Add initial code

6 files changed, 274 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
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+.pio
diff --git a/README.md b/README.md
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+NUCLEO-H743ZI APRS-LoRa Tracker
+===============================
+
+Connect u-blox NEO-M8N (or other u-blox receiver) to USART-B (RX PD5 and TX PD6) and RFM96 to SPI.
+
+See src/main.ino for definitions.
+
+
+
+This project requires: https://platform.io
+
+Compile:
+
+    pio run
+
+Program NUCLEO board:
+
+    pio run -t upload
diff --git a/include/README b/include/README
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+
+This directory is intended for project header files.
+
+A header file is a file containing C declarations and macro definitions
+to be shared between several project source files. You request the use of a
+header file in your project source file (C, C++, etc) located in `src` folder
+by including it, with the C preprocessing directive `#include'.
+
+```src/main.c
+
+#include "header.h"
+
+int main (void)
+{
+ ...
+}
+```
+
+Including a header file produces the same results as copying the header file
+into each source file that needs it. Such copying would be time-consuming
+and error-prone. With a header file, the related declarations appear
+in only one place. If they need to be changed, they can be changed in one
+place, and programs that include the header file will automatically use the
+new version when next recompiled. The header file eliminates the labor of
+finding and changing all the copies as well as the risk that a failure to
+find one copy will result in inconsistencies within a program.
+
+In C, the usual convention is to give header files names that end with `.h'.
+It is most portable to use only letters, digits, dashes, and underscores in
+header file names, and at most one dot.
+
+Read more about using header files in official GCC documentation:
+
+* Include Syntax
+* Include Operation
+* Once-Only Headers
+* Computed Includes
+
+https://gcc.gnu.org/onlinedocs/cpp/Header-Files.html
diff --git a/lib/README b/lib/README
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+
+This directory is intended for project specific (private) libraries.
+PlatformIO will compile them to static libraries and link into executable file.
+
+The source code of each library should be placed in a an own separate directory
+("lib/your_library_name/[here are source files]").
+
+For example, see a structure of the following two libraries `Foo` and `Bar`:
+
+|--lib
+|  |
+|  |--Bar
+|  |  |--docs
+|  |  |--examples
+|  |  |--src
+|  |     |- Bar.c
+|  |     |- Bar.h
+|  |  |- library.json (optional, custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html
+|  |
+|  |--Foo
+|  |  |- Foo.c
+|  |  |- Foo.h
+|  |
+|  |- README --> THIS FILE
+|
+|- platformio.ini
+|--src
+   |- main.c
+
+and a contents of `src/main.c`:
+```
+#include <Foo.h>
+#include <Bar.h>
+
+int main (void)
+{
+  ...
+}
+
+```
+
+PlatformIO Library Dependency Finder will find automatically dependent
+libraries scanning project source files.
+
+More information about PlatformIO Library Dependency Finder
+- https://docs.platformio.org/page/librarymanager/ldf.html
diff --git a/platformio.ini b/platformio.ini
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+++ b/platformio.ini
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+; PlatformIO Project Configuration File
+;
+;   Build options: build flags, source filter
+;   Upload options: custom upload port, speed and extra flags
+;   Library options: dependencies, extra library storages
+;   Advanced options: extra scripting
+;
+; Please visit documentation for the other options and examples
+; https://docs.platformio.org/page/projectconf.html
+
+[env:nucleo_h743zi]
+platform = ststm32
+board = nucleo_h743zi
+framework = arduino
+lib_deps = 
+	jgromes/RadioLib@^6.0.0
+	sparkfun/SparkFun u-blox GNSS Arduino Library@^2.2.22
diff --git a/src/main.ino b/src/main.ino
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+#include <Arduino.h>
+#include <RadioLib.h>
+#include <Wire.h>
+#include <SparkFun_u-blox_GNSS_Arduino_Library.h>
+
+// SX1278 has the following connections:
+// NSS pin:   10
+// DIO0 pin:  2
+// RESET pin: 9
+// DIO1 pin:  3
+RFM96 radio = new Module(10, 2, 9, 3);
+
+HardwareSerial SerialGNSS(PD6, PD5);
+SFE_UBLOX_GNSS gnss;
+long lastGnssPoll = 0;
+
+static char letterize(int x) {
+    return (char) x + 65;
+}
+static char* get_mh(double lat, double lon, int size) {
+    static char locator[11];
+    double LON_F[]={20,2.0,0.083333,0.008333,0.0003472083333333333};
+    double LAT_F[]={10,1.0,0.0416665,0.004166,0.0001735833333333333};
+    int i;
+    lon += 180;
+    lat += 90;
+
+    if (size <= 0 || size > 10) size = 6;
+    size/=2; size*=2;
+
+    for (i = 0; i < size/2; i++){
+        if (i % 2 == 1) {
+            locator[i*2] = (char) (lon/LON_F[i] + '0');
+            locator[i*2+1] = (char) (lat/LAT_F[i] + '0');
+        } else {
+            locator[i*2] = letterize((int) (lon/LON_F[i]));
+            locator[i*2+1] = letterize((int) (lat/LAT_F[i]));
+        }
+        lon = fmod(lon, LON_F[i]);
+        lat = fmod(lat, LAT_F[i]);
+    }
+    locator[i*2]=0;
+    return locator;
+}
+
+void setup() {
+    Serial.begin(9600);
+    pinMode(LED_BUILTIN, OUTPUT);
+
+    Wire.begin();
+
+    SerialGNSS.begin(9600);
+    if (!gnss.begin(SerialGNSS)) {
+        while (true) {
+            Serial.println(F("Check GNSS"));
+            delay(4000);
+        }
+    }
+
+    //gnss.enableDebugging(); // Uncomment this line to enable helpful debug messages on Serial
+
+    Serial.print(F("Version: "));
+    byte versionHigh = gnss.getProtocolVersionHigh();
+    Serial.print(versionHigh);
+    Serial.print(".");
+    byte versionLow = gnss.getProtocolVersionLow();
+    Serial.println(versionLow);
+
+#if 0
+    Serial.print(F("[RFM] Init "));
+    int state = radio.begin();
+    if (state == RADIOLIB_ERR_NONE) {
+        Serial.println(F("success!"));
+    } else {
+        Serial.print(F("failed, code "));
+        Serial.println(state);
+        while (true);
+    }
+
+    // radio.setRfSwitchPins(4, 5);
+#endif
+}
+
+void loop()
+{
+    const auto now = millis();
+    if (now - lastGnssPoll > 1000) {
+        lastGnssPoll = now;
+
+        long latitude = gnss.getLatitude();
+        Serial.print(F("Lat: "));
+        Serial.print(latitude);
+
+        long longitude = gnss.getLongitude();
+        Serial.print(F(" Long: "));
+        Serial.print(longitude);
+
+        char* locator = get_mh((double)latitude/1e7, (double)longitude/1e7, 6);
+        Serial.print(F(" Loc: "));
+        Serial.print(locator);
+
+        long altitude = gnss.getAltitude();
+        Serial.print(F(" Alt: "));
+        Serial.print(altitude);
+        Serial.print(F(" (mm)"));
+
+        long speed = gnss.getGroundSpeed();
+        Serial.print(F(" Speed: "));
+        Serial.print(speed);
+        Serial.print(F(" (mm/s)"));
+
+        long heading = gnss.getHeading();
+        Serial.print(F(" Heading: "));
+        Serial.print(heading);
+        Serial.print(F(" (degrees * 10^-5)"));
+
+        byte SIV = gnss.getSIV();
+        Serial.print(F(" SIV: "));
+        Serial.print(SIV);
+
+        Serial.println();
+    }
+}
+
+void loop2()
+{
+    digitalWrite(LED_BUILTIN, HIGH);
+    delay(1000);
+
+    Serial.print(F("[RFM] Transmitting packet ... "));
+
+    int state = radio.transmit("Hello World!");
+
+    if (state == RADIOLIB_ERR_NONE) {
+        Serial.println(F(" success!"));
+        Serial.print(F("[RFM] Datarate:\t"));
+        Serial.print(radio.getDataRate());
+        Serial.println(F(" bps"));
+
+    } else if (state == RADIOLIB_ERR_PACKET_TOO_LONG) {
+        Serial.println(F("too long!"));
+
+    } else if (state == RADIOLIB_ERR_TX_TIMEOUT) {
+        Serial.println(F("timeout!"));
+
+    } else {
+        Serial.print(F("failed, code "));
+        Serial.println(state);
+    }
+
+    digitalWrite(LED_BUILTIN, LOW);
+    delay(1000);
+}