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DPTechnics Walter Connectivity Module

Open-source cellular, GPS, and WiFi/BLE module

Core Components
:
No items found.
Connect this hardware to Blynk in no time
Use a ready-made blueprint project, or a firmware example to build your own functionality.
Channels
:
Connectivity
:
Cellular
WiFi
BLE
Applications
:
Smart Buildings
Healthcare
Smart Factory
Facility Management
Home Automation
Logistics and Supply Chain Management
Asset Tracking
Agriculture
Cold Chain Logistics
Environmental Monitoring
Waste Management

About Product

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.

We have certified Walter for FCC, CE, UKCA, IC, and RCM (for Australia and New-Zealand). Unless you add another radio to your Walter-based product, your certification costs and risks will be minimal.

Product details

Core Components:
No items found.
Accessories:
CPU:
Channels:
Memory:
Connectivity:
Cellular
WiFi
BLE
Programming Language:
Supported Blynk Tech:
No items found.
Applications:
Smart Buildings
Healthcare
Smart Factory
Facility Management
Home Automation
Logistics and Supply Chain Management
Asset Tracking
Agriculture
Cold Chain Logistics
Environmental Monitoring
Waste Management

Technical Specifications:

  • CPU: Xtensa Dual-core 32-bit LX7 CPU (ESP32-S3 SoC)
  • RAM: 2MB (Quad SPI) PSRAM
  • Flash: 16MB (Quad SPI) Flash memory
  • WiFi: 150Mbps(n) 802.11 WiFi b/g/n with on-board antenna
  • LTE: CAT M1/NB1/NB2 (GM02SP module)
  • GPS: GPS, GNSS Constellation support (GM02SP module)
  • Bluetooth: 2Mbps Bluetooth 5 (LE), Bluetooth Mesh
  • GPIO: 24 physical GPIO pins
  • Ultra Low Deep Sleep Current: 9.8µA
  • Software Support: Open source support for ESP-IDF, Arduino, Micropython, and Toit
  • Certifications: CE, FCC, IC, UKCA, New Zealand, and Australia
  • Integration: Solderless integration into any project due to the 2.54mm pin headers