Optical pulse sensor
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Hello all,
I have a the following problem with my sensor. As soon as the last value is read from Domoticz (V_VAR1), it starts sending pulses to Domoticz without even the optical sensor being connected to Arduino.
Code:
/** * The MySensors Arduino library handles the wireless radio link and protocol * between your home built sensors/actuators and HA controller of choice. * The sensors forms a self healing radio network with optional repeaters. Each * repeater and gateway builds a routing tables in EEPROM which keeps track of the * network topology allowing messages to be routed to nodes. * * Created by Henrik Ekblad <henrik.ekblad@mysensors.org> * Copyright (C) 2013-2015 Sensnology AB * Full contributor list: https://github.com/mysensors/Arduino/graphs/contributors * * Documentation: http://www.mysensors.org * Support Forum: http://forum.mysensors.org * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * version 2 as published by the Free Software Foundation. * ******************************* * * REVISION HISTORY * Version 1.0 - Henrik EKblad * * DESCRIPTION * This sketch provides an example how to implement a distance sensor using HC-SR04 * Use this sensor to measure KWH and Watt of your house meeter * You need to set the correct pulsefactor of your meeter (blinks per KWH). * The sensor starts by fetching current KWH value from gateway. * Reports both KWH and Watt back to gateway. * * Unfortunately millis() won't increment when the Arduino is in * sleepmode. So we cannot make this sensor sleep if we also want * to calculate/report watt-number. * http://www.mysensors.org/build/pulse_power */ #include <SPI.h> #include <MySensor.h> #define DIGITAL_INPUT_SENSOR 3 // The digital input you attached your light sensor. (Only 2 and 3 generates interrupt!) #define SENSOR_INTERRUPT DIGITAL_INPUT_SENSOR-3 // Usually the interrupt = pin -2 (on uno/nano anyway) #define PULSE_FACTOR 1000 // Nummber of blinks per KWH of your meeter #define SLEEP_MODE false // Watt-value can only be reported when sleep mode is false. #define MAX_WATT 10000 // Max watt value to report. This filetrs outliers. #define CHILD_ID 4 // Id of the sensor child unsigned long SEND_FREQUENCY = 20000; // Minimum time between send (in milliseconds). We don't wnat to spam the gateway. MySensor gw; double ppwh = ((double)PULSE_FACTOR)/1000; // Pulses per watt hour boolean pcReceived = false; volatile unsigned long pulseCount = 0; volatile unsigned long lastBlink = 0; volatile unsigned long watt = 0; unsigned long oldPulseCount = 0; unsigned long oldWatt = 0; double oldKwh; float interval; unsigned long lastSend; MyMessage wattMsg(CHILD_ID,V_WATT); MyMessage kwhMsg(CHILD_ID,V_KWH); MyMessage pcMsg(CHILD_ID,V_VAR1); void setup() { gw.begin(incomingMessage); pinMode(DIGITAL_INPUT_SENSOR, INPUT_PULLUP); // Send the sketch version information to the gateway and Controller gw.sendSketchInfo("Energy Meter", "1.1"); // Register this device as power sensor gw.present(CHILD_ID, S_POWER); // Fetch last known pulse count value from gw gw.request(CHILD_ID, V_VAR1); lastSend=millis(); attachInterrupt(SENSOR_INTERRUPT, onPulse, RISING); } void loop() { gw.process(); unsigned long now = millis(); // Only send values at a maximum frequency or woken up from sleep bool sendTime = now - lastSend > SEND_FREQUENCY; if (pcReceived && (SLEEP_MODE || sendTime)) { // New watt value has been calculated if (!SLEEP_MODE && watt != oldWatt) { // Check that we dont get unresonable large watt value. // could hapen when long wraps or false interrupt triggered if (watt<((unsigned long)MAX_WATT)) { gw.send(wattMsg.set(watt)); // Send watt value to gw } Serial.print("Watt:"); Serial.println(watt); oldWatt = watt; } // Pulse cout has changed if (pulseCount != oldPulseCount) { gw.send(pcMsg.set(pulseCount)); // Send pulse count value to gw double kwh = ((double)pulseCount/((double)PULSE_FACTOR)); oldPulseCount = pulseCount; if (kwh != oldKwh) { gw.send(kwhMsg.set(kwh, 4)); // Send kwh value to gw oldKwh = kwh; } } lastSend = now; } else if (sendTime && !pcReceived) { // No count received. Try requesting it again gw.request(CHILD_ID, V_VAR1); lastSend=now; } if (SLEEP_MODE) { gw.sleep(SEND_FREQUENCY); } } void incomingMessage(const MyMessage &message) { if (message.type==V_VAR1) { pulseCount = oldPulseCount = message.getLong(); Serial.print("Received last pulse count from gw:"); Serial.println(pulseCount); pcReceived = true; } } void onPulse() { if (!SLEEP_MODE) { unsigned long newBlink = micros(); unsigned long interval = newBlink-lastBlink; if (interval<10000L) { // Sometimes we get interrupt on RISING return; } watt = (3600000000.0 /interval) / ppwh; lastBlink = newBlink; } pulseCount++; Serial.print(" | Pulse Duration: "); Serial.print(interval, 2); Serial.println(""); Serial.print(" | Pulse Count: "); Serial.print(pulseCount); } void output() { /* Output Results - The result of its calculations are to be output to the screen (via Serial port). */ Serial.println(""); Serial.print(" | Power (W): "); Serial.print((float)watt, 2); Serial.print(" | Energy (kWh): "); Serial.print(oldKwh, 2); }Terminal output:
Code:
send: 10-10-0-0 s=255,c=0,t=17,pt=0,l=3,sg=0,st=ok:1.5 send: 10-10-0-0 s=255,c=3,t=6,pt=1,l=1,sg=0,st=ok:0 read: 0-0-10 s=255,c=3,t=6,pt=0,l=1,sg=0:M sensor started, id=10, parent=0, distance=1 send: 10-10-0-0 s=255,c=3,t=11,pt=0,l=12,sg=0,st=ok:Energy Meter send: 10-10-0-0 s=255,c=3,t=12,pt=0,l=3,sg=0,st=ok:1.1 send: 10-10-0-0 s=4,c=0,t=13,pt=0,l=0,sg=0,st=ok: send: 10-10-0-0 s=4,c=2,t=24,pt=0,l=0,sg=0,st=ok: | Pulse Duration: 0.00 | Pulse Count: 1read: 0-0-10 s=4,c=2,t=24,pt=0,l=5,sg=0:34940 Received last pulse count from gw:34940 | Pulse Duration: 0.00 | Pulse Count: 34941 | Pulse Duration: 0.00 | Pulse Count: 34942 | Pulse Duration: 0.00 | Pulse Count: 34943 | Pulse Duration: 0.00 | Pulse Count: 34944 | Pulse Duration: 0.00 | Pulse Count: 34945 | Pulse Duration: 0.00 | Pulse Count: 34946 | Pulse Duration: 0.00 | Pulse Count: 34947 | Pulse Duration: 0.00 | Pulse Count: 34948 | Pulse Duration: 0.00 | Pulse Count: 34949 | Pulse Duration: 0.00 | Pulse Count: 34950 | Pulse Duration: 0.00 | Pulse Count: 34951 | Pulse Duration: 0.00 | Pulse Count: 34952 | Pulse Duration: 0.00 | Pulse Count: 34953 | Pulse Duration: 0.00 | Pulse Count: 34954 | Pulse Duration: 0.00 | Pulse Count: 34955 | Pulse Duration: 0.00 | Pulse Count: 34956 | Pulse Duration: 0.00 | Pulse Count: 34957 | Pulse Duration: 0.00 | Pulse Count: 34958 | Pulse Duration: 0.00 | Pulse Count: 34959 | Pulse Duration: 0.00 | Pulse Count: 34960 | Pulse Duration: 0.00 | Pulse Count: 34961 | Pulse Duration: 0.00 | Pulse Count: 34962 | Pulse Duration: 0.00 | Pulse Count: 34963 | Pulse Duration: 0.00 | Pulse Count: 34964 | Pulse Duration: 0.00 | Pulse Count: 34965 | Pulse Duration: 0.00 | Pulse Count: 34966 | Pulse Duration: 0.00 | Pulse Count: 34967 | Pulse Duration: 0.00 | Pulse Count: 34968 | Pulse Duration: 0.00 | Pulse Count: 34969 | Pulse Duration: 0.00 | Pulse Count: 34970 | Pulse Duration: 0.00 | Pulse Count: 34971 | Pulse Duration: 0.00 | Pulse Count: 34972 | Pulse Duration: 0.00 | Pulse Count: 34973 | Pulse Duration: 0.00 | Pulse Count: 34974 | Pulse Duration: 0.00 | Pulse Count: 34975 | Pulse Duration: 0.00 | Pulse Count: 34976 | Pulse Duration: 0.00 | Pulse Count: 34977 | Pulse Duration: 0.00 | Pulse Count: 34978 | Pulse Duration: 0.00 | Pulse Count: 34979 | Pulse Duration: 0.00 | Pulse Count: 34980 | Pulse Duration: 0.00 | Pulse Count: 34981 | Pulse Duration: 0.00 | Pulse Count: 34982 | Pulse Duration: 0.00 | Pulse Count: 34983 | Pulse Duration: 0.00 | Pulse Count: 34984 | Pulse Duration: 0.00 | Pulse Count: 34985 | Pulse Duration: 0.00 | Pulse Count: 34986 | Pulse Duration: 0.00 | Pulse Count: 34987 | Pulse Duration: 0.00 | Pulse Count: 34988 | Pulse Duration: 0.00 | Pulse Count: 34989 | Pulse Duration: 0.00 | Pulse Count: 34990 | Pulse Duration: 0.00 | Pulse Count: 34991 | Pulse Duration: 0.00 | Pulse Count: 34992 | Pulse Duration: 0.00 | Pulse Count: 34993 | Pulse Duration: 0.00 | Pulse Count: 34994 | Pulse Duration: 0.00 | Pulse Count: 34995 | Pulse Duration: 0.00 | Pulse Count: 34996 | Pulse Duration: 0.00 | Pulse Count: 34997 | Pulse Duration: 0.00 | Pulse Count: 34998 | Pulse Duration: 0.00 | Pulse Count: 34999 | Pulse Duration: 0.00 | Pulse Count: 35000 | Pulse Duration: 0.00 | Pulse Count: 35001 | Pulse Duration: 0.00 | Pulse Count: 35002 | Pulse Duration: 0.00 | Pulse Count: 35003 | Pulse Duration: 0.00 | Pulse Count: 35004 | Pulse Duration: 0.00 | Pulse Count: 35005 | Pulse Duration: 0.00 | Pulse Count: 35006 | Pulse Duration: 0.00 | Pulse Count: 35007 | Pulse Duration: 0.00 | Pulse Count: 35008 | Pulse Duration: 0.00 | Pulse Count: 35009 | Pulse Duration: 0.00 | Pulse Count: 35010 | Pulse Duration: 0.00 | Pulse Count: 35011 | Pulse Duration: 0.00 | Pulse Count: 35012 | Pulse Duration: 0.00 | Pulse Count: 35013 | Pulse Duration: 0.00 | Pulse Count: 35014 | Pulse Duration: 0.00 | Pulse Count: 35015 | Pulse Duration: 0.00 | Pulse Count: 35016 | Pulse Duration: 0.00 | Pulse Count: 35017 | Pulse Duration: 0.00 | Pulse Count: 35018 | Pulse Duration: 0.00 | Pulse Count: 35019 | Pulse Duration: 0.00 | Pulse Count: 35020 | Pulse Duration: 0.00 | Pulse Count: 35021 | Pulse Duration: 0.00 | Pulse Count: 35022 | Pulse Duration: 0.00 | Pulse Count: 35023 | Pulse Duration: 0.00 | Pulse Count: 35024 | Pulse Duration: 0.00 | Pulse Count: 35025 | Pulse Duration: 0.00 | Pulse Count: 35026 | Pulse Duration: 0.00 | Pulse Count: 35027 | Pulse Duration: 0.00 | Pulse Count: 35028 | Pulse Duration: 0.00 | Pulse Count: 35029 | Pulse Duration: 0.00 | Pulse Count: 35030 | Pulse Duration: 0.00 | Pulse Count: 35031 | Pulse Duration: 0.00 | Pulse Count: 35032 | Pulse Duration: 0.00 | Pulse Count: 35033 | Pulse Duration: 0.00 | Pulse Count: 35034 | Pulse Duration: 0.00 | Pulse Count: 35035 | Pulse Duration: 0.00 | Pulse Count: 35036 | Pulse Duration: 0.00 | Pulse Count: 35037 | Pulse Duration: 0.00 | Pulse Count: 35038 | Pulse Duration: 0.00 | Pulse Count: 35039 | Pulse Duration: 0.00 | Pulse Count: 35040 | Pulse Duration: 0.00 | Pulse Count: 35041 | Pulse Duration: 0.00 | Pulse Count: 35042 | Pulse Duration: 0.00 | Pulse Count: 35043 | Pulse Duration: 0.00 | Pulse Count: 35044 | Pulse Duration: 0.00 | Pulse Count: 35045 | Pulse Duration: 0.00 | Pulse Count: 35046 | Pulse Duration: 0.00 | Pulse Count: 35047 | Pulse Duration: 0.00 | Pulse Count: 35048 | Pulse Duration: 0.00 | Pulse Count: 35049 | Pulse Duration: 0.00 | Pulse Count: 35050 | Pulse Duration: 0.00 | Pulse Count: 35051 | Pulse Duration: 0.00 | Pulse Count: 35052 | Pulse Duration: 0.00 | Pulse Count: 35053 | Pulse Duration: 0.00 | Pulse Count: 35054 | Pulse Duration: 0.00 | Pulse Count: 35055 | Pulse Duration: 0.00 | Pulse Count: 35056 | Pulse Duration: 0.00 | Pulse Count: 35057 | Pulse Duration: 0.00 | Pulse Count: 35058 | Pulse Duration: 0.00 | Pulse Count: 35059 | Pulse Duration: 0.00 | Pulse Count: 35060 | Pulse Duration: 0.00 | Pulse Count: 35061 | Pulse Duration: 0.00 | Pulse Count: 35062 | Pulse Duration: 0.00 | Pulse Count: 35063 | Pulse Duration: 0.00 | Pulse Count: 35064 | Pulse Duration: 0.00 | Pulse Count: 35065 | Pulse Duration: 0.00 | Pulse Count: 35066 | Pulse Duration: 0.00 | Pulse Count: 35067 | Pulse Duration: 0.00 | Pulse Count: 35068 | Pulse Duration: 0.00 | Pulse Count: 35069 | Pulse Duration: 0.00 | Pulse Count: 35070 | Pulse Duration: 0.00 | Pulse Count: 35071 | Pulse Duration: 0.00 | Pulse Count: 35072 | Pulse Duration: 0.00 | Pulse Count: 35073 | Pulse Duration: 0.00 | Pulse Count: 35074 | Pulse Duration: 0.00 | Pulse Count: 35075 | Pulse Duration: 0.00 | Pulse Count: 35076 | Pulse Duration: 0.00 | Pulse Count: 35077 | Pulse Duration: 0.00 | Pulse Count: 35078 | Pulse Duration: 0.00 | Pulse Count: 35079 | Pulse Duration: 0.00 | Pulse Count: 35080 | Pulse Duration: 0.00 | Pulse Count: 35081 | Pulse Duration: 0.00 | Pulse Count: 35082 | Pulse Duration: 0.00 | Pulse Count: 35083 | Pulse Duration: 0.00 | Pulse Count: 35084 | Pulse Duration: 0.00 | Pulse Count: 35085 | Pulse Duration: 0.00 | Pulse Count: 35086 | Pulse Duration: 0.00 | Pulse Count: 35087 | Pulse Duration: 0.00 | Pulse Count: 35088 | Pulse Duration: 0.00 | Pulse Count: 35089 | Pulse Duration: 0.00 | Pulse Count: 35090 | Pulse Duration: 0.00 | Pulse Count: 35091 | Pulse Duration: 0.00 | Pulse Count: 35092 | Pulse Duration: 0.00 | Pulse Count: 35093 | Pulse Duration: 0.00 | Pulse Count: 35094 | Pulse Duration: 0.00 | Pulse Count: 35095 | Pulse Duration: 0.00 | Pulse Count: 35096 | Pulse Duration: 0.00 | Pulse Count: 35097 | Pulse Duration: 0.00 | Pulse Count: 35098 | Pulse Duration: 0.00 | Pulse Count: 35099 | Pulse Duration: 0.00 | Pulse Count: 35100 | Pulse Duration: 0.00 | Pulse Count: 35101 | Pulse Duration: 0.00 | Pulse Count: 35102 | Pulse Duration: 0.00 | Pulse Count: 35103 | Pulse Duration: 0.00 | Pulse Count: 35104 | Pulse Duration: 0.00 | Pulse Count: 35105 | Pulse Duration: 0.00 | Pulse Count: 35106 | Pulse Duration: 0.00 | Pulse Count: 35107 | Pulse Duration: 0.00 | Pulse Count: 35108 | Pulse Duration: 0.00 | Pulse Count: 35109 | Pulse Duration: 0.00 | Pulse Count: 35110 | Pulse Duration: 0.00 | Pulse Count: 35111 | Pulse Duration: 0.00 | Pulse Count: 35112 | Pulse Duration: 0.00 | Pulse Count: 35113 | Pulse Duration: 0.00 | Pulse Count: 35114 | Pulse Duration: 0.00 | Pulse Count: 35115 | Pulse Duration: 0.00 | Pulse Count: 35116 | Pulse Duration: 0.00 | Pulse Count: 35117 | Pulse Duration: 0.00 | Pulse Count: 35118 | Pulse Duration: 0.00 | Pulse Count: 35119 | Pulse Duration: 0.00 | Pulse Count: 35120 | Pulse Duration: 0.00 | Pulse Count: 35121 | Pulse Duration: 0.00 | Pulse Count: 35122 | Pulse Duration: 0.00 | Pulse Count: 35123 | Pulse Duration: 0.00 | Pulse Count: 35124 | Pulse Duration: 0.00 | Pulse Count: 35125 | Pulse Duration: 0.00 | Pulse Count: 35126 | Pulse Duration: 0.00 | Pulse Count: 35127 | Pulse Duration: 0.00 | Pulse Count: 35128 | Pulse Duration: 0.00 | Pulse Count: 35129 | Pulse Duration: 0.00 | Pulse Count: 35130 | Pulse Duration: 0.00 | Pulse Count: 35131 | Pulse Duration: 0.00 | Pulse Count: 35132 | Pulse Duration: 0.00 | Pulse Count: 35133 | Pulse Duration: 0.00 | Pulse Count: 35134 | Pulse Duration: 0.00 | Pulse Count: 35135 | Pulse Duration: 0.00 | Pulse Count: 35136 | Pulse Duration: 0.00 | Pulse Count: 35137 | Pulse Duration: 0.00 | Pulse Count: 35138 | Pulse Duration: 0.00 | Pulse Count: 35139 | Pulse Duration: 0.00 | Pulse Count: 35140 | Pulse Duration: 0.00 | Pulse Count: 35141 | Pulse Duration: 0.00 | Pulse Count: 35142 | Pulse Duration: 0.00 | Pulse Count: 35I have an optical light sensor on the Arduino Nano D3.
Gateway is receiving like 5000 pulses every minute. (Even without the optical sensor connected).Any ideas please?
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- If the interrupt pin is left floating (=not connected to anything) you can get lots and lots of spurious interrupts. Connect the pin to GND or Vcc through a resistor (>50ohm) to get rid of that problem.
- Even when the optical sensor is connected, you might have a bouncing problem. Look up "debouncing" if you haven't already. There are lots of weird things happening when we leave the "safe" digital world :-)
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This post is deleted!
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@mfalkvidd said:
- If the interrupt pin is left floating (=not connected to anything) you can get lots and lots of spurious interrupts. Connect the pin to GND or Vcc through a resistor (>50ohm) to get rid of that problem.
- Even when the optical sensor is connected, you might have a bouncing problem. Look up "debouncing" if you haven't already. There are lots of weird things happening when we leave the "safe" digital world :-)
It looks that noise is gone by connecting 10k resistor to VCC (pull-up?). Thanks for heads-up
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Yes, that's called a pull-up :smile: Great to hear it solved the problem!
