Optical pulse sensor
-
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?
-
- 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
-
This post is deleted!
-
@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
-
Yes, that's called a pull-up
Great to hear it solved the problem!
