Walter

A certified ESP32-S3 module with LTE-M, NB-IoT, and GNSS for prototyping and production

Limited items in stock

View Purchasing Options
Sep 05, 2024

Shipping News, Documentation Updates, and Field Reports

Get caught up with the all the latest from the Walter Team. Read the full update.


Aug 28, 2024

Ready for Shipping to You

We are thrilled to announce that Walter has officially arrived at the Mouser warehouse! After a year and a half of development, testing, and your incredible support, Walter is now ready to make its way to you. Read the full update.


Aug 19, 2024

Final Testing, Updated Demo Platform, and Embedded World

After lots of hard work and dedication from our team, we are now in the final stages to send out the modules to you, our backers. In this update we also show you our updated demo platform, and announce our upcoming participation at Embedded World North America. Read the full update.


Jun 05, 2024

Progress, Certifications, and Milestones

Find out what we've been up to since the campaign concluded, plus a bonus video! Read the full update.


May 02, 2024

Final Day of Crowdfunding, Upcoming Price Increase, Our Feature on Olivier Bloch's IoT Show, and Software-Related Next Steps

We are now into the final hours of our Crowd Supply campaign! This is your last chance to order Walter at the discounted campaign price of $70 USD. This update includes a video of Olivier Bloch featuring Walter on his IoT Show and a quick breakdown of our software-related next steps. Read the full update.


Apr 30, 2024

Walter's on YouTube and Production Progress

Check out Walter on YouTube and learn the latest on our production progress. Read the full update.


Apr 24, 2024

IoT SIM Cards Now Available to Anyone!

As we mentioned in our previous update, we've been working hard to provide a satisfying answer to the most common question asked by potential backers: "How can I get my hands on an IoT SIM card?" Our team has been collaboratingy with Soracom, a provider with excellent LTE-M and NB-IoT coverage, and we're excited to announce the launch of a new SIM-card web shop where anybody can order a Soracom SIM card. We believe this is a vital step toward the future of cellular IoT for individuals and small businesses. This update also covers our ongoing work to support the Zephyr RTOS, our recent appearance on The IoT Show with Olivier Bloch, and our upcoming appearance at the Advanced Engineering Trade Show in Antwerp. Read the full update.


Apr 10, 2024

Certification & SIM Cards

All the latest from the Walter project, including successful certification testing, our participation at Embedded World 2024, and Soracom SIM cards for individuals Read the full update.


Apr 04, 2024

Cellular IoT Insights

The first week of our campaign is over, and what a week it has been. We want to thank you all for your support. We reached our funding goal in less than 24 hours! Walter is now funded, which further strengthens our believe in the power of cellular IoT. Read the full update.


Mar 23, 2024

Our Crowdfunding Campaign Is Live!

Walter is a small-form-factor IoT system-on-module (SoM) that combines a powerful ESP32-S3 system-on-chip (SoC) with a second-generation Sequans GM02SP LTE-M/NB-IoT 5G modem and GNSS receiver. Its ESP32-S3 provides many built-in peripherals as well, including UART, SPI, I²C, CAN, Wi-Fi b/g/n, and Bluetooth 5. Come have a look! Read the full update.

Subscribe to the Crowd Supply newsletter, highlighting the latest creators and projects