainbow(uint8_t wait) {
uint16_t i, j;
for(j=0; j<256; j++) {
for(i=0; i<strip.numPixels(); i++) {
strip.setPixelColor(i, Wheel((i+j) & 255));
}
strip.show();
delay(wait);
}
}
// Slightly different, this makes the rainbow equally distributed throughout
void rainbowCycle(uint8_t wait) {
uint16_t i, j;
for(j=0; j<256*5; j++) { // 5 cycles of all colors on wheel
for(i=0; i< strip.numPixels(); i++) {
strip.setPixelColor(i, Wheel(((i * 256 / strip.numPixels()) + j) & 255));
}
strip.show();
delay(wait);
}
}
//Theatre-style crawling lights.
void theaterChase(uint32_t c, uint8_t wait) {
for (int j=0; j<10; j++) { //do 10 cycles of chasing
for (int q=0; q < 3; q++) {
for (int i=0; i < strip.numPixels(); i=i+3) {
strip.setPixelColor(i+q, c); //turn every third pixel on
}
strip.show();
delay(wait);
for (int i=0; i < strip.numPixels(); i=i+3) {
strip.setPixelColor(i+q, 0); //turn every third pixel off
}
}
}
}
//Theatre-style crawling lights with rainbow effect
void theaterChaseRainbow(uint8_t wait) {
for (int j=0; j < 256; j++) { // cycle all 256 colors in the wheel
for (int q=0; q < 3; q++) {
for (int i=0; i < strip.numPixels(); i=i+3) {
strip.setPixelColor(i+q, Wheel( (i+j) % 255)); //turn every third pixel on
}
strip.show();
delay(wait);
for (int i=0; i < strip.numPixels(); i=i+3) {
strip.setPixelColor(i+q, 0); //turn every third pixel off
}
}
}
}
// Input a value 0 to 255 to get a color value.
// The colours are a transition r - g - b - back to r.
uint32_t Wheel(byte WheelPos) {
WheelPos = 255 - WheelPos;
if(WheelPos < 85) {
return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3);
}
if(WheelPos < 170) {
WheelPos -= 85;
return strip.Color(0, WheelPos * 3, 255 - WheelPos * 3);
}
WheelPos -= 170;
return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
}
</pre>
