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. Walter is the only module that packs all of these connectivity options into such a small package.

Since publishing our pre-launch page, we’ve been hard at work perfecting both our design and our manufacturing plan. Along with beta testers from all over the world, we’ve been busy monitoring and evaluating Walter’s performance in various applications. We’d love for you to have a look at our project page and join us in the exciting world of cellular IoT by backing the Walter campaign!