Connecting a DS18b20 waterproof sensor to Sensebender micro
-
Dear all,
iam very new in mysensors forum, i want to start my first mysensors project. I already installed a WiFi gateway (ESP8266). Now i want to install my first sensor (Sensebender Micro) And i want to connect a waterproof DS18b20 (or maybe if possible two of them) Can somebody help me how to configure it? What do i have to add in "Default Sensor Sketch" of Sensebender Micro?/** * 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 * Default sensor sketch for Sensebender Micro module * Act as a temperature / humidity sensor by default. * * If A0 is held low while powering on, it will enter testmode, which verifies all on-board peripherals * * Battery voltage is as battery percentage (Internal message), and optionally as a sensor value (See defines below) * */ #include <MySensor.h> #include <Wire.h> #include <SI7021.h> #include <SPI.h> #include "utility/SPIFlash.h" #include <EEPROM.h> #include <sha204_lib_return_codes.h> #include <sha204_library.h> #include <RunningAverage.h> #include <avr/power.h> // Define a static node address, remove if you want auto address assignment //#define NODE_ADDRESS 3 // Uncomment the line below, to transmit battery voltage as a normal sensor value #define BATT_SENSOR 199 #define RELEASE "1.2" #define AVERAGES 2 // Child sensor ID's #define CHILD_ID_TEMP 1 #define CHILD_ID_HUM 2 // How many milli seconds between each measurement #define MEASURE_INTERVAL 60000 // FORCE_TRANSMIT_INTERVAL, this number of times of wakeup, the sensor is forced to report all values to the controller #define FORCE_TRANSMIT_INTERVAL 30 // When MEASURE_INTERVAL is 60000 and FORCE_TRANSMIT_INTERVAL is 30, we force a transmission every 30 minutes. // Between the forced transmissions a tranmission will only occur if the measured value differs from the previous measurement // HUMI_TRANSMIT_THRESHOLD tells how much the humidity should have changed since last time it was transmitted. Likewise with // TEMP_TRANSMIT_THRESHOLD for temperature threshold. #define HUMI_TRANSMIT_THRESHOLD 0.5 #define TEMP_TRANSMIT_THRESHOLD 0.5 // Pin definitions #define TEST_PIN A0 #define LED_PIN A2 #define ATSHA204_PIN 17 // A3 const int sha204Pin = ATSHA204_PIN; atsha204Class sha204(sha204Pin); SI7021 humiditySensor; SPIFlash flash(8, 0x1F65); MySensor gw; // Sensor messages MyMessage msgHum(CHILD_ID_HUM, V_HUM); MyMessage msgTemp(CHILD_ID_TEMP, V_TEMP); #ifdef BATT_SENSOR MyMessage msgBatt(BATT_SENSOR, V_VOLTAGE); #endif // Global settings int measureCount = 0; int sendBattery = 0; boolean isMetric = true; boolean highfreq = true; // Storage of old measurements float lastTemperature = -100; int lastHumidity = -100; long lastBattery = -100; RunningAverage raHum(AVERAGES); /**************************************************** * * Setup code * ****************************************************/ void setup() { pinMode(LED_PIN, OUTPUT); digitalWrite(LED_PIN, LOW); Serial.begin(115200); Serial.print(F("Sensebender Micro FW ")); Serial.print(RELEASE); Serial.flush(); // First check if we should boot into test mode pinMode(TEST_PIN,INPUT); digitalWrite(TEST_PIN, HIGH); // Enable pullup if (!digitalRead(TEST_PIN)) testMode(); // Make sure that ATSHA204 is not floating pinMode(ATSHA204_PIN, INPUT); digitalWrite(ATSHA204_PIN, HIGH); digitalWrite(TEST_PIN,LOW); digitalWrite(LED_PIN, HIGH); #ifdef NODE_ADDRESS gw.begin(NULL, NODE_ADDRESS, false); #else gw.begin(NULL,AUTO,false); #endif humiditySensor.begin(); digitalWrite(LED_PIN, LOW); Serial.flush(); Serial.println(F(" - Online!")); gw.sendSketchInfo("Sensebender Micro", RELEASE); gw.present(CHILD_ID_TEMP,S_TEMP); gw.present(CHILD_ID_HUM,S_HUM); #ifdef BATT_SENSOR gw.present(BATT_SENSOR, S_POWER); #endif isMetric = gw.getConfig().isMetric; Serial.print(F("isMetric: ")); Serial.println(isMetric); raHum.clear(); sendTempHumidityMeasurements(false); sendBattLevel(false); } /*********************************************** * * Main loop function * ***********************************************/ void loop() { measureCount ++; sendBattery ++; bool forceTransmit = false; if ((measureCount == 5) && highfreq) { clock_prescale_set(clock_div_8); // Switch to 1Mhz for the reminder of the sketch, save power. highfreq = false; } if (measureCount > FORCE_TRANSMIT_INTERVAL) { // force a transmission forceTransmit = true; measureCount = 0; } gw.process(); sendTempHumidityMeasurements(forceTransmit); if (sendBattery > 60) { sendBattLevel(forceTransmit); // Not needed to send battery info that often sendBattery = 0; } gw.sleep(MEASURE_INTERVAL); } /********************************************* * * Sends temperature and humidity from Si7021 sensor * * Parameters * - force : Forces transmission of a value (even if it's the same as previous measurement) * *********************************************/ void sendTempHumidityMeasurements(bool force) { bool tx = force; si7021_env data = humiditySensor.getHumidityAndTemperature(); float oldAvgHum = raHum.getAverage(); raHum.addValue(data.humidityPercent); float diffTemp = abs(lastTemperature - (isMetric ? data.celsiusHundredths : data.fahrenheitHundredths)/100); float diffHum = abs(oldAvgHum - raHum.getAverage()); Serial.print(F("TempDiff :"));Serial.println(diffTemp); Serial.print(F("HumDiff :"));Serial.println(diffHum); if (isnan(diffHum)) tx = true; if (diffTemp > TEMP_TRANSMIT_THRESHOLD) tx = true; if (diffHum >= HUMI_TRANSMIT_THRESHOLD) tx = true; if (tx) { measureCount = 0; float temperature = (isMetric ? data.celsiusHundredths : data.fahrenheitHundredths) / 100.0; int humidity = data.humidityPercent; Serial.print("T: ");Serial.println(temperature); Serial.print("H: ");Serial.println(humidity); gw.send(msgTemp.set(temperature,1)); gw.send(msgHum.set(humidity)); lastTemperature = temperature; lastHumidity = humidity; } } /******************************************** * * Sends battery information (battery percentage) * * Parameters * - force : Forces transmission of a value * *******************************************/ void sendBattLevel(bool force) { if (force) lastBattery = -1; long vcc = readVcc(); if (vcc != lastBattery) { lastBattery = vcc; #ifdef BATT_SENSOR gw.send(msgBatt.set(vcc)); #endif // Calculate percentage vcc = vcc - 1900; // subtract 1.9V from vcc, as this is the lowest voltage we will operate at long percent = vcc / 14.0; gw.sendBatteryLevel(percent); } } /******************************************* * * Internal battery ADC measuring * *******************************************/ long readVcc() { // Read 1.1V reference against AVcc // set the reference to Vcc and the measurement to the internal 1.1V reference #if defined(__AVR_ATmega32U4__) || defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) ADMUX = _BV(REFS0) | _BV(MUX4) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1); #elif defined (__AVR_ATtiny24__) || defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) ADMUX = _BV(MUX5) | _BV(MUX0); #elif defined (__AVR_ATtiny25__) || defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__) ADcdMUX = _BV(MUX3) | _BV(MUX2); #else ADMUX = _BV(REFS0) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1); #endif delay(2); // Wait for Vref to settle ADCSRA |= _BV(ADSC); // Start conversion while (bit_is_set(ADCSRA,ADSC)); // measuring uint8_t low = ADCL; // must read ADCL first - it then locks ADCH uint8_t high = ADCH; // unlocks both long result = (high<<8) | low; result = 1125300L / result; // Calculate Vcc (in mV); 1125300 = 1.1*1023*1000 return result; // Vcc in millivolts } /**************************************************** * * Verify all peripherals, and signal via the LED if any problems. * ****************************************************/ void testMode() { uint8_t rx_buffer[SHA204_RSP_SIZE_MAX]; uint8_t ret_code; byte tests = 0; digitalWrite(LED_PIN, HIGH); // Turn on LED. Serial.println(F(" - TestMode")); Serial.println(F("Testing peripherals!")); Serial.flush(); Serial.print(F("-> SI7021 : ")); Serial.flush(); if (humiditySensor.begin()) { Serial.println(F("ok!")); tests ++; } else { Serial.println(F("failed!")); } Serial.flush(); Serial.print(F("-> Flash : ")); Serial.flush(); if (flash.initialize()) { Serial.println(F("ok!")); tests ++; } else { Serial.println(F("failed!")); } Serial.flush(); Serial.print(F("-> SHA204 : ")); ret_code = sha204.sha204c_wakeup(rx_buffer); Serial.flush(); if (ret_code != SHA204_SUCCESS) { Serial.print(F("Failed to wake device. Response: ")); Serial.println(ret_code, HEX); } Serial.flush(); if (ret_code == SHA204_SUCCESS) { ret_code = sha204.getSerialNumber(rx_buffer); if (ret_code != SHA204_SUCCESS) { Serial.print(F("Failed to obtain device serial number. Response: ")); Serial.println(ret_code, HEX); } else { Serial.print(F("Ok (serial : ")); for (int i=0; i<9; i++) { if (rx_buffer[i] < 0x10) { Serial.print('0'); // Because Serial.print does not 0-pad HEX } Serial.print(rx_buffer[i], HEX); } Serial.println(")"); tests ++; } } Serial.flush(); Serial.println(F("Test finished")); if (tests == 3) { Serial.println(F("Selftest ok!")); while (1) // Blink OK pattern! { digitalWrite(LED_PIN, HIGH); delay(200); digitalWrite(LED_PIN, LOW); delay(200); } } else { Serial.println(F("----> Selftest failed!")); while (1) // Blink FAILED pattern! Rappidly blinking.. { } } }Thank you so much!
Hello! It looks like you're interested in this conversation, but you don't have an account yet.
Getting fed up of having to scroll through the same posts each visit? When you register for an account, you'll always come back to exactly where you were before, and choose to be notified of new replies (either via email, or push notification). You'll also be able to save bookmarks and upvote posts to show your appreciation to other community members.
With your input, this post could be even better 💗
Register Login