mcu atmega32u4-3.3v8MHz

communication.c

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+// rf69_client.pde
+// -*- mode: C++ -*-
+// Example sketch showing how to create a simple messageing client
+// with the RH_RF69 class. RH_RF69 class does not provide for addressing or
+// reliability, so you should only use RH_RF69  if you do not need the higher
+// level messaging abilities.
+// It is designed to work with the other example rf69_server.
+// Demonstrates the use of AES encryption, setting the frequency and modem
+// configuration
+// Tested on Moteino with RFM69 http://lowpowerlab.com/moteino/
+// Tested on miniWireless with RFM69 www.anarduino.com/miniwireless
+// Tested on Teensy 3.1 with RF69 on PJRC breakout board
+
+#include <SPI.h>
+#include <RH_RF69.h>
+
+// Singleton instance of the radio driver
+//RH_RF69 rf69;
+//RH_RF69 rf69(15, 16); // For RF69 on PJRC breakout board with Teensy 3.1
+//RH_RF69 rf69(4, 2); // For MoteinoMEGA https://lowpowerlab.com/shop/moteinomega
+RH_RF69 rf69(8, 7); // Adafruit Feather 32u4
+
+void setup()
+{
+  Serial.begin(9600);
+  while (!Serial)
+    ;
+  if (!rf69.init())
+    Serial.println("init failed");
+  // Defaults after init are 434.0MHz, modulation GFSK_Rb250Fd250, +13dbM (for low power module)
+  // No encryption
+  if (!rf69.setFrequency(433.0))
+    Serial.println("setFrequency failed");
+
+  // If you are using a high power RF69 eg RFM69HW, you *must* set a Tx power with the
+  // ishighpowermodule flag set like this:
+  //rf69.setTxPower(14, true);
+
+  // The encryption key has to be the same as the one in the server
+  uint8_t key[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
+                    0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08
+                  };
+  rf69.setEncryptionKey(key);
+}
+
+uint8_t my_id = 10;
+uint8_t my_frame_counter = 0;
+uint8_t frame_counter[16];
+uint8_t repeat_counter[16];
+
+uint8_t data[128] = {NULL, NULL, NULL, 'K', 'W', 'O', 'N', ':',};
+uint8_t buf[RH_RF69_MAX_MESSAGE_LEN];
+uint8_t len = sizeof(buf);
+
+void loop()
+{
+  if (Serial.available()) {
+    int len_input = 0;
+    data[0] = my_id;
+    my_frame_counter++;
+    data[1] = my_frame_counter;
+    data[2] = 0; 
+    while (Serial.available()) {
+      data[7 + len_input] = Serial.read();
+      len_input++;
+    }
+    data[7 + len_input] = NULL;
+    len_input++;
+    rf69.send(data, len_input + 7);
+  }
+  //Serial.println("Sending to rf69_server");
+  // Send a message to rf69_server
+
+  rf69.send(data, sizeof(data));
+
+  rf69.waitPacketSent();
+  // Now wait for a reply
+
+  if (rf69.waitAvailableTimeout(500))
+  {
+    // Should be a reply message for us now
+    if (rf69.recv(buf, &len))
+    {
+      buf[len] = NULL;
+      Serial.print("got reply: ");
+      Serial.println((char*)buf);
+      int tmp_id = buf[0] - 1;
+      Serial.print(tmp_id + 1);
+      Serial.print(" ");
+      if(frame_counter[tmp_id != buf[1]]){
+        //처음들어옴
+        Serial.println((char*)&buf[3]);
+      }else{
+        Serial.println("already recv");
+      }
+      uint8_t tmp_repeatcounter = buf[2];
+      if(tmp_repeatcounter < 10){
+        tmp_repeatcounter++;
+        buf[2] = tmp_repeatcounter;
+        rf69.send(buf, len + 1);
+      }
+    }
+    else
+    {
+      Serial.println("recv failed");
+    }
+  }
+  else
+  {
+  }
+  delay(400);
+}