Wiznet makers

3rd Prize

Each participant was awarded a $1,000 recognized for their exceptional efforts



Welcome to WIZnet’s annual IoT design contest!
The TOE Contest is the ultimate test of your IoT skills and creativity. With the powerful W5300 network controller chip at your disposal, you'll be able to bring your IoT vision to life like never before. Whether you're a seasoned pro or just getting started, this contest is your chance to shine and win some amazing prizes


WIZnet TOE (TCP/IP Core Offload Engine) is a wired TCP/IP embedded ethernet controller that provides users with easy and effective Internet connection when combined with an embedded system. Users can create various applications based on Ethernet protocols by using the Socket API provided by the TOE's Hardwired TCP/IP stack.
The advantages of TOE (TCP/IP Offload Engine) are that it does not require a separate embedded system software stack and memory resources for internet connections. Also, all Ethernet transmission and reception operations are processed by an independent Ethernet controller, so it maintains superior stable Ethernet performance compared to the Software TCP/IP Stack, which is vulnerable to changes in the network environment and DDoS and Flooding attacks.
Therefore, even in low-spec embedded systems, using WIZnet TOE can show more efficient performance for internet application operation than high-spec systems using Software TCP/IP Stack.
Functionally, TOE's hardwired TCP/IP stack supports TCP, UDP, IPv4/IPv6, ICMP, ARP, IGMP, PPPoE protocols; and depending on the chip, it is possible to define 8 (or 4) sockets and allocate memory buffers to each socket to build an independent Ethernet protocol transmission and reception environment.

Hardware to be used

For this contest we decided to focus on performance and selected W5300 to be the main component for the projects.
The W5300 network controller chip by WIZnet is a high-performance solution for embedded Internet connectivity. With its built-in hardwired TCP/IP stack, the W5300 provides reliable, fast, and efficient Internet connectivity for a wide range of embedded applications.
One of the key features of the W5300 is its support for 10/100 Mbps Ethernet, which ensures that data transfer speeds are fast and efficient. Additionally, the chip has 8 independent sockets that enable concurrent connections, allowing for multiple devices to be connected and communicate at the same time.
The built-in hardware TCP/IP stack is another highlight of the W5300, as it eliminates the need for users to develop the TCP/IP code from scratch. This stack supports a range of Internet protocols, including IPv4, TCP, UDP, ICMP, ARP, IGMP, and PPPoE, ensuring that the W5300 can be used in a wide range of Internet-connected applications.
In addition to its built-in TCP/IP stack and versatile operating modes, the W5300 also features an 8/16-bit parallel bus interface, which allows for high-speed communication between the chip and the microcontroller. This parallel bus interface provides a fast and efficient way to transfer data between the W5300 and the microcontroller, making it possible to achieve high performance in applications that require real-time data processing and communication.
Overall, the 8/16-bit parallel bus interface is just one more example of the high-performance features that the W5300 network controller chip has to offer. Whether you need fast and reliable Internet connectivity, multiple concurrent connections, or real-time data processing and communication, the W5300 is a top-notch solution that can meet your needs.

Where to get hardware for contest?
We will be running special price promotion for W5300 (5 USD) and new W5300-TOE-Shield (10 USD) at our online stores.


Get 2ea W5300 for FREE with the purchase of a W5300-TOE-Shield!

Shipping charges will be covered by WIZnet while duties are paid by the customer if applicable. Participants of the contest will have the option to purchase the contest product at any preferred store, subject to availability and compliance with the applicable terms and conditions of the store.

However, special price and event are applied only at WIZnet online stores.




Administrator: WIZnet CO., Ltd. 5F Humax Village, 216 Hwangsaeul-ro, Bundang-gu Seongnam-si, Gyeonggi-do, 13595 Korea


How It Works

Contest Period


You are eligible to enter if you meet the following requirements at time of entry:

  • You are at least 13 years of age;
  • You are not a resident of Belarus, Cuba, Iran, North Korea, Russia, Sudan, Syria, Ukraine, Venezuela;
  • You are not involved in the execution or administration of this contest;
  • You are not an immediate family member or household member of a WIZnet employee, officer, director, representative of WIZnet, or any of their respective parents, subsidiaries, or affiliates.

Submission Requirements

  • You must create a WIZnet Makers account;
  • Your entry must be your own original work;
  • Your entry cannot have been selected as a winner in any other WIZnet contest;
  • Your team is no more than 5 members per entry;
  • W5300 chip or W5300-ToE-Shield shall be used in the submission project;
  • All code must be published to a public code repository on GitHub and licensed under the open-source 3-Clause BSD License.

Judging criteria

All project submissions will be judged according to the criteria below:

  • Content registration (20 points)
    Key points: ex) Summary of ideas, circuit diagrams (if necessary), main codes, deliverables, demo video or a project post on your SNS (Blog, YouTube, etc).
  • Quality of final submission (50 points)
    Post quality can be graded by the explanation level of either post or video, number of views (YouTube), etc.
  • Technical level (10 points)
  • Creativity (10 points)
  • Reusability of the submission (10 points)

How to participate

Step 1. Create a WIZnet Makers account
              Start by creating a free account (or sign-in if already a member)
Step 2. Build and document your project
              Build your project according to submission requirements
              Document your project using WIZnet Maker’s project template. To create a new project, click “Contest” menu, select TOE Contest and press “Submit” button
Step 3. Review and submit your project
              Make sure your project meets all the submission requirements
              Submit your project by August 20, 2023 23:59:59 (GMT +9)

The final project submission should have following:

  • Basic information, including the project title and elevator pitch
  • Bill of Materials, including all hardware, software OSs, apps, online services and other handtools and fabrication machines
  • Full story on how your application project works, including videos and images
  • Relevant resources, including code, schematics, and CAD files (if relevant)
  • Project description must be written in English or Korean

What other conditions am I agreeing to by entering?
By entering this contest, you are agreeing to the following statements:

  • You agree to abide by these full rules;
  • You agree to abide by the policies outlines on WIZnet’s website, including Terms of Service, Code of Conduct, and Privacy Policy;
  • You agree to release and hold harmless WIZnet and their retrospective parents, subsidiaries, affiliates, employees, and agents from any and all liabilities or any injuries, losses or damages of any kind arising from or in connection with this contest, or any prize won;
  • You agree that your personal data including your name email address, personal address, phone number, and any other personal information disclosed during the duration of this contest may be shared with and used by WIZnet in order to facilitate the execution of this contest;
  • You agree that WIZnet’s decisions will be final and binding on all matters related to this contest;
  • You agree that, by accepting a prize, WIZnet may use your proper name and state of residence online and in print or any other media, in connection with his contest, without payment or compensation to you, except where prohibited the law.

Important note about Copyright

Your entry must only consist of material (such as hardware, source code, user interface, music, video, or images) that you either own or have obtained permission from the copyright/trademark owner to use. Your entry cannot include any copyrighted material (such as source code, user interface, background music, images, or video) unless you have ownership or the necessary authorization. Simply purchasing a CD or using a copyrighted recording or application's user interface does not count as ownership and may result in your entry being disqualified. If you use copyrighted material that you are allowed to use, you must include the proper credits, including the artist/creator and licensing information. Keep in mind, even material that is available under licenses like Creative Commons, open source code licenses, or similar licenses may require permission or citation as per the specific license terms.

What potential uses are there for my entry?

Apart from the specific provisions outlined below, we do not claim any ownership rights to your entry. However, upon submitting your entry, you are agreeing to ALL of the following statements:

  • You grant us an irrevocable, royalty-free, worldwide right and license to: (i) utilize, review, assess, test, and analyze your entry and all its contents in relation to this contest. (ii) showcase your entry and its content to promote, market, or sell this contest (including, but not limited to, internal and external sales meetings, conference presentations, tradeshows, and using screenshots of your contest entry in press releases) across all media channels, whether currently known or developed in the future.
  • You commit to signing any necessary documentation that might be required for us and our representatives to exercise the rights mentioned above.
  • You acknowledge that after the submission deadline has passed, any entry submitted to the contest cannot be deleted or made private, and it will remain visible on the contest page even after the contest has concluded.
  • You understand and accept that the sponsor(s) may have previously developed or commissioned materials that are similar or identical to your submission, and you waive any claims arising from such similarities in your entry.
  • You acknowledge that you will not receive any compensation or credit for the use of your entry, other than what is described in the complete rules.

Please be aware that following the conclusion of this contest, your entry may be posted on various websites selected by us for viewing by visitors to that website. We are not accountable for any unauthorized use of your entry by visitors to this website. While we retain these rights, we are not obligated to utilize your entry for any purpose, even if it has been chosen as a winning entry. If you are unwilling to grant us these rights to your entry, kindly refrain from participating in this contest.

How are prizes awarded?
Limit one (1) prize per person or team. In the event of a tie between any eligible entries, an additional judge will break the tie based on the judging criteria described above. The decisions of the judges are final and binding. 
Potential winners will be required to sign and return a Declaration of Compliance, Liability Waiver and where not prohibited a Publicity Release ("Declaration"), which must be received by Administrator within seven (7) days of the date notice or attempted notice is sent, in order to claim the prize. If any potential winner cannot be contacted, fails to sign and return the Declaration (as applicable) or fails to provide any requested information within the required time period, potential winner forfeits the prize.

The awarding of prize money may be subject to the laws and regulations of the participant's country of residency. In the event that the participant is unable to receive the prize money due to changes in the regulations of their country, the organizing committee will not be held responsible. Participants are solely responsible for ensuring that they are in compliance with all laws and regulations in their country, and the organizing committee reserves the right to disqualify any participant who is found to be in violation of these laws and regulations.

If you are confirmed as a winner of this contest, the following rules apply:

  • You may not exchange your prize to any other merchandise or services. However, if for any reason an advertised prize is unavailable, we reserve the right to substitute a prize of equal or greater value;
  • You may not designate someone else as the winner. If you are unable or unwilling to accept your prize, we may award it to a runner up;
  • You will be solely responsible for all applicable federal, state, and local taxes related to accepting the prize, if you choose to accept the prize;
  • If a prize is awarded to a project submitted by a team, the designated representative will be the sole recipient of said prize, unless otherwise agreed upon in writing by the representative and his/her team.

What if something unexpected happens and the contest can not run as planned?
In the event of cheating, a virus, bug, bot, a catastrophic occurrence, or any other unforeseen circumstances that affects the fairness and integrity of this contest, the organizers reserve the right to cancel, modify, or suspend it. This applies regardless of whether the event is due to human error or technical issues. If a resolution cannot be found, the organizers reserve the right to choose winners from all eligible entries received before the cancellation, modification, or suspension of the contest.

If we have evidence or strong suspicion that you have tampered with the integrity or fair operation of the contest through cheating, hacking, creating a bot or other automated program, or fraudulent means, the organizers may pursue legal action against you to the fullest extent allowed by law. Furthermore, you may be disqualified and banned from participating in any future contests organized by us.

Who do I contact about this contest?
If you have any questions or comments regarding this contest, please email us at contest@wiznet.io.