66 lines
1.5 KiB
C
66 lines
1.5 KiB
C
#include <SPI.h>
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#include "RF24.h"
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#include "TransferDataStructure.h"
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// Nrf24 settings
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byte addresses[][6] = {"1Node", "2Node"};
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RF24 radio(9, 10); // CE, CSN
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void NrfInit()
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{
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radio.begin();
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// Set the PA Level low to prevent power supply related issues since this is a
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// getting_started sketch, and the likelihood of close proximity of the devices. RF24_PA_MAX is default.
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radio.setPALevel(RF24_PA_LOW);
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radio.openWritingPipe(addresses[0]);
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radio.openReadingPipe(1, addresses[1]);
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// Possibly init data object here
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radio.startListening();
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}
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dataStruct2 NrfSendData(dataStruct2 data, bool debug = false)
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{
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radio.stopListening();
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// First, stop listening so we can talk.
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if (debug)
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Serial.println(F("Now sending"));
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if (!radio.write( &data, sizeof(data) )) {
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if (debug)
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Serial.println(F("failed"));
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return data;
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}
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radio.startListening();
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// Now, continue listening
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unsigned long started_waiting_at = micros();
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// Set up a timeout period, get the current microseconds
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boolean timeout = false;
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// Set up a variable to indicate if a response was received or not
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while ( ! radio.available() ) {
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if (micros() - started_waiting_at > 200000 ) {
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// If waited longer than 200ms, indicate timeout and exit while loop
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timeout = true;
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break;
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}
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}
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if ( timeout ) {
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if (debug)
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Serial.println(F("Failed, response timed out."));
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return data;
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} else {
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// Grab the response, compare, and send to debugging spew
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radio.read( &data, sizeof(data) );
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return data;
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}
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}
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