mirror of https://github.com/arendst/Tasmota.git
144 lines
2.7 KiB
C++
144 lines
2.7 KiB
C++
/*
|
|
Copyright (C) 2011 J. Coliz <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.
|
|
|
|
|
|
03/17/2013 : Charles-Henri Hallard (http://hallard.me)
|
|
Modified to use with Arduipi board http://hallard.me/arduipi
|
|
Changed to use modified bcm2835 and RF24 library
|
|
|
|
*/
|
|
|
|
/**
|
|
* Channel scanner
|
|
*
|
|
* Example to detect interference on the various channels available.
|
|
* This is a good diagnostic tool to check whether you're picking a
|
|
* good channel for your application.
|
|
*
|
|
* Inspired by cpixip.
|
|
* See http://arduino.cc/forum/index.php/topic,54795.0.html
|
|
*/
|
|
|
|
#include <cstdlib>
|
|
#include <iostream>
|
|
#include <RF24/RF24.h>
|
|
|
|
using namespace std;
|
|
|
|
//
|
|
// Hardware configuration
|
|
//
|
|
|
|
// CE Pin, CSN Pin, SPI Speed
|
|
|
|
// Setup for GPIO 22 CE and GPIO 25 CSN with SPI Speed @ 1Mhz
|
|
//RF24 radio(RPI_V2_GPIO_P1_22, RPI_V2_GPIO_P1_18, BCM2835_SPI_SPEED_1MHZ);
|
|
|
|
// Setup for GPIO 22 CE and CE0 CSN with SPI Speed @ 4Mhz
|
|
//RF24 radio(RPI_V2_GPIO_P1_15, BCM2835_SPI_CS0, BCM2835_SPI_SPEED_4MHZ);
|
|
|
|
// Setup for GPIO 22 CE and CE1 CSN with SPI Speed @ 8Mhz
|
|
//RF24 radio(RPI_V2_GPIO_P1_15, RPI_V2_GPIO_P1_24, BCM2835_SPI_SPEED_8MHZ);
|
|
|
|
// Generic setup
|
|
RF24 radio(22, 0);
|
|
|
|
//
|
|
// Channel info
|
|
//
|
|
const uint8_t num_channels = 126;
|
|
uint8_t values[num_channels];
|
|
|
|
|
|
const int num_reps = 100;
|
|
int reset_array=0;
|
|
|
|
|
|
int main(int argc, char** argv)
|
|
{
|
|
//
|
|
// Print preamble
|
|
//
|
|
|
|
//Serial.begin(115200);
|
|
//printf_begin();
|
|
printf("RF24/examples/scanner/\n");
|
|
|
|
//
|
|
// Setup and configure rf radio
|
|
//
|
|
radio.begin();
|
|
|
|
radio.setAutoAck(false);
|
|
|
|
// Get into standby mode
|
|
radio.startListening();
|
|
radio.stopListening();
|
|
|
|
radio.printDetails();
|
|
|
|
// Print out header, high then low digit
|
|
int i = 0;
|
|
|
|
while ( i < num_channels )
|
|
{
|
|
printf("%x",i>>4);
|
|
++i;
|
|
}
|
|
printf("\n");
|
|
|
|
i = 0;
|
|
while ( i < num_channels )
|
|
{
|
|
printf("%x",i&0xf);
|
|
++i;
|
|
}
|
|
printf("\n");
|
|
|
|
// forever loop
|
|
while(1)
|
|
{
|
|
// Clear measurement values
|
|
memset(values,0,sizeof(values));
|
|
|
|
// Scan all channels num_reps times
|
|
int rep_counter = num_reps;
|
|
while(rep_counter--)
|
|
{
|
|
|
|
int i = num_channels;
|
|
while (i--)
|
|
{
|
|
|
|
// Select this channel
|
|
radio.setChannel(i);
|
|
|
|
// Listen for a little
|
|
radio.startListening();
|
|
delayMicroseconds(128);
|
|
radio.stopListening();
|
|
|
|
// Did we get a carrier?
|
|
if ( radio.testCarrier() ) ++values[i];
|
|
}
|
|
}
|
|
|
|
// Print out channel measurements, clamped to a single hex digit
|
|
i = 0;
|
|
while ( i < num_channels )
|
|
{
|
|
printf("%x",min(0xf,(values[i]&0xf)));
|
|
++i;
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
// vim:ai:cin:sts=2 sw=2 ft=cpp
|