58 lines
1.5 KiB
Plaintext
58 lines
1.5 KiB
Plaintext
/**
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* Example code for using a microchip mrf24j40 module to send simple packets
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*
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* Requirements: 3 pins for spi, 3 pins for reset, chip select and interrupt
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* notifications
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* This example file is considered to be in the public domain
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* Originally written by Karl Palsson, karlp@tweak.net.au, March 2011
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*/
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#include <SPI.h>
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#include <mrf24j.h>
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const int pin_reset = 6;
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const int pin_cs = 10; // default CS pin on ATMEGA8
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const int pin_interrupt = 2; // default interrupt pin on ATMEGA8
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Mrf24j mrf(pin_reset, pin_cs, pin_interrupt);
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long last_time;
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long tx_interval = 1000;
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void setup() {
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Serial.begin(9600);
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mrf.set_pan(0xcafe);
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// This is _our_ address
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mrf.address16_write(0x6001);
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attachInterrupt(0, interrupt_routine, CHANGE); // interrupt 0 equivalent to pin 2 on ATMEGA8
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last_time = millis();
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interrupts();
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}
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void interrupt_routine() {
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mrf.interrupt_handler(); // mrf24 object interrupt routine
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}
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void loop() {
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mrf.check_flags(&handle_rx, &handle_tx);
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unsigned long current_time = millis();
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if (current_time - last_time > tx_interval) {
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last_time = current_time;
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Serial.println("txxxing...");
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mrf.send16(0x4202, "abcd");
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}
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}
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void handle_rx() {
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// data to receive, nothing to do
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}
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void handle_tx() {
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if (mrf.get_txinfo()->tx_ok) {
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Serial.println("TX went ok, got ack");
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} else {
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Serial.print("TX failed after ");Serial.print(mrf.get_txinfo()->retries);Serial.println(" retries\n");
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}
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} |