Malcolm McCulloch / NRF2401P

This is a work in progress for an NRF2401P

Dependents:   NRF_receiver sender locker4 Weather_Station_Ofiicial ... more

About

This is a simple library to drive the nRF24l01+.

Hardware

This uses the commonly available breakout. The connections are shown below /media/uploads/epgmdm/nrf24l01pinout.png

Software

Use case: For a simple transmitter

tx code snipet

#include "NRF2401P.h"
int main() {
*
*  long long addr1=0xAB00CD; // setup address - any 5 byte number - same as RX
*  int channel =0x12;  // [0-126] setup channel, must be same as RX
*  bool txOK;
*  char msg[32];
*  char ackData[32];
*  char len;
*
*  // Setup 
*  NRF2401P nrf1(PTD6,PTD7, PTD5,PTD4, PTC12); //mosi, miso, sclk, csn, ce)
*  nrf1.quickTxSetup(channel, addr1); // sets nrf24l01+ as transmitter
*
*  // transmit
*  strcpy (msg, "Hello"); 
*  txOK= nrf1.transmitData(msg,strlen(msg));
*
*  // read ack data if available
*  if (nrf1.isAckData()) { 
*      len= nrf1.getRxData(ackData); // len is number of bytes in ackData
*   }
*}

Use case: For a simple receiver

rx code snipet

#include "NRF2401P.h"
*int main(){
*        
*  long long addr1=0xAB00CD; // setup address - any 5 byte number - same as TX
*  int channel =0x12;  // [0-126] setup channel, must be same as TX
*  bool txOK;
*  char msg[32];
*  char ackData[32];
*  char len;
*
*  // Setup 
*  NRF2401P nrf1(PTD6,PTD7, PTD5,PTD4, PTC12); //mosi, miso, sclk, csn, ce)
*  nrf1.quickRxSetup(channel, addr1); // sets nrf24l01+ as  receiver, using pipe 1
*
*  // set ack data
*  sprintf(ackData,"Ack data");
*  nrf1.acknowledgeData(ackData, strlen(ackData),1); // ack for pipe 1
*    
*  // receive
*  while (! nrf1.isRxData()); // note this blocks until RX data
*  len= nrf1.getRxData(msg); // gets the message, len is length of msg
*
*}

Diff: NRF2401P.h

Revision:
15:9998698cb041
Parent:
5:7e253c677a1f
--- a/NRF2401P.h	Fri Jun 12 09:55:02 2015 +0000
+++ b/NRF2401P.h	Thu Jun 18 20:54:25 2015 +0000
@@ -95,11 +95,11 @@
 
     NRF2401P (PinName mosi, PinName miso, PinName sclk, PinName _csn, PinName _ce);
 
-    char acknowledgeData( char *data, char width, char pipe);
+    void acknowledgeData( char *data, char width, char pipe);
     char checkStatus();
-    bool clearStatus();
-    bool flushRx();
-    bool flushTx();
+    void clearStatus();
+    void flushRx();
+    void flushTx();
     char getRxData(char * buffer);
     char getRxWidth();
     bool isAckData();
@@ -108,26 +108,26 @@
     void quickRxSetup(int channel,long long addr);
     void quickTxSetup(int channel,long long addr);
     char readReg(char address, char *data);
-    char testReceive();
-    char testTransmit();
+    void testReceive();
+    void testTransmit();
     bool transmitData( char *data, char width );
 
-    bool setAddressWidth(char width);
-    char setChannel(char chan);
+    void setAddressWidth(char width);
+    void setChannel(char chan);
     void setDynamicPayload();
-    bool setPwrUp();
-    char setRadio(char speed,char power);
-    char setRxAddress(char *address, char pipe);
-    char setRxAddress(long long address, char pipe);
+    void setPwrUp();
+    void setRadio(char speed,char power);
+    void setRxAddress(char *address, char pipe);
+    void setRxAddress(long long address, char pipe);
     bool setRxMode();
-    char setTxAddress(char *address);
-    char setTxAddress(long long address);
+    void setTxAddress(char *address);
+    void setTxAddress(long long address);
     bool setTxMode();
     void setTxRetry(char delay, char numTries);
     void start();
     char * statusString();
-    char writeReg(char address, char *data, char width);
-    char writeReg(char address, char data);
+    void writeReg(char address, char *data, char width);
+    void writeReg(char address, char data);
 
     void scratch();