103 lines
3.1 KiB
Arduino
103 lines
3.1 KiB
Arduino
/*
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Getting Unix Epoch Time and micros using u-blox commands
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By: UT2UH
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Date: March 30th, 2021
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License: MIT. See license file for more information but you can
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basically do whatever you want with this code.
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This example shows how to query a u-blox module for the current time and date as Unix Epoch uint32_t type to avoid time.h dependency.
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We also turn off the NMEA output on the I2C port. This decreases the amount of I2C traffic dramatically.
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Leave NMEA parsing behind. Now you can simply ask the module for the datums you want!
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Feel like supporting open source hardware?
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Buy a board from SparkFun!
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ZED-F9P RTK2: https://www.sparkfun.com/products/15136
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NEO-M8P RTK: https://www.sparkfun.com/products/15005
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SAM-M8Q: https://www.sparkfun.com/products/15106
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Hardware Connections:
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Plug a Qwiic cable into the GNSS and a BlackBoard
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If you don't have a platform with a Qwiic connection use the SparkFun Qwiic Breadboard Jumper (https://www.sparkfun.com/products/14425)
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Open the serial monitor at 115200 baud to see the output
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*/
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#include <Wire.h> //Needed for I2C to GNSS
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#include <SparkFun_u-blox_GNSS_Arduino_Library.h> //http://librarymanager/All#SparkFun_u-blox_GNSS
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SFE_UBLOX_GNSS myGNSS;
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long lastTime = 0; //Simple local timer. Limits amount if I2C traffic to u-blox module.
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uint32_t us; //microseconds returned by getUnixEpoch()
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void setup()
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{
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Serial.begin(115200);
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while (!Serial)
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; //Wait for user to open terminal
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Serial.println("SparkFun u-blox Example");
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Wire.begin();
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if (myGNSS.begin() == false) //Connect to the u-blox module using Wire port
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{
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Serial.println(F("u-blox GNSS not detected at default I2C address. Please check wiring. Freezing."));
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while (1)
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;
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}
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myGNSS.setI2COutput(COM_TYPE_UBX); //Set the I2C port to output UBX only (turn off NMEA noise)
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//myGNSS.saveConfiguration(); //Optional: Save the current settings to flash and BBR
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Serial.println("Compare Unix Epoch given with reference one from https://www.epochconverter.com/");
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}
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void loop()
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{
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//Query module only every second. Doing it more often will just cause I2C traffic.
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//The module only responds when a new position is available
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if (millis() - lastTime > 1000)
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{
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lastTime = millis(); //Update the timer
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byte SIV = myGNSS.getSIV();
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Serial.print(F(" SIV: "));
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Serial.print(SIV);
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Serial.print(" ");
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Serial.print(myGNSS.getYear());
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Serial.print("-");
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Serial.print(myGNSS.getMonth());
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Serial.print("-");
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Serial.print(myGNSS.getDay());
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Serial.print(" ");
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Serial.print(myGNSS.getHour());
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Serial.print(":");
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Serial.print(myGNSS.getMinute());
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Serial.print(":");
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Serial.print(myGNSS.getSecond());
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Serial.print(" getUnixEpoch(micros): ");
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Serial.print(myGNSS.getUnixEpoch(us));
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Serial.print(" micros: ");
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Serial.print(us, DEC);
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Serial.print(" Time is ");
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if (myGNSS.getTimeValid() == false)
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{
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Serial.print("not ");
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}
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Serial.print("valid ");
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if (myGNSS.getConfirmedTime() == false)
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{
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Serial.print("but not ");
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} else {
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Serial.print("and ");
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}
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Serial.print("confirmed");
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Serial.println();
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}
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} |