Interval/sleep sensor settings
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Let's assume I have a temperature sensor and let's assume I want to set it to sleep for 30 minutes before reporting any change (if any) makes me thing the following:
- Is it possible to change this interval through the controller/gateway currently or can I and do I need to add this myself?
- When I do this the sensor is asleep and can not receive any request from the controller (if I am correct). Will the request be queued or do I have to create a queue on the controller?
- When I have to create a queue on the controller how is it reported that the request did not arrive?
- And, lastly, is it possible to wake the sensor up with a special request (I assume not)?
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here is my solution for dht-22 battery driven sensor:
#include <Sleep_n0m1.h> #include <SPI.h> #include <EEPROM.h> #include <RF24.h> #include <Sensor.h> #include <DHT.h> // Set RADIO_ID to something unique in your sensor network (1-254) // or set to AUTO if you want gw to assign a RADIO_ID for you. #define RADIO_ID AUTO #define CHILD_ID_HUM 0 #define CHILD_ID_TEMP 1 #define HUMIDITY_SENSOR_DIGITAL_PIN 3 // Send the Battery Percentage to the Gateway #define VBatMax 4.0 // The voltage of New Batteries #define VBatDropout 2.0 // The battery dropout voltage unsigned long SLEEP_TIME = 30; // Sleep time between reads (in seconds) float SENSOR_TOLERANCE = 0.1; // Tempereture or humidity sensetive change +- 0.1 will not go to data transmit unsigned long SEND_FREQ = 1; // If the temperature doesn't change for this period, force data transition of battery level to reset TTL on vera gate. 1 = means send each time the sensor wake-up unsigned long SETTINGS_REQ_FREQ = 1; // How often node reqsts a new settings 1 = means req. each time the sensor wake-up. NOTE: Settings reqsts each time the sensor resets. int BATTERY_SENSE_PIN = A0; // select the input pin for the battery sense point struct port_param_t{String name; String value;}; #define MAX_PARAMS 20 // ������� ���������� ����������� �� ����� ������� port_param_t params[MAX_PARAMS]; // � ���� ������ ����� ��������� ���� ��������� ��������� byte parsedParams=0; // ������� ���������� ��� ������� ��������� Sensor gw(9, 10); DHT dht; Sleep sleep; float lastTemp; float lastHum; float lastSend = 0; float lastReq = 0; float lastBattLevel; boolean metric = true; void setup() { delay(2000); // use the 1.1 V internal reference analogReference(INTERNAL); Serial.begin(BAUD_RATE); // Used to type in characters gw.begin(RADIO_ID); dht.setup(HUMIDITY_SENSOR_DIGITAL_PIN); gw.sendSketchInfo("Humidity", "1.2"); // Register all sensors to gw (they will be created as child devices) gw.sendSensorPresentation(CHILD_ID_HUM, S_HUM); gw.sendSensorPresentation(CHILD_ID_TEMP, S_TEMP); metric = gw.isMetricSystem(); veraCfgread(); } void veraCfgread() { char* defCfg="1,1,30,1"; char* Cfg = gw.getStatus(RADIO_ID, V_VAR1); // getting cfg Serial.println("parsed:"); parseParams(Cfg); if (parsedParams==0) gw.sendVariable(RADIO_ID, V_VAR1, defCfg); else { SENSOR_TOLERANCE = float(strtoint(params[0].value))/10; SEND_FREQ = strtoint(params[1].value); SLEEP_TIME = strtoint(params[2].value); SETTINGS_REQ_FREQ = strtoint(params[3].value); } Serial.print(SENSOR_TOLERANCE); Serial.print(","); Serial.print(SEND_FREQ); Serial.print(","); Serial.print(SLEEP_TIME); Serial.print(","); Serial.print(SETTINGS_REQ_FREQ); Serial.print("."); } // Read the Battery long readVcc() { long result; // Read 1.1V reference against AVcc ADMUX = _BV(REFS0) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1); delay(2); // Wait for Vref to settle ADCSRA |= _BV(ADSC); // Convert while (bit_is_set(ADCSRA,ADSC)); result = ADCL; result |= ADCH<<8; result = 1125300L / result; // Back-calculate AVcc in mV return result; } int strtoint(String str) // ��������� ��������������� ������ � ����� { int tempInt; char rez[str.length()+1]; str.toCharArray(rez, sizeof(rez)); tempInt = atoi(rez); return tempInt; } void parseParams(char* inputString) { parsedParams=0; // ���� ������ �� ��������� String message = inputString; int commaPosition; // the position of the next comma in the string do { commaPosition = message.indexOf(','); if(commaPosition != -1) { params[parsedParams].value = message.substring(0,commaPosition); parsedParams++; message = message.substring(commaPosition+1, message.length()); } else { // here after the last comma is found if(message.length() > 0) params[parsedParams].value = message; // if there is text after the last comma } } while(commaPosition >=0); } void loop() { lastSend--; lastReq--; // -1------------------------------------------ delay(dht.getMinimumSamplingPeriod()); float temperature = dht.getTemperature(); if (isnan(temperature)) { Serial.println("Failed reading temperature from DHT"); } else if (temperature != lastTemp || lastSend == 0) { Serial.print("TR: "); Serial.println(temperature); float delta = lastTemp - temperature; delta = abs (delta); if (delta > SENSOR_TOLERANCE || lastSend == 0) { lastTemp = temperature; if (!metric) { temperature = dht.toFahrenheit(temperature); } gw.sendVariable(CHILD_ID_TEMP, V_TEMP, temperature, 1); Serial.print("T: "); Serial.println(temperature); } } // -2------------------------------------------ float humidity = dht.getHumidity(); if (isnan(humidity)) { Serial.println("Failed reading humidity from DHT"); } else if (humidity != lastHum || lastSend == 0) { Serial.print("HR: "); Serial.println(humidity); float delta = lastHum - humidity; delta = abs (delta); if (delta > SENSOR_TOLERANCE || lastSend == 0) { lastHum = humidity; Serial.println(lastSend); if (lastSend <= 0) lastSend = SEND_FREQ; Serial.print("LastSndAfter: "); Serial.println(lastSend); if (lastReq <= 0) { veraCfgread(); lastReq = SETTINGS_REQ_FREQ; } // -3------------------------------------------ long curVcc;// = readVcc(); float pct; // = (curVcc-(VBatDropout*1000)) /(((VBatMax-VBatDropout) *1000))*100; int sensorValue = analogRead(BATTERY_SENSE_PIN); float batteryV = sensorValue * 0.003363075; int batteryPcnt = sensorValue / 10; curVcc = batteryV*1000; pct = batteryPcnt; if (pct != lastBattLevel) { lastBattLevel = pct; gw.sendBatteryLevel(pct); /*Serial.print("Batt%: "); Serial.println(pct); Serial.print("Vcc: "); Serial.println(batteryV);*/ gw.sendVariable(RADIO_ID, V_VAR2, curVcc); } // ------------------------------------------- // Power down the radio. Note that the radio will get powered back up // on the next write() call. delay(1000); //delay to allow serial to fully print before sleep gw.powerDown(); sleep.pwrDownMode(); //set sleep mode sleep.sleepDelay(SLEEP_TIME * 1000); //sleep for: sleepTime } gw.sendVariable(CHILD_ID_HUM, V_HUM, humidity, 1); Serial.print("H: "); Serial.println(humidity); } } // ------------------------------------------- Serial.print("LastSndBefore: "); -
Wow thank you but... Can you please correct the formatting :)
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Thanks for the example @mitekg
Took the liberty to fix the formatting in your post.
Start a line with 4 spaces or tab to format as code.
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@hek, thx4fix!)
@marceltrapman, if u have any questions, u r welcome)
