paralleldisplay – Native helpers for driving parallel displays

Available on these boards
  • 0xCB Helios
  • 42. Keebs Frood
  • ARAMCON Badge 2019
  • ARAMCON2 Badge
  • ATMegaZero ESP32-S2
  • Adafruit CLUE nRF52840 Express
  • Adafruit Camera
  • Adafruit Circuit Playground Bluefruit
  • Adafruit EdgeBadge
  • Adafruit Feather Bluefruit Sense
  • Adafruit Feather ESP32-S2 Reverse TFT
  • Adafruit Feather ESP32-S2 TFT
  • Adafruit Feather ESP32S2
  • Adafruit Feather M0 Express
  • Adafruit Feather M4 CAN
  • Adafruit Feather M4 Express
  • Adafruit Feather RP2040
  • Adafruit Feather RP2040 DVI
  • Adafruit Feather RP2040 EPD
  • Adafruit Feather RP2040 Scorpio
  • Adafruit Feather nRF52840 Express
  • Adafruit FunHouse
  • Adafruit Grand Central M4 Express
  • Adafruit Hallowing M4 Express
  • Adafruit ItsyBitsy M0 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 Metro ESP32S2
  • Adafruit Metro M0 Express
  • Adafruit Metro M4 Airlift Lite
  • Adafruit Metro M4 Express
  • Adafruit Metro nRF52840 Express
  • Adafruit Monster M4SK
  • Adafruit PyGamer
  • Adafruit PyPortal
  • Adafruit PyPortal Pynt
  • Adafruit PyPortal Titano
  • Adafruit Pybadge
  • Adafruit QT Py ESP32S2
  • Adafruit QT Py M0 Haxpress
  • 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
  • BBQ20KBD
  • BDMICRO VINA-D21
  • BDMICRO VINA-D51
  • BLE-SS dev board Multi Sensor
  • BLOK
  • BPI-Bit-S2
  • BastBLE
  • BastWiFi
  • BlueMicro840
  • COSMO-Pico
  • CP Sapling M0 w/ SPI Flash
  • CP32-M4
  • Cedar Grove StringCar M0 Express
  • Challenger NB RP2040 WiFi
  • Challenger RP2040 LTE
  • Challenger RP2040 LoRa
  • Challenger RP2040 SD/RTC
  • Challenger RP2040 SubGHz
  • Challenger RP2040 WiFi
  • Challenger RP2040 WiFi/BLE
  • CircuitBrains Basic
  • CircuitBrains Deluxe
  • CrumpS2
  • Cytron Maker Nano RP2040
  • Cytron Maker Pi RP2040
  • DynOSSAT-EDU-EPS
  • DynOSSAT-EDU-OBC
  • E-Fidget
  • ELECFREAKS PICO:ED
  • ESP 12k NodeMCU
  • ESP32-S2-DevKitC-1-N4
  • ESP32-S2-DevKitC-1-N4R2
  • ESP32-S2-DevKitC-1-N8R2
  • Electrolama minik
  • Electronic Cats Hunter Cat NFC
  • Electronut Labs Blip
  • Electronut Labs Papyr
  • EncoderPad RP2040
  • Espruino Bangle.js 2
  • FeatherS2
  • FeatherS2 Neo
  • FeatherS2 PreRelease
  • Fig Pi
  • Franzininho WIFI w/Wroom
  • Franzininho WIFI w/Wrover
  • Gravitech Cucumber M
  • Gravitech Cucumber MS
  • Gravitech Cucumber R
  • Gravitech Cucumber RS
  • HMI-DevKit-1.1
  • Hack Club Sprig
  • Hacked Feather M0 Express with 8Mbyte SPI flash
  • HalloWing M0 Express
  • HexKyS2
  • HiiBot BlueFi
  • IkigaiSense Vita nRF52840
  • IoTs2
  • Kaluga 1
  • LILYGO TTGO T8 ESP32-S2
  • LILYGO TTGO T8 ESP32-S2 w/Display
  • MDBT50Q-DB-40
  • MDBT50Q-RX Dongle
  • MORPHEANS MorphESP-240
  • Maker badge by Czech maker
  • MakerDiary nRF52840 MDK
  • MakerDiary nRF52840 MDK USB Dongle
  • Makerdiary M60 Keyboard
  • Makerdiary Pitaya Go
  • Makerdiary nRF52840 M.2 Developer Kit
  • Melopero Shake RP2040
  • MicroDev microS2
  • Mini SAM M4
  • MixGo CE
  • 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
  • PillBug
  • Pimoroni Badger 2040
  • Pimoroni Interstate 75
  • Pimoroni Keybow 2040
  • Pimoroni Motor 2040
  • Pimoroni PGA2040
  • Pimoroni Pico LiPo (16MB)
  • Pimoroni Pico LiPo (4MB)
  • Pimoroni PicoSystem
  • Pimoroni Plasma 2040
  • Pimoroni Servo 2040
  • Pimoroni Tiny 2040 (2MB)
  • Pimoroni Tiny 2040 (8MB)
  • PyKey 18 Numpad
  • PyKey 44 Ergo
  • PyKey 60
  • PyKey 87 TKL
  • RP2.65-F
  • RP2040 Stamp
  • Raspberry Pi Pico
  • Raspberry Pi Pico W
  • S2Mini
  • S2Pico
  • SAM E54 Xplained Pro
  • SAM32v26
  • SSCI ISP1807 Dev Board
  • SSCI ISP1807 Micro Board
  • Saola 1 w/Wroom
  • Saola 1 w/Wrover
  • Seeed XIAO nRF52840 Sense
  • Seeeduino Wio Terminal
  • Seeeduino XIAO RP2040
  • Serpente
  • Silicognition LLC M4-Shim
  • Silicognition LLC RP2040-Shim
  • SparkFun LUMIDrive
  • SparkFun MicroMod RP2040 Processor
  • SparkFun MicroMod SAMD51 Processor
  • SparkFun MicroMod nRF52840 Processor
  • SparkFun Pro Micro RP2040
  • SparkFun Pro nRF52840 Mini
  • SparkFun RedBoard Turbo
  • SparkFun Thing Plus - RP2040
  • SparkFun Thing Plus - SAMD51
  • StackRduino M0 PRO
  • TG-Boards' Datalore IP M4
  • TG-Watch
  • TTGO T8 ESP32-S2-WROOM
  • Targett Module Clip w/Wroom
  • Targett Module Clip w/Wrover
  • Teknikio Bluebird
  • The Open Book Feather
  • TinkeringTech ScoutMakes Azul
  • TinyS2
  • Trinket M0 Haxpress
  • UARTLogger II
  • VCC-GND Studio YD RP2040
  • W5100S-EVB-Pico
  • W5500-EVB-Pico
  • WarmBit BluePixel nRF52840
  • Waveshare ESP32-S2-Pico
  • Waveshare ESP32-S2-Pico-LCD
  • Waveshare RP2040-LCD-1.28
  • Waveshare RP2040-Zero
  • WeAct Studio Pico
  • WeAct Studio Pico 16MB
  • iLabs Challenger 840
  • keithp.com snekboard
  • nanoESP32-S2 w/Wrover
  • nanoESP32-S2 w/Wroom
  • nice!nano
  • nullbits Bit-C PRO
  • takayoshiotake Octave RP2040

class paralleldisplay.ParallelBus(*, data0: microcontroller.Pin, command: microcontroller.Pin, chip_select: microcontroller.Pin, write: microcontroller.Pin, read: microcontroller.Pin | None, reset: microcontroller.Pin | None = None, frequency: int = 30000000)

Manage updating a display over 8-bit parallel bus in the background while Python code runs. This protocol may be referred to as 8080-I Series Parallel Interface in datasheets. It doesn’t handle display initialization.

Create a ParallelBus object associated with the given pins. The bus is inferred from data0 by implying the next 7 additional pins on a given GPIO port.

The parallel bus and pins are then in use by the display until displayio.release_displays() is called even after a reload. (It does this so CircuitPython can use the display after your code is done.) So, the first time you initialize a display bus in code.py you should call displayio.release_displays() first, otherwise it will error after the first code.py run.

Parameters:
reset() → None

Performs a hardware reset via the reset pin. Raises an exception if called when no reset pin is available.

send(command: int, data: circuitpython_typing.ReadableBuffer) → None

Sends the given command value followed by the full set of data. Display state, such as vertical scroll, set via send may or may not be reset once the code is done.