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2020-03-20 at 10:33 AM
#13967
My intent was to help you by giving you an example of something you could modify to your needs, not to give you a final working program.
This version will compile. I don’t know if it will actually work for your sensors or log data as expected. You will need to test that.
C++
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#include <SDI12.h> #include <SD.h> #include <Wire.h> #include <DS3232RTC.h> #include <Adafruit_MLX90614.h> #define DATA_PIN 3 SDI12 mySDI12(DATA_PIN); const int chipSelect = 10; unsigned long time; File logFile; Adafruit_MLX90614 sensor_52 = Adafruit_MLX90614(0x52); Adafruit_MLX90614 sensor_53 = Adafruit_MLX90614(0x53); Adafruit_MLX90614 sensor_03 = Adafruit_MLX90614(0x03); Adafruit_MLX90614 sensor_07 = Adafruit_MLX90614(0x07); // keeps track of the wait time for each active addresses uint8_t waitTime[8] = { 0, }; // keeps track of the time each sensor was started uint32_t millisStarted[8] = { 0, }; // keeps track of the time each sensor will be ready uint32_t millisReady[8] = { 0, }; // How many sensors to read uint8_t numSensors = 8; // converts allowable address characters '0'-'9', 'a'-'z', 'A'-'Z', // to a decimal number between 0 and 61 (inclusive) to cover the 62 possible addresses byte charToDec(char i){ if((i >= '0') && (i <= '9')) return i - '0'; if((i >= 'a') && (i <= 'z')) return i - 'a' + 10; if((i >= 'A') && (i <= 'Z')) return i - 'A' + 37; else return i; } void startConcurrentMeasurement(char i) { String command = ""; command += i; command += "C!"; // SDI-12 concurrent measurement command format [address]['C'][!] mySDI12.sendCommand(command); delay(30); // wait for acknowlegement with format [address][ttt (3 char, seconds)][number of measurments available, 0-9] String sdiResponse = ""; delay(30); while (mySDI12.available()) // build response string { char c = mySDI12.read(); if ((c != '\n') && (c != '\r')) { sdiResponse += c; delay(5); } } mySDI12.clearBuffer(); // find out how long we have to wait (in seconds). uint8_t wait = 0; wait = sdiResponse.substring(1, 4).toInt(); uint8_t sensorNum = charToDec(i); // e.g. convert '0' to 0, 'a' to 10, 'Z' to 61. waitTime[sensorNum] = wait; millisStarted[sensorNum] = millis(); millisReady[sensorNum] = millis() + wait * 1000; } void logSDI12Results(char i) { String command = ""; // in this example we will only take the 'DO' measurement command = ""; command += i; command += "D0!"; // SDI-12 command to get data [address][D][dataOption][!] mySDI12.sendCommand(command); // wait for acknowlegement uint32_t startMillis = millis(); while (!(mySDI12.available() > 7) && (millis() - startMillis < 5000L)) { } mySDI12.read(); // throw away the repeated address logFile.print(mySDI12.readStringUntil('+')); // read and log red band logFile.print(";"); logFile.print(mySDI12.readStringUntil('+')); // read and log nir band logFile.print(";"); logFile.print(mySDI12.readStringUntil('\n')); // read and log orientation logFile.print(";"); mySDI12.clearBuffer(); } void setup() { Serial.begin(115200); sensor_52.begin(); sensor_53.begin(); sensor_03.begin(); sensor_07.begin(); Wire.begin(); if (!SD.begin(chipSelect)) { return; } while (!Serial) ; mySDI12.begin(); delay(500); logFile = SD.open("hwheat.txt", FILE_WRITE); if (logFile) { logFile.println("fecha;hora;r_red;r_nir;r_orientation;r_red;r_nir;r_orientation;r_red;r_nir;r_orientation;r_532;r_570;orientation;r_532;r_570;orientation;r_532;r_570;orientation;i_532;i_570;orientation;r_red;r_nir;r_orientation;Temp1;Temp2;Temp3;Temp4"); logFile.close(); } } void lectura_sensores() { logFile.print(sensor_52.readObjectTempC()); logFile.print(";"); logFile.print(sensor_53.readObjectTempC()); logFile.print(";"); logFile.print(sensor_03.readObjectTempC()); logFile.print(";"); logFile.println(sensor_07.readObjectTempC()); } void loop() { time_t p; p = RTC.get(); logFile = SD.open("hwheat.txt", FILE_WRITE); if (logFile) { logFile.print(String(day(p)) + "/" + String(month(p)) + "/" + String(year(p)) + ";" + String(hour(p)) + ":" + String(minute(p)) + ":" + String(second(p))); // Start a concurrent measurement on all of the SDI-12 sensors for (char i = '0'; i < '8'; i++) { startConcurrentMeasurement(i); } // get all readings uint8_t numReadingsRecorded = 0; while (numReadingsRecorded < numSensors) { for (char i = '0'; i < '8'; i++) { if (millis() > millisReady[charToDec(i)]) { logSDI12Results(i); numReadingsRecorded++; } } } logFile.print(";"); lectura_sensores(); logFile.close(); } } |
