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rf24-pio
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This commit is contained in:
maniacbug 2011-07-08 22:15:37 -07:00
parent 062d83346b
commit d5a3e79c66
8 changed files with 192 additions and 190 deletions
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1
.gitignore vendored
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@ -1,5 +1,6 @@
*.o
.*.swp
*.orig
docs/
output/
ojam/

74
examples/led_remote/led_remote.pde
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@ -1,22 +1,22 @@
/*
Copyright (C) 2011 James Coliz, Jr. <maniacbug@ymail.com>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
version 2 as published by the Free Software Foundation.
*/
/**
* Example LED Remote
* Example LED Remote
*
* This is an example of how to use the RF24 class to control a remote
* bank of LED's using buttons on a remote control.
*
* On the 'remote', connect any number of buttons or switches from
* On the 'remote', connect any number of buttons or switches from
* an arduino pin to ground. Update 'button_pins' to reflect the
* pins used.
*
* On the 'led' board, connect the same number of LED's from an
* On the 'led' board, connect the same number of LED's from an
* arduino pin to a resistor to ground. Update 'led_pins' to reflect
* the pins used. Also connect a separate pin to ground and change
* the 'role_pin'. This tells the sketch it's running on the LED board.
@ -24,7 +24,7 @@
* Every time the buttons change on the remote, the entire state of
* buttons is send to the led board, which displays the state.
*/
#include <SPI.h>
#include "nRF24L01.h"
#include "RF24.h"
@ -38,15 +38,15 @@
RF24 radio(8,9);
// sets the role of this unit in hardware. Connect to GND to be the 'led' board receiver
// Leave open to be the 'remote' transmitter
// sets the role of this unit in hardware. Connect to GND to be the 'led' board receiver
// Leave open to be the 'remote' transmitter
const int role_pin = A4;
// Pins on the remote for buttons
const uint8_t button_pins[] = { 2,3,4,5,6,7 };
const uint8_t num_button_pins = sizeof(button_pins);
// Pins on the LED board for LED's
// Pins on the LED board for LED's
const uint8_t led_pins[] = { 2,3,4,5,6,7 };
const uint8_t num_led_pins = sizeof(led_pins);
@ -84,7 +84,7 @@ uint8_t button_states[num_button_pins];
uint8_t led_states[num_led_pins];
//
// Setup
// Setup
//
void setup(void)
@ -92,12 +92,12 @@ void setup(void)
//
// Role
//
// set up the role pin
pinMode(role_pin, INPUT);
digitalWrite(role_pin,HIGH);
delay(20); // Just to get a solid reading on the role pin
// read the address pin, establish our role
if ( digitalRead(role_pin) )
role = role_remote;
@ -107,7 +107,7 @@ void setup(void)
//
// Print preamble
//
Serial.begin(57600);
printf_begin();
printf("\n\rRF24/examples/led_remote/\n\r");
@ -116,16 +116,16 @@ void setup(void)
//
// Setup and configure rf radio
//
radio.begin();
//
// Open pipes to other nodes for communication
//
// This simple sketch opens a single pipes for these two nodes to communicate
// back and forth. One listens on it, the other talks to it.
if ( role == role_remote )
{
radio.openWritingPipe(pipe);
@ -138,14 +138,14 @@ void setup(void)
//
// Start listening
//
if ( role == role_led )
radio.startListening();
//
// Dump the configuration of the rf unit for debugging
//
radio.printDetails();
//
@ -178,7 +178,7 @@ void setup(void)
}
//
// Loop
// Loop
//
void loop(void)
@ -187,7 +187,7 @@ void loop(void)
// Remote role. If the state of any button has changed, send the whole state of
// all buttons.
//
if ( role == role_remote )
{
// Get the current state of buttons, and
@ -199,8 +199,8 @@ void loop(void)
uint8_t state = ! digitalRead(button_pins[i]);
if ( state != button_states[i] )
{
different = true;
button_states[i] = state;
different = true;
button_states[i] = state;
}
}
@ -210,19 +210,19 @@ void loop(void)
printf("Now sending...");
bool ok = radio.write( button_states, num_button_pins );
if (ok)
printf("ok\n\r");
printf("ok\n\r");
else
printf("failed\n\r");
printf("failed\n\r");
}
// Try again in a short while
delay(20);
}
//
// LED role. Receive the state of all buttons, and reflect that in the LEDs
//
if ( role == role_led )
{
// if there is data ready
@ -234,20 +234,20 @@ void loop(void)
{
// Fetch the payload, and see if this was the last one.
done = radio.read( button_states, num_button_pins );
// Spew it
printf("Got buttons\n\r");
// For each button, if the button now on, then toggle the LED
int i = num_led_pins;
while(i--)
{
if ( button_states[i] )
{
led_states[i] ^= HIGH;
digitalWrite(led_pins[i],led_states[i]);
}
}
// For each button, if the button now on, then toggle the LED
int i = num_led_pins;
while(i--)
{
if ( button_states[i] )
{
led_states[i] ^= HIGH;
digitalWrite(led_pins[i],led_states[i]);
}
}
}
}
}

56
examples/pingpair/pingpair.pde
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@ -1,6 +1,6 @@
/*
Copyright (C) 2011 James Coliz, Jr. <maniacbug@ymail.com>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
version 2 as published by the Free Software Foundation.
@ -14,7 +14,7 @@
* which responds by sending the value back. The ping node can then see how long the whole cycle
* took.
*/
#include <SPI.h>
#include "nRF24L01.h"
#include "RF24.h"
@ -29,7 +29,7 @@
RF24 radio(8,9);
// sets the role of this unit in hardware. Connect to GND to be the 'pong' receiver
// Leave open to be the 'ping' transmitter
// Leave open to be the 'ping' transmitter
const int role_pin = 7;
//
@ -63,12 +63,12 @@ void setup(void)
//
// Role
//
// set up the role pin
pinMode(role_pin, INPUT);
digitalWrite(role_pin,HIGH);
delay(20); // Just to get a solid reading on the role pin
// read the address pin, establish our role
if ( digitalRead(role_pin) )
role = role_ping_out;
@ -78,7 +78,7 @@ void setup(void)
//
// Print preamble
//
Serial.begin(57600);
printf_begin();
printf("\n\rRF24/examples/pingpair/\n\r");
@ -87,11 +87,11 @@ void setup(void)
//
// Setup and configure rf radio
//
radio.begin();
// optionally, increase the delay between retries & # of retries
radio.setRetries(15,15);
radio.setRetries(15,15);
// optionally, use a high channel to avoid WiFi chatter
radio.setChannel(110);
@ -102,12 +102,12 @@ void setup(void)
//
// Open pipes to other nodes for communication
//
// This simple sketch opens two pipes for these two nodes to communicate
// back and forth.
// Open 'our' pipe for writing
// Open the 'other' pipe for reading, in position #1 (we can have up to 5 pipes open for reading)
if ( role == role_ping_out )
{
radio.openWritingPipe(pipes[0]);
@ -122,13 +122,13 @@ void setup(void)
//
// Start listening
//
radio.startListening();
//
// Dump the configuration of the rf unit for debugging
//
radio.printDetails();
}
@ -137,27 +137,27 @@ void loop(void)
//
// Ping out role. Repeatedly send the current time
//
if (role == role_ping_out)
{
// First, stop listening so we can talk.
radio.stopListening();
// Take the time, and send it. This will block until complete
unsigned long time = millis();
printf("Now sending %lu...",time);
radio.write( &time, sizeof(unsigned long) );
radio.write( &time, sizeof(unsigned long) );
// Now, continue listening
radio.startListening();
// Wait here until we get a response, or timeout (250ms)
unsigned long started_waiting_at = millis();
bool timeout = false;
while ( ! radio.available() && ! timeout )
if (millis() - started_waiting_at > 250 )
timeout = true;
// Describe the results
if ( timeout )
{
@ -168,19 +168,19 @@ void loop(void)
// Grab the response, compare, and send to debugging spew
unsigned long got_time;
radio.read( &got_time, sizeof(unsigned long) );
// Spew it
printf("Got response %lu, round-trip delay: %lu\n\r",got_time,millis()-got_time);
}
// Try again 1s later
delay(1000);
}
//
// Pong back role. Receive each packet, dump it out, and send it back
//
if ( role == role_pong_back )
{
// if there is data ready
@ -193,18 +193,18 @@ void loop(void)
{
// Fetch the payload, and see if this was the last one.
done = radio.read( &got_time, sizeof(unsigned long) );
// Spew it
printf("Got payload %lu...",got_time);
}
// First, stop listening so we can talk
radio.stopListening();
// Send the final one back.
radio.write( &got_time, sizeof(unsigned long) );
radio.write( &got_time, sizeof(unsigned long) );
printf("Sent response.\n\r");
// Now, resume listening so we catch the next packets.
radio.startListening();
}

34
examples/pingpair_irq/pingpair_irq.pde
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@ -1,6 +1,6 @@
/*
Copyright (C) 2011 James Coliz, Jr. <maniacbug@ymail.com>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
version 2 as published by the Free Software Foundation.
@ -12,7 +12,7 @@
* This is an example of how to user interrupts to interact with the radio.
* It builds on the pingpair_pl example, and uses ack payloads.
*/
#include <SPI.h>
#include "nRF24L01.h"
#include "RF24.h"
@ -27,7 +27,7 @@
RF24 radio(8,9);
// sets the role of this unit in hardware. Connect to GND to be the 'pong' receiver
// Leave open to be the 'ping' transmitter
// Leave open to be the 'ping' transmitter
const short role_pin = 7;
//
@ -64,12 +64,12 @@ void setup(void)
//
// Role
//
// set up the role pin
pinMode(role_pin, INPUT);
digitalWrite(role_pin,HIGH);
delay(20); // Just to get a solid reading on the role pin
// read the address pin, establish our role
if ( digitalRead(role_pin) )
role = role_sender;
@ -79,7 +79,7 @@ void setup(void)
//
// Print preamble
//
Serial.begin(57600);
printf_begin();
printf("\n\rRF24/examples/pingpair_irq/\n\r");
@ -88,9 +88,9 @@ void setup(void)
//
// Setup and configure rf radio
//
radio.begin();
// We will be using the Ack Payload feature, so please enable it
radio.enableAckPayload();
@ -103,10 +103,10 @@ void setup(void)
//
// Open pipes to other nodes for communication
//
// This simple sketch opens a single pipe for these two nodes to communicate
// back and forth. One listens on it, the other talks to it.
if ( role == role_sender )
{
radio.openWritingPipe(pipe);
@ -119,16 +119,16 @@ void setup(void)
//
// Start listening
//
if ( role == role_receiver )
radio.startListening();
//
// Dump the configuration of the rf unit for debugging
//
radio.printDetails();
//
// Attach interrupt handler to interrupt #0 (using pin 2)
// on BOTH the sender and receiver
@ -144,15 +144,15 @@ void loop(void)
//
// Sender role. Repeatedly send the current time
//
if (role == role_sender)
{
// Take the time, and send it.
unsigned long time = millis();
printf("Now sending %lu\n\r",time);
radio.startWrite( &time, sizeof(unsigned long) );
// Try again soon
// Try again soon
delay(2000);
}
@ -206,7 +206,7 @@ void check_radio(void)
// If we're the receiver, we've received a time message
if ( role == role_receiver )
{
// Get this payload and dump it
// Get this payload and dump it
static unsigned long got_time;
radio.read( &got_time, sizeof(got_time) );
printf("Got payload %lu\n\r",got_time);

46
examples/pingpair_pl/pingpair_pl.pde
View File

@ -1,6 +1,6 @@
/*
Copyright (C) 2011 James Coliz, Jr. <maniacbug@ymail.com>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
version 2 as published by the Free Software Foundation.
@ -9,12 +9,12 @@
/**
* Example of using Ack Payloads
*
* This is an example of how to do two-way communication without changing
* transmit/receive modes. Here, a payload is set to the transmitter within
* This is an example of how to do two-way communication without changing
* transmit/receive modes. Here, a payload is set to the transmitter within
* the Ack packet of each transmission. Note that the payload is set BEFORE
* the sender's message arrives.
*/
#include <SPI.h>
#include "nRF24L01.h"
#include "RF24.h"
@ -29,7 +29,7 @@
RF24 radio(8,9);
// sets the role of this unit in hardware. Connect to GND to be the 'pong' receiver
// Leave open to be the 'ping' transmitter
// Leave open to be the 'ping' transmitter
const short role_pin = 7;
//
@ -63,12 +63,12 @@ void setup(void)
//
// Role
//
// set up the role pin
pinMode(role_pin, INPUT);
digitalWrite(role_pin,HIGH);
delay(20); // Just to get a solid reading on the role pin
// read the address pin, establish our role
if ( digitalRead(role_pin) )
role = role_sender;
@ -78,7 +78,7 @@ void setup(void)
//
// Print preamble
//
Serial.begin(57600);
printf_begin();
printf("\n\rRF24/examples/pingpair_pl/\n\r");
@ -87,19 +87,19 @@ void setup(void)
//
// Setup and configure rf radio
//
radio.begin();
// We will be using the Ack Payload feature, so please enable it
radio.enableAckPayload();
//
// Open pipes to other nodes for communication
//
// This simple sketch opens a single pipes for these two nodes to communicate
// back and forth. One listens on it, the other talks to it.
if ( role == role_sender )
{
radio.openWritingPipe(pipe);
@ -112,25 +112,25 @@ void setup(void)
//
// Start listening
//
if ( role == role_receiver )
radio.startListening();
//
// Dump the configuration of the rf unit for debugging
//
radio.printDetails();
}
void loop(void)
{
static uint32_t message_count = 0;
//
// Sender role. Repeatedly send the current time
//
if (role == role_sender)
{
// Take the time, and send it. This will block until complete
@ -142,17 +142,17 @@ void loop(void)
{
radio.read(&message_count,sizeof(message_count));
printf("Ack: [%lu] ",message_count);
}
}
printf("OK\n\r");
// Try again soon
// Try again soon
delay(2000);
}
//
// Receiver role. Receive each packet, dump it out, add ack payload for next time
//
if ( role == role_receiver )
{
// if there is data ready
@ -165,11 +165,11 @@ void loop(void)
{
// Fetch the payload, and see if this was the last one.
done = radio.read( &got_time, sizeof(unsigned long) );
// Spew it
printf("Got payload %lu\n",got_time);
}
// Add an ack packet for the next time around. This is a simple
// packet counter
radio.writeAckPayload( 1, &message_count, sizeof(message_count) );

89
examples/pingpair_sleepy/pingpair_sleepy.pde
View File

@ -1,6 +1,6 @@
/*
Copyright (C) 2011 James Coliz, Jr. <maniacbug@ymail.com>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
version 2 as published by the Free Software Foundation.
@ -15,11 +15,11 @@
* ping/pong cycle.
*
* As with the pingpair.pde example, write this sketch to two different nodes,
* connect the role_pin to ground on one. The ping node sends the current
* connect the role_pin to ground on one. The ping node sends the current
* time to the pong node, which responds by sending the value back. The ping
* node can then see how long the whole cycle took.
*/
#include <SPI.h>
#include <avr/sleep.h>
#include <avr/power.h>
@ -36,7 +36,7 @@
RF24 radio(8,9);
// sets the role of this unit in hardware. Connect to GND to be the 'pong' receiver
// Leave open to be the 'ping' transmitter
// Leave open to be the 'ping' transmitter
const int role_pin = 7;
//
@ -86,12 +86,12 @@ void setup(void)
//
// Role
//
// set up the role pin
pinMode(role_pin, INPUT);
digitalWrite(role_pin,HIGH);
delay(20); // Just to get a solid reading on the role pin
// read the address pin, establish our role
if ( digitalRead(role_pin) )
role = role_ping_out;
@ -101,7 +101,7 @@ void setup(void)
//
// Print preamble
//
Serial.begin(57600);
printf_begin();
printf("\n\rRF24/examples/pingpair_sleepy/\n\r");
@ -118,18 +118,18 @@ void setup(void)
//
// Setup and configure rf radio
//
radio.begin();
//
// Open pipes to other nodes for communication
//
// This simple sketch opens two pipes for these two nodes to communicate
// back and forth.
// Open 'our' pipe for writing
// Open the 'other' pipe for reading, in position #1 (we can have up to 5 pipes open for reading)
if ( role == role_ping_out )
{
radio.openWritingPipe(pipes[0]);
@ -144,13 +144,13 @@ void setup(void)
//
// Start listening
//
radio.startListening();
//
// Dump the configuration of the rf unit for debugging
//
radio.printDetails();
}
@ -159,27 +159,27 @@ void loop(void)
//
// Ping out role. Repeatedly send the current time
//
if (role == role_ping_out)
{
// First, stop listening so we can talk.
radio.stopListening();
// Take the time, and send it. This will block until complete
unsigned long time = millis();
printf("Now sending %lu...",time);
radio.write( &time, sizeof(unsigned long) );
radio.write( &time, sizeof(unsigned long) );
// Now, continue listening
radio.startListening();
// Wait here until we get a response, or timeout (250ms)
unsigned long started_waiting_at = millis();
bool timeout = false;
while ( ! radio.available() && ! timeout )
if (millis() - started_waiting_at > 250 )
timeout = true;
// Describe the results
if ( timeout )
{
@ -190,11 +190,11 @@ void loop(void)
// Grab the response, compare, and send to debugging spew
unsigned long got_time;
radio.read( &got_time, sizeof(unsigned long) );
// Spew it
printf("Got response %lu, round-trip delay: %lu\n\r",got_time,millis()-got_time);
}
//
// Shut down the system
//
@ -210,16 +210,16 @@ void loop(void)
// continue execution here.
while( sleep_cycles_remaining )
do_sleep();
sleep_cycles_remaining = sleep_cycles_per_transmission;
}
//
// Pong back role. Receive each packet, dump it out, and send it back
//
// This is untouched from the pingpair example.
//
if ( role == role_pong_back )
{
// if there is data ready
@ -232,19 +232,19 @@ void loop(void)
{
// Fetch the payload, and see if this was the last one.
done = radio.read( &got_time, sizeof(unsigned long) );
// Spew it. Include our time, because the ping_out millis counter is unreliable
// due to it sleeping
// due to it sleeping
printf("Got payload %lu @ %lu...",got_time,millis());
}
// First, stop listening so we can talk
radio.stopListening();
// Send the final one back.
radio.write( &got_time, sizeof(unsigned long) );
radio.write( &got_time, sizeof(unsigned long) );
printf("Sent response.\n\r");
// Now, resume listening so we catch the next packets.
radio.startListening();
}
@ -252,36 +252,37 @@ void loop(void)
}
//
// Sleep helpers
// Sleep helpers
//
// 0=16ms, 1=32ms,2=64ms,3=125ms,4=250ms,5=500ms
// 6=1 sec,7=2 sec, 8=4 sec, 9= 8sec
void setup_watchdog(uint8_t prescalar)
void setup_watchdog(uint8_t prescalar)
{
prescalar = min(9,prescalar);
uint8_t wdtcsr = prescalar & 7;
if ( prescalar & 8 )
wdtcsr |= _BV(WDP3);
prescalar = min(9,prescalar);
uint8_t wdtcsr = prescalar & 7;
if ( prescalar & 8 )
wdtcsr |= _BV(WDP3);
MCUSR &= ~_BV(WDRF);
WDTCSR = _BV(WDCE) | _BV(WDE);
WDTCSR = _BV(WDCE) | wdtcsr | _BV(WDIE);
MCUSR &= ~_BV(WDRF);
WDTCSR = _BV(WDCE) | _BV(WDE);
WDTCSR = _BV(WDCE) | wdtcsr | _BV(WDIE);
}
ISR(WDT_vect) {
ISR(WDT_vect)
{
--sleep_cycles_remaining;
}
void do_sleep(void)
{
set_sleep_mode(SLEEP_MODE_PWR_DOWN); // sleep mode is set here
sleep_enable();
set_sleep_mode(SLEEP_MODE_PWR_DOWN); // sleep mode is set here
sleep_enable();
sleep_mode(); // System sleeps here
sleep_mode(); // System sleeps here
sleep_disable(); // System continues execution here when watchdog timed out
sleep_disable(); // System continues execution here when watchdog timed out
}
// vim:ai:cin:sts=2 sw=2 ft=cpp

16
examples/scanner/scanner.pde
View File

@ -1,7 +1,7 @@
/*
Copyright (C) 2011 James Coliz, Jr. <maniacbug@ymail.com>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
version 2 as published by the Free Software Foundation.
@ -47,15 +47,15 @@ void setup(void)
//
// Print preamble
//
Serial.begin(57600);
printf_begin();
printf("\n\rRF24/examples/scanner/\n\r");
//
// Setup and configure rf radio
//
radio.begin();
radio.setAutoAck(false);
@ -63,7 +63,7 @@ void setup(void)
radio.startListening();
radio.stopListening();
// Print out header, high then low digit
// Print out header, high then low digit
int i = 0;
while ( i < num_channels )
{
@ -88,7 +88,7 @@ const short num_reps = 100;
void loop(void)
{
// Clear measurement values
// Clear measurement values
memset(values,0,num_channels);
// Scan all channels num_reps times
@ -108,11 +108,11 @@ void loop(void)
// Did we get a carrier?
if ( radio.testCarrier() )
++values[i];
++values[i];
}
}
// Print out channel measurements, clamped to a single hex digit
// Print out channel measurements, clamped to a single hex digit
int i = 0;
while ( i < num_channels )
{

66
examples/starping/starping.pde
View File

@ -1,18 +1,18 @@
/*
Copyright (C) 2011 James Coliz, Jr. <maniacbug@ymail.com>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
version 2 as published by the Free Software Foundation.
*/
/**
* Example RF Radio Ping Star Group
* Example RF Radio Ping Star Group
*
* This sketch is a more complex example of using the RF24 library for Arduino.
* Deploy this on up to six nodes. Set one as the 'pong receiver' by tying the
* This sketch is a more complex example of using the RF24 library for Arduino.
* Deploy this on up to six nodes. Set one as the 'pong receiver' by tying the
* role_pin low, and the others will be 'ping transmit' units. The ping units
* unit will send out the value of millis() once a second. The pong unit will
* unit will send out the value of millis() once a second. The pong unit will
* respond back with a copy of the value. Each ping unit can get that response
* back, and determine how long the whole cycle took.
*
@ -20,7 +20,7 @@
* The pong receiver is identified by having its role_pin tied to ground.
* The ping senders are further differentiated by a byte in eeprom.
*/
#include <SPI.h>
#include <EEPROM.h>
#include "nRF24L01.h"
@ -88,12 +88,12 @@ void setup(void)
//
// Role
//
// set up the role pin
pinMode(role_pin, INPUT);
digitalWrite(role_pin,HIGH);
delay(20); // Just to get a solid reading on the role pin
// read the address pin, establish our role
if ( digitalRead(role_pin) )
role = role_ping_out;
@ -115,7 +115,7 @@ void setup(void)
// address.
if ( reading >= 2 && reading <= 6 )
node_address = reading;
// Otherwise, it is invalid, so set our address AND ROLE to 'invalid'
else
{
@ -127,7 +127,7 @@ void setup(void)
//
// Print preamble
//
Serial.begin(57600);
printf_begin();
printf("\n\rRF24/examples/starping/\n\r");
@ -137,7 +137,7 @@ void setup(void)
//
// Setup and configure rf radio
//
radio.begin();
//
@ -154,27 +154,27 @@ void setup(void)
radio.openReadingPipe(4,talking_pipes[3]);
radio.openReadingPipe(5,talking_pipes[4]);
}
// Each ping node has a talking pipe that it will ping into, and a listening
// pipe that it will listen for the pong.
// Each ping node has a talking pipe that it will ping into, and a listening
// pipe that it will listen for the pong.
if ( role == role_ping_out )
{
// Write on our talking pipe
radio.openWritingPipe(talking_pipes[node_address-2]);
// Listen on our listening pipe
// Listen on our listening pipe
radio.openReadingPipe(1,listening_pipes[node_address-2]);
}
//
// Start listening
//
radio.startListening();
//
// Dump the configuration of the rf unit for debugging
//
radio.printDetails();
//
@ -192,27 +192,27 @@ void loop(void)
//
// Ping out role. Repeatedly send the current time
//
if (role == role_ping_out)
{
// First, stop listening so we can talk.
radio.stopListening();
// Take the time, and send it. This will block until complete
unsigned long time = millis();
printf("Now sending %lu...",time);
radio.write( &time, sizeof(unsigned long) );
radio.write( &time, sizeof(unsigned long) );
// Now, continue listening
radio.startListening();
// Wait here until we get a response, or timeout (250ms)
unsigned long started_waiting_at = millis();
bool timeout = false;
while ( ! radio.available() && ! timeout )
if (millis() - started_waiting_at > 250 )
timeout = true;
// Describe the results
if ( timeout )
{
@ -223,19 +223,19 @@ void loop(void)
// Grab the response, compare, and send to debugging spew
unsigned long got_time;
radio.read( &got_time, sizeof(unsigned long) );
// Spew it
printf("Got response %lu, round-trip delay: %lu\n\r",got_time,millis()-got_time);
}
// Try again 1s later
delay(1000);
}
//
// Pong back role. Receive each packet, dump it out, and send it back
//
if ( role == role_pong_back )
{
// if there is data ready
@ -249,11 +249,11 @@ void loop(void)
{
// Fetch the payload, and see if this was the last one.
done = radio.read( &got_time, sizeof(unsigned long) );
// Spew it
printf("Got payload %lu from node %i...",got_time,pipe_num+1);
}
// First, stop listening so we can talk
radio.stopListening();
@ -262,11 +262,11 @@ void loop(void)
// Retain the low 2 bytes to identify the pipe for the spew
uint16_t pipe_id = listening_pipes[pipe_num-1] & 0xffff;
// Send the final one back.
radio.write( &got_time, sizeof(unsigned long) );
radio.write( &got_time, sizeof(unsigned long) );
printf("Sent response to %04x.\n\r",pipe_id);
// Now, resume listening so we catch the next packets.
radio.startListening();
}