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Walter - LTE-M/NB-IOT Development Module

Rating:

100% of 100

SKU: CE10231 Brand: DPTechnics Guides (1)

A fully certified and connectivity-enabled development board that will take projects from the prototyping to the production phase.

$120.85 AUD, inc GST

$109.86 AUD, exc GST

In stock, ships same business day if ordered before 2PM
Fastest delivery: Tomorrow* Disclaimer:
For next-day delivery, the shipping address must be in the AusPost next-day network, eParcel Express must be selected, and the order must be placed before 2PM AEST Mon-Thurs excluding NSW Public Holidays. Orders may be delayed due to AusPost pickup timings and order verifications. eParcel Express is typically a 1-day service within the AusPost next-day network, though it is sometimes 2+ days.

Quantity Discounts:

5+ $106.56 (exc GST)
10+ $104.37 (exc GST)

Recommended Essentials:

Walter Feels - Carrier board for Walter

$217.94

Walter is a compact IoT system-on-module (SoM) that integrates the power of the industry-respected ESP32-S3 microcontroller with a state-of-the-art Sequans GM02SP LTE-M/NB-IoT 5G modem and GNSS receiver.

Designed to deliver versatile wireless connectivity, the Walter supports Wi-Fi b/g/n, Bluetooth 5, and cellular communication in a tiny 24.8 x 55 mm footprint- ideal for any IoT project like, sensing, tracking, and control applications, where space and power efficiency matter.

Technical Specifications

Microcontroller: ESP32-S3-WROOM-1-N16R2, dual-core 32-bit LX7 CPU, with 16 MiB quad SPI flash, 2 MiB quad SPI PSRAM
Wireless Connectivity:
- Wi-Fi 802.11 b/g/n (150 Mbps) with onboard PCB antenna
- Bluetooth 5 Low Energy (2 Mbps) with onboard PCB antenna
- Sequans GM02SP modem:
  - Dual-mode LTE-M / NB-IoT (NB1, NB2), compliant with 3GPP LTE Release 14 - antenna required
  - GNSS receiver supporting GPS and Galileo constellations with LNA + SAW filter - passive U.FL antenna required (Officially supported antenna coming soon)
Interfaces and I/O: 24 GPIO pins; UART, SPI, I²C, CAN, I²S, SD available on any GPIO; ADC, DAC, PWM integrated; USB Type-C for programming and debugging; reset button
Power Supply: 5.0 V via USB Type-C; 3.0–5.5 V via Vin pin (not to be used simultaneously); ultra-low quiescent current design
Power Consumption: Deep sleep current 9.8 µA total (8 µA ESP32-S3, 1 µA GM02SP, 0.8 µA DC-DC & LDO)
Size and Form Factor: 24.8 x 55 mm, 2.54 mm pin headers, breadboard friendly, pin- and footprint-compatible with former PyCom GPy module
Certifications: CE, UKCA, FCC, IC, RCM
Industrial temperature range: -40°C to +85°C
Software Ecosystem: Supported by ESP-IDF, Arduino, MicroPython, Toit; open-source libraries with transparent protocol offloading, robust error handling, and low-power optimisations

Compatibility

Use the Walter Feels carrier board to break out industry-standard protocols, and all of the features needed to accelerate development and deployment
Develop on a breadboard using traditional methods
Drop-in replacement for the former Pycom GPy

Pinout Diagram

Walter Feels pinout diagram

Additional Resources

What’s Included

Walter system-on-module with ESP32-S3 and Sequans GM02SP modem

This product is listed in:

Wireless>Cellular>Boards & Kits

Product Comments

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Exact shipping can be calculated on the view cart page (no login required).

Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).

We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

$3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
$7+ for Standard Post (typically 6+ business days, tracked)
$11+ for Express Post (typically 2+ business days, tracked)
Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.

Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

International Orders - the following rates are for New Zealand and will vary for other countries:

$12+ for Pack and Track (3+ days, tracked)
$16+ for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount will increase based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

40 Aruma Place
Cardiff
NSW, 2285
Australia

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

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