nRF52840
Definition
Section titled “Definition”Nordic Semiconductor ARM Cortex-M4F microcontroller and wireless system-on-chip.
Crux usage
Section titled “Crux usage”Processing device inside the RAK4631WisBlock Core module combining a Nordic nRF52840 microcontroller and an SX1262 LoRa radio.Crux usage: The module used as a MeshCore USB Companion in the Atlas Bridge recovery campaign.Open full definition, accessed during recovery using SWDSerial Wire Debug, an ARM debugging and programming interface using SWDIO, SWCLK and a common electrical reference.Crux usage: Provides a lower-level diagnostic path to the RAK4631 processor when ordinary USB access is unavailable.Open full definition.
Context
Section titled “Context”It is distinct from the SX1262Semtech LoRa transceiver IC for sub-GHz radio communications.Crux usage: Provides the RAK4631’s LoRa radio path in CRUX MeshCore nodes.Open full definition radio transceiver integrated on the same module.
Aliases
Section titled “Aliases”nRF52840Nordic Semiconductor ARM Cortex-M4F microcontroller and wireless system-on-chip.Crux usage: Processing device inside the RAK4631, accessed during recovery using SWD.Open full definition
Related terms
Section titled “Related terms”This entry is governed through the AtlasCrux’s governed operational intelligence system for interpreting system state, coordinating workflows, and presenting actions or decisions.Crux usage: Atlas connects engineering records, sensor data, communications, automation, evidence, and publishing. Material changes remain subject to validation rules and human approval.Open full definition Engineering System.