Wireless sensor network to log LDR and Potentiometer values on Serial terminal. Wireless module used is NRF24L01P. This is the transmitter code.

Dependencies:   mbed nRF24L01P

Fork of kl25Z_nRF_TX by Ganesh Gore

Files at this revision

API Documentation at this revision

Comitter:
janhavi
Date:
Tue May 24 10:11:04 2016 +0000
Parent:
0:19a03658bf70
Commit message:
WSN logging LDR and POT data over NRF.

Changed in this revision

Transmitter.cpp Show annotated file Show diff for this revision Revisions of this file
diff -r 19a03658bf70 -r 52659fc8b32a Transmitter.cpp
--- a/Transmitter.cpp	Mon Jun 01 05:20:18 2015 +0000
+++ b/Transmitter.cpp	Tue May 24 10:11:04 2016 +0000
@@ -1,50 +1,55 @@
 #include "mbed.h"
 #include "nRF24L01P.h"
-
+ 
 Serial pc(USBTX, USBRX); // tx, rx
-
-nRF24L01P my_nrf24l01p(PTD6, PTE3, PTE2, PTB8, PTB9, PTD0);    // mosi, miso, sck, csn, ce, irq
+ 
+nRF24L01P my_nrf24l01p(PTD2, PTD3, PTD1, PTD0, PTD5, PTD4);    // mosi, miso, sck, csn, ce, irq
 DigitalOut RedLED(LED1);
-
+AnalogIn ldr(A1);
+AnalogIn pot(A0);
+ 
 int main()
 {
     char count[2];
     char TxDataCnt;
     char temp;
-
-
+ 
     my_nrf24l01p.powerUp();
     my_nrf24l01p.setRfFrequency(2410);
-
+ 
     // Display the (default) setup of the nRF24L01+ chip
     pc.printf( "nRF24L01+ Frequency    : %d MHz\r\n",  my_nrf24l01p.getRfFrequency() );
     pc.printf( "nRF24L01+ Output power : %d dBm\r\n",  my_nrf24l01p.getRfOutputPower() );
     pc.printf( "nRF24L01+ Data Rate    : %d kbps\r\n", my_nrf24l01p.getAirDataRate() );
     pc.printf( "nRF24L01+ TX Address   : 0x%010llX\r\n", my_nrf24l01p.getTxAddress() );
     pc.printf( "nRF24L01+ RX Address   : 0x%010llX\r\n", my_nrf24l01p.getRxAddress() );
-
-    pc.printf( "Simple Transmitter (0 - 9 Counter) \r\n");
-
+ 
+    pc.printf( "Wirelesss sensor network \r\n");
+        
     TxDataCnt = 2;
     my_nrf24l01p.setTransferSize(TxDataCnt);
-
+ 
     my_nrf24l01p.enable();
-
-    count[0] = 0x01;
-    count[1] = 0x01;
-
+    
+    char ldr_val, pot_val;
+    
     while (1) {
-
+        
+        //adjusting data to 0-255 with char data type
+        ldr_val = 255*(ldr.read());
+        pot_val = 255*(pot.read());
+        
+        count[0] = ldr_val;
+        count[1] = pot_val;
+        
         // Send the Transmit buffer via the nRF24L01+
         temp = my_nrf24l01p.write( NRF24L01P_PIPE_P0,count, TxDataCnt );
-
-        pc.printf( "Sending %d - %d %d\r\n",temp,count[0],count[1]);
-
+ 
+        pc.printf( "Sending %d bytes; LDR=%d, POT=%d\r\n",temp,count[0], count[1]);
+ 
         // Toggle LED1 (to help debug Host -> nRF24L01+ communication)
         RedLED = !RedLED;
-            
-        count[1]++;
-        
+          
         wait(1);
     }
-}
+}
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