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Overview

Cubicore Devboard

Cubicore Devboard overview

The Cubicore Devboard is a professional-grade multi-protocol IoT development platform. It combines LoRaWAN, Wi-Fi, and Bluetooth Low Energy on a single hardware target — ideal for prototyping and field-ready deployments.

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Cubicore Devboard, assembled front and back view
What it is

A multi-protocol development platform

One board for LoRaWAN, Wi-Fi, and BLE development.

The Cubicore Devboard is built around an Espressif ESP32-S3 MCU paired with a Semtech SX1262 LoRa transceiver on a RAK3112 module. It provides USB-C power and data, onboard Li-Po charging, and Grove-compatible I2C expansion — everything you need to move from bench prototype to field deployment.

  • LoRaWAN — long-range, low-power connectivity via the SX1262.
  • Wi-Fi — high-bandwidth provisioning and data paths.
  • Bluetooth Low Energy — quick, low-power device setup.
  • USB-C — power and the primary UART path for AT commands and firmware updates.
  • Battery operation — onboard TP4054 Li-Po charging for untethered use.
  • I2C expansion — Grove-compatible headers for plug-and-play sensors and peripherals.
  • Baseplate & Antenna Locker Plate — factory-installed mounting base with RF micro-coaxial strain relief and flexible RST/BOOT button covers.
Start here

Choose a path

Work through the series in order, or jump to the topic you need.

Cubicore Devboard top view showing headers, module, connectors, and buttons
Getting Started

Getting Started

Package contents, hardware verification, and first boot checks.

Start here
USB-C connector, BOOT button, and RST button on the Cubicore Devboard
Firmware

Flashing Firmware (Arduino IDE)

Arduino toolchain setup, COM port enumeration, and flashing the first diagnostic sketch.

Flash firmware
The I2C connector (JST) on the Cubicore Devboard, labeled SCL/SDA/+/−
Peripherals

Peripherals and I2C

Plug-and-play sensor integration, address scanning, and telemetry formatting.

Add peripherals
2.4 GHz antenna connected to RAK3112 WiFi/BLE connector
Connectivity

Wi-Fi and BLE

2.4 GHz antenna setup, site survey diagnostics, NTP clock sync, and BLE UART terminal.

Connect
An MHF4 antenna cable connected to the LoRa connector on the RAK3112 module
LoRaWAN

Joining a LoRaWAN Network

Semtech SX1262 LoRa configuration, OTAA join keys, and uplink telemetry.

Join a network
Assembled Cubicore Devboard with Sub-GHz antenna in case
LoRa P2P

LoRa P2P

Direct Devboard-to-Devboard RF communication without network servers.

P2P messaging
Charge-set resistor R2 on the PROG pin of the TP4054 charger on the Cubicore Devboard
Power

Power and Battery Optimization

USB-C power, Li-Po charging, solar input, and deep sleep current optimization.

Manage power
Reference
  • Cubicore Devboard — product documentation, specifications, and pinout
  • Products — browse the full Cubicore hardware catalog
  • Downloads — firmware, datasheets, and drivers