It's clear that almost any business and developer will benefit from IoT. Walter allows you to build your next connected thing in a breeze. Given that the module will be CE and FCC certified your product certification costs will be reduced to a minimum.

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Open Source

The Walter module schematics will be released under the GPLv3 license.

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CE and FCC certified

The Walter module will be CE and FCC certified to shorten your time to market.

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Ultimate flexibility

All I/O pins are available without limitations which gives you ultimate layout flexibility.

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Multiple Languages

Program the module with the Arduino IDE, Micropython, JavaScript or the Espressif IDF.

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Talks WiFi/BLE/5G/GPS

Walter's ESP32-S3 offers WiFi and BLE, the Sequans modem has NB-IoT, LTE-M and GPS.

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Designed and built in EU

The module is designed and produced in the European Union to offer long term availability.

Small form factor and flexible IO pins

Although Walter has a powerful processor and many wireless technologies aboard, the module has a very small form factor of only 55mm x 24.8mm.

The ESP32-S3 microcontroller allows any peripheral to be routed to any IO pin. On top of that no exposed IO pins are strapping pins, this means you have the freedom to layout your Walter based board as you wish.

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Good hardware needs good software

  • You can start programming fast prototypes because the ESP32-S3 has an Arduino core. We are currently working on a custom and open source NB-IoT, LTE-M and GPS library for Walter's Arduino environment.
  • MicroPython is gaining traction and is getting mature. We are dedicated of supporting MicroPython on Walter by actively contributing to the generic ESP32 MicroPython project.
  • Some projects require tight hardware control, the ESP-IDF toolchain gives you exactly that. Given that Walter's schematics are open source, you are in the driver's seat.
  • When there is sufficient interest we are willing to investigate in getting JavaScript support with Espruino.

Built for low power

The board uses an ultra high efficiency DC-DC converter for optimal power performance.

Besides the various low power and deep sleep modes of both the ESP32-S3 processor and GM02SP modem, Walter has a mosFET switched and software controllable peripheral power pin. This allows you to completely remove power to attached devices, such as sensors, when you don't need them.

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24

GPIO pins

4

Wireless technologies

1

GPS receiver

4

Supported toolchains

2

CPU cores

Preliminary prices

As certification and production is pending the prices are still subject to change. Please contact use for volume pricing.

BARE
49.95
excl. VAT

The bare module packaged in an antistatic bag

  • Walter module
  • Community support
CONNECTED
69.95
excl. VAT

The module together with certified antenna's

  • Walter module
  • LTE Antenna
  • GPS Antenna
  • Community support
DEVELOPER
250
excl. VAT

Rocket launch your product design with the Walter devkit

  • Walter module
  • LTE Antenna
  • GPS Antenna
  • USB-C cable
  • 100Mb prepaid SIM card
  • 30 min engineering support
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We are curious to see what you will build with Walter and discover the wide range of possibilities. Subscribe on the newsletter to get notified on the latest developments.

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