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Merge pull request #92 from gizmocuz/master

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Modified WaterMeterPulseSensor Example
This commit is contained in:
Henrik Ekblad
2015-03-23 09:12:20 +01:00
parent 3f0ca1a7b3 93e8f2e107
commit 4bd3151ce6
1 changed files with 67 additions and 48 deletions
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libraries/MySensors/examples/WaterMeterPulseSensor/WaterMeterPulseSensor.ino
+67 -48
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@@ -13,15 +13,23 @@
#include <MySensor.h>
#define DIGITAL_INPUT_SENSOR 3 // The digital input you attached your sensor. (Only 2 and 3 generates interrupt!)
#define SENSOR_INTERRUPT DIGITAL_INPUT_SENSOR-2 // Usually the interrupt = pin -2 (on uno/nano anyway)
#define PULSE_FACTOR 1000 // Nummber of blinks per m3 of your meter (One rotation/liter)
#define SLEEP_MODE false // flowvalue can only be reported when sleep mode is false.
#define MAX_FLOW 40 // Max flow (l/min) value to report. This filetrs outliers.
#define INTERRUPT DIGITAL_INPUT_SENSOR-2 // Usually the interrupt = pin -2 (on uno/nano anyway)
#define CHILD_ID 5 // Id of the sensor child
#define MAX_FLOW 40 // Max flow (l/min) value to report. This filters outliers.
#define CHILD_ID 1 // Id of the sensor child
unsigned long SEND_FREQUENCY = 20000; // Minimum time between send (in milliseconds). We don't want to spam the gateway.
MySensor gw;
MyMessage flowMsg(CHILD_ID,V_FLOW);
MyMessage volumeMsg(CHILD_ID,V_VOLUME);
MyMessage lastCounterMsg(CHILD_ID,V_VAR1);
double ppl = ((double)PULSE_FACTOR)/1000; // Pulses per liter
volatile unsigned long pulseCount = 0;
@@ -31,108 +39,119 @@ boolean pcReceived = false;
unsigned long oldPulseCount = 0;
unsigned long newBlink = 0;
double oldflow = 0;
double volume;
double oldvolume;
unsigned long lastSend;
unsigned long lastPulse;
unsigned long currentTime;
boolean metric;
MyMessage flowMsg(CHILD_ID,V_FLOW);
MyMessage volumeMsg(CHILD_ID,V_VOLUME);
MyMessage pcMsg(CHILD_ID,V_VAR1);
double volume =0;
double oldvolume =0;
unsigned long lastSend =0;
unsigned long lastPulse =0;
void setup()
{
gw.begin(incomingMessage);
// Send the sketch version information to the gateway and Controller
gw.sendSketchInfo("Water Meter", "1.0");
gw.sendSketchInfo("Water Meter", "1.2");
// Register this device as Waterflow sensor
gw.present(CHILD_ID, S_WATER);
pulseCount = oldPulseCount = 0;
// Fetch last known pulse count value from gw
gw.request(CHILD_ID, V_VAR1);
attachInterrupt(INTERRUPT, onPulse, RISING);
lastSend = millis();
lastSend = lastPulse = millis();
attachInterrupt(SENSOR_INTERRUPT, onPulse, RISING);
}
void loop()
{
gw.process();
currentTime = millis();
unsigned long currentTime = millis();
// Only send values at a maximum frequency or woken up from sleep
bool sendTime = currentTime - lastSend > SEND_FREQUENCY;
if (pcReceived && (SLEEP_MODE || sendTime)) {
// New flow value has been calculated
if (SLEEP_MODE || (currentTime - lastSend > SEND_FREQUENCY))
{
lastSend=currentTime;
if (!pcReceived) {
//Last Pulsecount not yet received from controller, request it again
gw.request(CHILD_ID, V_VAR1);
return;
}
if (!SLEEP_MODE && flow != oldflow) {
oldflow = flow;
Serial.print("l/min:");
Serial.println(flow);
// Check that we dont get unresonable large flow value.
// could hapen when long wraps or false interrupt triggered
if (flow<((unsigned long)MAX_FLOW)) {
gw.send(flowMsg.set(flow, 2)); // Send flow value to gw
}
//Serial.print("l/min:");
//Serial.println(flow);
oldflow = flow;
}
// No Pulse count in 2min
// No Pulse count received in 2min
if(currentTime - lastPulse > 120000){
flow = 0;
}
// Pulse count has changed
if (pulseCount != oldPulseCount) {
gw.send(pcMsg.set(pulseCount)); // Send volumevalue to gw VAR1
double volume = ((double)pulseCount/((double)PULSE_FACTOR));
oldPulseCount = pulseCount;
Serial.print("pulsecount:");
Serial.println(pulseCount);
gw.send(lastCounterMsg.set(pulseCount)); // Send pulsecount value to gw in VAR1
double volume = ((double)pulseCount/((double)PULSE_FACTOR));
if (volume != oldvolume) {
gw.send(volumeMsg.set(volume, 3)); // Send volume value to gw
oldvolume = volume;
Serial.print("volume:");
Serial.println(volume, 3);
gw.send(volumeMsg.set(volume, 3)); // Send volume value to gw
}
}
lastSend = currentTime;
} else if (sendTime && !pcReceived) {
// No count received. Try requesting it again
gw.request(CHILD_ID, V_VAR1);
lastSend=currentTime;
}
if (SLEEP_MODE) {
gw.sleep(SEND_FREQUENCY);
}
}
void incomingMessage(const MyMessage &message) {
if (message.type==V_VAR1) {
pulseCount = oldPulseCount = message.getLong();
if (message.type==V_VAR1) {
unsigned long gwPulseCount=message.getULong();
pulseCount += gwPulseCount;
Serial.print("Received last pulse count from gw:");
Serial.println(pulseCount);
pcReceived = true;
}
}
void onPulse()
{
if (!SLEEP_MODE) {
{
if (!SLEEP_MODE)
{
unsigned long newBlink = micros();
unsigned long interval = newBlink-lastBlink;
lastPulse = millis();
if (interval<500000L) {
// Sometimes we get interrupt on RISING, 500000 = 0.5sek debounce ( max 120 l/min)
return;
if (interval!=0)
{
lastPulse = millis();
if (interval<500000L) {
// Sometimes we get interrupt on RISING, 500000 = 0.5sek debounce ( max 120 l/min)
return;
}
flow = (60000000.0 /interval) / ppl;
}
flow = (60000000.0 /interval) / ppl;
lastBlink = newBlink;
}
pulseCount++;
}