Arduino Ethernet - Revision history

Admin at 07:01, 4 January 2012

2012-01-04T07:01:27Z

← Older revision		Revision as of 07:01, 4 January 2012
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	[[Image:ArduinoEthernetFrontPOE.jpg]]		[[Image:ArduinoEthernetFrontPOE.jpg]]

			==How to buy==
			Click here:

Admin: /* Setup */

2012-01-04T03:19:47Z

Setup

← Older revision		Revision as of 03:19, 4 January 2012
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	If you want to use a FTDI cable to download your sketches on the Arduino Ethernet, please refer to this guide: [http://scuola.arduino.cc/en/content/upgrade-arduino-ethernet-bootloader-latest-version Upgrade the Arduino Ethernet bootloader to the latest version]		If you want to use a FTDI cable to download your sketches on the Arduino Ethernet, please refer to this guide: [http://scuola.arduino.cc/en/content/upgrade-arduino-ethernet-bootloader-latest-version Upgrade the Arduino Ethernet bootloader to the latest version]

			[[Image:ArduinoEthernetFrontPOE.jpg]]

Admin: /* Memory */

2012-01-04T03:18:57Z

Memory

← Older revision		Revision as of 03:18, 4 January 2012
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	==Memory==		==Memory==

			[[Image:ArduinoEthernetBack.jpg]]

	The ATmega328 has 32 KB (with 0.5 KB used for the bootloader). It also has 2 KB of SRAM and 1 KB of EEPROM (which can be read and written with the EEPROM library).		The ATmega328 has 32 KB (with 0.5 KB used for the bootloader). It also has 2 KB of SRAM and 1 KB of EEPROM (which can be read and written with the EEPROM library).

Admin: /* Power */

2012-01-04T03:18:13Z

Power

← Older revision		Revision as of 03:18, 4 January 2012
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	==Power==		==Power==

			[[Image:ArduinoEthernetFront.jpg]]

	The board can also be powered via an external power supply, an optional Power over Ethernet (PoE) module, or by using a FTDI cable/USB Serial connector.		The board can also be powered via an external power supply, an optional Power over Ethernet (PoE) module, or by using a FTDI cable/USB Serial connector.

Admin: /* Setup */

2012-01-04T03:16:28Z

Setup

← Older revision		Revision as of 03:16, 4 January 2012
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	With this board you need to change the boards.txt file in your Arduino directory (find it in: "Arduino-00xx > hardware > arduino") with this updated version that include also the Mega ADK board:		With this board you need to change the boards.txt file in your Arduino directory (find it in: "Arduino-00xx > hardware > arduino") with this updated version that include also the Mega ADK board:

	Arduino 0022 or older boards.txt		Arduino 0022 or older [http://arduino.cc/en/uploads/Main/boards.txt.zip boards.txt]

	Arduino 1.0 Beta boards1.0.txt		Arduino 1.0 Beta [http://arduino.cc/en/uploads/Main/boards1.0.txt.zip boards1.0.txt]

	[To be downladed, this files are compressed into a zip archive, so you need to unzip them into the directory described above.]		[To be downladed, this files are compressed into a zip archive, so you need to unzip them into the directory described above.]

	If you want to use a FTDI cable to download your sketches on the Arduino Ethernet, please refer to this guide: [http://scuola.arduino.cc/en/content/upgrade-arduino-ethernet-bootloader-latest-version Upgrade the Arduino Ethernet bootloader to the latest version]		If you want to use a FTDI cable to download your sketches on the Arduino Ethernet, please refer to this guide: [http://scuola.arduino.cc/en/content/upgrade-arduino-ethernet-bootloader-latest-version Upgrade the Arduino Ethernet bootloader to the latest version]

Admin: /* Setup */

2012-01-04T03:15:48Z

Setup

← Older revision		Revision as of 03:15, 4 January 2012
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	With this board you need to change the boards.txt file in your Arduino directory (find it in: "Arduino-00xx > hardware > arduino") with this updated version that include also the Mega ADK board:		With this board you need to change the boards.txt file in your Arduino directory (find it in: "Arduino-00xx > hardware > arduino") with this updated version that include also the Mega ADK board:

	Arduino 0022 or older boards.txt		Arduino 0022 or older boards.txt

	Arduino 1.0 Beta boards1.0.txt		Arduino 1.0 Beta boards1.0.txt

	[To be downladed, this files are compressed into a zip archive, so you need to unzip them into the directory described above.]		[To be downladed, this files are compressed into a zip archive, so you need to unzip them into the directory described above.]
	If you want to use a FTDI cable to download your sketches on the Arduino Ethernet, please refer to this guide: Upgrade the Arduino Ethernet bootloader to the latest version
			If you want to use a FTDI cable to download your sketches on the Arduino Ethernet, please refer to this guide: [http://scuola.arduino.cc/en/content/upgrade-arduino-ethernet-bootloader-latest-version Upgrade the Arduino Ethernet bootloader to the latest version]

Admin: /* Programming */

2012-01-04T03:15:04Z

Programming

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	It is possible to program the Arduino Ethernet board in two ways: through the 6 pin serial programming header, or with an external ISP programmer.		It is possible to program the Arduino Ethernet board in two ways: through the 6 pin serial programming header, or with an external ISP programmer.

	The 6-pin serial programming header is compatible with FTDI USB cables and the Sparkfun and Adafruit FTDI-style basic USB-to-serial breakout boards including the Arduino USB-Serial connector. It features support for automatic reset, allowing sketches to be uploaded without pressing the reset button on the board. When plugged into a FTDI-style USB adapter, the Arduino Ethernet is powered off the adapter.		The 6-pin serial programming header is compatible with FTDI USB cables and the Sparkfun and Adafruit FTDI-style basic USB-to-serial breakout boards including the Arduino USB-Serial connector. It features support for automatic reset, allowing sketches to be uploaded without pressing the reset button on the board. When plugged into a FTDI-style USB adapter, the Arduino Ethernet is powered off the adapter.

	You can also program the Ethernet board with an external programmer like an AVRISP mkII or USBTinyISP. To set up your environment for burning a sketch with a programmer, follow these instructions. This will delete the serial bootloader, however.		You can also program the Ethernet board with an external programmer like an AVRISP mkII or USBTinyISP. To set up your environment for burning a sketch with a programmer, follow these instructions. This will delete the serial bootloader, however.

	All the Ethernet example sketches work as they do with the Ethernet shield. Make sure to change the network settings for your network.		All the Ethernet example sketches work as they do with the Ethernet shield. Make sure to change the network settings for your network.
	Physical Characteristics
			==Physical Characteristics==

	The maximum length and width of the Ethernet PCB are 2.7 and 2.1 inches respectively, with the RJ45 connector and power jack extending beyond the former dimension. Four screw holes allow the board to be attached to a surface or case. Note that the distance between digital pins 7 and 8 is 160 mil (0.16"), not an even multiple of the 100 mil spacing of the other pins.		The maximum length and width of the Ethernet PCB are 2.7 and 2.1 inches respectively, with the RJ45 connector and power jack extending beyond the former dimension. Four screw holes allow the board to be attached to a surface or case. Note that the distance between digital pins 7 and 8 is 160 mil (0.16"), not an even multiple of the 100 mil spacing of the other pins.

Admin: /* Memory */

2012-01-04T03:14:03Z

Memory

← Older revision		Revision as of 03:14, 4 January 2012
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	The ATmega328 has 32 KB (with 0.5 KB used for the bootloader). It also has 2 KB of SRAM and 1 KB of EEPROM (which can be read and written with the EEPROM library).		The ATmega328 has 32 KB (with 0.5 KB used for the bootloader). It also has 2 KB of SRAM and 1 KB of EEPROM (which can be read and written with the EEPROM library).
	Input and Output
			==Input and Output==

	Each of the 14 digital pins on the Ethernet board can be used as an input or output, using pinMode(), digitalWrite(), and digitalRead() functions. They operate at 5 volts. Each pin can provide or receive a maximum of 40 mA and has an internal pull-up resistor (disconnected by default) of 20-50 kOhms. In addition, some pins have specialized functions:		Each of the 14 digital pins on the Ethernet board can be used as an input or output, using pinMode(), digitalWrite(), and digitalRead() functions. They operate at 5 volts. Each pin can provide or receive a maximum of 40 mA and has an internal pull-up resistor (disconnected by default) of 20-50 kOhms. In addition, some pins have specialized functions:
	Serial: 0 (RX) and 1 (TX). Used to receive (RX) and transmit (TX) TTL serial data.
	External Interrupts: 2 and 3. These pins can be configured to trigger an interrupt on a low value, a rising or falling edge, or a change in value. See the attachInterrupt() function for details.		*Serial: 0 (RX) and 1 (TX). Used to receive (RX) and transmit (TX) TTL serial data.
	PWM: 3, 5, 6, 9, and 10. Provide 8-bit PWM output with the analogWrite() function.
	SPI: 10 (SS), 11 (MOSI), 12 (MISO), 13 (SCK). These pins support SPI communication using the SPI library.		*External Interrupts: 2 and 3. These pins can be configured to trigger an interrupt on a low value, a rising or falling edge, or a change in value. See the attachInterrupt() function for details.
	LED: 9. There is a built-in LED connected to digital pin 9. When the pin is HIGH value, the LED is on, when the pin is LOW, it's off. On most other arduino boards, this LED is found on pin 13. It is on pin 9 on the Ethernet board because pin 13 is used as part of the SPI connection.
			*PWM: 3, 5, 6, 9, and 10. Provide 8-bit PWM output with the analogWrite() function.

			*SPI: 10 (SS), 11 (MOSI), 12 (MISO), 13 (SCK). These pins support SPI communication using the SPI library.

			*LED: 9. There is a built-in LED connected to digital pin 9. When the pin is HIGH value, the LED is on, when the pin is LOW, it's off. On most other arduino boards, this LED is found on pin 13. It is on pin 9 on the Ethernet board because pin 13 is used as part of the SPI connection.

	The Ethernet board has 6 analog inputs, labeled A0 through A5, each of which provide 10 bits of resolution (i.e. 1024 different values). By default they measure from ground to 5 volts, though is it possible to change the upper end of their range using the AREF pin and the analogReference() function. Additionally, some pins have specialized functionality:		The Ethernet board has 6 analog inputs, labeled A0 through A5, each of which provide 10 bits of resolution (i.e. 1024 different values). By default they measure from ground to 5 volts, though is it possible to change the upper end of their range using the AREF pin and the analogReference() function. Additionally, some pins have specialized functionality:
	TWI: A4 (SDA) and A5 (SCL). Support TWI communication using the Wire library.
			*TWI: A4 (SDA) and A5 (SCL). Support TWI communication using the Wire library.

	There are a couple of other pins on the board:		There are a couple of other pins on the board:
	AREF. Reference voltage for the analog inputs. Used with analogReference().
	Reset. Bring this line LOW to reset the microcontroller. Typically used to add a reset button to shields which block the one on the board.		*AREF. Reference voltage for the analog inputs. Used with analogReference().

			*Reset. Bring this line LOW to reset the microcontroller. Typically used to add a reset button to shields which block the one on the board.

	See also the mapping between Arduino pins and ATmega328 ports.		See also the mapping between Arduino pins and ATmega328 ports.
	Communication
			==Communication==

	The Arduino Ethernet has a number of facilities for communicating with a computer, another Arduino, or other microcontrollers.		The Arduino Ethernet has a number of facilities for communicating with a computer, another Arduino, or other microcontrollers.

	A SoftwareSerial library allows for serial communication on any of the Uno's digital pins.		A SoftwareSerial library allows for serial communication on any of the Uno's digital pins.

	The ATmega328 also supports TWI and SPI communication. The Arduino software includes a Wire library to simplify use of the TWI bus; see the documentation for details. For SPI communication, use the SPI library.		The ATmega328 also supports TWI and SPI communication. The Arduino software includes a Wire library to simplify use of the TWI bus; see the documentation for details. For SPI communication, use the SPI library.

	The board also can connect to a wired network via ethernet. When connecting to a network, you will need to provide an IP address and a MAC address. The Ethernet Library is fully supported.		The board also can connect to a wired network via ethernet. When connecting to a network, you will need to provide an IP address and a MAC address. The Ethernet Library is fully supported.

	The onboard microSD card reader is accessible through the SD Library. When working with this library, SS is on Pin 4.		The onboard microSD card reader is accessible through the SD Library. When working with this library, SS is on Pin 4.

Admin: /* Power */

2012-01-04T03:10:28Z

Power

← Older revision		Revision as of 03:10, 4 January 2012
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	The board can also be powered via an external power supply, an optional Power over Ethernet (PoE) module, or by using a FTDI cable/USB Serial connector.		The board can also be powered via an external power supply, an optional Power over Ethernet (PoE) module, or by using a FTDI cable/USB Serial connector.

	External power can come either from an AC-to-DC adapter (wall-wart) or battery. The adapter can be connected by plugging a 2.1mm center-positive plug into the board's power jack. Leads from a battery can be inserted in the Gnd and Vin pin headers of the POWER connector.		External power can come either from an AC-to-DC adapter (wall-wart) or battery. The adapter can be connected by plugging a 2.1mm center-positive plug into the board's power jack. Leads from a battery can be inserted in the Gnd and Vin pin headers of the POWER connector.

	The board can operate on an external supply of 6 to 20 volts. If supplied with less than 7V, however, the 5V pin may supply less than five volts and the board may be unstable. If using more than 12V, the voltage regulator may overheat and damage the board. The recommended range is 7 to 12 volts.		The board can operate on an external supply of 6 to 20 volts. If supplied with less than 7V, however, the 5V pin may supply less than five volts and the board may be unstable. If using more than 12V, the voltage regulator may overheat and damage the board. The recommended range is 7 to 12 volts.

	The power pins are as follows:		The power pins are as follows:
	VIN. The input voltage to the Arduino board when it's using an external power source (as opposed to 5 volts from the USB connection or other regulated power source). You can supply voltage through this pin, or, if supplying voltage via the power jack, access it through this pin.
	5V. The regulated power supply used to power the microcontroller and other components on the board. This can come either from VIN via an on-board regulator, or be supplied by USB or another regulated 5V supply.		*VIN. The input voltage to the Arduino board when it's using an external power source (as opposed to 5 volts from the USB connection or other regulated power source). You can supply voltage through this pin, or, if supplying voltage via the power jack, access it through this pin.
	3V3. A 3.3 volt supply generated by the on-board regulator. Maximum current draw is 50 mA.
	GND. Ground pins.		*5V. The regulated power supply used to power the microcontroller and other components on the board. This can come either from VIN via an on-board regulator, or be supplied by USB or another regulated 5V supply.

			*3V3. A 3.3 volt supply generated by the on-board regulator. Maximum current draw is 50 mA.

			*GND. Ground pins.

	The optional PoE module is designed to extract power from a conventional twisted pair Category 5 Ethernet cable:		The optional PoE module is designed to extract power from a conventional twisted pair Category 5 Ethernet cable:
	IEEE802.3af compliant
	Low output ripple and noise (100mVpp)		*IEEE802.3af compliant
	Input voltage range 36V to 57V
	Overload and short-circuit protection		*Low output ripple and noise (100mVpp)
	9V Output
	High efficiency DC/DC converter: typ 75% @ 50% load		*Input voltage range 36V to 57V
	1500V isolation (input to output)
	NB: the Power over Ethernet module is proprietary hardware not made by Arduino, it is a third party accessory. For more information, see the datasheet		*Overload and short-circuit protection

			*9V Output

			*High efficiency DC/DC converter: typ 75% @ 50% load

			*1500V isolation (input to output)

			NB: the Power over Ethernet module is proprietary hardware not made by Arduino, it is a third party accessory. For more information, see the datasheet

	When using the power adapter, power can come either from an AC-to-DC adapter (wall-wart) or battery. The adapter can be connected by plugging a 2.1mm center-positive plug into the board's power jack. Leads from a battery can be inserted in the Gnd and Vin pin headers of the POWER connector.		When using the power adapter, power can come either from an AC-to-DC adapter (wall-wart) or battery. The adapter can be connected by plugging a 2.1mm center-positive plug into the board's power jack. Leads from a battery can be inserted in the Gnd and Vin pin headers of the POWER connector.

	The board can operate on an external supply of 6 to 20 volts. If supplied with less than 7V, however, the 5V pin may supply less than five volts and the board may be unstable. If using more than 12V, the voltage regulator may overheat and damage the board. The recommended range is 7 to 12 volts.		The board can operate on an external supply of 6 to 20 volts. If supplied with less than 7V, however, the 5V pin may supply less than five volts and the board may be unstable. If using more than 12V, the voltage regulator may overheat and damage the board. The recommended range is 7 to 12 volts.

Admin: /* Schematic & Reference Design */

2012-01-04T03:08:07Z

Schematic & Reference Design

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	EAGLE files: [http://arduino.cc/en/uploads/Main/arduino-ethernet-reference-design.zip arduino-ethernet-reference-design.zip]		EAGLE files: [http://arduino.cc/en/uploads/Main/arduino-ethernet-reference-design.zip arduino-ethernet-reference-design.zip]

	Schematic: [http://arduino.cc/en/uploads/Main/arduino-ethernet-schematic.pdf arduino-ethernet-schematic.pdf]		Schematic: [http://arduino.cc/en/uploads/Main/arduino-ethernet-schematic.pdf arduino-ethernet-schematic.pdf]