implementing multiple sensors
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Any help on implementing multiple sensors and readings on one Arduino would be appreciated.
@andyuno
Im really no expert but I'll try to explain with a easy example. So for borked english.Say you want to combine a soil moisture sensor and a DHT22 temp sensor.
Open both of the examples and look at the top part that are circled in red.
This is where all the librarys that are needed are listed. Simply copy/paste the ones that are needed, in my example all libraries are equal except for the one circled in blue. So make sure you get all needed libraries!
The next step is to look at the define part, circled in green. Here you copy/paste so you get all the needed parts and you must also change the pin number where your sensor is connected on the Arduino bord. So if you soldered your soil sensor on digital pin 5, change the number from 3 to 5 in #define DIGITAL_INPUT_SOIL_SENSOR 3.
The child ID may also needed to be changed so that there isn't a conflict.Keep copy/paste all the way down in the sketch. Make sure that you place the code in the right place.If its inside the void setup() in one code, paste it inside the void setup() in the target code, I marked it green below. As you can see in the attached picture below in the red rectangle, Sensor gw; is in both codes so don't copy that. You only need to copy/paste the parts that are unique!
Just keep trying! If I can do it, I'm sure you can too!
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Well this is my first attempt of merging some senses the code compiled with no errors, and they recognised by Vera, but I get no readings or activations as if they're dead
///#include <Sleep_n0m1.h> #include <SPI.h> #include <EEPROM.h> #include <RF24.h> #include <Sensor.h> #include <Relay.h> //andys Added #define DIGITAL_INPUT_SENSOR 3 // The digital input you attached your motion sensor. (Only 2 and 3 generates interrupt!) #define INTERRUPT DIGITAL_INPUT_SENSOR-2 // Usually the interrupt = pin -2 (on uno/nano anyway) #define CHILD_ID 7 // Id of the sensor child #define RELAY_1 4 //andys Added// Arduino Digital I/O pin number for first relay (second on pin+1 etc) #define NUMBER_OF_RELAYS 1 //andys Added #define RELAY_ON 0 //andys Added #define RELAY_OFF 1 //andys Added Sensor gw; //Sleep sleep; void setup() { EEPROM.write(EEPROM_RELAY_ID_ADDRESS, 0); gw.begin(); // Send the sketch version information to the gateway and Controller gw.sendSketchInfo("Motion Sensor", "1.0"); gw.sendSketchInfo("Relay", "1.0"); //Andy Added pinMode(DIGITAL_INPUT_SENSOR, INPUT); // sets the motion sensor digital pin as input // Register all sensors to gw (they will be created as child devices) gw.sendSensorPresentation(CHILD_ID, S_MOTION); for (int i=0; i<NUMBER_OF_RELAYS;i++) { //Andy Added gw.sendSensorPresentation(RELAY_1+i, S_LIGHT); //Andy Added } // Fetch relay status //Andy Added for (int i=0; i<NUMBER_OF_RELAYS;i++) { //Andy Added // Make sure relays are off when starting up //Andy Added digitalWrite(RELAY_1+i, RELAY_OFF); //Andy Added // Then set relay pins in output mode //Andy Added pinMode(RELAY_1+i, OUTPUT); //Andy Added // Request/wait for relay status //Andy Added gw.getStatus(RELAY_1+i, V_LIGHT); //Andy Added setRelayStatus(gw.getMessage()); // Wait here until status message arrive from gw } //Andy Added } void loop() { if (gw.messageAvailable()) { //Andy Added message_s message = gw.getMessage(); //Andy Added setRelayStatus(message); //Andy Added // Read digital motion value boolean tripped = digitalRead(DIGITAL_INPUT_SENSOR) == HIGH; Serial.println(tripped); gw.sendVariable(CHILD_ID, V_TRIPPED, tripped?"1":"0"); // Send tripped value to gw // Power down the radio. Note that the radio will get powered back up // on the next write() call. delay(200); //delay to allow serial to fully print before sleep // gw.powerDown(); // sleep.pwrDownMode(); //set sleep mode // sleep.sleepInterrupt(INTERRUPT,CHANGE); } } void setRelayStatus(message_s message) { if (message.header.messageType==M_SET_VARIABLE && message.header.type==V_LIGHT) { int incomingRelayStatus = atoi(message.data); // Change relay state digitalWrite(message.header.childId, incomingRelayStatus==1?RELAY_ON:RELAY_OFF); // Write some debug info Serial.print("Incoming change for relay on pin:"); Serial.print(message.header.childId); Serial.print(", New status: "); Serial.println(incomingRelayStatus); } }I think I've overlooked something in order not for this to work
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Why not a default "multisensor" on the mysensors site at the example page? I see a lot of people like me who are new to arduino and looking for a multisensor sketch. For me the ultimate sensor is like the "roomnode" like a jeenode : Motion + light (LDR) + temp (ds18b20), where motion message is direct and the others once a minute or so.
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Why not a default "multisensor" on the mysensors site at the example page? I see a lot of people like me who are new to arduino and looking for a multisensor sketch. For me the ultimate sensor is like the "roomnode" like a jeenode : Motion + light (LDR) + temp (ds18b20), where motion message is direct and the others once a minute or so.
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:)
Perhaps we can get a list of preferred combinations and I can work on that alongside anyone else who may wish to do that too.
I'd like to help but also would like it 100% debugged before we publish.
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A common multi-sensors-combination is:
Motion + Light (LDR or Photo resistor) + DHT (Temp+Humidity)
I would prefer if the example sleeps Arduino+radio while doing nothing.
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@marceltrapman I'll second that :) I'm working on combining the Light-DHT but I'd really like to get the complete set going.
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What would be interesting is to make the multi-sensor sketch so that if we ran it either powered or on battery it would adjust its behaviour accordingly. Something like the AEON 4-in-1.
When you are on battery, it is all about conserving that power source, and while on mains, it is all about consistency of data updates and possibly adding other functionality.
Plus, I wanted to work on that LED idea so that we can broadcast a 'message' to a grouping of sensors and activate an (RGB) LED in the sensor.
Too much?
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What would be interesting is to make the multi-sensor sketch so that if we ran it either powered or on battery it would adjust its behaviour accordingly. Something like the AEON 4-in-1.
When you are on battery, it is all about conserving that power source, and while on mains, it is all about consistency of data updates and possibly adding other functionality.
Plus, I wanted to work on that LED idea so that we can broadcast a 'message' to a grouping of sensors and activate an (RGB) LED in the sensor.
Too much?
@BulldogLowell Good idea. Dunno if it is possible to recognise if it is battery powered or not.
But this is the way to go imho.
I think it is not a question of 'too much' but more 'is this even possible'? -
A common multi-sensors-combination is:
Motion + Light (LDR or Photo resistor) + DHT (Temp+Humidity)
I would prefer if the example sleeps Arduino+radio while doing nothing.
