Rob Dobson
Monitor for central heating system (e.g. 2zones+hw) Supports up to 15 temp probes (DS18B20/DS18S20) 3 valve monitors Gas pulse meter recording Use stand-alone or with nodeEnergyServer See http://robdobson.com/2015/09/central-heating-monitor
Dependencies: EthernetInterfacePlusHostname NTPClient Onewire RdWebServer SDFileSystem-RTOS mbed-rtos mbed-src
Diff: Thermometers.h
- Revision:
- 9:0e103c2f869a
- Child:
- 16:89778849e9f7
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Thermometers.h Sun Feb 22 11:57:12 2015 +0000
@@ -0,0 +1,42 @@
+// Handles Thermometers
+// Rob Dobson, 2015
+
+#ifndef Thermometers__H
+#define Thermometers__H
+
+#include "RdDS18B20.h"
+
+struct TemperatureValue
+{
+ time_t timeStamp;
+ char address[DS18B20::ONEWIRE_ADDR_STRLEN];
+ double tempInCentigrade;
+};
+
+class Thermometers
+{
+public:
+ Thermometers(int numTempSensorPins, const PinName tempSensorPins[], int serviceIntervalInMs);
+ void Init();
+ void Service();
+ int GetTemperatureValues(int maxTempValues, TemperatureValue* tempValues, int maxAgeInSecs);
+ static const int numSecondsBetweenThermReadings = 10;
+ static const int timeForThermReadingInSecs = 2;
+ static const int reGetThermometerAddressesAfterNumReadings = 100;
+ static const int MAX_ONEWIRE_BUSES = 1;
+ static const int MAX_THERMOMETERS = 8;
+
+private:
+ // Thermometer info
+ int _numTempSensorPins;
+ const PinName* _tempSensorPins;
+ int _numThermometerBuses;
+ DS18B20* _thermometerBuses[MAX_ONEWIRE_BUSES];
+ int _serviceIntervalInMs;
+
+ // Counters for state machine
+ int _countForThermReadings;
+ int _countForGetThermometerAddresses;
+};
+
+#endif