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SainSmart Ethernet Shield W5100 for Arduino UNO R3 MEGA 2560 Duemilanove

3.7 3.7 out of 5 stars 72 ratings
Currently unavailable.
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  • For all version of arduino Main board, 2009 , UNO, mega 1280, mega 2560, Nano, Duemilanove
  • With this Ethernet Shield, your Arduino board can be used to connect to internet
  • Controller: w5100, works as server or client
  • Comes with efficient library and examples
  • Direct plug puzzle board, NO soldering needed

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Product Description

The SainSmart Ethernet Shield for Arduino allows an Arduino board to connect to the internet. It is based on the Wiznet W5100 ethernet chip. The Wiznet W5100 provides a network (IP) stack capable of both TCP and UDP. It supports up to four simultaneous socket connections. Use the Ethernet library to write sketches which connect to the internet using the shield. The new Ethernet shield now includes a micro SD card connector, it is MEGA compatible and an on-board reset controller. The ethernet shield connects to an Arduino board using long wire-wrap headers which extend through the shield. This keeps the pin layout intact and allows another shield to be stacked on top.vArduino uses digital pins 10, 11, 12, and 13 (SPI) to communicate with the W5100 on the ethernet shield. These pins cannot be used for general i/o. Features : Can be used as server or client. Directly plug puzzle board, no soldering required. Based on the Wiznet W5100 Ethernet Chip. Directly supported by Arduino official Ethernet Library. Adds a micro-SD card slot, which can be used to store files for serving over the network. Compatible with the Arduino Duemilanove (168 or 328), Uno as well as Mega (1280/2560) and can be accessed using the SD library. MAC address: 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };. Package Content : 1 x Ethernet Shield.

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SainSmart

SainSmart Ethernet Shield W5100 for Arduino UNO R3 MEGA 2560 Duemilanove

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Customer reviews

3.7 out of 5 stars
3.7 out of 5
72 global ratings

Customers say

Customers like the performance, quality and value of the single board computer. For example, they mention it works great with the ethernet and SD library, and is a very good deal for your money. That said some complain about the alignment, saying the pins don't seem to align properly. Opinions are mixed on fit and ease of installation.

AI-generated from the text of customer reviews

26 customers mention23 positive3 negative

Customers like the performance of the single board computer. They mention that it works flawlessly, and with the ethernet and SD library. Some say that it runs perfectly, and that it worked right out of the box with the default W5100 libraries. They also say that the coding seems to work fine.

"...update: After 4 months still no problem, works flawlessly. BUT amazon has increased the price from $10 to $23" Read more

"...give this 3.3 stars for the fact that this board does connect and so far perform...." Read more

"Great little board, worked right out of the box with the default W5100 libraries. Easily as good as any of the first party ones...." Read more

"...go from the ICSP pins on my UNO to the ones on the shield and everything worked great...." Read more

17 customers mention12 positive5 negative

Customers like the quality of the single board computer. They say it's a good product, works right out of the box, and is a great little board. Some mention that it'll be good for research and development.

"...Packaging was sufficient.The quality seems to be good, no bent pins etc, fits nicely on top of the UNO..." Read more

"Great little board, worked right out of the box with the default W5100 libraries. Easily as good as any of the first party ones...." Read more

"...Initially, I was vexed at the poorly crafted hardware (pins, alignment, etc.), the poor packing bending some pins, and gave this only three stars...." Read more

"...no complaints yet. quality of construction is good too. no cheap connectors as on so many of the cheaper boards...." Read more

7 customers mention7 positive0 negative

Customers appreciate the value of the single board computer. They say it's a very good deal for your money.

"This SainSmart shield is very inexpensive, but worked with my Arduino UNO R3 just fine...." Read more

"...The cost is half of other offerings yet all the features and Arduino library support are there...." Read more

"...strongly recommend the component, is at least 40% cheaper, very good deal for your money." Read more

"Works great with the Arduino Uno!!! This product was well priced and arrived on time! Easy setup and easy to test to make sure it works." Read more

8 customers mention3 positive5 negative

Customers are mixed about the fit of the shield. Some mention that it works fine, has a very tight fit, and fits nicely on top of the UNO, while others say that it's not a perfect fit and the pins are a tight fit. Some customers also mention that the shield won't fit in the Arduino enclosure and won' t fit on a Mega2560 board without a lot of effort.

"...For me they were very tight fitting, they definitely didn't slide down into the shield below, but this is my first shield, so I haven't had any..." Read more

"...The quality seems to be good, no bent pins etc, fits nicely on top of the UNOBought this to replace a wifi shield ($90)...." Read more

"...The alignment of the headers is off and it won't fit on a Mega2560 board without a lot of effort...." Read more

"...The shield fits the genuine arduino rev3 perfectly. Up and running quickly. 2 pins very slightly bent during shipping, but not an issue...." Read more

7 customers mention3 positive4 negative

Customers are mixed about the ease of installation. Some mention it's easy to setup and simple to use, while others say that it'd be difficult to install and irritating to set up.

"...Was very simple to use after finding all the documentation online.http://arduino.cc/en/Reference/EthernetBegin..." Read more

"...It is difficult to put on ... but, possible. My board arrived in a postal package ... and the pins were bent when opened...." Read more

"...This product was well priced and arrived on time! Easy setup and easy to test to make sure it works." Read more

"...The shield was a bit difficult to get plugged up -- the second header is slightly offset so it doesn't align 100% (but still works)...." Read more

9 customers mention0 positive9 negative

Customers are dissatisfied with the alignment of the board. They mention that the pins do not seem to align properly, it requires re-soldering to fix poor alignment issues, and that the header pins are too short. Some customers also report that the board was packaged poorly, bending some pins.

"...Further, I think this is a design failure of not making the pins long enough for the Ethernet port to clear the Arduino UNO R3 USB port?..." Read more

"...Other reviews have mentioned the pins not lining up...." Read more

"...The alignment of the headers is off and it won't fit on a Mega2560 board without a lot of effort...." Read more

"...to get plugged up -- the second header is slightly offset so it doesn't align 100% (but still works)...." Read more

3 customers mention0 positive3 negative

Customers are dissatisfied with the mac address of the single board computer. They mention that it's not assigned and that the printer failed to print the address to the terminal.

"...for " DHCP Address Printer" as of this date ... failed to print the address to the terminal. I did not take time to debug it...." Read more

"...I would have given it 5 stars but it does have 2 cons:1. No mac address assigned. - but is well documentated2...." Read more

"...The pins absolutely do not align, and there is no MAC address! This is a SCAM!" Read more

Top reviews from the United States

kw
5.0 out of 5 stars For ~$10 this is a great deal
Reviewed in the United States on June 14, 2013
Verified Purchase
Delivery was scheduled to be 6-8 weeks from China, but came after ~10 days. Packaging was sufficient.

The quality seems to be good, no bent pins etc, fits nicely on top of the UNO

Bought this to replace a wifi shield ($90).
After 5 minutes of software changes (replacing the wifi libraries with the ethernet libraries) it worked with the UNO flawlessly.

As for the MAC number, I created a random one (took the one from the arduino example and changed 2 hex numbers. As I have < 20 devices on my network, the likelihood that it will conflict with another device is VERY small - you can actually check on your router for existing MAC addresses on your network.

The speed is ~ 10 times faster than the wifi shield.

Again for $10 this is outstanding.

Would recommend to buy.

update: After 4 months still no problem, works flawlessly. BUT amazon has increased the price from $10 to $23
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TX-One
4.0 out of 5 stars Linux Based, Arduino IDE Ethernet Examples = Passed, Hardware/Design Anomalies = Difficult to Install, Poor Packing
Reviewed in the United States on September 16, 2017
Verified Purchase
Score: 3.5 out of 5
3.3 Connect and Testing So Far
0.2 Considering the price of an Arduino.org board

...deductions reflect hardware problems overcame and packing
-1.5 Design created problems, no box and poor packing

... A Linux Mint Arduino IDE installation
This is a revision of my original review and reflects further learning. All of my interface with this board has been through my Linux Mint desktop. The Arduino ide is in the repository for installation ... so it is an easy install. The board ... once the hardware problems were overcame was recognized immediately by the Arduino ide running on my Linux workstation. This is a rough description of my install and initial test of this product.
... Hardware Install Problems/Workarounds
The pins do not seem to align properly with the Arduino UNO R3. It is difficult to put on ... but, possible. My board arrived in a postal package ... and the pins were bent when opened. It was finally inserted but, this took some time, ... as the insertion is difficult. Rocking and light movements are necessary to prevent bending the pins. This is because the pins do not perfectly line up. After insertion, the Ethernet port soldered pins touched the metal Arduino UNO R3 USB connector. This led me to insulate the USB connector from the Ethernet shield through the use of insulating tape and a paper insert. Note, that this required taking the board off, insulating the top of the USB port ... and then having to do a difficult insertion again. Maybe, do this first, if you buy this board? Further, I think this is a design failure of not making the pins long enough for the Ethernet port to clear the Arduino UNO R3 USB port? This is my guess ...
...
Tests Made
After insertion the board did make a connection. One The Arduino IDE example sketch for " DHCP Address Printer" as of this date ... failed to print the address to the terminal. I did not take time to debug it. However, it set the MAC address that I made up for the board. After running the above sketch, ... I unplugged and reinserted the UNO USB cable to cycle power. Next, on a Linux Mint Konsole command line I retrieved the ethernet interface by issuing "ip a". It is eth1. I used this information to run an "arp-scan --interface eth1 -l" and checked the devices on my network against the MAC address I had assigned the board. I visually verified that my set MAC address was in the results with a corresponding assigned IP address assigned. This verified the board's connectivity. I was able to ping the board from the command line also.

Last, using the Arduino ide, I successfully executed an Arduino library example sketch, described as "Web Server: Host a simple HTML page that displays analog sensor values." This sketch compiled, downloaded to the shield and ran perfectly. I used the Arduino IP address in my Chrome browser to verify that analog values from the Arduino were displayed.

Initially, I was vexed at the poorly crafted hardware (pins, alignment, etc.), the poor packing bending some pins, and gave this only three stars. But, in taking into account the cost of an Arduino.org branded Ethernet card and the fact that it is here, and that it seems to work ... I am keeping it. Really, I would give this 3.3 stars for the fact that this board does connect and so far perform. I added, .2 for the price compared to the Arduino.org alternative ... if it could be found. The rest is a deduction for the bad hardware implementation ... to save a few cents?

Would I buy this again? I would try some other vendor's product first.
One person found this helpful
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Camper50
2.0 out of 5 stars Old Design
Reviewed in the United States on May 1, 2013
Verified Purchase
This board is not designed for Newer R3 versions. There are no pass through pins to support the SLA and SCL pins. The board had ground grid in the pcb area where you would want to drill and put your own pins in, but will/did short.

Also, the Ethernet connector solder points needed to be trimmed to get all the pins to mate.

It does work, but you get what you pay for.
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E. Klein
5.0 out of 5 stars SainSmart Ethernet Shield W5100
Reviewed in the United States on August 1, 2013
Verified Purchase
Great little board, worked right out of the box with the default W5100 libraries. Easily as good as any of the first party ones.

My only gripe is that it isn't a licensed board, so Arduino makes no money off of this purchase, but honestly I couldn't have afforded the official board at over double the price.

Otherwise great, and works with the built in example files (some of them. Others of the example files aren't up to date, so they return errors from the websites).

Other reviews have mentioned the pins not lining up. For me they were very tight fitting, they definitely didn't slide down into the shield below, but this is my first shield, so I haven't had any other shield-compatability experiences. If you have issues with the pins lining up, put them against the edge of a desk to straighten them out and bend as required. Again, I didn't need to, it fit out of the package, it was just very very tight.
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Milkat
3.0 out of 5 stars Trouble with stacking due to lack of foresight in manufacturing
Reviewed in the United States on May 18, 2015
Verified Purchase
So after about an hour of troubleshooting why I couldn't get the example DHCPprintaddress sketch from the Arduino IDE to work I used jumpers to go from the ICSP pins on my UNO to the ones on the shield and everything worked great. A little pin checking revealed that the MISO, MOSI and SCK pins on the 6 pin ICSP header don't go to pins 12,11 & 13 respectively on the board as they do on the UNO. This wouldn't be an issue if the ICSP header where the same length as all the pins but as it is the header isn't long enough to make contact with the pins on the UNO. So the short version it is works but you need to either use jumpers or spend sometime cutting 24 header pins, which then probably wont slot nicely into the UNO.
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prggr
1.0 out of 5 stars Too many flaws
Reviewed in the United States on March 26, 2015
Verified Purchase
These are in no ware comparable to the Arduino branded R3 ethernet shields (http://www.amazon.com/Arduino-Rev3-Ethernet-Shield-R3/dp/B006UT97FE). The header pins are too short, so the board will interfere with components on your Arduino. The alignment of the headers is off and it won't fit on a Mega2560 board without a lot of effort. Once hooked up with a shield in between, it caused problems with the board that were not happening with the Arduino board.

I have no problems with the Sainsmart Mega2560 boards, but I would stick to the Arduino ethernet shields until someone actually has a proper clone of their R3 board.
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Top reviews from other countries

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Isaac M.
5.0 out of 5 stars Maravillo Producto para hacer tus Proyectos
Reviewed in Mexico on April 14, 2020
Verified Purchase
Para el precio que tiene, me funciono muy bien para mi proyecto del Internet de las Cosas (IoT).
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Art
5.0 out of 5 stars Solid Ethernet board that's plug and play
Reviewed in Canada on July 14, 2016
Verified Purchase
Good solid Arduino Ethernet shield that worked perfectly for the project. Super easy to install and use. Worked out of the box. I've purchased many different products from SainSmart and have never been dissaponted. Their quality seems excellent and they support what they sell.
One person found this helpful
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白岩太郎
5.0 out of 5 stars 使いやすいEthernetシールド
Reviewed in Japan on February 4, 2016
Verified Purchase
IDEに付属のEthernetサンプルも一切手を加えることなく動いていますので、安心です。また、シールドのPINはしっかり刺さないと動作しません、改善して欲しいです。
3 people found this helpful
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Cliente de Amazon
4.0 out of 5 stars Bien
Reviewed in Mexico on July 8, 2018
Verified Purchase
Todo correctamente
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JohnX
4.0 out of 5 stars packaging not great -headers pins arrived all bent
Reviewed in Canada on April 3, 2018
Verified Purchase
Worked right away with sample ethernet sketch. However, packaging not great -headers pins arrived all bent. Board design, not so great - pins don't align perfect on one side & the eithernet jack solder points short out against the top of the usb jack (bottom board). Headers pins needed to be longer, and something to protect aganst a short. My kids would not have realized. But price was good, just has ugly fit. Same on mega or uno r3 board.
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