[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8},"actionData","errors","root",{"_28":-5,"_38":-5,"_39":40,"_41":42,"_43":44,"_45":46,"_47":48,"_49":50,"_51":52,"_53":54,"_55":56,"_57":58},"routes/_store+/_readers+/email_author.$slug/route",{"_9":10,"_11":-5},"book",{"_12":13,"_14":15,"_16":17,"_18":19,"_20":21,"_22":23},"currentUser","id","Z2lkOi8vbGVhbnB1Yi9TdG9yZTo6Qm9va1Byb2R1Y3QvODAyMTM","title","Bare-Metal Rust on the nRF52840","state","published","contactAuthorMethod","email","aboutText","

**Bare-Metal Rust on the nRF52840** is a 10-day hands-on guide for embedded

engineers who want to understand what their microcontroller is actually doing —

without an RTOS in the way.

Each day introduces one concept, one working example, and four practice tasks.

You start by flashing a minimal program that does nothing (proving the toolchain

works), and finish by writing a multi-task concurrent application using Rust's

RTIC framework — with compile-time proof that there are no data races.

**What you will build:**

- A PAC-level LED blinker using direct register writes

- Type-safe GPIO with the nrf52840-hal's type-state pattern

- Accurate millisecond delays with the SysTick timer and HFXO crystal

- RTT logging with defmt — zero-allocation, zero-UART, streams through the

debug probe

- Hardware interrupts via the GPIOTE peripheral, using Rust's ownership model

to share state safely between main and the ISR

- A UART echo server over the DK's J-Link OB virtual COM port

- Independent hardware timers driving multiple LEDs at different frequencies

- A full RTIC application with hardware tasks, local resources, and shared

state protected by the priority-ceiling protocol

**Who this is for:**

- Embedded C engineers who want to evaluate Rust for their next project

- Rust developers who have never written firmware before

- Anyone who has used Zephyr or FreeRTOS and wants to understand what is

underneath the scheduler

**What you need:**

- A Nordic nRF52840 DK (~$40 USD) and a USB cable

- A Linux, macOS, or Windows PC

- Basic Rust familiarity (ownership, borrowing, structs) — no embedded

experience required

**Hardware:** Nordic nRF52840 DK (`nrf52840dk/nrf52840`)

**Toolchain:** Rust stable, probe-rs, nrf52840-hal 0.16, RTIC 1.1

","authors",[24],{"_12":25,"_26":27,"_28":29},"Z2lkOi8vbGVhbnB1Yi9TdG9yZTo6UHJvZHVjdEF1dGhvci84NTc3NQ","name","Jovin Basil","user",{"_30":31},"avatar",{"_32":33,"_34":35,"_36":37},"url","https://secure.gravatar.com/avatar/e126eb64b23687efadd96c1372c7de9a?r=pg&d=mm","styleName","medium","exists",true,"shoppingCartId","shoppingCart",{"_12":71,"_72":73,"_74":37,"_75":76,"_77":78,"_79":80,"_81":37},"locale","en","readerTheme","light","constants",{"_69":70},"publishers",{"_65":66,"_67":68},"learnerOrganizations",[],"needsLocaleCookieSync",false,"announcements",{"_59":60,"_61":-5},"sentryEnvironment","production","sentryRelease","f5548b0fa7c03e0c3ddcc40793859fac31237ca7","announcement_store",{"_62":52,"_63":64},"announcement_authors","flag","text","

Kick off your book project, get started with GhostAI, get better at marketing, or spend the day doing all three! Free live workshops on Zoom. Saturday, June 27, 2026.

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