DHT and DOOR sensor
My Project
20
Posts
6
Posters
2.2k
Views
6
Watching
-
Hi
I have sorted the pins and library problems, but now I get failed to read errors
Updated 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 * Version 1.1 - 2016-07-20: Converted to MySensors v2.0 and added various improvements - Torben Woltjen (mozzbozz) * * DESCRIPTION * This sketch provides an example of how to implement a humidity/temperature * sensor using a DHT11/DHT-22. * * For more information, please visit: * http://www.mysensors.org/build/humidity * */ // Enable debug prints #define MY_DEBUG #define MY_RX_MESSAGE_BUFFER_FEATURE #define MY_RF24_IRQ_PIN 2 // Enable and select radio type attached #define MY_RADIO_RF24 //#define MY_RADIO_RFM69 //#define MY_RS485 #include <SPI.h> #include <MySensors.h> #include <DHT.h> #include <Bounce2.h> // Set this to the pin you connected the DHT's data pin to #define DHT_DATA_PIN 4 #define BUTTON_PIN 3 // Arduino Digital I/O pin for button/reed switch // Set this offset if the sensor has a permanent small offset to the real temperatures. // In Celsius degrees (as measured by the device) #define SENSOR_TEMP_OFFSET 0 // Sleep time between sensor updates (in milliseconds) // Must be >1000ms for DHT22 and >2000ms for DHT11 static const uint64_t UPDATE_INTERVAL = 60000; // Force sending an update of the temperature after n sensor reads, so a controller showing the // timestamp of the last update doesn't show something like 3 hours in the unlikely case, that // the value didn't change since; // i.e. the sensor would force sending an update every UPDATE_INTERVAL*FORCE_UPDATE_N_READS [ms] static const uint8_t FORCE_UPDATE_N_READS = 10; #define CHILD_ID 3 #define CHILD_ID_HUM 0 #define CHILD_ID_TEMP 1 float lastTemp; float lastHum; uint8_t nNoUpdatesTemp; uint8_t nNoUpdatesHum; bool metric = true; MyMessage msgHum(CHILD_ID_HUM, V_HUM); MyMessage msgTemp(CHILD_ID_TEMP, V_TEMP); DHT dht; Bounce debouncer = Bounce(); int oldValue=-1; // Change to V_LIGHT if you use S_LIGHT in presentation below MyMessage msg(CHILD_ID,V_TRIPPED); void presentation() { // Send the sketch version information to the gateway sendSketchInfo("Door/DHT", "1.1"); // Register all sensors to gw (they will be created as child devices) present(CHILD_ID_HUM, S_HUM); present(CHILD_ID_TEMP, S_TEMP); // 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); metric = getControllerConfig().isMetric; } void setup() { dht.setup(DHT_DATA_PIN); // set data pin of DHT sensor if (UPDATE_INTERVAL <= dht.getMinimumSamplingPeriod()) { Serial.println("Warning: UPDATE_INTERVAL is smaller than supported by the sensor!"); } // Sleep for the time of the minimum sampling period to give the sensor time to power up // (otherwise, timeout errors might occure for the first reading) sleep(dht.getMinimumSamplingPeriod()); // 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 loop() { // Force reading sensor, so it works also after sleep() dht.readSensor(true); // Get temperature from DHT library float temperature = dht.getTemperature(); if (isnan(temperature)) { Serial.println("Failed reading temperature from DHT!"); } else if (temperature != lastTemp || nNoUpdatesTemp == FORCE_UPDATE_N_READS) { // Only send temperature if it changed since the last measurement or if we didn't send an update for n times lastTemp = temperature; // apply the offset before converting to something different than Celsius degrees temperature += SENSOR_TEMP_OFFSET; if (!metric) { temperature = dht.toFahrenheit(temperature); } // Reset no updates counter nNoUpdatesTemp = 0; send(msgTemp.set(temperature, 1)); #ifdef MY_DEBUG Serial.print("T: "); Serial.println(temperature); #endif } else { // Increase no update counter if the temperature stayed the same nNoUpdatesTemp++; } // Get humidity from DHT library float humidity = dht.getHumidity(); if (isnan(humidity)) { Serial.println("Failed reading humidity from DHT"); } else if (humidity != lastHum || nNoUpdatesHum == FORCE_UPDATE_N_READS) { // Only send humidity if it changed since the last measurement or if we didn't send an update for n times lastHum = humidity; // Reset no updates counter nNoUpdatesHum = 0; send(msgHum.set(humidity, 1)); #ifdef MY_DEBUG Serial.print("H: "); Serial.println(humidity); #endif } else { // Increase no update counter if the humidity stayed the same nNoUpdatesHum++; 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; } // Sleep for a while to save energy sleep(UPDATE_INTERVAL); }}and error snippet
3534 TSF:MSG:SEND,1-1-0-0,s=2,c=1,t=16,pt=0,l=1,sg=0,ft=0,st=OK:1 Failed reading temperature from DHT! Failed reading humidity from DHT 3545 MCO:SLP:MS=60000,SMS=0,I1=1,M1=1,I2=255,M2=255 3553 TSF:TDI:TSL 3555 MCO:SLP:WUP=1 3557 TSF:TRI:TSB 1 3584 TSF:MSG:SEND,1-1-0-0,s=2,c=1,t=16,pt=0,l=1,sg=0,ft=0,st=OK:1 Failed reading temperature from DHT! Failed reading humidity from DHT 3592 MCO:SLP:MS=60000,SMS=0,I1=1,M1=1,I2=255,M2=255 3602 TSF:TDI:TSL 3604 MCO:SLP:WUP=1 3606 TSF:TRI:TSB@terence-faul said in DHT and DOOR sensor:
Failed reading temperature from DHT!
Failed reading humidity from DHTThis means the DHT library is unable to read from the DHT sensor. Double-check that the DHT gets sufficient power and that it is wired correctly. If you have another DHT sensor, switch sensors and see if that helps.
-
Will give that a go. But if I load the DHT only sketch on the same node it reads fine.
Could you check my sketch I’m a bit of a noob with code
-
Will give that a go. But if I load the DHT only sketch on the same node it reads fine.
Could you check my sketch I’m a bit of a noob with 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 * Version 1.1 - 2016-07-20: Converted to MySensors v2.0 and added various improvements - Torben Woltjen (mozzbozz) * * DESCRIPTION * This sketch provides an example of how to implement a humidity/temperature * sensor using a DHT11/DHT-22. * * For more information, please visit: * http://www.mysensors.org/build/humidity * */ // Enable debug prints #define MY_DEBUG // Enable and select radio type attached #define MY_RADIO_NRF24 //#define MY_RADIO_RFM69 //#define MY_RS485 #include <SPI.h> #include <MySensors.h> #include <DHT.h> // Set this to the pin you connected the DHT's data pin to #define DHT_DATA_PIN 4 // Set this offset if the sensor has a permanent small offset to the real temperatures. // In Celsius degrees (as measured by the device) #define SENSOR_TEMP_OFFSET 0 // Sleep time between sensor updates (in milliseconds) // Must be >1000ms for DHT22 and >2000ms for DHT11 static const uint64_t UPDATE_INTERVAL = 60000; // Force sending an update of the temperature after n sensor reads, so a controller showing the // timestamp of the last update doesn't show something like 3 hours in the unlikely case, that // the value didn't change since; // i.e. the sensor would force sending an update every UPDATE_INTERVAL*FORCE_UPDATE_N_READS [ms] static const uint8_t FORCE_UPDATE_N_READS = 10; #define CHILD_ID_HUM 0 #define CHILD_ID_TEMP 1 float lastTemp; float lastHum; uint8_t nNoUpdatesTemp; uint8_t nNoUpdatesHum; bool metric = true; MyMessage msgHum(CHILD_ID_HUM, V_HUM); MyMessage msgTemp(CHILD_ID_TEMP, V_TEMP); DHT dht; void presentation() { // Send the sketch version information to the gateway sendSketchInfo("TemperatureAndHumidity", "1.1"); // Register all sensors to gw (they will be created as child devices) present(CHILD_ID_HUM, S_HUM); present(CHILD_ID_TEMP, S_TEMP); metric = getControllerConfig().isMetric; } void setup() { dht.setup(DHT_DATA_PIN); // set data pin of DHT sensor if (UPDATE_INTERVAL <= dht.getMinimumSamplingPeriod()) { Serial.println("Warning: UPDATE_INTERVAL is smaller than supported by the sensor!"); } // Sleep for the time of the minimum sampling period to give the sensor time to power up // (otherwise, timeout errors might occure for the first reading) sleep(dht.getMinimumSamplingPeriod()); } void loop() { // Force reading sensor, so it works also after sleep() dht.readSensor(true); // Get temperature from DHT library float temperature = dht.getTemperature(); if (isnan(temperature)) { Serial.println("Failed reading temperature from DHT!"); } else if (temperature != lastTemp || nNoUpdatesTemp == FORCE_UPDATE_N_READS) { // Only send temperature if it changed since the last measurement or if we didn't send an update for n times lastTemp = temperature; // apply the offset before converting to something different than Celsius degrees temperature += SENSOR_TEMP_OFFSET; if (!metric) { temperature = dht.toFahrenheit(temperature); } // Reset no updates counter nNoUpdatesTemp = 0; send(msgTemp.set(temperature, 1)); #ifdef MY_DEBUG Serial.print("T: "); Serial.println(temperature); #endif } else { // Increase no update counter if the temperature stayed the same nNoUpdatesTemp++; } // Get humidity from DHT library float humidity = dht.getHumidity(); if (isnan(humidity)) { Serial.println("Failed reading humidity from DHT"); } else if (humidity != lastHum || nNoUpdatesHum == FORCE_UPDATE_N_READS) { // Only send humidity if it changed since the last measurement or if we didn't send an update for n times lastHum = humidity; // Reset no updates counter nNoUpdatesHum = 0; send(msgHum.set(humidity, 1)); #ifdef MY_DEBUG Serial.print("H: "); Serial.println(humidity); #endif } else { // Increase no update counter if the humidity stayed the same nNoUpdatesHum++; } // Sleep for a while to save energy sleep(UPDATE_INTERVAL); } -
/** * 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 * Version 1.1 - 2016-07-20: Converted to MySensors v2.0 and added various improvements - Torben Woltjen (mozzbozz) * * DESCRIPTION * This sketch provides an example of how to implement a humidity/temperature * sensor using a DHT11/DHT-22. * * For more information, please visit: * http://www.mysensors.org/build/humidity * */ // Enable debug prints #define MY_DEBUG // Enable and select radio type attached #define MY_RADIO_NRF24 //#define MY_RADIO_RFM69 //#define MY_RS485 #include <SPI.h> #include <MySensors.h> #include <DHT.h> // Set this to the pin you connected the DHT's data pin to #define DHT_DATA_PIN 4 // Set this offset if the sensor has a permanent small offset to the real temperatures. // In Celsius degrees (as measured by the device) #define SENSOR_TEMP_OFFSET 0 // Sleep time between sensor updates (in milliseconds) // Must be >1000ms for DHT22 and >2000ms for DHT11 static const uint64_t UPDATE_INTERVAL = 60000; // Force sending an update of the temperature after n sensor reads, so a controller showing the // timestamp of the last update doesn't show something like 3 hours in the unlikely case, that // the value didn't change since; // i.e. the sensor would force sending an update every UPDATE_INTERVAL*FORCE_UPDATE_N_READS [ms] static const uint8_t FORCE_UPDATE_N_READS = 10; #define CHILD_ID_HUM 0 #define CHILD_ID_TEMP 1 float lastTemp; float lastHum; uint8_t nNoUpdatesTemp; uint8_t nNoUpdatesHum; bool metric = true; MyMessage msgHum(CHILD_ID_HUM, V_HUM); MyMessage msgTemp(CHILD_ID_TEMP, V_TEMP); DHT dht; void presentation() { // Send the sketch version information to the gateway sendSketchInfo("TemperatureAndHumidity", "1.1"); // Register all sensors to gw (they will be created as child devices) present(CHILD_ID_HUM, S_HUM); present(CHILD_ID_TEMP, S_TEMP); metric = getControllerConfig().isMetric; } void setup() { dht.setup(DHT_DATA_PIN); // set data pin of DHT sensor if (UPDATE_INTERVAL <= dht.getMinimumSamplingPeriod()) { Serial.println("Warning: UPDATE_INTERVAL is smaller than supported by the sensor!"); } // Sleep for the time of the minimum sampling period to give the sensor time to power up // (otherwise, timeout errors might occure for the first reading) sleep(dht.getMinimumSamplingPeriod()); } void loop() { // Force reading sensor, so it works also after sleep() dht.readSensor(true); // Get temperature from DHT library float temperature = dht.getTemperature(); if (isnan(temperature)) { Serial.println("Failed reading temperature from DHT!"); } else if (temperature != lastTemp || nNoUpdatesTemp == FORCE_UPDATE_N_READS) { // Only send temperature if it changed since the last measurement or if we didn't send an update for n times lastTemp = temperature; // apply the offset before converting to something different than Celsius degrees temperature += SENSOR_TEMP_OFFSET; if (!metric) { temperature = dht.toFahrenheit(temperature); } // Reset no updates counter nNoUpdatesTemp = 0; send(msgTemp.set(temperature, 1)); #ifdef MY_DEBUG Serial.print("T: "); Serial.println(temperature); #endif } else { // Increase no update counter if the temperature stayed the same nNoUpdatesTemp++; } // Get humidity from DHT library float humidity = dht.getHumidity(); if (isnan(humidity)) { Serial.println("Failed reading humidity from DHT"); } else if (humidity != lastHum || nNoUpdatesHum == FORCE_UPDATE_N_READS) { // Only send humidity if it changed since the last measurement or if we didn't send an update for n times lastHum = humidity; // Reset no updates counter nNoUpdatesHum = 0; send(msgHum.set(humidity, 1)); #ifdef MY_DEBUG Serial.print("H: "); Serial.println(humidity); #endif } else { // Increase no update counter if the humidity stayed the same nNoUpdatesHum++; } // Sleep for a while to save energy sleep(UPDATE_INTERVAL); } -
@Terence-Faul The only thing I can say is that it is generally good practice to put all #include statements at the start of the code, then all the #define statements and finally all other items. At the moment you #define things before you #include the library and maybe that is an issue for the compiler?
-
@Terence-Faul The only thing I can say is that it is generally good practice to put all #include statements at the start of the code, then all the #define statements and finally all other items. At the moment you #define things before you #include the library and maybe that is an issue for the compiler?
@skywatch while your recommendation is good in general, all MySensors defines (MY_*) must be defined before including MySensors.h. Otherwise the defines won't be available to the library, so the library will need to fall back on the default settings.
-
Thanks so much for the help, what is the next step then? create two sensors?
-
Thanks so much for the help, what is the next step then? create two sensors?
@terence-faul
comment step by step blocks of code for DOOR switch and try when it start to work. -
@skywatch while your recommendation is good in general, all MySensors defines (MY_*) must be defined before including MySensors.h. Otherwise the defines won't be available to the library, so the library will need to fall back on the default settings.
@mfalkvidd Ah yes, I forgot that bit!
-
Hi
Please assist, I am trying to combine the default straight from the examples, but the DHT give an error on compile
/** * 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 * Version 1.1 - 2016-07-20: Converted to MySensors v2.0 and added various improvements - Torben Woltjen (mozzbozz) * * DESCRIPTION * This sketch provides an example of how to implement a humidity/temperature * sensor using a DHT11/DHT-22. * * For more information, please visit: * http://www.mysensors.org/build/humidity * */ // Enable debug prints #define MY_DEBUG // Enable and select radio type attached #define MY_RADIO_RF24 //#define MY_RADIO_RFM69 //#define MY_RS485 #include <SPI.h> #include <MySensors.h> #include <DHT.h> #include <Bounce2.h> // Set this to the pin you connected the DHT's data pin to #define DHT_DATA_PIN 3 #define BUTTON_PIN 3 // Arduino Digital I/O pin for button/reed switch // Set this offset if the sensor has a permanent small offset to the real temperatures. // In Celsius degrees (as measured by the device) #define SENSOR_TEMP_OFFSET 0 // Sleep time between sensor updates (in milliseconds) // Must be >1000ms for DHT22 and >2000ms for DHT11 static const uint64_t UPDATE_INTERVAL = 60000; // Force sending an update of the temperature after n sensor reads, so a controller showing the // timestamp of the last update doesn't show something like 3 hours in the unlikely case, that // the value didn't change since; // i.e. the sensor would force sending an update every UPDATE_INTERVAL*FORCE_UPDATE_N_READS [ms] static const uint8_t FORCE_UPDATE_N_READS = 10; #define CHILD_ID 3 #define CHILD_ID_HUM 0 #define CHILD_ID_TEMP 1 float lastTemp; float lastHum; uint8_t nNoUpdatesTemp; uint8_t nNoUpdatesHum; bool metric = true; MyMessage msgHum(CHILD_ID_HUM, V_HUM); MyMessage msgTemp(CHILD_ID_TEMP, V_TEMP); DHT dht; Bounce debouncer = Bounce(); int oldValue=-1; // Change to V_LIGHT if you use S_LIGHT in presentation below MyMessage msg(CHILD_ID,V_TRIPPED); void presentation() { // Send the sketch version information to the gateway sendSketchInfo("TemperatureAndHumidity", "1.1"); // Register all sensors to gw (they will be created as child devices) present(CHILD_ID_HUM, S_HUM); present(CHILD_ID_TEMP, S_TEMP); // 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); metric = getControllerConfig().isMetric; } void setup() { dht.setup(DHT_DATA_PIN); // set data pin of DHT sensor if (UPDATE_INTERVAL <= dht.getMinimumSamplingPeriod()) { Serial.println("Warning: UPDATE_INTERVAL is smaller than supported by the sensor!"); } // Sleep for the time of the minimum sampling period to give the sensor time to power up // (otherwise, timeout errors might occure for the first reading) sleep(dht.getMinimumSamplingPeriod()); // 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 loop() { // Force reading sensor, so it works also after sleep() dht.readSensor(true); // Get temperature from DHT library float temperature = dht.getTemperature(); if (isnan(temperature)) { Serial.println("Failed reading temperature from DHT!"); } else if (temperature != lastTemp || nNoUpdatesTemp == FORCE_UPDATE_N_READS) { // Only send temperature if it changed since the last measurement or if we didn't send an update for n times lastTemp = temperature; // apply the offset before converting to something different than Celsius degrees temperature += SENSOR_TEMP_OFFSET; if (!metric) { temperature = dht.toFahrenheit(temperature); } // Reset no updates counter nNoUpdatesTemp = 0; send(msgTemp.set(temperature, 1)); #ifdef MY_DEBUG Serial.print("T: "); Serial.println(temperature); #endif } else { // Increase no update counter if the temperature stayed the same nNoUpdatesTemp++; } // Get humidity from DHT library float humidity = dht.getHumidity(); if (isnan(humidity)) { Serial.println("Failed reading humidity from DHT"); } else if (humidity != lastHum || nNoUpdatesHum == FORCE_UPDATE_N_READS) { // Only send humidity if it changed since the last measurement or if we didn't send an update for n times lastHum = humidity; // Reset no updates counter nNoUpdatesHum = 0; send(msgHum.set(humidity, 1)); #ifdef MY_DEBUG Serial.print("H: "); Serial.println(humidity); #endif } else { // Increase no update counter if the humidity stayed the same nNoUpdatesHum++; 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; } // Sleep for a while to save energy sleep(UPDATE_INTERVAL); }The error is below
/Users/terencefaul/Documents/PlatformIO/Projects/Mysensors DHT and Door/src/BinarySwitchSleepSensor.ino.ino: In function 'void loop()': /Users/terencefaul/Documents/PlatformIO/Projects/Mysensors DHT and Door/src/BinarySwitchSleepSensor.ino.ino:129:22: error: no matching function for call to 'DHT::readSensor(bool)' dht.readSensor(true);```Hi @terence-faul did you fix this?
i'm also trying too merge a door & dht sketch but have not got a clue where too start
if you have solved this can you post the working sketch
