Added Receive class based off of the 900MHx_RX_Test.cpp. Make it easi…

…er to test rather than copying and pasting everything onto main.:w

teensy_software/test/Receive.cpp

@@ -0,0 +1,72 @@
+#include "Receive.h"
+
+// Custom pinout for teensy 4.1
+#define RFM95_CS     10  // "B"
+#define RFM95_INT    0 // "C"
+#define RFM95_RST    1  // "A"
+#define RFM95_IRQN   RFM69_INT
+#define TRANSMITTER_POWER 23 
+
+Receive::Receive(){
+    // Setting pinouts
+    rf95(RFM95_CS, RFM95_INT);
+
+    pinMode(LED_BUILTIN, OUTPUT);
+    pinMode(RFM95_RST, OUTPUT);
+    digitalWrite(RFM95_RST, HIGH);
+
+    // Initializing radio
+    while (!rf95.init()){
+        Serial.println("LoRa radio init failed");
+        Serial.println("Uncomment '#define SERIAL_DEBUG' in RH_RF95.cpp for detailed debug info");
+    }
+    Serial.println("LoRa radio initialized!");
+
+    // Setting frequency of radio
+    // Note: Frequency must be same as RX
+    if (!rf95.setFrequency(RF95_FREQ)) {
+        Serial.println("setFrequency failed");
+    }
+
+    // Setting transmit power.
+    Serial.print("Setting frequency to: ");
+    Serial.println(RFM95_CS);
+
+    rf95.setTxPower(TRANSMITTER_POWER, false);
+}
+
+void _getMessage(int bufferSize){
+    const int secondBufferSize = 140;
+    uint8_t buf[RH_RF95_MAX_MESSAGE_LEN];
+    uint8_t len = sizeof(buf);
+
+    if (rf95.recv(buf, &len)) {
+      digitalWrite(LED_BUILTIN, HIGH);
+      RH_RF95::printBuffer("Received: ", buf, len);
+      Serial.print("Got: ");
+
+      Serial.println((char*)buf);
+
+      char secondBuffer[secondBufferSize];
+      snprintf(buffer1, sizeof(buffer1), "The value of the received message is: %s\n", (char*)buf);
+
+      Serial.print("RSSI: ");
+      Serial.println(rf95.lastRssi(), DEC);
+
+      _sendAck();
+    } else {
+        Serial.println("Receive failed!");
+    }
+}
+
+void _sendAck(){
+    // ACK message
+    uint8_t data[] = "And hello back to you";
+
+    // Sending the packet
+    rf95.send(data, sizeof(data));
+    rf95.waitPacketSent();
+    Serial.println("Sent a reply");
+    digitalWrite(LED_BUILTIN, LOW);
+}
+

teensy_software/test/Receive.h

@@ -0,0 +1,26 @@
+#pragma once
+
+#include·"Arduino.h"                                                                    #include·<Adafruit_BME680.h>
+#include·<Adafruit_I2CDevice.h>
+#include·<Adafruit_Sensor.h>
+#include·"Wire.h"
+#include·<SPI.h>
+#include·<RH_RF95.h>
+
+class Receive {
+public: 
+    /* Initializes the pins and ports of the rf95 */
+    Receive();
+
+    /* Tries to find the message, and prints out the message's output */
+    void _getMessage(int bufferSize);
+
+    _changeFrequency();
+
+private:
+    /* Returns an ACK to the transimitter */
+    void _sendAck();
+
+    /* Singleton instance of the radio driver */
+    RH_RF95 rf95;
+}