Helium Digital
Extension Board


The Digital Extension Board connects to the Helium Atom Development Board to prototype connected products using readily available digital sensors.

When combined with HeOS, Helium’s connected IoT runtime, the Digital Extension Board enhances sensors with local computing resources, security, battery management, programmability, and upgradeability.

*Requires a Helium Development Board for full functionality.

$19 Preorder

System Features

  • Power, ground, and analog connector for standard digital sensors
  • Zero-configuration on-boarding; automatic connection to nearest Helium Element access point when attached to Helium Atom Development Board
  • Long range dual-band wireless connectivity, switches between 2.4Ghz and sub-Ghz as required in noisy environments

Tech Specs

Networking standards IEEE 802.15.4
Frequency Band 915 MHz & 2.4Ghz (North America)
868 MHz & 2.4Ghz (EU)
Security Hardware-based encryption, authentication and authorization with Helium Atom Development Board


Access to
Helium Cloud

  • Helium Atom-based development boards: Up to 2 boards: Free. 3+ boards: $4 per month
  • Helium Element Access Point (Ethernet): 1 Element: Free. 2+ Elements: $10 per month
  • Helium Element Access Point (Cellular, Wifi, Ethernet): $40 per month
  • Secure network access
  • Unlimited cloud storage
  • Support for hardware and software
  • Security patches
  • Firmware updates