adafruit_bus_device – Hardware accelerated external bus access

The I2CDevice and SPIDevice helper classes make managing transaction state on a bus easy. For example, they manage locking the bus to prevent other concurrent access. For SPI devices, it manages the chip select and protocol changes such as mode. For I2C, it manages the device address.

Available on these boards
  • 8086 Commander
  • AITHinker ESP32-C3S_Kit
  • ARAMCON Badge 2019
  • ARAMCON2 Badge
  • ATMegaZero ESP32-S2
  • Adafruit CLUE nRF52840 Express
  • Adafruit Camera
  • Adafruit Circuit Playground Bluefruit
  • Adafruit Circuit Playground Express 4-H
  • Adafruit CircuitPlayground Express
  • Adafruit CircuitPlayground Express with Crickit libraries
  • Adafruit EdgeBadge
  • Adafruit Feather Bluefruit Sense
  • Adafruit Feather ESP32-S2 TFT
  • Adafruit Feather ESP32S2
  • Adafruit Feather M0 RFM69
  • Adafruit Feather M0 RFM9x
  • Adafruit Feather M4 CAN
  • Adafruit Feather M4 Express
  • Adafruit Feather MIMXRT1011
  • Adafruit Feather RP2040
  • Adafruit Feather STM32F405 Express
  • Adafruit Feather nRF52840 Express
  • Adafruit FunHouse
  • Adafruit Grand Central M4 Express
  • Adafruit Hallowing M4 Express
  • Adafruit ItsyBitsy M4 Express
  • Adafruit ItsyBitsy RP2040
  • Adafruit ItsyBitsy nRF52840 Express
  • Adafruit KB2040
  • Adafruit LED Glasses Driver nRF52840
  • Adafruit Macropad RP2040
  • Adafruit MagTag
  • Adafruit Matrix Portal M4
  • Adafruit Metro ESP32S2
  • Adafruit Metro M4 Airlift Lite
  • Adafruit Metro M4 Express
  • Adafruit Metro nRF52840 Express
  • Adafruit Monster M4SK
  • Adafruit ProxLight Trinkey M0
  • Adafruit PyGamer
  • Adafruit PyPortal
  • Adafruit PyPortal Pynt
  • Adafruit PyPortal Titano
  • Adafruit Pybadge
  • Adafruit QT Py ESP32-S3 no psram
  • Adafruit QT Py ESP32S2
  • Adafruit QT Py RP2040
  • Adafruit QT2040 Trinkey
  • Adafruit Trellis M4 Express
  • AloriumTech Evo M51
  • Arduino Nano 33 BLE
  • Arduino Nano RP2040 Connect
  • Artisense Reference Design RD00
  • AtelierDuMaker nRF52840 Breakout
  • BDMICRO VINA-D51
  • BLE-SS dev board Multi Sensor
  • BastBLE
  • BastWiFi
  • BlueMicro840
  • CP32-M4
  • Capable Robot Programmable USB Hub
  • Challenger NB RP2040 WiFi
  • Challenger RP2040 LTE
  • Challenger RP2040 WiFi
  • Circuit Playground Express Digi-Key PyCon 2019
  • CircuitBrains Deluxe
  • CrumpS2
  • Cytron Maker Nano RP2040
  • Cytron Maker Pi RP2040
  • Diodes Delight Piunora
  • DynOSSAT-EDU-OBC
  • ESP 12k NodeMCU
  • ESP32-C3-DevKitM-1
  • ESP32-S3-Box-2.5
  • ESP32-S3-DevKitC-1-N8
  • ESP32-S3-DevKitC-1-N8R2
  • ESP32-S3-DevKitC-1-N8R8
  • Electronut Labs Blip
  • Electronut Labs Papyr
  • EncoderPad RP2040
  • Espruino Wifi
  • Feather ESP32S2 without PSRAM
  • Feather MIMXRT1011
  • Feather MIMXRT1062
  • FeatherS2
  • FeatherS2 Neo
  • FeatherS2 PreRelease
  • Franzininho WIFI w/Wroom
  • Franzininho WIFI w/Wrover
  • Gravitech Cucumber M
  • Gravitech Cucumber MS
  • Gravitech Cucumber R
  • Gravitech Cucumber RS
  • HMI-DevKit-1.1
  • HiiBot BlueFi
  • IMXRT1010-EVK
  • IkigaiSense Vita nRF52840
  • Kaluga 1
  • LILYGO TTGO T8 ESP32-S2 w/Display
  • MDBT50Q-DB-40
  • MDBT50Q-RX Dongle
  • MEOWBIT
  • MORPHEANS MorphESP-240
  • MakerDiary nRF52840 MDK
  • MakerDiary nRF52840 MDK USB Dongle
  • Makerdiary M60 Keyboard
  • Makerdiary Pitaya Go
  • Makerdiary nRF52840 M.2 Developer Kit
  • Melopero Shake RP2040
  • Metro MIMXRT1011
  • MicroDev microC3
  • MicroDev microS2
  • Mini SAM M4
  • NUCLEO STM32F746
  • NUCLEO STM32F767
  • NUCLEO STM32H743
  • OPENMV-H7 R1
  • Oak Dev Tech BREAD2040
  • Oak Dev Tech Cast-Away RP2040
  • Oak Dev Tech PixelWing ESP32S2
  • Open Hardware Summit 2020 Badge
  • PCA10056 nRF52840-DK
  • PCA10059 nRF52840 Dongle
  • Particle Argon
  • Particle Boron
  • Particle Xenon
  • Pimoroni Interstate 75
  • Pimoroni Keybow 2040
  • Pimoroni PGA2040
  • Pimoroni Pico LiPo (16MB)
  • Pimoroni Pico LiPo (4MB)
  • Pimoroni PicoSystem
  • Pimoroni Plasma 2040
  • Pimoroni Tiny 2040 (2MB)
  • Pimoroni Tiny 2040 (8MB)
  • PyCubedv04
  • PyCubedv04-MRAM
  • PyCubedv05
  • PyCubedv05-MRAM
  • PyKey 18 Numpad
  • PyKey 44 Ergo
  • PyKey 60
  • PyKey 87 TKL
  • PyboardV1_1
  • RP2040 Stamp
  • Raspberry Pi 4B
  • Raspberry Pi Compute Module 4
  • Raspberry Pi Compute Module 4 IO Board
  • Raspberry Pi Pico
  • Raspberry Pi Zero
  • Raspberry Pi Zero 2W
  • Raspberry Pi Zero W
  • Robo HAT MM1 M4
  • S2Mini
  • S2Pico
  • SAM E54 Xplained Pro
  • SAM32v26
  • SPRESENSE
  • ST STM32F746G Discovery
  • STM32F411E_DISCO
  • STM32F412G_DISCO
  • STM32F4_DISCO
  • Saola 1 w/Wroom
  • Saola 1 w/Wrover
  • Seeed XIAO nRF52840 Sense
  • Seeeduino Wio Terminal
  • Seeeduino XIAO RP2040
  • Silicognition LLC M4-Shim
  • SparkFun MicroMod RP2040 Processor
  • SparkFun MicroMod SAMD51 Processor
  • SparkFun MicroMod nRF52840 Processor
  • SparkFun Pro Micro RP2040
  • SparkFun Pro nRF52840 Mini
  • SparkFun STM32 MicroMod Processor
  • SparkFun Thing Plus - RP2040
  • SparkFun Thing Plus - SAMD51
  • SparkFun Thing Plus - STM32
  • Sprite_v2b
  • TG-Boards' Datalore IP M4
  • TG-Watch
  • THUNDERPACK_v11
  • THUNDERPACK_v12
  • Targett Module Clip w/Wroom
  • Targett Module Clip w/Wrover
  • Teensy 4.0
  • Teensy 4.1
  • Teknikio Bluebird
  • The Open Book Feather
  • TinkeringTech ScoutMakes Azul
  • TinyS2
  • UARTLogger II
  • WarmBit BluePixel nRF52840
  • Waveshare RP2040-Zero
  • Winterbloom Sol
  • XinaBox CC03
  • XinaBox CS11
  • iMX RT 1020 EVK
  • iMX RT 1060 EVK
  • nanoESP32-S2 w/Wrover
  • nanoESP32-S2 w/Wroom
  • nice!nano
  • stm32f411ce-blackpill
  • stm32f411ce-blackpill-with-flash