Add random number sender example

2015-09-22 16:05:59 -04:00 · 2015-09-22 16:05:59 -04:00 · b3d5432c69
parent 8d0334e154
commit b3d5432c69
1 changed files with 93 additions and 0 deletions
--- a/Examples/RandomNumbers/RandomNumbers.ino
+++ b/Examples/RandomNumbers/RandomNumbers.ino
@ -0,0 +1,93 @@
+// Sample RFM69 random temperature sender at fixed intervals (F)
+// Library and code by Felix Rusu - felix@lowpowerlab.com
+// Get the RFM69 library at: https://github.com/LowPowerLab/
+#include <RFM69.h>    //get it here: https://www.github.com/lowpowerlab/rfm69
+#include <SPI.h>
+
+#define NODEID        98    //unique for each node on same network
+#define NETWORKID     100  //the same on all nodes that talk to each other
+#define GATEWAYID     1
+//Match frequency to the hardware version of the radio on your Moteino (uncomment one):
+#define FREQUENCY     RF69_433MHZ
+#define FREQUENCY     RF69_915MHZ
+#define IS_RFM69HW   //uncomment only for RFM69HW! Leave out if you have RFM69W!
+#define ENCRYPTKEY    "sampleEncryptKey" //exactly the same 16 characters/bytes on all nodes!
+#define ACK_TIME      30 // max # of ms to wait for an ack
+
+#ifdef __AVR_ATmega1284P__
+  #define LED           15 // Moteino MEGAs have LEDs on D15
+  #define FLASH_SS      23 // and FLASH SS on D23
+#else
+  #define LED           9 // Moteinos have LEDs on D9
+  #define FLASH_SS      8 // and FLASH SS on D8
+#endif
+
+#define SERIAL_BAUD   115200
+
+int TRANSMITPERIOD = 10000; //transmit a packet to gateway so often (in ms)
+char buff[35];
+byte sendSize=0;
+RFM69 radio;
+
+void setup() {
+  Serial.begin(SERIAL_BAUD);
+  radio.initialize(FREQUENCY,NODEID,NETWORKID);
+#ifdef IS_RFM69HW
+  radio.setHighPower(); //uncomment only for RFM69HW!
+#endif
+  radio.encrypt(ENCRYPTKEY);
+  
+  char buff[50];
+  sprintf(buff, "\nTransmitting at %d Mhz...", FREQUENCY==RF69_433MHZ ? 433 : FREQUENCY==RF69_868MHZ ? 868 : 915);
+  Serial.println(buff);
+}
+
+long lastPeriod = 0;
+long randNumber1 = 0;
+long randNumber2 = 0;
+void loop() {
+  if (radio.receiveDone())
+  {
+    Serial.print('[');Serial.print(radio.SENDERID, DEC);Serial.print("] ");
+    for (byte i = 0; i < radio.DATALEN; i++)
+      Serial.print((char)radio.DATA[i]);
+    Serial.print("   [RX_RSSI:");Serial.print(radio.RSSI);Serial.print("]");
+
+    if (radio.ACKRequested())
+    {
+      radio.sendACK();
+      Serial.print(" - ACK sent");
+    }
+    Blink(LED,3);
+    Serial.println();
+  }
+
+  int currPeriod = millis()/TRANSMITPERIOD;
+  if (currPeriod != lastPeriod)
+  {
+    lastPeriod=currPeriod;
+    randNumber1 = random(99);
+    randNumber2 = random(99);
+
+    if (randNumber2 > 70)
+      sprintf(buff, "F:%d.5", randNumber1);
+    else
+      sprintf(buff, "F:-%d.5", randNumber1);
+    sendSize = strlen(buff);
+    
+    if (radio.sendWithRetry(GATEWAYID, buff, sendSize))
+     Serial.print(" ok!");
+    else Serial.print(" nothing...");
+
+    Serial.println();
+    Blink(LED,3);
+  }
+}
+
+void Blink(byte PIN, int DELAY_MS)
+{
+  pinMode(PIN, OUTPUT);
+  digitalWrite(PIN,HIGH);
+  delay(DELAY_MS);
+  digitalWrite(PIN,LOW);
+}