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

VoltAlerter.cpp@23:fd5a5a9f30bc, 2015-10-16 (annotated)

Committer:
Bobty
Date:
Fri Oct 16 09:07:04 2015 +0000
Revision:
23:fd5a5a9f30bc
Parent:
10:72eb217def1f 
Added index.html file to project for completeness

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Bobty 10:72eb217def1f 1 // Detect stat of Volt-Alerter
Bobty 10:72eb217def1f 2 // Device produces a square wave when voltage detected
Bobty 10:72eb217def1f 3 // Cycle time of square wave around 100ms
Bobty 10:72eb217def1f 4 // Rob Dobson, 2015
Bobty 10:72eb217def1f 5
Bobty 10:72eb217def1f 6 #include "VoltAlerter.h"
Bobty 10:72eb217def1f 7
Bobty 10:72eb217def1f 8 VoltAlerter::VoltAlerter(PinName pinName) :
Bobty 10:72eb217def1f 9 _inPin(pinName, PullUp)
Bobty 10:72eb217def1f 10 {
Bobty 10:72eb217def1f 11 _curPinState = 0;
Bobty 10:72eb217def1f 12 _consecutiveLows = 0;
Bobty 10:72eb217def1f 13 }
Bobty 10:72eb217def1f 14
Bobty 10:72eb217def1f 15 void VoltAlerter::Service()
Bobty 10:72eb217def1f 16 {
Bobty 10:72eb217def1f 17 // Check pin
Bobty 10:72eb217def1f 18 if (!_inPin)
Bobty 10:72eb217def1f 19 {
Bobty 10:72eb217def1f 20 _curPinState = 1;
Bobty 10:72eb217def1f 21 _consecutiveLows = 0;
Bobty 10:72eb217def1f 22 return;
Bobty 10:72eb217def1f 23 }
Bobty 10:72eb217def1f 24
Bobty 10:72eb217def1f 25 // Only set state low if we get X consecutive lows
Bobty 10:72eb217def1f 26 _consecutiveLows++;
Bobty 10:72eb217def1f 27 if (_consecutiveLows >= CONSECUTIVE_LOWS_REQD_FOR_LOW)
Bobty 10:72eb217def1f 28 {
Bobty 10:72eb217def1f 29 _curPinState = 0;
Bobty 10:72eb217def1f 30 // The following is just to ensure the int doesn't overflow
Bobty 10:72eb217def1f 31 _consecutiveLows = CONSECUTIVE_LOWS_REQD_FOR_LOW;
Bobty 10:72eb217def1f 32 }
Bobty 10:72eb217def1f 33 }
Bobty 10:72eb217def1f 34