110 lines
2.3 KiB
C++
110 lines
2.3 KiB
C++
/*********
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Rui Santos
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Complete project details at https://RandomNerdTutorials.com/ttgo-lora32-sx1276-arduino-ide/
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*********/
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//Libraries for LoRa
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#include <SPI.h>
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#include <LoRa.h>
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//Libraries for OLED Display
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#include <Wire.h>
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#include <Adafruit_GFX.h>
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#include <Adafruit_SSD1306.h>
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//define the pins used by the LoRa transceiver module
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#define SCK 5
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#define MISO 19
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#define MOSI 27
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#define SS 18
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#define RST 14
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#define DIO0 26
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//433E6 for Asia
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//866E6 for Europe
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//915E6 for North America
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#define BAND 866E6
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//OLED pins
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#define OLED_SDA 4
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#define OLED_SCL 15
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#define OLED_RST 16
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#define SCREEN_WIDTH 128 // OLED display width, in pixels
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#define SCREEN_HEIGHT 64 // OLED display height, in pixels
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//packet counter
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int counter = 0;
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Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RST);
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void setup() {
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//reset OLED display via software
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pinMode(OLED_RST, OUTPUT);
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digitalWrite(OLED_RST, LOW);
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delay(20);
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digitalWrite(OLED_RST, HIGH);
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//initialize OLED
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Wire.begin(OLED_SDA, OLED_SCL);
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if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3c, false, false)) { // Address 0x3C for 128x32
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Serial.println(F("SSD1306 allocation failed"));
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for(;;); // Don't proceed, loop forever
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}
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display.clearDisplay();
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display.setTextColor(WHITE);
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display.setTextSize(1);
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display.setCursor(0,0);
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display.print("LORA SENDER ");
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display.display();
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//initialize Serial Monitor
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Serial.begin(115200);
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Serial.println("LoRa Sender Test");
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//SPI LoRa pins
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SPI.begin(SCK, MISO, MOSI, SS);
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//setup LoRa transceiver module
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LoRa.setPins(SS, RST, DIO0);
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if (!LoRa.begin(BAND)) {
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Serial.println("Starting LoRa failed!");
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while (1);
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}
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Serial.println("LoRa Initializing OK!");
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display.setCursor(0,10);
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display.print("LoRa Initializing OK!");
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display.display();
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delay(2000);
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}
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void loop() {
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Serial.print("Sending packet: ");
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Serial.println(counter);
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//Send LoRa packet to receiver
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LoRa.beginPacket();
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LoRa.print("hello ");
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LoRa.print(counter);
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LoRa.endPacket();
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display.clearDisplay();
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display.setCursor(0,0);
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display.println("LORA SENDER");
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display.setCursor(0,20);
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display.setTextSize(1);
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display.print("LoRa packet sent.");
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display.setCursor(0,30);
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display.print("Counter:");
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display.setCursor(50,30);
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display.print(counter);
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display.display();
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counter++;
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delay(1000);
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}
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