--- title: "Connect W5100S-EVB-Pico to AWS IoT Core" url: "https://maker.wiznet.io/WIZnet/projects/connect-w5100s-evb-pico-to-aws-iot-core/" markdown_url: "https://maker.wiznet.io/WIZnet/projects/connect-w5100s-evb-pico-to-aws-iot-core/md" type: "UCC: User Created Content" author: "mason" author_url: "https://www.hackster.io/viktor-shin/connect-w5100s-evb-pico-to-aws-iot-core-4ac135" editor: "WIZnet" editor_url: "https://maker.wiznet.io/" original_author: "mason" original_url: "https://www.hackster.io/viktor-shin/connect-w5100s-evb-pico-to-aws-iot-core-4ac135" published: "2023-02-07" language: "en" hardware: ["WIZnet W5100S-EVB-Pico"] likes: 1 views: 459 comments: 0 source: "WIZnet Makers (https://maker.wiznet.io/)" --- # Connect W5100S-EVB-Pico to AWS IoT Core > W5100S-EVB-Pico is first RP2040-based AWS Qualified board. This project will demonstrate how to connect to AWS IoT Core and transmit data. Original author: mason (source: https://www.hackster.io/viktor-shin/connect-w5100s-evb-pico-to-aws-iot-core-4ac135) ## Components - **WIZnet W5100S-EVB-Pico** x 1 ([docs](https://docs.wiznet.io/Product/Chip/Ethernet/W5100S/w5100s-evb-pico)) ## Article Hello, I’m going to introduce how to connect W5100S-EVB-Pico to AWS IoT Cloud and transmit data. For your reference, WIZnet has a separate docs website, First and foremost, you need an AWS account (sign up if you do not have one, and AWS offers $100 worth credit for first sign ups that will be more than enough for testing purposes). Once logged in, go to IoT Core Service and create a thing. ![AWS IoT Core Home](https://hackster.imgix.net/uploads/attachments/1390932/image_s7LV7CIxDK.png?auto=compress%2Cformat&w=1280&h=960&fit=max) AWS IoT Core Home ![Create a single thing](https://hackster.imgix.net/uploads/attachments/1390934/image_lkPzRDYt5S.png?auto=compress%2Cformat&w=1280&h=960&fit=max) Create a single thing *![Enter thing name and DO NOT create shadow](https://hackster.imgix.net/uploads/attachments/1390935/image_IG6x0jlLEu.png?auto=compress%2Cformat&w=740&h=555&fit=max)* **Enter thing name and DO NOT create shadow.** *![Auto-generate new certificates](https://hackster.imgix.net/uploads/attachments/1390936/image_l9aV8GpHqc.png?auto=compress%2Cformat&w=1280&h=960&fit=max)* **Auto-generate new certificates** ![](https://hackster.imgix.net/uploads/attachments/1391190/image_JUI8cbJv0G.png?auto=compress%2Cformat&w=740&h=555&fit=max) Attach a policy (you must create one if you haven’t created one). In my case, I allowed all for testing purposes; please create your policy corresponding to your needs. For more information about policies please refer to: ![](https://hackster.imgix.net/uploads/attachments/1390939/image_7alxhPUZIx.png?auto=compress%2Cformat&w=740&h=555&fit=max) Download 4 certificates from the pop-up window. FYI, public key won’t be used. Please keep in mind that you won’t be able to download these keys later, so copy them to a safe place. Also, for security reasons it is recommended to delete these keys after adding them to the firmware. One a ‘thing’ is created in AWS IoT Core, let’s move on to the next step – Firmware. A sample firmware can be downloaded or cloned from the following Github link: Please clone, update submodule and patch. Copy the downloaded keys into…RP2040-HAT-AWS-CexamplesAWS_IoT_MQTTmqtt_certificate.h. RSA 2048bit key: Amazone Root CA 1 -> mqtt_root_ca Device certificate -> mqtt_client_cert Private keyfile -> mqtt_private_key ![](https://hackster.imgix.net/uploads/attachments/1390941/image_w6209plbMS.png?auto=compress%2Cformat&w=740&h=555&fit=max) Next, it is necessary to input domain, publish & subscribe topic, Client ID. This information shall be added to define variables in..RP2040-HAT-AWS-CexamplesAWS_IoT_MQTTAWS_IoT_MQTT.c Thing name shall be used as Client ID. For testing purposes I used shadow/update, shadow/update/accepted as Topics. ![](https://hackster.imgix.net/uploads/attachments/1390944/image_caap7OTO6f.png?auto=compress%2Cformat&w=740&h=555&fit=max) You should be able to see the following log in the serial terminal. ![](https://hackster.imgix.net/uploads/attachments/1390946/image_XuYa0wpopf.png?auto=compress%2Cformat&w=740&h=555&fit=max) After obtaining IP address from DHCP, the device will connect to the domain through DNS and publish data. You can check the Transmitted data via MQTT Test client. ![](https://hackster.imgix.net/uploads/attachments/1390947/image_opliPZuJY7.png?auto=compress%2Cformat&w=740&h=555&fit=max) Vice versa, you can also check the published data from the ‘MQTT test client to subscribed topic. ![](https://hackster.imgix.net/uploads/attachments/1390948/image_DgFLh9TXm1.png?auto=compress%2Cformat&w=740&h=555&fit=max) Congratulations! Now, your device is successfully connected to AWS IoT Core --- Source: https://maker.wiznet.io/WIZnet/projects/connect-w5100s-evb-pico-to-aws-iot-core/