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-rw-r--r--tracker-stm32/src/main.cpp170
1 files changed, 145 insertions, 25 deletions
diff --git a/tracker-stm32/src/main.cpp b/tracker-stm32/src/main.cpp
index e452712..7c2a273 100644
--- a/tracker-stm32/src/main.cpp
+++ b/tracker-stm32/src/main.cpp
@@ -2,7 +2,11 @@
// This file is a bit of a mess, because first it contained aprs434 compressed
// code running on STM32H7, and now it contains traditional APRS-over-LoRa for STM32F1
#include <Arduino.h>
+
+#if defined(SEMIHOSTING)
#include <SemihostingStream.h>
+#endif
+
#include <RadioLib.h>
#include <Wire.h>
#include <TinyGPS++.h>
@@ -28,22 +32,15 @@ constexpr int ENCODER_SW_8 = PB15;
constexpr int BAT_MEAS = PA0;
-// Date Type Codes defined in aprs434.github.io
-constexpr int DATA_TYPE_CODE_GEOLOCATION = 0;
-constexpr int DATA_TYPE_CODE_STATUS_REPORT = 1;
-
// TODO: read these settings from the SD Card
-constexpr char CALLSIGN[] = "HB9EGM";
-constexpr int SSID = 7;
constexpr char CALLSIGN_SSID_PATH[] = "HB9EGM-7>APZEGM";
-constexpr int PATH_CODE = 2; // metropolitan mobile
constexpr char SYMBOL_TABLE_IDENTIFIER = '/';
constexpr char SYMBOL_CODE_BICYCLE = 'b';
constexpr char SYMBOL_CODE_FOOT = '[';
constexpr long REPORT_TX_INTERVAL = 181000;
constexpr long TEXT_TX_INTERVAL = 47000;
-constexpr char TEXT_REPORT[] = "mpb.li/git/lora-aprs-hb9egm"; // Max length=28
+constexpr char TEXT_REPORT[] = "mpb.li/git/lora-aprs-hb9egm"; // Max length=28 for compressed
#if 0
@@ -68,7 +65,9 @@ constexpr size_t MAX_REPORT_LEN = 48;
size_t report_len = 0;
uint8_t report[MAX_REPORT_LEN];
+#if defined(SEMIHOSTING)
SemihostingStream sh;
+#endif
static char letterize(int x) {
return (char) x + 65;
@@ -76,7 +75,21 @@ static char letterize(int x) {
void setup() {
Wire.begin();
+ SerialUSB.begin();
pinMode(LED_STATUSn, OUTPUT);
+ pinMode(LED_TXn, OUTPUT);
+ digitalWrite(LED_TXn, HIGH);
+
+ digitalWrite(EN_PA, LOW);
+ pinMode(EN_PA, OUTPUT);
+ digitalWrite(EN_RX, LOW);
+ pinMode(EN_RX, OUTPUT);
+
+ pinMode(ENCODER_SW_1, INPUT_PULLUP);
+ pinMode(ENCODER_SW_2, INPUT_PULLUP);
+ pinMode(ENCODER_SW_4, INPUT_PULLUP);
+ pinMode(ENCODER_SW_8, INPUT_PULLUP);
+ pinMode(BTN1n, INPUT);
#if 0
pinMode(SD_CS, OUTPUT);
@@ -87,64 +100,82 @@ void setup() {
}
#endif
- sh.print(F("START"));
serialGNSS.begin(9600);
+#if defined(SEMIHOSTING)
sh.print(F("[RFM] Init "));
+#endif
int state = radio.begin(433.775);
if (state == RADIOLIB_ERR_NONE) {
+#if defined(SEMIHOSTING)
sh.println(F("success!"));
+#endif
} else {
+#if defined(SEMIHOSTING)
sh.print(F("failed, code "));
sh.println(state);
+#endif
while (true);
}
if (radio.setBandwidth(125.0) == RADIOLIB_ERR_INVALID_BANDWIDTH) {
+#if defined(SEMIHOSTING)
sh.println(F("Selected bandwidth is invalid for this module!"));
+#endif
while (true);
}
if (radio.setSpreadingFactor(12) == RADIOLIB_ERR_INVALID_SPREADING_FACTOR) {
+#if defined(SEMIHOSTING)
sh.println(F("Selected spreading factor is invalid for this module!"));
+#endif
while (true);
}
if (radio.setCodingRate(5) == RADIOLIB_ERR_INVALID_CODING_RATE) {
+#if defined(SEMIHOSTING)
sh.println(F("Selected coding rate is invalid for this module!"));
+#endif
while (true);
}
// NOTE: value 0x34 is reserved for LoRaWAN networks and should not be used
if (radio.setSyncWord(0x14) != RADIOLIB_ERR_NONE) {
+#if defined(SEMIHOSTING)
sh.println(F("Unable to set sync word!"));
+#endif
while (true);
}
if (radio.setOutputPower(20) == RADIOLIB_ERR_INVALID_OUTPUT_POWER) {
+#if defined(SEMIHOSTING)
sh.println(F("Selected output power is invalid for this module!"));
+#endif
while (true);
}
if (radio.setPreambleLength(8) == RADIOLIB_ERR_INVALID_PREAMBLE_LENGTH) {
+#if defined(SEMIHOSTING)
sh.println(F("Selected preamble length is invalid for this module!"));
+#endif
while (true);
}
// radio.setRfSwitchPins(4, 5);
+
+ digitalWrite(LED_STATUSn, HIGH);
}
static void handle_radio_error(int state)
{
+#if defined(SEMIHOSTING)
if (state == RADIOLIB_ERR_NONE) {
sh.print(F(" RFM OK Datarate: "));
sh.print(radio.getDataRate());
sh.println(F(" bps"));
-
}
else if (state == RADIOLIB_ERR_PACKET_TOO_LONG) {
sh.println(F(" too long!"));
-
}
else if (state == RADIOLIB_ERR_TX_TIMEOUT) {
sh.println(F(" timeout!"));
@@ -154,6 +185,7 @@ static void handle_radio_error(int state)
sh.print(F(" failed, code "));
sh.println(state);
}
+#endif
}
void append_position_report()
@@ -192,6 +224,28 @@ void append_position_report()
report[report_len++] = 0x47;
}
+static void init_report()
+{
+ report_len = 0;
+
+ report[report_len++] = '<';
+ report[report_len++] = 0xFF;
+ report[report_len++] = 0x01;
+
+ const char* p = CALLSIGN_SSID_PATH;
+ while (*p) {
+ report[report_len++] = *(p++);
+ }
+}
+
+static int read_encoder()
+{
+ return 15 - (digitalRead(ENCODER_SW_1) +
+ 2 * digitalRead(ENCODER_SW_2) +
+ 4 * digitalRead(ENCODER_SW_4) +
+ 8 * digitalRead(ENCODER_SW_8));
+}
+
void loop()
{
while (serialGNSS.available() > 0) {
@@ -202,6 +256,56 @@ void loop()
if (now - lastGnssPoll > 1000) {
lastGnssPoll = now;
+ const int encoder_value = read_encoder();
+ const bool btn1 = digitalRead(BTN1n) == 0;
+ digitalWrite(LED_TXn, not btn1);
+
+ if (encoder_value == 1) {
+ digitalWrite(EN_RX, HIGH);
+ digitalWrite(EN_PA, LOW);
+ }
+ else if (encoder_value == 2) {
+ digitalWrite(EN_RX, LOW);
+ digitalWrite(EN_PA, HIGH);
+ }
+ else {
+ digitalWrite(EN_RX, LOW);
+ digitalWrite(EN_PA, LOW);
+ }
+
+ if (SerialUSB) {
+ const long latitude = gps.location.lat();
+ SerialUSB.print(F("Lat "));
+ SerialUSB.print(latitude);
+
+ const long longitude = gps.location.lng();
+ SerialUSB.print(F(" Lon "));
+ SerialUSB.print(longitude);
+
+ const byte SIV = gps.satellites.value();
+ SerialUSB.print(F(" SIV: "));
+ SerialUSB.print(SIV);
+
+ SerialUSB.print(F(" Enc: "));
+ SerialUSB.print(encoder_value);
+
+ SerialUSB.print(F(" BTN: "));
+ SerialUSB.println((int)btn1);
+ }
+ }
+}
+
+void oldloop()
+{
+ while (serialGNSS.available() > 0) {
+ gps.encode(serialGNSS.read());
+ }
+
+ const auto now = millis();
+ if (now - lastGnssPoll > 1000) {
+ lastGnssPoll = now;
+
+#if 0
const long latitude = gps.location.lat();
sh.print(F("Lat "));
sh.print(latitude);
@@ -213,23 +317,14 @@ void loop()
const byte SIV = gps.satellites.value();
sh.print(F(" SIV: "));
sh.println(SIV);
+#endif
+
if (now - lastPositionReport > REPORT_TX_INTERVAL) {
lastPositionReport = now;
- digitalWrite(LED_STATUSn, LOW);
-
- report_len = 0;
-
- report[report_len++] = '<';
- report[report_len++] = 0xFF;
- report[report_len++] = 0x01;
-
- const char* p = CALLSIGN_SSID_PATH;
- while (*p) {
- report[report_len++] = *p;
- p++;
- }
+ digitalWrite(LED_TXn, LOW);
+ init_report();
report[report_len++] = ':';
report[report_len++] = '!';
report[report_len++] = SYMBOL_TABLE_IDENTIFIER;
@@ -237,12 +332,37 @@ void loop()
int state = radio.transmit(report, report_len);
handle_radio_error(state);
- digitalWrite(LED_STATUSn, HIGH);
+ digitalWrite(LED_TXn, HIGH);
+ }
+ }
+
+ if (now - lastTextReport > TEXT_TX_INTERVAL) {
+ lastTextReport = now;
+ digitalWrite(LED_TXn, LOW);
+
+ init_report();
+ report[report_len++] = ':';
+ report[report_len++] = '>';
+ const char* p = TEXT_REPORT;
+ while (*p) {
+ report[report_len++] = *(p++);
}
+
+ int state = radio.transmit(report, report_len);
+ handle_radio_error(state);
+
+ digitalWrite(LED_TXn, HIGH);
}
}
#if 0
+// Date Type Codes defined in aprs434.github.io
+constexpr int DATA_TYPE_CODE_GEOLOCATION = 0;
+constexpr int DATA_TYPE_CODE_STATUS_REPORT = 1;
+constexpr char CALLSIGN[] = "HB9EGM";
+constexpr int SSID = 7;
+constexpr int PATH_CODE = 2; // metropolitan mobile
+
void loop()
{
while (serialGNSS.available() > 0) {
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 14:35:35 +0000