Rob Dobson / RdGasUseMonitor

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

GasUseCounter.h@23:fd5a5a9f30bc, 2015-10-16 (annotated)

Committer:
Bobty
Date:
Fri Oct 16 09:07:04 2015 +0000
Revision:
23:fd5a5a9f30bc
Parent:
20:7933076df5af 
Added index.html file to project for completeness

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Bobty 5:5bccf48799d4 1 #ifndef __GASUSECOUNTER__H
Bobty 5:5bccf48799d4 2 #define __GASUSECOUNTER__H
Bobty 5:5bccf48799d4 3 #include "mbed.h"
Bobty 5:5bccf48799d4 4 #include "PulsePin.h"
Bobty 5:5bccf48799d4 5 #include "SDFileSystem.h"
Bobty 20:7933076df5af 6 #include "Logger.h"
Bobty 5:5bccf48799d4 7
Bobty 5:5bccf48799d4 8 const int MAX_GAS_COUNT_STR_LEN = 50;
Bobty 5:5bccf48799d4 9 const int MAX_PULSES_BEFORE_STORE_NV = 1; // Store at each pulse
Bobty 5:5bccf48799d4 10
Bobty 5:5bccf48799d4 11 class GasUseCounter
Bobty 5:5bccf48799d4 12 {
Bobty 5:5bccf48799d4 13 public:
Bobty 5:5bccf48799d4 14 // Constructor
Bobty 20:7933076df5af 15 GasUseCounter(const char* gasUseFilename1, const char* gasUseFilename2, DigitalIn& gasPulsePin, Logger &logger, Mutex &sdCardMutex) :
Bobty 20:7933076df5af 16 _gasPulsePin(gasPulsePin), _logger(logger), _sdCardMutex(sdCardMutex)
Bobty 5:5bccf48799d4 17 {
Bobty 19:0367cb46d003 18 _gasUseFilename1 = gasUseFilename1;
Bobty 19:0367cb46d003 19 _gasUseFilename2 = gasUseFilename2;
Bobty 5:5bccf48799d4 20 _lastWrittenGasCount = 0;
Bobty 5:5bccf48799d4 21 _pulseDetector = new PulsePin(_gasPulsePin, false, 200);
Bobty 5:5bccf48799d4 22 }
Bobty 5:5bccf48799d4 23
Bobty 5:5bccf48799d4 24 // Init (get count from NV)
Bobty 5:5bccf48799d4 25 void Init();
Bobty 5:5bccf48799d4 26
Bobty 5:5bccf48799d4 27 // Callback from web server to handle getting current gas count
Bobty 5:5bccf48799d4 28 char* getGasUseCallback(char* cmdStr, char* argStr);
Bobty 5:5bccf48799d4 29
Bobty 5:5bccf48799d4 30 // Service function to detect pulses
Bobty 5:5bccf48799d4 31 bool Service();
Bobty 5:5bccf48799d4 32
Bobty 5:5bccf48799d4 33 // Read/Write current gas count
Bobty 5:5bccf48799d4 34 void GetGasCountFromSD();
Bobty 5:5bccf48799d4 35 void WriteGasCountToSD();
Bobty 5:5bccf48799d4 36
Bobty 5:5bccf48799d4 37 // Get Count
Bobty 5:5bccf48799d4 38 int GetCount()
Bobty 5:5bccf48799d4 39 {
Bobty 5:5bccf48799d4 40 return _pulseDetector->GetPulseCount();
Bobty 5:5bccf48799d4 41 }
Bobty 5:5bccf48799d4 42
Bobty 5:5bccf48799d4 43 // Set Count
Bobty 5:5bccf48799d4 44 void SetCount(int gasUseCount)
Bobty 5:5bccf48799d4 45 {
Bobty 5:5bccf48799d4 46 _pulseDetector->SetPulseCount(gasUseCount);
Bobty 5:5bccf48799d4 47 WriteGasCountToSD();
Bobty 5:5bccf48799d4 48 }
Bobty 5:5bccf48799d4 49
Bobty 5:5bccf48799d4 50 // Get inter-pulse time
Bobty 5:5bccf48799d4 51 int GetPulseRateMs()
Bobty 5:5bccf48799d4 52 {
Bobty 5:5bccf48799d4 53 return _pulseDetector->GetPulseRateMs();
Bobty 5:5bccf48799d4 54 }
Bobty 5:5bccf48799d4 55
Bobty 5:5bccf48799d4 56 private:
Bobty 5:5bccf48799d4 57 // Gas use filename for non-volatile
Bobty 19:0367cb46d003 58 const char* _gasUseFilename1;
Bobty 19:0367cb46d003 59 const char* _gasUseFilename2;
Bobty 5:5bccf48799d4 60 int _curGasCount;
Bobty 5:5bccf48799d4 61 int _lastWrittenGasCount;
Bobty 5:5bccf48799d4 62 char _gasCountStr [MAX_GAS_COUNT_STR_LEN];
Bobty 5:5bccf48799d4 63 DigitalIn& _gasPulsePin;
Bobty 5:5bccf48799d4 64 PulsePin* _pulseDetector;
Bobty 20:7933076df5af 65 Logger &_logger;
Bobty 20:7933076df5af 66 Mutex &_sdCardMutex;
Bobty 5:5bccf48799d4 67 };
Bobty 5:5bccf48799d4 68
Bobty 5:5bccf48799d4 69
Bobty 5:5bccf48799d4 70
Bobty 5:5bccf48799d4 71
Bobty 5:5bccf48799d4 72 #endif