port to ttgo t-beam

The T-Beam has only one builtin button, so disable zero feature for
now. We also have no buzzer, so also disable that. Maybe we can mimick
the buzzer with an LED.

Author: jwsbck

platformio.ini

@@ -10,7 +10,7 @@
 
 [env:sender]
 platform = espressif32
-board = ttgo-lora32-v1
+board = ttgo-t-beam
 framework = arduino
 src_filter = +<sender.cpp>
 lib_deps = 
@@ -21,8 +21,8 @@ lib_deps =
 monitor_speed = 115200
 
 [env:receiver]
-platform = espressif8266
-board = d1_mini
+platform = espressif32
+board = ttgo-t-beam
 framework = arduino
 src_filter = +<receiver.cpp>
 lib_deps = 

src/receiver.cpp

@@ -20,9 +20,12 @@ static const uint32_t GPSBaud = 9600;
 
 */
 
-#define SS      D0
-#define RST     D0
-#define DI0     D8
+#define SCK	5
+#define MISO	19
+#define MOSI	27
+#define SS      18
+#define RST     23
+#define DI0     26
 
 
 #define spreadingFactor 9
@@ -34,12 +37,12 @@ static const uint32_t GPSBaud = 9600;
 TinyGPSPlus gps;
 
 // The serial connection to the GPS device
-HardwareSerial receiverSerial(1);
-HardwareSerial GPSserial(2);
+HardwareSerial GPSserial(1);
+//HardwareSerial receiverSerial(1);
 
 #define FREQUENCY 868.9E6
 
-#define LEDPIN 5
+//#define LEDPIN 5
 
 
 double retFrequency;
@@ -118,7 +121,7 @@ void receivingMessage () {
   StaticJsonBuffer<500> jsonBuffer;
   char json[500];
   Serial.println("HIGH");
-  digitalWrite(LEDPIN, LOW);
+  //digitalWrite(LEDPIN, LOW);
 
   // Receive Message
 
@@ -153,7 +156,7 @@ void receivingMessage () {
     recMessage.printTo(Serial);
     //    Serial.println();
     Serial.println("LOW");
-    digitalWrite(LEDPIN, HIGH);
+    //digitalWrite(LEDPIN, HIGH);
     delay(200);
 
     // Send packet back
@@ -169,14 +172,14 @@ void receivingMessage () {
 }
 
 void initLoRa() {
-  SPI.begin();
-  LoRa.setPins(D0, D0, D8);
+  SPI.begin(SCK, MISO, MOSI, SS);
+  LoRa.setPins(SS, RST, DI0);
   if (!LoRa.begin(FREQUENCY)) {
     Serial.println("Starting LoRa failed!");
     while (1) {
-      digitalWrite(LEDPIN, 1);
+      //digitalWrite(LEDPIN, 1);
       delay(200);
-      digitalWrite(LEDPIN, 0);
+      //digitalWrite(LEDPIN, 0);
       delay(200);
     }
   }
@@ -194,10 +197,10 @@ void initLoRa() {
 
 void setup() {
   Serial.begin(115200);
-  pinMode(LEDPIN, OUTPUT);
-  digitalWrite(LEDPIN, 1);
+  //pinMode(LEDPIN, OUTPUT);
+  //digitalWrite(LEDPIN, 1);
   delay(1000);
-  digitalWrite(LEDPIN, 0);
+  //digitalWrite(LEDPIN, 0);
   GPSserial.begin(GPSBaud);
   initLoRa();
 }

src/sender.cpp

@@ -15,14 +15,16 @@ static const uint32_t GPSBaud = 9600;
 
 //GPIO16 OLED RESET
 
-
+#define SCK	5
+#define MISO	19
+#define MOSI	27
 #define SS      18
-#define RST     14
+#define RST     23
 #define DI0     26
 
-#define STARTPIN 25
-#define BUZZERPIN 13
-#define ZEROPIN 2
+#define STARTPIN 38
+//#define BUZZERPIN 13
+//#define ZEROPIN 2
 
 
 #define spreadingFactor 9
@@ -43,8 +45,7 @@ int power = 7;
 float average;
 float zero = 0;
 
-// SSD1306  display(0x3c, 21, 22); // TTGOV2
-SSD1306  display(0x3c, 4, 15); // TTGo V1
+SSD1306 display(0x3c, 21, 22); // TTGOV2
 
 // The serial connection to the GPS device
 HardwareSerial GPSserial(1);
@@ -203,9 +204,9 @@ double calculateCourse(double senderLat, double senderLng, double receiverLat, d
       senderLng);
   return courseTo;
 }
-void initLoRa() {
 
-  SPI.begin(5, 19, 27, 18);
+void initLoRa() {
+  SPI.begin(SCK, MISO, MOSI, SS);
   LoRa.setPins(SS, RST, DI0);
   if (!LoRa.begin(FREQUENCY)) {
     Serial.println("Starting LoRa failed!");
@@ -225,9 +226,20 @@ void initLoRa() {
 
 void buzz(int duration, int number) {
   for (int i = 0; i < number; i++) {
-    digitalWrite(BUZZERPIN, 1);
     delay(duration);
-    digitalWrite(BUZZERPIN, 0);
+
+void do_zero() {
+      zero = average;
+      Serial.print("Zero ");
+      Serial.println(zero);
+      display.clear();
+      display.setTextAlignment(TEXT_ALIGN_CENTER);
+      display.setFont(ArialMT_Plain_24);
+      display.drawString(64, 0, "Zero");
+      display.drawString(64, 35, "Button");
+      display.display();
+      //if (digitalRead(ZEROPIN) == 0);
+}
   }
 }
 
@@ -239,9 +251,9 @@ void setup()
   digitalWrite(16, HIGH);
   initDisplay();
   pinMode(STARTPIN, INPUT_PULLUP);
-  pinMode(ZEROPIN, INPUT_PULLUP);
-  pinMode(BUZZERPIN, OUTPUT);
-  digitalWrite(BUZZERPIN, 0);
+  //pinMode(ZEROPIN, INPUT_PULLUP);
+  //pinMode(BUZZERPIN, OUTPUT);
+  //digitalWrite(BUZZERPIN, 0);
   getPosition();
   initLoRa();
   display.clear();
@@ -309,20 +321,12 @@ void loop()
   display.drawString(64, 35, "Button");
   display.display();
 
-  while ((digitalRead(STARTPIN) == 1) &&  (digitalRead(ZEROPIN) == 1)) {
+  //while ((digitalRead(STARTPIN) == 1) &&  (digitalRead(ZEROPIN) == 1)) {
+  while ((digitalRead(STARTPIN) == 1)) {
     // Serial.print(digitalRead(ZEROPIN));
     delay(50);
-    if (digitalRead(ZEROPIN) == 0) {
-      zero = average;
-      Serial.print("Zero ");
-      Serial.println(zero);
-      display.clear();
-      display.setTextAlignment(TEXT_ALIGN_CENTER);
-      display.setFont(ArialMT_Plain_24);
-      display.drawString(64, 0, "Zero");
-      display.drawString(64, 35, "Button");
-      display.display();
-      if (digitalRead(ZEROPIN) == 0);
-    }
+    //if (digitalRead(ZEROPIN) == 0) {
+	    //do_zero();
+    //}
   }
 }