Battery Operated Door Magnet Sensor
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Hi guys,
I have created a circuit base on this "https://forum.mysensors.org/topic/486/my-2aa-battery-sensor" and it works fine.
However, I have changed the code slightly to only read the battery state to calculated the battery percentage only when status of door switch changed.I know I have to sleep the arduino and radio to save battery but don't know where I have sleep it.
My code is attached can you please advise me how can I change the code to be able to read the status of door change as quick as possible without delay and also be able to read/calculate battery percentage as well.here is my 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. ******************************* DESCRIPTION Simple binary switch example Connect button or door/window reed switch between digitial I/O pin 3 (BUTTON_PIN below) and GND. http://www.mysensors.org/build/binary */ // Enable debug prints to serial monitor #define MY_DEBUG //Fixed NodeID in Domoticz #define MY_NODE_ID 8 // Enable and select radio type attached #define MY_RADIO_NRF24 //#define MY_RADIO_RFM69 #include <SPI.h> #include <MySensors.h> #include <Bounce2.h> #define CHILD_ID 5 #define BUTTON_PIN 3 // Arduino Digital I/O pin for button/reed switch Bounce debouncer = Bounce(); int oldValue = -1; int BATTERY_SENSE_PIN = A0; // select the input pin for the battery sense point unsigned long SLEEP_TIME = 900000; // sleep time between reads (seconds * 1000 milliseconds) int oldBatteryPcnt = 0; // Change to V_LIGHT if you use S_LIGHT in presentation below MyMessage msg(CHILD_ID, V_TRIPPED); void setup() { // use the 1.1 V internal reference #if defined(__AVR_ATmega2560__) analogReference(INTERNAL1V1); #else analogReference(INTERNAL); #endif // Setup the button pinMode(BUTTON_PIN, INPUT); // Activate internal pull-up digitalWrite(BUTTON_PIN, HIGH); // After setting up the button, setup debouncer debouncer.attach(BUTTON_PIN); debouncer.interval(5); } void presentation() { // Send the sketch version information to the gateway and Controller sendSketchInfo("Enterance-Door-Sensor", "1.0"); // Register binary input sensor to gw (they will be created as child devices) // You can use S_DOOR, S_MOTION or S_LIGHT here depending on your usage. // If S_LIGHT is used, remember to update variable type you send in. See "msg" above. present(CHILD_ID, S_DOOR); } // Check if digital input has changed and send in new value void loop() { debouncer.update(); // Get the update value int value = debouncer.read(); if (value != oldValue) { // Send in the new value send(msg.set(value == HIGH ? 1 : 0)); oldValue = value; BatteryMeasurment(); } ////// sleep(SLEEP_TIME); //Can I add it here, in this case does the door sensor response quickly to any state change? } void BatteryMeasurment(){ // get the battery Voltage int sensorValue = analogRead(BATTERY_SENSE_PIN); #ifdef MY_DEBUG Serial.println(sensorValue); #endif // 1M, 470K divider across battery and using internal ADC ref of 1.1V // Sense point is bypassed with 0.1 uF cap to reduce noise at that point // ((1e6+470e3)/470e3)*1.1 = Vmax = 3.44 Volts // 3.44/1023 = Volts per bit = 0.003363075 int batteryPcnt = sensorValue / 10; #ifdef MY_DEBUG float batteryV = sensorValue * 0.003363075; Serial.print("Battery Voltage: "); Serial.print(batteryV); Serial.println(" V"); Serial.print("Battery percent: "); Serial.print(batteryPcnt); Serial.println(" %"); #endif if (oldBatteryPcnt != batteryPcnt) { // Power up radio after sleep sendBatteryLevel(batteryPcnt); oldBatteryPcnt = batteryPcnt; } }If it's wrong, how can I attach the pin 3 , which is door contact switch pin, to an interrupt to responds as soon as state changes?
Please note that the radio IRQ is connected to pin 2 of Arduino already!Many thanks,
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Hi guys,
I have created a circuit base on this "https://forum.mysensors.org/topic/486/my-2aa-battery-sensor" and it works fine.
However, I have changed the code slightly to only read the battery state to calculated the battery percentage only when status of door switch changed.I know I have to sleep the arduino and radio to save battery but don't know where I have sleep it.
My code is attached can you please advise me how can I change the code to be able to read the status of door change as quick as possible without delay and also be able to read/calculate battery percentage as well.here is my 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. ******************************* DESCRIPTION Simple binary switch example Connect button or door/window reed switch between digitial I/O pin 3 (BUTTON_PIN below) and GND. http://www.mysensors.org/build/binary */ // Enable debug prints to serial monitor #define MY_DEBUG //Fixed NodeID in Domoticz #define MY_NODE_ID 8 // Enable and select radio type attached #define MY_RADIO_NRF24 //#define MY_RADIO_RFM69 #include <SPI.h> #include <MySensors.h> #include <Bounce2.h> #define CHILD_ID 5 #define BUTTON_PIN 3 // Arduino Digital I/O pin for button/reed switch Bounce debouncer = Bounce(); int oldValue = -1; int BATTERY_SENSE_PIN = A0; // select the input pin for the battery sense point unsigned long SLEEP_TIME = 900000; // sleep time between reads (seconds * 1000 milliseconds) int oldBatteryPcnt = 0; // Change to V_LIGHT if you use S_LIGHT in presentation below MyMessage msg(CHILD_ID, V_TRIPPED); void setup() { // use the 1.1 V internal reference #if defined(__AVR_ATmega2560__) analogReference(INTERNAL1V1); #else analogReference(INTERNAL); #endif // Setup the button pinMode(BUTTON_PIN, INPUT); // Activate internal pull-up digitalWrite(BUTTON_PIN, HIGH); // After setting up the button, setup debouncer debouncer.attach(BUTTON_PIN); debouncer.interval(5); } void presentation() { // Send the sketch version information to the gateway and Controller sendSketchInfo("Enterance-Door-Sensor", "1.0"); // Register binary input sensor to gw (they will be created as child devices) // You can use S_DOOR, S_MOTION or S_LIGHT here depending on your usage. // If S_LIGHT is used, remember to update variable type you send in. See "msg" above. present(CHILD_ID, S_DOOR); } // Check if digital input has changed and send in new value void loop() { debouncer.update(); // Get the update value int value = debouncer.read(); if (value != oldValue) { // Send in the new value send(msg.set(value == HIGH ? 1 : 0)); oldValue = value; BatteryMeasurment(); } ////// sleep(SLEEP_TIME); //Can I add it here, in this case does the door sensor response quickly to any state change? } void BatteryMeasurment(){ // get the battery Voltage int sensorValue = analogRead(BATTERY_SENSE_PIN); #ifdef MY_DEBUG Serial.println(sensorValue); #endif // 1M, 470K divider across battery and using internal ADC ref of 1.1V // Sense point is bypassed with 0.1 uF cap to reduce noise at that point // ((1e6+470e3)/470e3)*1.1 = Vmax = 3.44 Volts // 3.44/1023 = Volts per bit = 0.003363075 int batteryPcnt = sensorValue / 10; #ifdef MY_DEBUG float batteryV = sensorValue * 0.003363075; Serial.print("Battery Voltage: "); Serial.print(batteryV); Serial.println(" V"); Serial.print("Battery percent: "); Serial.print(batteryPcnt); Serial.println(" %"); #endif if (oldBatteryPcnt != batteryPcnt) { // Power up radio after sleep sendBatteryLevel(batteryPcnt); oldBatteryPcnt = batteryPcnt; } }If it's wrong, how can I attach the pin 3 , which is door contact switch pin, to an interrupt to responds as soon as state changes?
Please note that the radio IRQ is connected to pin 2 of Arduino already!Many thanks,
@sghazagh You have to use sleep with interrupt but you can't use sleep at all with debounce library. Look at this example for how to do it: https://github.com/mysensors/MySensors/blob/development/examples/BinarySwitchSleepSensor/BinarySwitchSleepSensor.ino
(The sleep(5) -debounce delay can be extende a bit in my opinion though.) -
Look at my node: I used HW-Debounce and deep sleep.
Sketch inside. -
@sghazagh You have to use sleep with interrupt but you can't use sleep at all with debounce library. Look at this example for how to do it: https://github.com/mysensors/MySensors/blob/development/examples/BinarySwitchSleepSensor/BinarySwitchSleepSensor.ino
(The sleep(5) -debounce delay can be extende a bit in my opinion though.) -
@m26872 Thank you very much mate.
I just added the battery reporting part and it works like a charm.Many many thanks...
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@carmelo42 Yes, I did.
See this page: https://forum.mysensors.org/topic/486/my-2aa-battery-sensor (Edit 2 image)
I used this as a base. Except, instead of DH22, I used magnetic sensor connected to pin 3 and GND of Arduino Pro mini. -
@m26872 Thank you very much mate.
I just added the battery reporting part and it works like a charm.Many many thanks...
