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Cleaned up documentation.

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This commit is contained in:
maniacbug
2011-04-03 20:28:54 -07:00
parent 117678c46f
commit 21057e4608
5 changed files with 104 additions and 67 deletions
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69
examples/starping/starping.pde
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@@ -10,14 +10,14 @@
* 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' and the others
* as 'ping transmit' units. The ping units unit will send out the value of millis()
* once a second. The pong unit will respond back with a copy of the value.
* The ping unit can get that response back, and
* determine how long the whole cycle took.
* 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
* respond back with a copy of the value. Each ping unit can get that response
* back, and determine how long the whole cycle took.
*
* This example requires a bit more complexity to determine which unit is
* which. The pong receiver is identified by having its role_pin tied to ground.
* This example requires a bit more complexity to determine which unit is which.
* The pong receiver is identified by having its role_pin tied to ground.
* The ping senders are further differentiated by a byte in eeprom.
*/
@@ -27,8 +27,6 @@
#include "RF24.h"
#include "printf.h"
extern EEPROMClass EEPROM;
//
// Hardware configuration
//
@@ -45,9 +43,14 @@ const int role_pin = 7;
// Topology
//
// Radio pipe addresses for the 6 nodes to communicate
const uint64_t talking_pipes[6] = { 0xF0F0F0F0E1LL, 0xF0F0F0F0D2LL, 0xF0F0F0F0C3LL, 0xF0F0F0F0B4LL, 0xF0F0F0F0A5LL, 0xF0F0F0F096LL };
const uint64_t listening_pipes[6] = { 0x3A3A3A3AE1LL, 0x3A3A3A3AD2LL, 0x3A3A3A3AC3LL, 0x3A3A3A3AB4LL, 0x3A3A3A3AA5LL, 0x3A3A3A3A96LL };
// Radio pipe addresses for the nodes to communicate. Only ping nodes need
// dedicated pipes in this topology. Each ping node has a talking pipe
// that it will ping into, and a listening pipe that it will listen for
// the pong. The pong node listens on all the ping node talking pipes
// and sends the pong back on the sending node's specific listening pipe.
const uint64_t talking_pipes[5] = { 0xF0F0F0F0D2LL, 0xF0F0F0F0C3LL, 0xF0F0F0F0B4LL, 0xF0F0F0F0A5LL, 0xF0F0F0F096LL };
const uint64_t listening_pipes[5] = { 0x3A3A3A3AD2LL, 0x3A3A3A3AC3LL, 0x3A3A3A3AB4LL, 0x3A3A3A3AA5LL, 0x3A3A3A3A96LL };
//
// Role management
@@ -76,7 +79,8 @@ role_e role;
const uint8_t address_at_eeprom_location = 0;
// What is our address (SRAM cache of the address from EEPROM)
// Note that zero is an INVALID address
// Note that zero is an INVALID address. The pong back unit takes address
// 1, and the rest are 2-6
uint8_t node_address;
void setup(void)
@@ -139,26 +143,26 @@ void setup(void)
//
// Open pipes to other nodes for communication
//
// Open 'our' pipe for writing
// ping nodes open the parent's pipe for reading
// pong node opens all children's pipes for reading
// The pong node listens on all the ping node talking pipes
// and sends the pong back on the sending node's specific listening pipe.
if ( role == role_pong_back )
{
// Listen to all ping nodes' talking pipes
radio.openReadingPipe(1,talking_pipes[1]);
radio.openReadingPipe(2,talking_pipes[2]);
radio.openReadingPipe(3,talking_pipes[3]);
radio.openReadingPipe(4,talking_pipes[4]);
radio.openReadingPipe(5,talking_pipes[5]);
radio.openReadingPipe(1,talking_pipes[0]);
radio.openReadingPipe(2,talking_pipes[1]);
radio.openReadingPipe(3,talking_pipes[2]);
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.
if ( role == role_ping_out )
{
// Write on our talking pipe
radio.openWritingPipe(talking_pipes[node_address-1]);
radio.openWritingPipe(talking_pipes[node_address-2]);
// Listen on our listening pipe
radio.openReadingPipe(1,listening_pipes[node_address-1]);
radio.openReadingPipe(1,listening_pipes[node_address-2]);
}
//
@@ -172,6 +176,15 @@ void setup(void)
//
radio.printDetails();
//
// Prompt the user to assign a node address if we don't have one
//
if ( role == role_invalid )
{
printf("\n\r*** NO NODE ADDRESS ASSIGNED *** Send 1 through 6 to assign an address\n\r");
}
}
void loop(void)
@@ -238,7 +251,7 @@ void loop(void)
done = radio.read( &got_time, sizeof(unsigned long) );
// Spew it
printf("Got payload %lu from %i...",got_time,pipe_num);
printf("Got payload %lu from node %i...",got_time,pipe_num+1);
}
// First, stop listening so we can talk
@@ -277,4 +290,4 @@ void loop(void)
}
}
}
// vim:ai sts=2 sw=2 ft=cpp
// vim:ai:ci sts=2 sw=2 ft=cpp