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TTGO-T-Beam-LoRa-APRS
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Merge pull request #10 from Qyon/master_sq9mdd

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Master sq9mdd
pull/11/head
Rysiek Labus 2 years ago committed by GitHub
parent f9fd13cf53 b5ea517f2f
commit a367399d04
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GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 134 additions and 100 deletions
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  1. 1
      .gitignore
  2. 5
      include/taskGPS.h
  3. 196
      src/TTGO_T-Beam_LoRa_APRS.ino
  4. 7
      src/TTGO_T-Beam_LoRa_APRS_config.h
  5. 25
      src/taskGPS.cpp

1
.gitignore vendored
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@ -3,3 +3,4 @@
.piolibdeps
.clang_complete
.gcc-flags.json
.idea

5
include/taskGPS.h
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@ -0,0 +1,5 @@
#include <Arduino.h>
#include <TinyGPS++.h>
extern TinyGPSPlus gps;
void taskGPS(void *parameter);

196
src/TTGO_T-Beam_LoRa_APRS.ino
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@ -10,7 +10,6 @@
#include <Arduino.h>
#include <SPI.h>
#include <BG_RF95.h> // library from OE1ACM
#include <TinyGPS++.h>
#include <math.h>
#include <driver/adc.h>
#include <Wire.h>
@ -23,6 +22,7 @@
#include <gfxfont.h>
#include <axp20x.h>
#include <KISS_TO_TNC2.h>
#include "taskGPS.h"
#ifdef ENABLE_BLUETOOTH
#include "BluetoothSerial.h"
@ -38,20 +38,12 @@
//other global Variables
String Textzeile1, Textzeile2;
#ifdef KISS_PROTOCOLL
#ifdef KISS_PROTOCOL
String inTNCData = "";
#endif
//int button=0;
//int button_ctr=0;
// Pins for GPS
#ifdef T_BEAM_V1_0
static const int RXPin = 12, TXPin = 34; // changed BG A3 A2
#else
static const int RXPin = 15, TXPin = 12; // changed BG A3 A2
#endif
static const uint32_t GPSBaud = 9600; //GPS
// LED for signalling
#ifdef T_BEAM_V1_0
@ -110,9 +102,11 @@ float average_speed[5] = {0,0,0,0,0}, average_speed_final=0, max_speed=30, min_s
float old_course = 0, new_course = 0;
int point_avg_speed = 0, point_avg_course = 0;
ulong min_time_to_nextTX=60000L; // minimum time period between TX = 60000ms = 60secs = 1min
ulong max_time_to_nextTX= MAX_TIME_TO_NEXT_TX;
ulong nextTX=60000L; // preset time period between TX = 60000ms = 60secs = 1min
ulong time_to_refresh = 0;
ulong next_fixed_beacon = 0;
ulong fix_beacon_interval = FIX_BEACON_INTERVAL;
#define ANGLE 60 // angle to send packet at smart beaconing
#define ANGLE_AVGS 3 // angle averaging - x times
float average_course[ANGLE_AVGS];
@ -132,11 +126,8 @@ void displayInvalidGPS();
void handleKISSData(char character);
// SoftwareSerial ss(RXPin, TXPin); // The serial connection to the GPS device
HardwareSerial gpsSerial(1); // TTGO has HW serial
TinyGPSPlus gps; // The TinyGPS++ object
#ifdef T_BEAM_V1_0
AXP20X_Class axp;
AXP20X_Class axp;
#endif
// checkRX
@ -210,7 +201,7 @@ void recalcGPS(){
#elif
outString += ">APLM0:!";
#endif
if(gps_state==true && gps.location.isValid()){
outString += APRS_SYMBOL_TABLE;
ax25_base91enc(helper_base91, 4, aprs_lat);
@ -227,6 +218,10 @@ void recalcGPS(){
ax25_base91enc(helper_base91, 1, (uint32_t) (log1p(Tspeed)/0.07696));
outString += helper_base91[0];
outString += "\x48";
#ifdef SHOW_ALT
outString += "/A=";
outString += Altx;
#endif
}else{
outString += LATIDUDE_PRESET;
outString += APRS_SYMBOL_TABLE;
@ -234,27 +229,21 @@ void recalcGPS(){
outString += APRS_SYMBOL;
}
#ifdef SHOW_ALT
outString += "/A=";
outString += Altx;
#endif
outString += MY_COMMENT;
#ifdef SHOW_BATT // battery is not frame part move after comment
outString += " Batt=";
outString += String(BattVolts,2);
outString += String(BattVolts, 2);
outString += ("V");
#endif
#ifdef KISS_PROTOCOLL
#ifdef KISS_PROTOCOL
Serial.print(encode_kiss(outString));
#ifdef ENABLE_BLUETOOTH
if (SerialBT.connected()){
SerialBT.print(encode_kiss(outString));
}
if (SerialBT.connected()) {
SerialBT.print(encode_kiss(outString));
}
#endif
#else
Serial.println(outString);
#endif
@ -297,15 +286,21 @@ void loraSend(byte lora_LTXStart, byte lora_LTXEnd, byte lora_LTXPacketType, byt
}
void batt_read(){
#ifdef T_BEAM_V1_0
BattVolts = axp.getBattVoltage()/1000;
#else
BattVolts = analogRead(35)*7.221/4096;
#endif
}
void writedisplaytext(String HeaderTxt, String Line1, String Line2, String Line3, String Line4, String Line5, int warten) {
batt_read();
if (BattVolts < 3.5){
axp.setChgLEDMode(AXP20X_LED_BLINK_4HZ);
#ifdef T_BEAM_V1_0
axp.setChgLEDMode(AXP20X_LED_BLINK_4HZ);
#endif
}
display.clearDisplay();
display.setTextColor(WHITE);
display.setTextSize(2);
@ -326,13 +321,16 @@ void writedisplaytext(String HeaderTxt, String Line1, String Line2, String Line3
time_to_refresh = millis() + SHOW_RX_TIME;
}
/**
* Handle incoming TNC KISS data character
* @param character
*/
void handleKISSData(char character) {
inTNCData.concat(character);
if (character == (char)FEND && inTNCData.length() > 3){
writedisplaytext("((KISSTX))","","","","","",1);
time_to_refresh = millis() + SHOW_RX_TIME;
#ifdef KISS_PROTOCOLL
#ifdef KISS_PROTOCOL
const String &TNC2DataFrame = decode_kiss(inTNCData);
#ifdef LOCAL_KISS_ECHO
@ -357,7 +355,7 @@ String getSatAndBatInfo() {
line5 = "SAT: " + String(gps.satellites.value()) + " BAT: " + String(BattVolts, 1) + "V";
}else{
line5 = "SAT: X BAT: " + String(BattVolts, 1) + "V";
}
}
#ifdef ENABLE_BLUETOOTH
if (SerialBT.connected()){
line5 += "BT";
@ -392,24 +390,26 @@ void setup(){
#ifdef T_BEAM_V1_0
if (!axp.begin(Wire, AXP192_SLAVE_ADDRESS)) {
}
axp.setPowerOutPut(AXP192_LDO2, AXP202_ON); // Lora power
axp.setPowerOutPut(AXP192_LDO3, AXP202_ON); // provides power to GPS
}
axp.setPowerOutPut(AXP192_LDO2, AXP202_ON);
axp.setPowerOutPut(AXP192_LDO3, AXP202_ON); // switch on GPS
axp.setPowerOutPut(AXP192_DCDC2, AXP202_ON);
axp.setPowerOutPut(AXP192_EXTEN, AXP202_ON);
axp.setPowerOutPut(AXP192_DCDC1, AXP202_ON); // enables power to OLED LCD
axp.setPowerOutPut(AXP192_DCDC1, AXP202_ON);
axp.setDCDC1Voltage(3300);
// Enable ADC to measure battery current, USB voltage etc.
axp.adc1Enable(0xfe, true);
axp.adc2Enable(0x80, true);
#endif
if(!display.begin(SSD1306_SWITCHCAPVCC, SSD1306_ADDRESS)) {
for(;;); // Don't proceed, loop forever
}
writedisplaytext("LoRa-APRS","","Init:","Display OK!","","",1000);
Tcall = CALLSIGN;
relay_path = DIGI_PATH;
if (!rf95.init()) {
writedisplaytext("LoRa-APRS","","Init:","RF95 FAILED!",":-(","",250);
for(;;); // Don't proceed, loop forever
@ -419,40 +419,34 @@ void setup(){
max_time_to_nextTX=nextTX;
}
writedisplaytext("LoRa-APRS","","Init:","RF95 OK!","","",250);
gpsSerial.begin(GPSBaud, SERIAL_8N1, TXPin, RXPin); //Startup HW serial for GPS
writedisplaytext("LoRa-APRS","","Init:","GPS Serial OK!","","",250);
writedisplaytext(" "+Tcall,"","Init:","Waiting for GPS","","",250);
while (millis() < 5000 && gps.charsProcessed() < 10) {}
if (millis() > 5000 && gps.charsProcessed() < 10) {
writedisplaytext(" "+Tcall,"","Init:","ERROR!","No GPS data!","Please restart TTGO",0);
while (true) {}
}
writedisplaytext(" "+Tcall,"","Init:","Data from GPS OK!","","",250);
#ifdef T_BEAM_V1_0
writedisplaytext("LoRa-APRS","","Init:","ADC OK!","BAT: "+String(axp.getBattVoltage()/1000,1),"",250);
#else
xTaskCreate(taskGPS, "taskGPS", 10000, nullptr, 1, nullptr);
writedisplaytext(" "+Tcall,"","Init:","GPS Task Created!","","",250);
#ifndef T_BEAM_V1_0
adc1_config_width(ADC_WIDTH_BIT_12);
adc1_config_channel_atten(ADC1_CHANNEL_7,ADC_ATTEN_DB_6);
writedisplaytext("LoRa-APRS","","Init:","ADC OK!","BAT: "+String(analogRead(35)*7.221/4096,1),"",250);
#endif
batt_read();
writedisplaytext("LoRa-APRS","","Init:","ADC OK!","BAT: "+String(BattVolts,1),"",250);
rf95.setFrequency(433.775);
rf95.setModemConfig(BG_RF95::Bw125Cr45Sf4096); // hard coded because of double definition
rf95.setTxPower(20); // was 5
rf95.setTxPower(TXdbmW);
delay(250);
#ifdef ENABLE_BLUETOOTH
#ifdef BLUETOOTH_PIN
SerialBT.setPin(BLUETOOTH_PIN);
#ifdef ENABLE_BLUETOOTH
#ifdef BLUETOOTH_PIN
SerialBT.setPin(BLUETOOTH_PIN);
#endif
SerialBT.begin(String("TTGO LORA APRS ") + CALLSIGN);
writedisplaytext("LoRa-APRS","","Init:","BT OK!","","",250);
#endif
SerialBT.begin(String("TTGO LORA APRS ") + CALLSIGN);
writedisplaytext("LoRa-APRS","","Init:","BT OK!","","",250);
#endif
writedisplaytext("LoRa-APRS","","Init:","FINISHED OK!"," =:-) ","",250);
writedisplaytext("","","","","","",0);
time_to_refresh = millis() + SHOW_RX_TIME;
displayInvalidGPS();
digitalWrite(TXLED, HIGH);
axp.setChgLEDMode(AXP20X_LED_OFF);
#ifdef T_BEAM_V1_0
axp.setChgLEDMode(AXP20X_LED_OFF);
#endif
}
// +---------------------------------------------------------------------+//
@ -479,21 +473,25 @@ void loop() {
if(digitalRead(BUTTON)==LOW){
if(gps_state == true){
gps_state = false;
axp.setPowerOutPut(AXP192_LDO3, AXP202_OFF); // GPS OFF
#ifdef T_BEAM_V1_0
axp.setPowerOutPut(AXP192_LDO3, AXP202_OFF); // GPS OFF
#endif
writedisplaytext("((GPSOFF))","","","","","",1);
next_fixed_beacon = millis() + fix_beacon_interval;
}else{
gps_state = true;
axp.setPowerOutPut(AXP192_LDO3, AXP202_ON);
#ifdef T_BEAM_V1_0
axp.setPowerOutPut(AXP192_LDO3, AXP202_ON);
#endif
writedisplaytext("((GPS ON))","","","","","",1); // GPS ON
}
}
}
if(digitalRead(BUTTON)==HIGH && key_up == false){
if(digitalRead(BUTTON)==HIGH && key_up == false){
key_up = true;
}
#ifdef FIXED_BEACON_EN
if(millis() >= next_fixed_beacon && gps_state == false){
next_fixed_beacon = millis() + fix_beacon_interval;
@ -502,11 +500,7 @@ void loop() {
}
#endif
while (gpsSerial.available() > 0) {
gps.encode(gpsSerial.read());
}
#ifdef KISS_PROTOCOLL
#ifdef KISS_PROTOCOL
while (Serial.available() > 0 ){
char character = Serial.read();
handleKISSData(character);
@ -522,7 +516,9 @@ void loop() {
#endif
if (rf95.waitAvailableTimeout(100)) {
axp.setChgLEDMode(AXP20X_LED_LOW_LEVEL);
#ifdef T_BEAM_V1_0
axp.setChgLEDMode(AXP20X_LED_LOW_LEVEL);
#endif
#ifdef SHOW_RX_PACKET // only show RX packets when activitated in config
loraReceivedLength = sizeof(lora_RXBUFF); // reset max length before receiving!
if (rf95.recvAPRS(lora_RXBUFF, &loraReceivedLength)) {
@ -530,7 +526,7 @@ void loop() {
for (int i=0 ; i < loraReceivedLength ; i++) {
loraReceivedFrameString += (char) lora_RXBUFF[i];
}
#ifdef KISS_PROTOCOLL
#ifdef KISS_PROTOCOL
Serial.print(encode_kiss(loraReceivedFrameString));
#ifdef ENABLE_BLUETOOTH
if (SerialBT.connected()){
@ -541,7 +537,9 @@ void loop() {
writedisplaytext(" ((RX))", "", loraReceivedFrameString, "", "", "", SHOW_RX_TIME);
}
#endif
axp.setChgLEDMode(AXP20X_LED_OFF);
#ifdef T_BEAM_V1_0
axp.setChgLEDMode(AXP20X_LED_OFF);
#endif
}
LatShown = String(gps.location.lat(),5);
@ -574,7 +572,7 @@ void loop() {
if (new_course < 0) {
new_course=360+new_course;
}
if ((old_course < ANGLE) && (new_course > (360-ANGLE))) {
if (abs(new_course-old_course-360)>=ANGLE) {
nextTX = 0;
@ -594,10 +592,6 @@ void loop() {
old_course = new_course;
}
//if (button_ctr==2) {
// nextTX = 0;
//}
if ((millis()<max_time_to_nextTX)&&(lastTX == 0)) {
nextTX = 0;
}
@ -635,29 +629,37 @@ void loop() {
}
}
}
#ifdef KISS_PROTOCOLL
#ifdef KISS_PROTOCOL
#ifdef KISS_DEBUG
static auto last_debug_send_time = millis();
if (millis() - last_debug_send_time > 1000*10) {
last_debug_send_time = millis();
String debug_message = "";
debug_message += "Bat V: " + String(axp.getBattVoltage());
debug_message += ", ";
debug_message += "Bat IN A: " + String(axp.getBattChargeCurrent());
debug_message += ", ";
debug_message += "Bat OUT A: " + String(axp.getBattDischargeCurrent());
debug_message += ", ";
debug_message += "Bat %: " + String(axp.getBattPercentage());
debug_message += ", ";
debug_message += "USB V: " + String(axp.getVbusVoltage());
debug_message += ", ";
debug_message += "USB A: " + String(axp.getVbusCurrent());
debug_message += ", ";
debug_message += "Temp C: " + String(axp.getTemp());
Serial.print(encapsulateKISS(debug_message, CMD_HARDWARE));
}
static auto last_debug_send_time = millis();
if (millis() - last_debug_send_time > 1000*5) {
last_debug_send_time = millis();
String debug_message = "";
#ifdef T_BEAM_V1_0
debug_message += "Bat V: " + String(axp.getBattVoltage());
debug_message += ", ";
debug_message += "Bat IN A: " + String(axp.getBattChargeCurrent());
debug_message += ", ";
debug_message += "Bat OUT A: " + String(axp.getBattDischargeCurrent());
debug_message += ", ";
debug_message += "USB Plugged: " + String(axp.isVBUSPlug());
debug_message += ", ";
debug_message += "USB V: " + String(axp.getVbusVoltage());
debug_message += ", ";
debug_message += "USB A: " + String(axp.getVbusCurrent());
debug_message += ", ";
debug_message += "Temp C: " + String(axp.getTemp());
#else
debug_message += "Bat V: " + String(BattVolts);
#endif
Serial.print(encapsulateKISS(debug_message, CMD_HARDWARE));
#ifdef ENABLE_BLUETOOTH
SerialBT.print(encapsulateKISS(debug_message, CMD_HARDWARE));
#endif
}
#endif
#endif
vTaskDelay(1);
}
// end of main loop

7
src/TTGO_T-Beam_LoRa_APRS_config.h
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@ -6,7 +6,7 @@
// licensed under CC BY-NC-SA
// USER DATA - USE THESE LINES TO MODIFY YOUR PREFERENCES
#define KISS_PROTOCOLL // If enabled send and receive data in SIMPLE KISS format to serial port
#define KISS_PROTOCOL // If enabled send and receive data in SIMPLE KISS format to serial port
#define CALLSIGN "SQ9MDD-11" // enter your callsign here - less then 6 letter callsigns please add "spaces" so total length is 6 (without SSID)
#define DIGI_PATH "WIDE1-1" // one hope please (WIDE1-1)
#define FIXED_BEACON_EN // allows cyclic sending of a bicon when GPS is turned off
@ -27,6 +27,7 @@
//#define KISS_DEBUG
//#define LOCAL_KISS_ECHO // echoing KISS frame back
#define T_BEAM_V1_0 // if enabled t-beam v1.0 disabled t-beam V.0.7
//#define KISS_DEBUG
unsigned long max_time_to_nextTX = 360000L; // TRANSMIT INTERVAL set here MAXIMUM time in ms(!) for smart beaconing - minimum time is always 1 min = 60 secs = 60000L !!!
unsigned long fix_beacon_interval = 1800000L; // Fixed beacon interwal (when GPS is disabled and FIXED_BEACON_EN is enabled) 30min default
#define MAX_TIME_TO_NEXT_TX 360000L // TRANSMIT INTERVAL set here MAXIMUM time in ms(!) for smart beaconing - minimum time is always 1 min = 60 secs = 60000L !!!
#define FIX_BEACON_INTERVAL 1800000L // Fixed beacon interwal (when GPS is disabled and FIXED_BEACON_EN is enabled) 30min default

25
src/taskGPS.cpp
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@ -0,0 +1,25 @@
#include <taskGPS.h>
#include "TTGO_T-Beam_LoRa_APRS_config.h"
// Pins for GPS
#ifdef T_BEAM_V1_0
static const int RXPin = 12, TXPin = 34;
#else
static const int RXPin = 15, TXPin = 12;
#endif
static const uint32_t GPSBaud = 9600; //GPS
HardwareSerial gpsSerial(1); // TTGO has HW serial
TinyGPSPlus gps; // The TinyGPS++ object
bool gpsInitialized = false;
void taskGPS(void *parameter) {
if (!gpsInitialized){
gpsSerial.begin(GPSBaud, SERIAL_8N1, TXPin, RXPin); //Startup HW serial for GPS
}
for (;;) {
while (gpsSerial.available() > 0) {
gps.encode(gpsSerial.read());
}
vTaskDelay(100 / portTICK_PERIOD_MS);
}
}
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