Arduino Musical WiFi Analyzer

#include <SPI.h>
#include <WiFi.h>
#include <ame.h>
#include <Wire.h>

#include "Adafruit_LEDBackpack.h"
#include "Adafruit_GFX.h"

#define RED_LED 8
#define GREEN_LED 9
#define BLUE_LED 10

#define BUZZER 11

#define MATRIX 0x70

#define BUTTON1 6
#define BUTTON2 5
#define BUTTON3 4
#define BUTTON4 3
#define BUTTON5 2

AME_Led RedLed(RED_LED);
AME_Led GreenLed(GREEN_LED);
AME_Led BlueLed(BLUE_LED);

AME_Button buttons[5] = {
	AME_Button(BUTTON1),
	AME_Button(BUTTON2),
	AME_Button(BUTTON3),
	AME_Button(BUTTON4),
	AME_Button(BUTTON5)
};

int mode = 1;
int numSsid;
int pitch = 5;
int best;

Adafruit_8x8matrix matrix = Adafruit_8x8matrix();

void setup(){
	Serial.begin(9600);

	String firmware = WiFi.firmwareVersion();
  
	if(firmware != "1.1.0"){
		RedLed.off();
		GreenLed.off();
		BlueLed.on();
		
		while(1);
	}
	
	matrix.begin(MATRIX);
	
	RedLed.off();
	GreenLed.on();
  BlueLed.off();
}

void loop(){
	switch(mode){
		case 1:
			numSsid = WiFi.scanNetworks();
			
			if(numSsid == -1){
			  RedLed.on();
			  GreenLed.off();
			  BlueLed.off();
			} else {
				RedLed.off();
				GreenLed.on();
			    BlueLed.off();
				
				Serial.print(numSsid + " ");
			
				for(int i = 0; i < numSsid; i++){
					Serial.print(i + " ");
					Serial.print(WiFi.SSID(i) + " ");
					Serial.println(WiFi.RSSI(i));
				}
			}
		break;
		case 2:
			numSsid = WiFi.scanNetworks();
			
			if(numSsid == -1){
			  RedLed.on();
			  GreenLed.off();
			  BlueLed.off();
			} else {
				RedLed.off();
				GreenLed.on();
			    BlueLed.off();
				
				matrix.clear();
				
				for(int j = 0; j < 2; j ++){
					for(int i = 0; i < numSsid && i < 8; i++){
						tone(BUZZER, WiFi.RSSI(i) * pitch, 1);
						
						matrix.drawRect(i, 8 - (WiFi.RSSI(i) / 32)), 1, WiFi.RSSI(i) / 32, LED_ON);
					}
				}
				
				matrix.writeDisplay();
			}
		break;
	}
	
	if(buttons[0].wasPressed()){
		mode = 1;
	} else if(buttons[1].wasPressed()){
		mode = 2;
	} else if(buttons[2].wasPressed()){
		if(pitch > 0){
			pitch--;
		}
	} else if(buttons[3].wasPressed()){
		if(pitch < 10){
			pitch++;
		}
	} else if(buttons[4].wasPressed()){
		numSsid = WiFi.scanNetworks();
		best = 0;
		
		if(numSsid == -1){
			RedLed.on();
			GreenLed.off();
			BlueLed.off();
		} else {
			for(int i = 0; i < numSsid; i++){
				if(WiFi.RSSI(best) < WiFi.RSSI(i)){
					best = 1;
				}
			}
		}
		
		Serial.println("<" + best + ">");
	}
}