122 lines
4.0 KiB
Arduino
122 lines
4.0 KiB
Arduino
/*
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Configuring the GNSS to automatically send NAV SAT reports over I2C and display them using a callback
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By: Paul Clark
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SparkFun Electronics
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Date: December 1st, 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 configure the u-blox GNSS to send NAV SAT reports automatically
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and access the data via a callback. No more polling!
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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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Hardware Connections:
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Plug a Qwiic cable into the GPS 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 GPS
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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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// Callback: newNAVSAT will be called when new NAV SAT data arrives
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// See u-blox_structs.h for the full definition of UBX_NAV_SAT_data_t
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// _____ You can use any name you like for the callback. Use the same name when you call setAutoNAVSATcallback
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// / _____ This _must_ be UBX_NAV_SAT_data_t
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// | / _____ You can use any name you like for the struct
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// | | /
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// | | |
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void newNAVSAT(UBX_NAV_SAT_data_t *ubxDataStruct)
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{
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Serial.println();
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Serial.print(F("New NAV SAT data received. It contains data for "));
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Serial.print(ubxDataStruct->header.numSvs);
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if (ubxDataStruct->header.numSvs == 1)
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Serial.println(F(" SV."));
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else
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Serial.println(F(" SVs."));
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// Just for giggles, print the signal strength for each SV as a barchart
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for (uint16_t block = 0; block < ubxDataStruct->header.numSvs; block++) // For each SV
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{
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switch (ubxDataStruct->blocks[block].gnssId) // Print the GNSS ID
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{
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case 0:
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Serial.print(F("GPS "));
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break;
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case 1:
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Serial.print(F("SBAS "));
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break;
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case 2:
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Serial.print(F("Galileo "));
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break;
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case 3:
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Serial.print(F("BeiDou "));
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break;
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case 4:
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Serial.print(F("IMES "));
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break;
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case 5:
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Serial.print(F("QZSS "));
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break;
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case 6:
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Serial.print(F("GLONASS "));
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break;
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default:
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Serial.print(F("UNKNOWN "));
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break;
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}
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Serial.print(ubxDataStruct->blocks[block].svId); // Print the SV ID
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if (ubxDataStruct->blocks[block].svId < 10) Serial.print(F(" "));
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else if (ubxDataStruct->blocks[block].svId < 100) Serial.print(F(" "));
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else Serial.print(F(" "));
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// Print the signal strength as a bar chart
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for (uint8_t cno = 0; cno < ubxDataStruct->blocks[block].cno; cno++)
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Serial.print(F("="));
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Serial.println();
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}
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}
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void setup()
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{
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Serial.begin(115200);
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while (!Serial); //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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//myGNSS.enableDebugging(); // Uncomment this line to enable helpful debug messages on Serial
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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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myGNSS.setI2COutput(COM_TYPE_UBX); //Set the I2C port to output UBX only (turn off NMEA noise)
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myGNSS.saveConfigSelective(VAL_CFG_SUBSEC_IOPORT); //Save (only) the communications port settings to flash and BBR
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myGNSS.setNavigationFrequency(1); //Produce one solution per second
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myGNSS.setAutoNAVSATcallbackPtr(&newNAVSAT); // Enable automatic NAV SAT messages with callback to newNAVSAT
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}
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void loop()
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{
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myGNSS.checkUblox(); // Check for the arrival of new data and process it.
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myGNSS.checkCallbacks(); // Check if any callbacks are waiting to be processed.
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Serial.print(".");
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delay(50);
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}
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