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
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.cpp
- Revision:
- 14:976a876819ae
- Parent:
- 13:5cbc726f2bbb
- Child:
- 16:a9b83d2b6915
--- a/NRF2401P.cpp Sat Jul 11 21:20:56 2015 +0000 +++ b/NRF2401P.cpp Sat Jul 11 22:17:36 2015 +0000 @@ -283,7 +283,6 @@ **/ void NRF2401P::writeReg( char address, char data ) { - char status = 0; char reg; csn = 0; address &= 0x1F; @@ -556,26 +555,24 @@ return isData; } -/** -* returns the width of the dynamic payload -*/ char NRF2401P::getRxWidth() { char width; if (dynamic) { csn = 0; - status = spi->write( 0x60 ); + status = spi->write( R_RX_PL_WID ); width = spi->write(0x00); csn = 1; - if (width>32) { + if (width>32) { // as per product spec flushRx(); + wait(0.002f); // little delay (KJN) width=0; } } else { readReg(RX_PW_P1, &width); // width of p1 } - // width=18; + return width; } @@ -734,7 +731,7 @@ } void NRF2401P::printDetails() { - char status = checkStatus(); + status = checkStatus(); printf("STATUS = 0x%02x RX_DR=%x TX_DS=%x MAX_RT=%x RX_P_NO=%x TX_FULL=%x\r\n", status, (status & (1<<MASK_RX_DR))?1:0, (status & (1<<MASK_TX_DS))?1:0,