CuHead WiFi Shield for Arduino V2.0 - Revision history

Yajuan.dai: /* Introduction */

2014-08-27T09:10:10Z

‎Introduction

Alvin: /* How to buy */

2014-02-18T06:35:53Z

‎How to buy

Alvin: /* How to buy */

2014-02-18T06:33:07Z

‎How to buy

Alvin: /* How to buy */

2014-02-18T06:30:18Z

‎How to buy

Jingfeng: /* Blogs */

2013-05-27T06:07:45Z

‎Blogs

Jingfeng: /* Resources */

2013-05-27T06:05:54Z

‎Resources

Katherine.d: /* FAQ */

2013-04-19T02:26:41Z

‎FAQ

Katherine.d: /* FAQ */

2013-04-19T02:26:08Z

‎FAQ

Katherine.d: /* FAQ */

2013-04-19T02:24:42Z

‎FAQ

Katherine.d: /* FAQ */

2013-04-19T02:24:02Z

‎FAQ

@@ Line 7: / Line 7: @@
 The second revision of this board has all the components in surface mount form. The new and exciting feature of the second revision of this board is the addition of a 16Mbit serial flash for storing web pages and other data! This additional storage space can be used for storing more complex and feature rich webpages, as well as sensor type data to be downloaded at a future time.
-[[File:Cuhead 1.jpg]]
+[[File:CuHead WiFi Shield for Arduino V2.0A.jpg]]
 == Features  ==

@@ Line 348: / Line 348: @@
 == How to buy  ==
-Here to buy CuHead V2.0 on store [http://store.linksprite.com/cuhead-wifi-shield-v2-0-for-arduino/]
+Here to buy CuHead V2.0 on [http://store.linksprite.com/cuhead-wifi-shield-v2-0-for-arduino/ store]
 == See Also  ==

@@ Line 348: / Line 348: @@
 == How to buy  ==
-Here to buy CuHead V2.0
+Here to buy CuHead V2.0 on store [http://store.linksprite.com/cuhead-wifi-shield-v2-0-for-arduino/]
 == See Also  ==

@@ Line 348: / Line 348: @@
 == How to buy  ==
-Here to buy CuHead V2.0 [http://www.linkspritedirect.com/product_info.php?products_id=125 CUHEADWIFIV2] on [http://www.linkspritedirect.com/index.php linksprite Direct]
+Here to buy CuHead V2.0
 == See Also  ==

@@ Line 344: / Line 344: @@
 *[http://www.cutedigi.com/blog/?p=19 Detailed tutorial on CuHead by CuteDigi]
 *[http://www.cutedigi.com/blog/?p=107  How to Compile and Test Sample SocketApp of LinkSprite’s CuHead WiFi Shield]
 == How to buy  ==

@@ Line 337: / Line 337: @@
 *[http://www.linksprite.com/article/shownews.php?lang=en&id=106 Can CuHead WiFi Shield be used with Arduino Mega?]
 *[https://s3.amazonaws.com/linksprite/Shields/CuHead_Arduino/Wifi+Shield+Chip-MRF24WB0MADatasheet.pdf Wifi Shield Chip-MRF24WB0MA Datasheet]
 *[https://s3.amazonaws.com/linksprite/Shields/CuHead_Arduino/Cuhead+Wifi+Shield+for+Arduino+User+Guide_v1.pdf User Guide of CuHead]
 *[https://github.com/linksprite/ZG2100BasedWiFiShield ZG2100 based Wifi Shield]
 *[http://www.alldatasheet.com/view.jsp?Searchword=ZG2100MC datasheet of ZG2100MC]
 == How to buy  ==

@@ Line 314: / Line 314: @@
 pinMode(2, INPUT);
 pinMode(10, INPUT);
 pinMode(11, INPUT);
 pinMode(12, INPUT);
 pinMode(13, INPUT);

@@ Line 297: / Line 297: @@
 the Mega not only remapped the SPI pins, it also remapped the interrupt pins. The ZeroG board triggers an interrupt when it needs the host to do something. This is why the WiShield would init, and then nothing else. If you attach a scope or a LED to the WiShield interrupt pin (pin2/int0), you can see it going low but never getting serviced.
 On the Duemilanove, Arduino Pin 2 goes to INT0/PD2 on the ATMega328. On the Mega, Arduino Pin 2 goes to PE4, which is not an interrupt at all.
-*(1) Bend out pin 2 on the WiShield similar to how pins 10,11,12,13 are bent out.
-*(2) Jumper this pin on the WiShield to pin 21 on the Arduino Mega.
+(1) Bend out pin 2 on the WiShield similar to how pins 10,11,12,13 are bent out.
-*(3) In "WiServer.cpp" and "WiShield.cpp" change "attachInterrupt(0, zg_isr, LOW);" to "attachInterrupt(2, zg_isr, LOW);". This may be counterintutive, but from the documentation, it seems the Arduino development environment maps interrupt pin 2 to 21. See [http://www.arduino.cc/en/Reference/AttachInterrupt AttachInterrupt] for details.
 For extra credit, if you don't like mangling the pins on your beautiful WiShield, connect the jumpers and turn pins 2,10,11,12,13 into high-impedance inputs. Note this means you can't use them for other purposes but they can remain electrically connected.
 pinMode(2, INPUT);

@@ Line 270: / Line 270: @@
 '''Q6. [[Can CuHead WiFi Shield be used with Arduino Mega?]]'''
 To make the WiShield work on mega follow the NKC tutorial on wiring up the Ethernet shield http://mcukits.com/2009/04/06/arduino-ethernet-shield-mega-hack/
 and make the following changes to spi.h (in hardware\libraries\wishield):
    #define SPI0_SS_BIT                                    BIT0

← Older revision		Revision as of 02:24, 19 April 2013
Line 270:		Line 270:

	'''Q6. [[Can CuHead WiFi Shield be used with Arduino Mega?]]'''		'''Q6. [[Can CuHead WiFi Shield be used with Arduino Mega?]]'''
		+	To make the WiShield work on mega follow the NKC tutorial on wiring up the Ethernet shield http://mcukits.com/2009/04/06/arduino-ethernet-shield-mega-hack/
		+
		+	and make the following changes to spi.h (in hardware\libraries\wishield):
		+
		+	To all Arduino Mega Users:
		+
		+	To make the WiShield work on mega follow the NKC tutorial on wiring up the Ethernet shield http://mcukits.com/2009/04/06/arduino-ethernet-shield-mega-hack/
		+
		+	and make the following changes to spi.h (in hardware\libraries\wishield):
		+
		+	#define SPI0_SS_BIT BIT0
		+	...
		+	#define SPI0_SCLK_BIT BIT1
		+	...
		+	#define SPI0_MOSI_BIT BIT2
		+	...
		+	#define SPI0_MISO_BIT BIT3
		+	...
		+	#define SPI0_Init() PRR0 = 0x00;\
		+	DDRB \|= SPI0_SS_BIT\|SPI0_SCLK_BIT\|SPI0_MOSI_BIT\|LEDConn_BIT;\
		+	DDRB &= ~SPI0_MISO_BIT;\
		+	PORTB = SPI0_SS_BIT;\
		+	SPCR = 0x50;\
		+	SPSR = 0x01
		+	...
		+	#define ZG2100_CS_BIT BIT0
		+	...
		+	#define LEDConn_BIT BIT5
		+
		+
		+	the Mega not only remapped the SPI pins, it also remapped the interrupt pins. The ZeroG board triggers an interrupt when it needs the host to do something. This is why the WiShield would init, and then nothing else. If you attach a scope or a LED to the WiShield interrupt pin (pin2/int0), you can see it going low but never getting serviced.
		+
		+	On the Duemilanove, Arduino Pin 2 goes to INT0/PD2 on the ATMega328. On the Mega, Arduino Pin 2 goes to PE4, which is not an interrupt at all.
		+
		+	*(1) Bend out pin 2 on the WiShield similar to how pins 10,11,12,13 are bent out.
		+	*(2) Jumper this pin on the WiShield to pin 21 on the Arduino Mega.
		+	*(3) In "WiServer.cpp" and "WiShield.cpp" change "attachInterrupt(0, zg_isr, LOW);" to "attachInterrupt(2, zg_isr, LOW);". This may be counterintutive, but from the documentation, it seems the Arduino development environment maps interrupt pin 2 to 21. See [http://www.arduino.cc/en/Reference/AttachInterrupt AttachInterrupt] for details.
		+
		+	For extra credit, if you don't like mangling the pins on your beautiful WiShield, connect the jumpers and turn pins 2,10,11,12,13 into high-impedance inputs. Note this means you can't use them for other purposes but they can remain electrically connected.
		+
		+	pinMode(2, INPUT);
		+	pinMode(10, INPUT);
		+	pinMode(11, INPUT);
		+	pinMode(12, INPUT);
		+	pinMode(13, INPUT);
		+
		+

	'''Q7. With this shield can I connect the arduino to my internet router and send instructions from my phone, when I’m at work for example, and say to my arduino to open my air-condition at home? '''		'''Q7. With this shield can I connect the arduino to my internet router and send instructions from my phone, when I’m at work for example, and say to my arduino to open my air-condition at home? '''