CATEGORY

No standard library 11,888 crates

Data as of 2026-07-25 (crates.io database dump, timestamp 2026-07-25T02:00:36Z). Source: crates.io · db-dump.tar.gz · methodology & corrections.

hisi-rf-rtos-driverRuntime-neutral task and synchronization contract for HiSilicon radio firmware1,250MIT Embedded development No standard library uor-addrUOR-ADDR — the typed reference vocabulary for content-addressing across recursively-grammared formats. Standard-library Layer-3…1,250Apache-2.0 Cryptography Data structures preallocBuild time heap-like memory preallocation.1,249MIT OR Apache-2.0 Development tools No standard library const_cge_activationsShared activation function implementations for const_cge1,247MIT Computer vision Embedded development discrimin-antA tiny crate to make working with discriminants easier.1,247MIT OR Apache-2.0 Encoding No standard library lesbar-textString extensions and queries for legible text.1,245MIT Data structures No standard library nonnull-mutNonNull<T>, but T is invariant like *mut T1,245MIT No standard library No standard library::No dynamic allocation numbat-wasm-module-dcdtNumbat WebAssembly smart contract module for using a single DCDT1,244GPL-3.0-only Cryptography::Cryptocurrencies No standard library rgbledrgbled is a driver for controlling RGB LEDs using PWM, with built-in gamma correction1,244MIT Embedded development Hardware support mspm0l222x-pacA Peripheral Access Crate for the Texas Instruments MSPM0L222X microcontroller family1,242MIT OR Apache-2.0 Embedded development No standard library max145784-driverAn embedded async driver for the MAX14578E/MAX14578AE USB charger detector.1,241Apache-2.0 Asynchronous Embedded development rpmiRISC-V Platform Management Interface (RPMI) constants and runtime library1,241MulanPSL-2.0 OR MIT Embedded development Hardware support serde_field_resultField-level Serde recovery for schema-drift-tolerant API clients1,241MIT OR Apache-2.0 Encoding No standard library py32f002a-pacPeripheral access crate for PY32F002Ax (generated by svd2rust)1,240MIT/Apache-2.0 Embedded development Hardware support kovan-queueHigh-performance queue primitives and disruptor implementation for Kovan.1,240Apache-2.0 Concurrency Data structures mt6816Driver for MT6816 SPI Magnetic Encoder / Angle sensor1,237MIT OR Apache-2.0 Embedded development No standard library edrv-ssd1327Driver for SSD1327, maintained by the embedded-drivers team1,237MIT/Apache-2.0 Embedded development Hardware support byteorder-core2Personal fork based on byteorder PR 184 that adds some core2 support to byteorder1,236Unlicense OR MIT Encoding No standard library fcrcFast-CRC is a generic CRC implementation using SIMD instructions when available and a fallback when not.1,235MIT OR Apache-2.0 Algorithms No standard library unwrap-overflow-opsarithmetic operations that always panic on overflow1,234Apache-2.0 OR MIT Mathematics No standard library xs_ed25519-dalekFast and efficient ed25519 EdDSA key generations, signing, and verification in pure Rust.1,233BSD-3-Clause Cryptography No standard library open-modulesPayments tokens management contract module. This module is used to add/remove tokens that are accepted as payment for the…1,231GPL-3.0-only Cryptography::Cryptocurrencies No standard library w7500xPeripheral access API for Wiznet's W7500x microcontrollers1,231MIT Embedded development Hardware support zynq7000Peripheral Access Crate (PAC) for the Zynq7000 family of SoCs1,230MIT OR Apache-2.0 Embedded development Hardware support crc-correctionCRC Correction1,229MIT OR Apache-2.0 Algorithms No standard library infinitedsp-coreA modular audio DSP library for synthesis and effects.1,228MIT Embedded development Multimedia::Audio sensirion-i2c-rsCommon functionality for I2C based sensors from Sensirion1,227BSD-3-Clause Embedded development Hardware support embassy_buddyA board support crate for the Prusa Buddy Board.1,226MIT Embedded development No standard library ranchRanged integer types and math1,226Apache-2.0 OR BSL-1.0 OR MIT Mathematics No standard library rust-blind-rsa-signaturesRSA blind signatures in pure Rust1,225MIT Cryptography No standard library ockam_signature_blsThe Ockam BLS signature impementation.1,225Apache-2.0 Algorithms Asynchronous pimoroni_gfx_pack_buttonDriver for LCD GFX PACK buttons by Pimoroni1,225MIT Embedded development Hardware support unixconn-rustClient for library unixconn1,223MIT OR Apache-2.0 External FFI bindings No standard library vec-arrayEmbedded scripting for Rust1,223MIT OR Apache-2.0 Data structures Embedded development ockam_signature_coreSignature core types of the Ockam library.1,223Apache-2.0 Algorithms Asynchronous retrievalAllows the retrieval of trait implementations.1,222MIT OR Apache-2.0 No standard library No standard library::No dynamic allocation vescA no-std/no-alloc implementation of the VESC® firmware communication protocol.1,221MIT Automotive Embedded development nanomachineMinimal State Machines1,219MIT No standard library Simulation spacesuitEmbedded license information.1,218MIT OR Apache-2.0 No standard library embedded-audio-driverEmbedded Audio1,216Apache-2.0 Embedded development Hardware support castingCastFrom and CastInto traits for generic numeric casting1,215MIT No standard library Rust patterns edrv-hmc5883lDriver for HMC5883L, maintained by the embedded-drivers team1,213MIT/Apache-2.0 Embedded development Hardware support krnlstringSafe Rust abstractions for handling Windows Unicode strings (`UNICODE_STRING`) in `#![no_std]` environments.1,212MIT No standard library Operating systems provideTruly zero cost dependency injection1,212MIT OR Apache-2.0 Algorithms Data structures scalarsMinimal numeric traits: Zero, One, Inv, Sqrt, Exp, Logarithm, Trigonometry, Real, Integer1,212MIT OR Apache-2.0 Mathematics No standard library kobe-evmEthereum HD wallet derivation for Kobe1,211MIT OR Apache-2.0 Cryptography No standard library raw-bufferGeneric low-level raw slice types1,211Apache-2.0 OR MIT Data structures Embedded development estimaKalman estimator1,209MIT Embedded development Hardware support common_hal_interfaceA common interface between Rust HALs, for use in the Iron Coder IDE1,209MIT Development tools Embedded development odrive_canA no_std driver for ODrive compatible motor controllers over CAN1,207MIT OR Apache-2.0 Embedded development Hardware support origin-stduioProgram startup and thread support written in Rust1,205Apache-2.0 WITH LLVM-exception OR Apache-2.0 OR MIT No standard library typedidA library to generate and parse TypeIDs.1,204MIT Data structures No standard library axvisorA lightweight type-1 hypervisor based on ArceOS1,204Apache-2.0 Embedded development No standard library arcade_jumpArcade jump trajectory configurator1,202MIT Game engines No standard library anylrProvide `AnyOf<L, R>`, `SomeOf<L, R>`, `Either<L, R>`, and traits.1,199MIT/Apache-2.0 No standard library safe-readPanic-free bounded integer readers over untrusted byte slices — the shared front door for offset/length fields parsed from…1,199Apache-2.0 No standard library Parsing tools edrv-l3g4200dDriver for L3G4200D, maintained by the embedded-drivers team1,198MIT/Apache-2.0 Embedded development Hardware support floatguardA library for checked floating-point arithmetic in Rust, safely elminating NaN and Infinity from floating-point computations.1,195MIT OR Apache-2.0 Mathematics No standard library cortex-m-asyncrtA minimal async runtime for Cortex-M devices.1,195MIT Asynchronous Embedded development serde_with_value_affixCustom affix modules for serde1,195MIT OR Apache-2.0 Encoding No standard library boostRust wrapper for Boost Math1,194BSD-3-Clause AND BSL-1.0 API bindings Mathematics lsmdsoA platform-agnostic driver for the LSM6DSO 6-DoF Accel + Gyro IMU1,192MIT Embedded development Hardware support evian-trackingRobot localization and tracking algorithms in evian.1,191MIT Embedded development Mathematics drtahashA non-cryptographic hash function using AES-NI for high performance1,191MIT OR Apache-2.0 Algorithms Data structures ockam_signature_bbsThe Ockam BLS signature impementation.1,189Apache-2.0 Algorithms Asynchronous sparkfun-openlogA platform-agnostic, embedded-hal driver for the [Sparkfun OpenLogger](https://www.sparkfun.com/products/13712).1,188MIT Embedded development No standard library rtngA real-time operating system capable of full preemption1,187Apache-2.0 Concurrency Embedded development portable-stringStatic-length strings without any allocations.1,186Apache-2.0 OR MPL-2.0 Data structures No standard library factrs-typetagSerde serializable and deserializable trait objects1,186MIT OR Apache-2.0 Encoding No standard library sen66-interfaceAn I2C driver for the SEN66 sensor in Rust.1,184MIT OR Apache-2.0 Embedded development No standard library maplike_deriveDerive macros for maplike.1,184MIT OR Apache-2.0 Data structures GUI hashishA spicy fork of hashbrown. Fast hash maps with vibes. 🌿1,183MIT OR Apache-2.0 Data structures No standard library cvlr-spl-tokenCVLR model for the Solana Token Program 81,182MIT Development tools::Debugging Development tools::Testing edrv-ltr390uvDriver for LTR390UV, maintained by the embedded-drivers team1,182MIT OR Apache-2.0 Embedded development Hardware support rhiz_tag_nostdUbiquitous General Purpose Tag1,182MIT OR Apache-2.0 Command line utilities Date and time ax-driver-baseCommon interfaces for all kinds of device drivers1,181Apache-2.0 Hardware support No standard library ina260-asyncAsynchronous I2C Driver for Adafruit INA260 current and power sensor1,180MIT OR Apache-2.0 Embedded development No standard library zerodds-transportTransport trait + Locator re-export + abstract send/receive interface for RTPS state machines. Pure-Rust no_std + alloc.1,179Apache-2.0 Network programming No standard library ensure_implTrait implementation assertion..1,175MIT OR Apache-2.0 No standard library Rust patterns itoaaaPrint integers to target buffer in decimal format, fast.1,175MIT No standard library No standard library::No dynamic allocation feistelGeneric Feistel Cipher1,175MIT OR Apache-2.0 Algorithms Cryptography hk32-partial-halHK32 partial HAL1,175MIT Embedded development No standard library is25lp128fAsync no_std driver for ISSI IS25LP128F 128 Mbit SPI NOR flash1,174MIT OR Apache-2.0 Embedded development Hardware support ssh-authPure Rust implementation of SSH authentication services.1,173Apache-2.0 OR MIT Cryptography No standard library radicle-ed25519-compactFork of the `ed25519-compact` crate for Radicle1,171MIT Algorithms Cryptography evian-drivetrainDrivetrain models and primitives in evian.1,170MIT Embedded development Mathematics evian-controlControls theory primitives in evian.1,169MIT Embedded development Mathematics hcms-29xxPlatform agnostic driver for HCMS-29XX and HCMS-39XX display ICs1,169MIT OR Apache-2.0 Embedded development No standard library std-moveSimilar to cpp std::move, not very useful1,167MIT No standard library nibblecode_deriveDerive macros for nibblecode1,167MIT Encoding No standard library ngeomGeometry in N dimensions1,165MIT Data structures Graphics schema-catalogTypes for the JSON Schema catalog format (schema-catalog.json)1,165Apache-2.0 Data structures No standard library webgpu_alignWebGPU uniform buffer member layout1,164MIT OR Apache-2.0 No standard library ligerito-reed-solomonReed-Solomon erasure coding for Ligerito over binary fields1,162MIT Cryptography No standard library portal-solutions-id-arenaA simple, id-based arena.1,161MIT/Apache-2.0 Memory management No standard library tg-signal-defsSignal definitions for rCore tutorial OS.1,161GPL-3.0 Embedded development No standard library macos-errnomacOS error numbers1,1590BSD No standard library Operating systems::macOS APIs microstringSmall, niche-able, stack allocated strings1,158Apache-2.0 OR MIT Data structures Memory management buffexBUFFer EXtensions: ring buffer and buffer chaining.1,157MIT/Apache-2.0 Algorithms No standard library node-app-sdk-rustRust SDK for building Node-App native plugins (cdylib) — Lightning-powered marketplace nodes1,157MIT OR Apache-2.0 API bindings Development tools::FFI unicode-simdSIMD-accelerated Unicode validation and transcoding1,156MIT Algorithms Encoding ax-fs-vfsVirtual filesystem interfaces used by ArceOS1,155Apache-2.0 Filesystem No standard library uni_errorA simple, universal error type for Rust1,152MIT OR Apache-2.0 No standard library Rust patterns threadidFast and flexible thread identifiers1,152Apache-2.0 OR MIT Concurrency Development tools::Debugging visit_anyMacro to generate matcher for Any1,151BSL-1.0 No standard library why2025-badge-sysBindings to the built-in functions of the WHY2025 badge1,151AGPL-3.0 Embedded development Graphics lazymutSimilar to LazyCell, but use &mut self to get or initialization1,149MIT No standard library No standard library::No dynamic allocation carbon-curve25519-dalekA pure-Rust implementation of group operations on ristretto255 and Curve255191,148BSD-3-Clause Cryptography No standard library xcoverPure Rust code coverage and PGO support for no_std and embedded programs1,147Apache-2.0 Development tools Embedded development stratum-v1Stratum v1 client. This provides a `#[no_std]` library to implement a Stratum v1 client.1,146GPL-3.0-or-later AND GPL-3.0-only Embedded development No standard library rs-max31865Generic driver for the MAX31865 RTD to Digital converter1,146MIT OR Apache-2.0 Embedded development Hardware support ascon-aead128Implementation of the Ascon-AEAD128 authenticated encryption scheme1,145Apache-2.0 OR MIT Cryptography No standard library unsaferefAn unsafe reference without explicit lifetime1,144MIT No standard library No standard library::No dynamic allocation not-webusbCommunicate between a webpage and a usb device without webusb1,143MIT Embedded development No standard library ligerito-merkleMerkle tree implementation for Ligerito polynomial commitments1,141MIT Cryptography No standard library tg-rcore-tutorial-syncSynchronization primitives for rCore tutorial OS, including mutex, semaphore, and condvar.1,141GPL-3.0 Concurrency Embedded development bearingproA Rust library for solving common maritime navigation tasks.1,138MIT No standard library embedded-rgbaRGBA support for embedded-graphics with fast framebuffers1,138MIT OR Apache-2.0 Embedded development No standard library hk32c030xx-pacHK32C030xx PAC, Generate by Chiptool1,136MIT Embedded development No standard library teaspoonAn allocator for when all you have is a teaspoon of memory1,135BSD-3-Clause Memory management No standard library no_std_tetrisA flexible Tetris implementation for no_std and standard environments1,134MIT Embedded development Games fast-positSoftware implementation of the Posit floating point format1,134LGPL-3.0 Algorithms Mathematics moco-vmThe tiny virtual machine1,133Unlicense No standard library No standard library::No dynamic allocation vdso-rngA Rust wrapper around the Linux vDSO random number generator.1,132MIT OR Apache-2.0 Concurrency Data structures simd-normalizerSIMD-accelerated Unicode normalization (NFC, NFD, NFKC, NFKD)1,132Apache-2.0 No standard library Text processing ligeritoLigerito polynomial commitment scheme over binary extension fields1,132MIT Cryptography No standard library portable-hash-macrosMacros for the portable-hash library1,132MIT OR Apache-2.0 Algorithms No standard library muntosA real-time operating system capable of full preemption1,129Apache-2.0 Concurrency Embedded development wrapping_in_rangeWrapping arithmetic for any range1,125MIT OR Apache-2.0 Algorithms No standard library cve-idTypesafe Common Vulnerabilities and Exposures (CVE) Identifier1,120MIT OR Apache-2.0 No standard library Parser implementations udled-macrosMacros for audiens1,120MIT No standard library Parsing tools nam-wasmer-typesWasmer Common Types1,120MIT OR Apache-2.0 WITH LLVM-exception Data structures No standard library dynodeA utility library for creating node-based structures that can hold dynamically sized values1,119MIT OR Apache-2.0 Data structures No standard library cs4272Rust I2S driver for the CS42721,118MIT Embedded development No standard library booking_kitA powerful and extensible booking toolkit for Rust — featuring core data structures, flexible status logic, and seamless…1,117Apache-2.0 Data structures No standard library mtb_pac_psoc6_02Peripheral Access Crate for Infineon CY8C6xx8 and CY8C6xxA PSOC™ 6 microcontrollers1,115non-standard Embedded development Hardware support iso10383-staticStatic ISO 10383 Market Identifier Code Data1,114Apache-2.0 Finance Localization (L10n) portable-hashPortable, stable hashing traits for Rust.1,114MIT OR Apache-2.0 Algorithms No standard library extend-pinnedExtend but for Pin1,114MIT OR Apache-2.0 Asynchronous No standard library snowvThe SNOW-V stream cipher1,111BSD-3-Clause Cryptography No standard library sensor_lib_as5600A driver for the AS5600 sensor module.1,110BSD-3-Clause Embedded development No standard library dtmf_tonesA zero-heap, no_std, const-first DTMF keypad frequency table with runtime tolerance helpers.1,109MIT Embedded development Multimedia poly-onceA thread-safe cell providing async and sync initialization primitives similar to OnceLock1,109MIT Asynchronous Concurrency alistSmall insertion-ordered association list for keys with cheap equality1,109MIT Data structures No standard library axvm-typesShared base types for AxVM virtualization components1,109Apache-2.0 No standard library Virtualization simd-lookupHigh-performance SIMD utilities for fast table lookups, compression and data processing1,107Apache-2.0 Algorithms Data structures ruvector-ditherDeterministic low-discrepancy dithering for low-bit quantization: golden-ratio and π-digit sequences for blue-noise error shaping1,105MIT OR Apache-2.0 Algorithms No standard library premiumTools for drawing graphics to monochrome displays1,1020BSD OR MIT OR Apache-2.0 Embedded development Graphics iqs7211eAsync I2C driver for the Azoteq IQS7211E capacitive touch and gesture controller1,101MIT OR Apache-2.0 Embedded development No standard library gdep073e01Embedded-graphics driver for the GDEP073E01 7-color e-paper display1,101MIT OR Apache-2.0 Embedded development Graphics ax-fs-ramfsRAM filesystem used by ArceOS1,100Apache-2.0 Filesystem No standard library jit-assemblerA multi-architecture JIT assembler library for runtime code generation1,096MIT Compilers Development tools packbitsTiny, zero-boilerplate bit packing for your own structs: convert to/from fixed-size byte arrays and integer containers with one…1,095Apache-2.0 Data structures Embedded development embedded-stepperHardware agnostic, no_std stepper motor driver based on Arduino stepper using embedded-hal1,095MIT Embedded development No standard library int-intervalA small, no_std half-open interval algebra library for primitive integer types.1,092MIT OR Apache-2.0 Data structures No standard library noalloc-vec-rsA no-allocation vector implementation for environment without memory allocation.1,092Apache-2.0 No standard library zodiacRust OS framework that offers safe interfaces for kernel development1,090Apache-2.0 No standard library atsaml22jPeripheral access API for ATSAML22J microcontrollers (generated by svd2rust)1,090MIT OR Apache-2.0 Embedded development Hardware support rwbtRivieraWaves Bluetooth IP core: RFC command sequencer, register definitions, and calibration table packing1,089Apache-2.0 Embedded development Hardware support address_spaceCrate for working with MIPS address spaces, providing types for managing ROM and VRAM addresses, sizes, and ranges.1,087MIT OR Apache-2.0 No standard library No standard library::No dynamic allocation zerodds-sql-filterOMG DDS 1.4 §B.2.1 ContentFilteredTopic filter-expression parser + evaluator (SQL-92 subset with %N parameters, BETWEEN, LIKE).1,087Apache-2.0 No standard library Parser implementations mik32-rt-macrosMacros re-exported in `mik32-rt`1,084GPL-3.0-only Embedded development Hardware support dma_x86_64Low-level DMA driver for x86_64 systems in no_std environments.1,083MIT OR Apache-2.0 Embedded development Hardware support serial-asyncA library that makes creating asynchronous serial drivers even simpler.1,079MIT Asynchronous Embedded development esb-ngImplementation of Nordic's Enhanced ShockBurst communication protocol1,078MIT OR Apache-2.0 Embedded development No standard library dac_lib_mcp4725A driver for the MCP4725 DAC module.1,078BSD-3-Clause Embedded development No standard library simple-durationA simple, dependency-minimal Duration type for second-precision time handling1,077MIT OR Apache-2.0 Date and time Embedded development zerodds-discoveryDDSI-RTPS discovery for ZeroDDS — SPDP (§8.5.3), SEDP (§8.5.4), TypeLookup service (XTypes 1.3 §7.6.3.3.4), DDS-Security builtin…1,077Apache-2.0 Network programming No standard library mtb_pac_psoc6_04Peripheral Access Crate for Infineon CY8C6xx4 PSOC™ 6 microcontrollers1,075non-standard Embedded development Hardware support estimacrosKalman estimator (macrosupport)1,074MIT Embedded development Hardware support ax-fs-devfsDevice filesystem used by ArceOS1,074Apache-2.0 Filesystem No standard library temprefThis crate provides a type whose value remains unchanged even when accessed through a mutable reference.1,072MIT OR Apache-2.0 Concurrency Data structures mtb_pac_psoc6_03Peripheral Access Crate for Infineon CY8C6xx5 PSOC™ 6 microcontrollers1,070non-standard Embedded development Hardware support mtb_pac_psoc6_01Peripheral Access Crate for Infineon CY8C6xx6 and CY8C6xx7 PSOC™ 6 microcontrollers1,068non-standard Embedded development Hardware support ref_strCompressed borrowed-or-shared string types for no_std Rust.1,066MIT OR Apache-2.0 Data structures No standard library neorv32-sysLow-level bindings for NEORV32 HAL and library.1,064non-standard External FFI bindings No standard library lib-q-k12Pure Rust implementation of the KangarooTwelve hash function for lib-Q1,063Apache-2.0 Cryptography No standard library chacha20-blake3ChaCha20-BLAKE3: Secure, Simple and Fast encryption for any CPU1,063MIT Cryptography No standard library collage-core`collage` is a template engine for Rust, designed for writing HTML and similar markup languages.1,062LGPL-3.0 Accessibility Development tools cortex-m-stackStack usage tools for Cortex-M processors1,062MIT OR Apache-2.0 Embedded development Hardware support tinycororust bindings to minicoro1,062Apache-2.0 API bindings Asynchronous lesbar-macrosProcedural macros for string types that encode legible text.1,061MIT Data structures No standard library axplat-arm-qemu-virtImplementation of `axplat` hardware abstraction layer for QEMU ARM virtual machine.1,060GPL-3.0-or-later OR Apache-2.0 OR MulanPSL-2.0 Embedded development Hardware support loongarch_vcpuOS-neutral LoongArch vCPU core1,059Apache-2.0 Embedded development No standard library combinatoryCreate every combination possible of values of 2D collections / iterators.1,058non-standard No standard library mtb_pac_psoc_c3Peripheral Access Crate for Infineon PSOC™ Control C3 microcontrollers1,058non-standard Embedded development Hardware support continue_streamA Swift-style AsyncIterator.Continuation-style channel for Rust1,058MIT OR Apache-2.0 Asynchronous Concurrency bijective-enum-mapConvert an enum to and from another type, with From (or TryFrom)1,056MIT OR Apache-2.0 Encoding No standard library bitfielderYet another bitfield library1,056MIT OR Apache-2.0 Embedded development Hardware support nsrbNifty Simple Ring Buffer (aka circular buffer) is a no_std library that provides 2 macros to easily create fixed circular buffer…1,055MIT Data structures No standard library edxECDH key exchange using Ed25519 derived keys1,055BSD-3-Clause Cryptography No standard library sdmmc-protocolno_std SD/MMC protocol building blocks for embedded systems1,055Apache-2.0 Embedded development Hardware support okkYet another approach to replacing the `Ok(())`.1,052MIT OR Apache-2.0 No standard library Rust patterns rockchip-npuLow-level device layer for Rockchip NPUs1,050Apache-2.0 Embedded development Hardware support embedded-sdmmc-devA basic SD/MMC driver for Embedded Rust.1,049MIT OR Apache-2.0 Embedded development No standard library signer-primitivesUnified signing trait and types for multi-chain transaction signers.1,047MIT OR Apache-2.0 Cryptography::Cryptocurrencies No standard library ssd1331-asyncAsync driver for SSD1331-based displays with SPI interface.1,046Apache-2.0 Embedded development No standard library hid-reporthandle USB HID report descriptors1,046MIT OR Apache-2.0 No standard library Parser implementations vqmA vector, quaternion, and matrix library targeted at embedded systems and robotics.1,044MIT OR Apache-2.0 Embedded development Mathematics embassy-nfcCrate name reserved for the Embassy project1,043MIT OR Apache-2.0 Embedded development Hardware support