55 lines
1.3 KiB
Plaintext
55 lines
1.3 KiB
Plaintext
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/**
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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 = 7;
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const int pin_interrupt = 5;
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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);
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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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// read and clear interrupt flags from the radio
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byte last_interrupt = mrf.read_short(MRF_INTSTAT);
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// we don't care about the rx acks, but we need them to be flushed so it can keep receiving
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if (last_interrupt & MRF_I_RXIF) {
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mrf.write_short(MRF_RXFLUSH, 0x01);
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}
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}
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void loop() {
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int tmp;
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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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char * msg = "hello world";
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mrf.send16(0x4202, strlen(msg), msg);
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}
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}
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