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February 8, 2015 13:59
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WiFi-Enabled Arduino Fio using the WiFly RN-XV (RN171XV)
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/* | |
WiFlyTimeWithConsole.pde | |
http://www.semifluid.com | |
Based upon httpclient.ino from: | |
https://github.com/harlequin-tech/WiFlyHQ/blob/master/examples/httpclient/httpclient.ino | |
and Console.pde from: | |
================ | |
Universal 8bit Graphics Library, http://code.google.com/p/u8glib/ | |
Copyright (c) 2011, olikraus@gmail.com | |
All rights reserved. | |
Redistribution and use in source and binary forms, with or without modification, | |
are permitted provided that the following conditions are met: | |
* Redistributions of source code must retain the above copyright notice, this list | |
of conditions and the following disclaimer. | |
* Redistributions in binary form must reproduce the above copyright notice, this | |
list of conditions and the following disclaimer in the documentation and/or other | |
materials provided with the distribution. | |
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND | |
CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, | |
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR | |
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | |
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF | |
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
================ | |
*/ | |
#include <WiFlyHQ.h> | |
#include <SoftwareSerial.h> | |
SoftwareSerial debugSerial(2,3); | |
WiFly WiFly; | |
/* Change these to match your WiFi network */ | |
const char mySSID[] = "XXXX"; | |
const char myPassword[] = "XXXX"; | |
#include <U8glib.h> | |
byte ledBacklight = 100; | |
const byte lcdLED = 6; // LED Backlight | |
const byte lcdA0 = 7; // Data and command selections. L: command H : data | |
const byte lcdRESET = 8; // Low reset | |
const byte lcdCS = 9; // SPI Chip Select (internally pulled up), active low | |
const byte lcdMOSI = 11; // SPI Data transmission | |
const byte lcdSCK = 13; // SPI Serial Clock | |
const byte bufferSize = 32; | |
// SW SPI: | |
//U8GLIB_MINI12864_2X u8g(lcdSCK, lcdMOSI, lcdCS, lcdA0, lcdRESET); | |
// HW SPI: | |
U8GLIB_MINI12864_2X u8g(lcdCS, lcdA0, lcdRESET); | |
const byte LINE_MAX = 30; // setup input buffer | |
byte line_buf[LINE_MAX]; | |
byte line_pos = 0; | |
const byte ROW_MAX = 12; // setup a text screen to support scrolling | |
byte screen[ROW_MAX][LINE_MAX]; | |
byte rows, cols; | |
const byte LINE_PIXEL_HEIGHT = 7; // line height, which matches the selected font (5x7) | |
// Print character arrays to console | |
void u8g_print(char* theString) { | |
char ch; | |
byte i = 0; | |
while ((ch = theString[i++]) != '') { | |
read_line(ch); | |
} | |
} | |
// Print character arrays with a new line at the end | |
void u8g_println(char* theString) { | |
u8g_print(theString); | |
read_line('r'); | |
} | |
// Print character arrays saved in program memory to console | |
void u8g_print_P(const prog_char *theString) { | |
char ch; | |
while ((ch = pgm_read_byte(theString++)) != '') { | |
read_line(ch); | |
} | |
} | |
// Print character arrays saved in program memory with a new line at the end | |
void u8g_println_P(const prog_char *theString) { | |
u8g_print_P(theString); | |
read_line('r'); | |
} | |
// Clear entire screen, called during setup | |
void clear_screen(void) { | |
byte i, j; | |
for( i = 0; i < ROW_MAX; i++ ) | |
for( j = 0; j < LINE_MAX; j++ ) | |
screen[i][j] = 0; | |
} | |
// Append a line to the screen, scroll up | |
void add_line_to_screen(void) { | |
byte i, j; | |
for( j = 0; j < LINE_MAX; j++ ) | |
for( i = 0; i < rows-1; i++ ) | |
screen[i][j] = screen[i+1][j]; | |
for( j = 0; j < LINE_MAX; j++ ) | |
screen[rows-1][j] = line_buf[j]; | |
} | |
// U8GLIB draw procedure: output the screen | |
void draw(void) { | |
byte i, y; | |
// graphic commands to redraw the complete screen are placed here | |
y = 0; // reference is the top left -1 position of the string | |
y--; // correct the -1 position of the drawStr | |
for( i = 0; i < rows; i++ ) | |
{ | |
u8g.drawStr( 0, y, (char *)(screen[i])); | |
y += u8g.getFontLineSpacing(); | |
} | |
} | |
void exec_line(void) { | |
// Add the line to the screen | |
add_line_to_screen(); | |
// U8GLIB picture loop | |
u8g.firstPage(); | |
do { | |
draw(); | |
} while( u8g.nextPage() ); | |
} | |
// Clear current input buffer | |
void reset_line(void) { | |
line_pos = 0; | |
line_buf[line_pos] = ''; | |
} | |
// Add a single character to the input buffer | |
void char_to_line(char c) { | |
line_buf[line_pos] = c; | |
line_pos++; | |
line_buf[line_pos] = ''; | |
} | |
// Handle new console character | |
void read_line(char c) { | |
if ( line_pos >= cols-1 ) { | |
exec_line(); | |
reset_line(); | |
char_to_line(c); | |
} | |
else if ( c == 'n' ) { | |
// ignore 'n' | |
} | |
else if ( c == 'r' ) { | |
exec_line(); | |
reset_line(); | |
} | |
else { | |
char_to_line(c); | |
} | |
} | |
// From http://playground.arduino.cc/Code/AvailableMemory | |
int freeRam () { | |
extern int __heap_start, *__brkval; | |
int v; | |
return (int) &v - (__brkval == 0 ? (int) &__heap_start : (int) __brkval); | |
} | |
void setup() | |
{ | |
char buf[bufferSize]; | |
// Turn on LED backlight | |
analogWrite(lcdLED, ledBacklight); | |
// Setup U8glib | |
u8g.begin(); | |
u8g.setFont(u8g_font_5x7); // Set font for the console window | |
u8g.setFontPosTop(); // Set upper left position for the string draw procedure | |
// Calculate the number of rows for the display | |
rows = u8g.getHeight() / u8g.getFontLineSpacing(); | |
if ( rows > ROW_MAX ) | |
rows = ROW_MAX; | |
// Estimate the number of columns for the display | |
cols = u8g.getWidth() / u8g.getStrWidth("m"); | |
if ( cols > LINE_MAX-1 ) | |
cols = LINE_MAX-1; | |
clear_screen(); // Clear screen | |
delay(1000); // Delay | |
reset_line(); // Clear input buffer | |
// Print some information | |
u8g_println_P(PSTR("WiFlyTimeWithConsole.pde")); | |
u8g_println_P(PSTR("semifluid.com")); | |
u8g_println_P(PSTR("")); | |
u8g_println_P(PSTR("Starting...")); | |
u8g_print_P(PSTR("Free Memory: ")); | |
String(freeRam(),DEC).toCharArray(buf, sizeof(buf));u8g_println(buf); | |
Serial.begin(9600); | |
while (!WiFly.begin(&Serial, &debugSerial)) { | |
// Failed to start WiFly | |
u8g_println_P(PSTR("Failed to start WiFly")); | |
} | |
/* Join wifi network if not already associated */ | |
if (!WiFly.isAssociated()) { | |
/* Setup the WiFly to connect to a wifi network */ | |
// Joining network | |
WiFly.setSSID(mySSID); | |
WiFly.setPassphrase(myPassword); | |
WiFly.enableDHCP(); | |
if (WiFly.join()) { | |
// Joined wifi network | |
u8g_println_P(PSTR("Joined wifi network")); | |
} else { | |
// Failed to join wifi network | |
u8g_println_P(PSTR("Failed to join wifi network")); | |
} | |
} else { | |
// Already joined network | |
u8g_println_P(PSTR("Already joined network")); | |
} | |
WiFly.setDeviceID("WiFly"); | |
u8g_println_P(PSTR("SSID: ")); | |
WiFly.getSSID(buf, sizeof(buf));u8g_println(buf); | |
u8g_print_P(PSTR("DeviceID: ")); | |
WiFly.getDeviceID(buf, sizeof(buf));u8g_println(buf); | |
u8g_print_P(PSTR("IP: ")); | |
WiFly.getIP(buf, sizeof(buf));u8g_println(buf); | |
u8g_print_P(PSTR("Netmask: ")); | |
WiFly.getNetmask(buf, sizeof(buf));u8g_println(buf); | |
u8g_print_P(PSTR("Gateway: ")); | |
WiFly.getGateway(buf, sizeof(buf));u8g_println(buf); | |
u8g_print_P(PSTR("MAC: ")); | |
WiFly.getMAC(buf, sizeof(buf));u8g_println(buf); | |
WiFly.setTimeAddress("129.6.15.30"); // time-c.nist.gov | |
WiFly.setTimePort(123); | |
WiFly.setTimezone(22); // CEST UTC + 2 hours | |
WiFly.setTimeEnable(5); | |
WiFly.time(); | |
if (WiFly.isConnected()) { | |
// Old connection active. Closing | |
u8g_println_P(PSTR("Old connection active. Closing...")); | |
WiFly.close(); | |
} | |
} | |
void loop() | |
{ | |
char buf[bufferSize]; | |
// Get the time off the WiFly and print to GLCD | |
WiFly.getTime(buf, sizeof(buf));u8g_print(buf); | |
u8g_println_P(PSTR(" --- RSSI: ")); | |
// Get the WiFly's signal strength (RSSI) and print to GLCD | |
String(WiFly.getRSSI(), DEC).toCharArray(buf, sizeof(buf));u8g_println(buf); | |
delay(2000); | |
} |
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