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added PF575_I2C_8LED_LM35/PF575_I2C_8LED_LM35

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Johannes Findeisen 2015-09-24 01:40:51 +02:00
commit ccd00ce520
1 changed files with 69 additions and 0 deletions
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PF575_I2C_8LED_LM35/PF575_I2C_8LED_LM35.ino Normal file
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#include <Wire.h>
// Set I2C address
int address = 0x20;
int samples = 2;
int collectDelay = 1000;
int ledPin = 13;
int tempPin = 0;
float tempC = 0;
void setup() {
pinMode(ledPin, OUTPUT);
Wire.begin();
pf575_write(word(B11111111,B11111111));
delay(200);
pf575_write(word(B00000000,B11111111));
delay(200);
pf575_write(word(B11111111,B11111111));
delay(200);
pf575_write(word(B00000000,B11111111));
delay(200);
pf575_write(word(B11111111,B11111111));
delay(1000);
}
void loop() {
tempC = 0;
for(int i = 0; i <= (samples - 1); i++) {
tempC = tempC + ((5.0 * analogRead(tempPin) * 100.0) / 1024.0);
digitalWrite(ledPin, HIGH);
delay((collectDelay / 2));
digitalWrite(ledPin, LOW);
delay((collectDelay / 2));
}
tempC = tempC / (float)samples;
if(tempC > 21) {
pf575_write(word(B11111110,B11111111));
}
if(tempC > 23) {
pf575_write(word(B11111100,B11111111));
}
if(tempC > 25) {
pf575_write(word(B11111000,B11111111));
}
if(tempC > 27) {
pf575_write(word(B11110000,B11111111));
}
if(tempC > 29) {
pf575_write(word(B11100000,B11111111));
}
if(tempC > 31) {
pf575_write(word(B11000000,B11111111));
}
if(tempC > 33) {
pf575_write(word(B10000000,B11111111));
}
if(tempC > 35) {
pf575_write(word(B00000000,B11111111));
}
}
void pf575_write(uint16_t data) {
Wire.beginTransmission(address);
Wire.write(highByte(data));
Wire.write(lowByte(data));
Wire.endTransmission();
}