Energy Monitoring
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I want to use the LM393 sketch to monitor the pulses of my Power meter. But how do I make it register every blink? I still have not figured out how to make a sensor wake up instead of just using sleep.
This is the sketch:
/** * 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 * Example sketch showing how to measue light level using a LM393 photo-resistor * http://www.mysensors.org/build/light */ #include <SPI.h> #include <MySensor.h> #include <MyTransportRFM69.h> #define CHILD_ID_LIGHT 0 #define LIGHT_SENSOR_ANALOG_PIN 0 unsigned long SLEEP_TIME = 30000; // Sleep time between reads (in milliseconds) MyTransportRFM69 transport(RFM69_FREQUENCY, RFM69_NETWORKID, RF69_SPI_CS, RF69_IRQ_PIN, false, RF69_IRQ_NUM); MySensor gw(transport); MyMessage msg(CHILD_ID_LIGHT, V_LIGHT_LEVEL); int lastLightLevel; void setup() { gw.begin(); // Send the sketch version information to the gateway and Controller gw.sendSketchInfo("Light Sensor", "1.0"); // Register all sensors to gateway (they will be created as child devices) gw.present(CHILD_ID_LIGHT, S_LIGHT_LEVEL); } void loop() { int lightLevel = (1023-analogRead(LIGHT_SENSOR_ANALOG_PIN))/10.23; Serial.println(lightLevel); if (lightLevel != lastLightLevel) { gw.send(msg.set(lightLevel)); lastLightLevel = lightLevel; } gw.sleep(SLEEP_TIME); }
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Ah, don't know how I could have missed it.
[http://www.mysensors.org/build/pulse_power](Power meter pulse sensor)
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Can't get it to work. The sensor detects the power meter blinks and is presented as Energy monitor in the domoticz log. But it does not show under devices.
/** * 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 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 INTERRUPT DIGITAL_INPUT_SENSOR-2 // Usually the interrupt = pin -2 (on uno/nano anyway) #define CHILD_ID 1 // 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; 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); // Send the sketch version information to the gateway and Controller gw.sendSketchInfo("Energy Meter", "1.0"); // 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); attachInterrupt(INTERRUPT, onPulse, RISING); lastSend=millis(); } 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++; }
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I found a post at the domoticz forum where the same problem was described. He managed to solve it by doing this:
"To have my software send something I removed those parts which check for sending frequency and also identity of values. I now send whenever a pulse occurs (which is every 20 to 120 seconds, depending). My network is rather small so far and my energy meter is using a power adapter so that should be no problem. How often do others update their Watt values?"But what parts do I need to delete? I tried to remove most stuff regarding to frequenzy but could not get it to complie after my tests.
When running the "stock" sketch from mysensors.org I get this in my domotic log:
2015-10-07 20:47:26.030 Hardware Monitor: Fetching data (System sensors) 2015-10-07 20:47:56.166 Hardware Monitor: Fetching data (System sensors) 2015-10-07 20:48:26.302 Hardware Monitor: Fetching data (System sensors) 2015-10-07 20:48:56.437 Hardware Monitor: Fetching data (System sensors) 2015-10-07 20:49:26.571 Hardware Monitor: Fetching data (System sensors) 2015-10-07 20:49:48.781 MySensors: Node: 7, Sketch Name: Energy Meter 2015-10-07 20:49:48.825 MySensors: Node: 7, Sketch Name: Energy Meter 2015-10-07 20:49:48.870 MySensors: Node: 7, Sketch Name: Energy Meter 2015-10-07 20:49:48.919 MySensors: Node: 7, Sketch Version: 1.0 2015-10-07 20:49:48.963 MySensors: Node: 7, Sketch Version: 1.0 2015-10-07 20:49:49.007 MySensors: Node: 7, Sketch Version: 1.0 2015-10-07 20:49:56.783 Hardware Monitor: Fetching data (System sensors) 2015-10-07 20:50:26.917 Hardware Monitor: Fetching data (System sensors)It looks a little bit weird that it presents itself three times in a row.
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Sorry for spamming but I solved the problem. The Original sketch was fine. I removed the radio and resoldered it (RFM69W) And then everything was Ok. There must have been some bad connecton as the sketch sent 3x greeting message.
