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support for multiple external temperature sensors

This commit is contained in:
TrystanLea 2021-02-05 14:55:12 +00:00
parent 411d46a742
commit c2b34a3bb7
1 changed files with 13 additions and 7 deletions
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20
firmware/src/src.ino
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@ -62,6 +62,8 @@
units = C,C,%,V,p
*/
// -------------------------------------------------------------------------------------------------------------
#define EXTERNAL_TEMP_SENSORS 1 // Specify number of external temperature sensors that are connected
boolean debug=1; // Set to 1 to few debug serial output
boolean flash_led=0; // Flash LED after each sample (battery drain) default=0
@ -122,7 +124,7 @@ boolean DS18B20; // create
// https://github.com/openenergymonitor/emonhub/blob/emon-pi/configuration.md
typedef struct { // RFM RF payload datastructure
int temp;
int temp_external;
int temp_external[EXTERNAL_TEMP_SENSORS];
int humidity;
int battery;
unsigned long pulsecount;
@ -376,12 +378,14 @@ void loop()
for(int j=0;j<numSensors;j++) sensors.setResolution(allAddress[j], TEMPERATURE_PRECISION); // and set the a to d conversion resolution of each.
sensors.requestTemperatures(); // Send the command to get temperatures
dodelay(ASYNC_DELAY); //Must wait for conversion, since we use ASYNC mode
float temp=(sensors.getTempC(allAddress[0]));
digitalWrite(DS18B20_PWR, LOW);
if ((temp<125.0) && (temp>-40.0))
{
emonth.temp_external=(temp*10);
for(int j=0;j<EXTERNAL_TEMP_SENSORS;j++) {
float temp=(sensors.getTempC(allAddress[j]));
if ((temp<125.0) && (temp>-40.0)) {
emonth.temp_external[j]=(temp*10);
}
}
digitalWrite(DS18B20_PWR, LOW);
}
emonth.battery=int(analogRead(BATT_ADC)*0.0322); //read battery voltage, convert ADC to volts x10
@ -435,7 +439,9 @@ void loop()
Serial.print("temp:");Serial.print(emonth.temp); Serial.print(",");
if (DS18B20){
Serial.print("tempex:");Serial.print(emonth.temp_external); Serial.print(",");
for(int j=0;j<EXTERNAL_TEMP_SENSORS;j++) {
Serial.print("tempex");Serial.print(j);Serial.print(":");Serial.print(emonth.temp_external[j]); Serial.print(",");
}
}
if (SI7021_status){