So, what I was wondering, is there some kind of a limit in the WiServer.print()? Would I be better off with multiple WiServer.print() statements instead of one large one? I've seen other posts during my research that suggest lots of WiServer.print()s can be problematic, but the Wiki suggests that a page of essentially any size should be doable.
I'm also trying to better understand exactly how the WiServer.server_task() works. If the buffer is 200bytes and the page is 600bytes, when the server_task() gets called in loop(), does it do only one call to sendPage(), processing the first 200bytes and then the next time it gets called in loop() is when it processes the next 200? Or does server_task() make multiple calls to sendPage() within the first time it's called in loop()?
This is code that works and has the shorter WiServer.print() string.
- Code: Select all
#include <WiServer.h>
#include <string.h>
#include <Servo.h>
#define WIRELESS_MODE_INFRA 1
#define WIRELESS_MODE_ADHOC 2
//http://www.asynclabs.com/forums/viewtopic.php?f=18&t=104&p=505&hilit=Toggle+LED#p505
// Wireless configuration parameters ----------------------------------------
unsigned char local_ip[] = {169,254,0,11}; // IP address of WiShield
unsigned char gateway_ip[] = {169,254,0,1}; // router or gateway IP address
unsigned char subnet_mask[] = {255,255,0,0}; // subnet mask for the local network
const prog_char ssid[] PROGMEM = {"ASYNCLABS"}; // max 32 bytes
unsigned char security_type = 0; // 0 - open; 1 - WEP; 2 - WPA; 3 - WPA2
// WPA/WPA2 passphrase
const prog_char security_passphrase[] PROGMEM = {"12345678"}; // max 64 characters
// WEP 128-bit keys
// sample HEX keys
prog_uchar wep_keys[] PROGMEM = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, // Key 0
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Key 1
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Key 2
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // Key 3
};
// setup the wireless mode
// infrastructure - connect to AP
// adhoc - connect to another WiFi device
unsigned char wireless_mode = WIRELESS_MODE_ADHOC;
unsigned char ssid_len;
unsigned char security_passphrase_len;
// Servo Control Parameters ------------------------------------------------
Servo servoX; // create servo object to control a servo
Servo servoY; // a maximum of eight servo objects can be created
// Limits for servo positions
int minRange = 20;
int maxRange = 160;
int median = 90;
int posX = 90; // Start tail in center position
int incomingByte = 90; // value inbetween wags and curls
int wagStep = 1; // Increment stepper value
boolean positive = true;// Flag for managing wag direction
int wagPattern = 90; // Stores byte value for wagging tail
int curlPattern = 90; // Stores byte value for curling tail
// Methods ------------------------------------------------------------------
void setup() {
// Initialize WiServer and have it use the sendPage function to serve pages
Serial.begin(115200);
Serial.println("setup() ... ");
servoX.attach(2); // attaches the servo on pin 2 to the servo object
servoY.attach(4); // attaches the servo on pin 4 to the servo object
servoX.write(median);
servoY.write(median);
WiServer.init(sendPage);
}
boolean sendPage(char* URL) {
if (URL[1] == '?') {
// Set wagPattern or curlPattern based on URL
incomingByte = URL[2];
if(incomingByte < 91) {
wagPattern = incomingByte;
}else if(incomingByte > 96) {
curlPattern = incomingByte;
}
}
Serial.print("serving ... ");
// Serial.println(counter, DEC);
WiServer.print("<html><head><meta name='viewport' content='width=300'><style type='text/css'>html{width:300px;font-family:sans-serif;text-align:center}body{margin:0px}a{display:block;margin:3px;padding:3px;text-decoration:none;border:solid 1px black;}</style></head><body>Wags<a href='?A'>no swing</a><a href='?B'>light swing</a><a href='?C'>medium swing</a><a href='?D'>heavy swing</a><a href='?E'>jittery swing</a>Curls<a href='?a'>straight down</a><a href='?b'>slight curl back</a><a href='?c'>full curl back</a><a href='?d'>slight curl front</a><a href='?e'>full curl front</a></body></html>");
Serial.print("served ... ");
Serial.println(incomingByte, DEC);
return true;
}
void stepServoX(int delayVal,int max,int min) {
if(posX >= max){ positive = false; }
if(posX <= min){ positive = true; }
if(positive){
posX += wagStep;
}else{
posX -= wagStep;
}
servoX.write(posX);
delay(delayVal);
}
void wag() {
switch (wagPattern) {
case 66:
// B. light wag
stepServoX(50,maxRange,minRange);
break;
case 67:
// C. medium wag
stepServoX(25,maxRange,minRange);
break;
case 68:
// D. heavy wag
stepServoX(5,maxRange,minRange);
break;
case 69:
// E. shiver
stepServoX(5,median+10,median-10);
break;
default:
// A. no wag
servoX.write(median);
positive = true;
}
}
void curl(){
switch (curlPattern) {
case 98:
// b. light curl back
servoY.write(median+30);
break;
case 99:
// c. heavy curl back
servoY.write(maxRange);
break;
case 100:
// d. light curl front
servoY.write(median-30);
break;
case 101:
// e. heavy curl front
servoY.write(minRange);
break;
default:
// a. straight down
servoY.write(median);
}
}
void loop(){
WiServer.server_task();
wag();
curl();
}
Thanks!
--
Rock
