Since you will have a lot of logic to control the valves and such, it would seem best to move the code to get the temperatures to another file. I think something like below should give you close to what you want. The temperatures are put into 3 arrays, one for each bus, rather than one, but you probably could get them in to one array if you really want that. I only have 3 sensors, so I’m simulating 3 sets of sensors. Anyway, here’s what I came up with.
The Dallas.h file,
#include "Particle.h"
void getTemperatures(float temps[], int tempsCount, int pin, int select);
The Dallas.cpp file,
#include "Dallas.h"
#include "OneWire/OneWire.h"
double celsius, fahrenheit;
byte addrs0[3][8] = {{0x28, 0x1B, 0x1C, 0xE3, 0x03, 0x0, 0x0, 0xC5}, {0x28, 0x8, 0x56, 0xE3, 0x3, 0x0, 0x0, 0x93}, {0x28, 0xD, 0xD3, 0xE2, 0x3, 0x0, 0x0, 0xEE}};
byte addrs1[3][8] = {{0x28, 0x1B, 0x1C, 0xE3, 0x03, 0x0, 0x0, 0xC5}, {0x28, 0x8, 0x56, 0xE3, 0x3, 0x0, 0x0, 0x93}, {0x28, 0xD, 0xD3, 0xE2, 0x3, 0x0, 0x0, 0xEE}};
byte addrs2[3][8] = {{0x28, 0x1B, 0x1C, 0xE3, 0x03, 0x0, 0x0, 0xC5}, {0x28, 0x8, 0x56, 0xE3, 0x3, 0x0, 0x0, 0x93}, {0x28, 0xD, 0xD3, 0xE2, 0x3, 0x0, 0x0, 0xEE}};
void getTemperatures(float temps[], int tempsCount, int pin, int select) {
OneWire ds = OneWire(pin);
ds.reset();
ds.skip(); // Make all devices start the temperature conversion
ds.write(0x44, 1); // tell it to start a conversion, with parasite power on at the end (pass 0 for second argument if using powered mode)
delay(1000); // wait 1 sec for conversion
ds.reset();
for (int i=0; i<tempsCount; i++) {
switch (select) {
case 0:
ds.select(addrs0[i]);
break;
case 1:
ds.select(addrs1[i]);
break;
case 2:
ds.select(addrs2[i]);
break;
}
ds.write(0xBE,0);
byte data0 = ds.read();
byte data1 = ds.read();
ds.reset();
int16_t raw = (data1 << 8) | data0;
celsius = (float)raw * 0.0625;
fahrenheit = celsius * 1.8 + 32.0;
temps[i] = fahrenheit;
}
}
The main .ino file,
// This #include statement was automatically added by the Particle IDE.
#include "Dallas.h"
float T1, T2, T3, T4, T5, T6, T7, T8, T9;
float* temps1[] = {&T1, &T2, &T3}; // group sensors by which pin they're connected to
float* temps2[] = {&T4, &T5, &T6};
float* temps3[] = {&T7, &T8, &T9};
void setup() {
Serial.begin(9600);
delay(3000);
}
void loop() {
getTemperatures(*temps1, 3, D4, 0); // the last argument is used to select which array of addresses is used in the Dallas.cpp file
getTemperatures(*temps2, 3, D4, 1);
getTemperatures(*temps3, 3, D4, 2);
if (T7>50) {
Serial.printf(" T1 = %.1f T2 = %.1f T3 = %.1f", T1, T2, T3);
Serial.println();
Serial.printf(" T4 = %.1f T5 = %.1f T6 = %.1f", T4, T5, T6);
Serial.println();
Serial.printf(" T7 = %.1f T8 = %.1f T9 = %.1f", T7, T8, T9);
Serial.println();
Serial.println();
}
delay(10000);
}
The if(T7>50) block is just there to test whether I was getting the correct readings, and to show that you can use your variable names directly to get the temperatures.
(Specialist needed)
