LoRa based SODAQ Board

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With high-end communication modules, robust power options, security and processing power, this ExpLoRer can play a crucial aspect of your next IoT project.

Combining a BLE (RN4871) 4.2 module alongside a LoRa (RN2483A) chip will provide a seamless experience that offers effective communication between a wide range of devices. The well-known LoRa® technology has provided solutions in a multitude of domains – from air pollution monitoring to item location and even smart parking, this technology can be used to its fullest potential when equipped with an effective board such as the SODAQ ExpLoRer.

Alongside the communication features, the board additionally can be powered through an on-board solar charge controller – just connect a solar panel, and you’re ready to go! Solar power, not your thing? No problem, the board additionally supports LiPo batteries and USB power.

Security is essential and is required in almost every project that involves sending and receiving data. To secure your projects, the ExpLoRer board has a built-in ATECC508A crypto chip. This ensures your projects will be able to support the latest developments and their required high-end security protocols. This technology is able to protect your confidentiality and data integrity through their “ultra-secure hardware-based cryptographic key storage.”

Lastly, size can be the determining factor in your projects. With a small form factor of 93 x 55 mm (matchbox-sized), this device is certainly not getting in the way. Although relatively small, it packs a punch and will fit right into your setup as a powerful tool with a small form factor.

# Developement Kit
# End Device
# EU 863-870
# US 902-928


Technical details


  • Atmel SAMD21, 32 bits Arm Cortex M0 microcontroller
  • Microchip: RN2483A / RN2903
  • Microchip RN4871 Bluetooth 4.2 module (BLE) with ceramic antenna
  • Atmel ATECC508A1 crypto chip to securely store your LoRa keys.
  • Atmel SST25PF040C serial flash chip (4Mbit)
  • MCP 73831 Charge controller and on-board rechargeable coin cell battery
  • embedded (PCB) LoRa antenna
  • MCP97001 temperature sensor
  • Micro USB Connector


  • Microcontroller: ATSAMD21J18, 32-Bit ARM Cortex M0+
  • Compatibility: Arduino M0 Compatible
  • Size: 93 x 55 mm
  • Operating Voltage: 3.3V
  • I/O Pins: 20
  • Analog Output Pin: 10-bit DAC
  • External Interrupts: Available on all pins
  • DC Current per I/O pin: 7 mA
  • Flash Memory: 256 KB and 4MB (external flash)
  • SRAM: 32KB
  • EEPROM: Up to 16KB by emulation
  • Clock Speed: 48 MHz
  • Power: 5V USB power and/or 3.7 LiPo battery
  • Charging: Solar charge controller, up to 500mA charge current
  • LED: RGB LED, Blue LED
  • LoRa Microchip: RN2483A / RN2903 Module
  • Bluetooth Microchip: RN4871 Module
  • Cyptochip : ATECC508A
  • Temperature sensor: MCP9700AT
  • USB: MicroUSB Port
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