Difference between revisions of "AdaFruit Ecosystem"
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== Adafruit CircuitPython Hardware == | == Adafruit CircuitPython Hardware == | ||
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| − | + | === HT16K33 LED Backpack === | |
* 0.54" 14-segment LED HT16K33 Backpack | * 0.54" 14-segment LED HT16K33 Backpack | ||
* Default I2C address of the display is 0x70 | * Default I2C address of the display is 0x70 | ||
| + | * [https://circuitpython.readthedocs.io/projects/ht16k33/en/latest/ documentation] | ||
| + | * [https://learn.adafruit.com/micropython-hardware-led-backpacks-and-featherwings/circuitpython Adafruit_CircuitPython_HT16K33 How-To] | ||
<nowiki>import board | <nowiki>import board | ||
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display.show()</nowiki> | display.show()</nowiki> | ||
| − | ===Velleman VMA412=== | + | === Velleman VMA412 RGB TFT display === |
* [https://www.velleman.eu/products/view/?id=435582 VMA42 website] with downloads | * [https://www.velleman.eu/products/view/?id=435582 VMA42 website] with downloads | ||
* 2.8" touch screen, 240x320 RGB, ILI9341 display driver | * 2.8" touch screen, 240x320 RGB, ILI9341 display driver | ||
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* [https://github.com/adafruit/Adafruit_CircuitPython_Touchscreen CircuitPython touch screen library] | * [https://github.com/adafruit/Adafruit_CircuitPython_Touchscreen CircuitPython touch screen library] | ||
* Most examples use four-wire SPI bus, plus calls into displayio objects/methods | * Most examples use four-wire SPI bus, plus calls into displayio objects/methods | ||
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==Adafruit IO== | ==Adafruit IO== | ||
Revision as of 06:52, 11 May 2020
Contents
CircuitPython
Docs/Learning Resources
- CircuitPython 101 - Getting Started
- CircuitPython Essentials - After reading through the getting started matrial.
- CircuitPython ReadTheDocs - API. But why does it list core modules like gamepad in the docs but not in the help( "modules" ) list?
General
- ls /dev/tty.*
- screen /dev/tty.blahblah
- /lib is in sys.path by default
- help( "modules" )
- array.array - single types specified by typecode character at runtime
- collections.namedTuple - a fixed sized dict without the
- gc.mem_alloc() shows RAM used, gc.mem_free() shows memory available
- boot.py runs BEFORE USB is setup, outputs to boot_out.txt
- globals() to show what modules are loaded - can't unload modules
Installation
- Download latest version of circuitpython for the given board
- Tap reset button twice to enter UF2 (USB Flasher version 2) bootloader. A new drive shows up on your computer called boardnameBOOT, e.g., TRINKETBOOT
- Drag uf2 file into there and this will trigger board to reboot
Adafruit CircuitPython Library
Bundle
- A bundle of useful CircuitPython libraries ready to use from the filesystem ONLY for use on boards that have extra flash storage.
- Github repo - download the latest. Contains precompiled .mpy files that your copy over to /lib
- Documentation - Includes SD card usage utility, etc
Individual Library Installation
- For smaller boards you must copy the libraries manually
- See CircuitPython Libraries for more info.
- Create a lib folder on your CIRCUITPY drive and copy the files into there manually.
Adafruit CircuitPython Hardware
HT16K33 LED Backpack
- 0.54" 14-segment LED HT16K33 Backpack
- Default I2C address of the display is 0x70
- documentation
- Adafruit_CircuitPython_HT16K33 How-To
import board
import busio as io
i2c = io.I2C( board.SCL, board.SDA )
import adafruit_ht16k33.segments
display = adafruit_ht16k33.segments.Seg14x4( i2c )#, address=0x74)
display.fill(0)
display.print('CPY!')
display.show()
Velleman VMA412 RGB TFT display
- VMA42 website with downloads
- 2.8" touch screen, 240x320 RGB, ILI9341 display driver
- CircuitPython display driver for ILI9341
- CircuitPython touch screen library
- Most examples use four-wire SPI bus, plus calls into displayio objects/methods
Adafruit IO
- A data logging service that you can hit from you IoT device
Trinket M0
Specs
- microchip - SAMD21 32-bit Cortex M0+
- CPU speed - 48MHz
- Program memory size - 256KB flash
- RAM - 32KB
- Builtin Green ON LED
- Builtin red LED on pin #13
- Builtin RGB DotStar LED
- 5 GPIO pins
Reference
Downloads
Metro M4 Express
Available UART Combos
RX pin: microcontroller.pin.A1 TX pin: microcontroller.pin.A3 RX pin: microcontroller.pin.A2 TX pin: microcontroller.pin.A3 RX pin: microcontroller.pin.A5 TX pin: microcontroller.pin.A4 RX pin: microcontroller.pin.D4 TX pin: microcontroller.pin.A4 RX pin: microcontroller.pin.D5 TX pin: microcontroller.pin.A4 RX pin: microcontroller.pin.D6 TX pin: microcontroller.pin.A4 RX pin: microcontroller.pin.MISO TX pin: microcontroller.pin.A4 RX pin: microcontroller.pin.MOSI TX pin: microcontroller.pin.A4 RX pin: microcontroller.pin.D1 TX pin: microcontroller.pin.D0 RX pin: microcontroller.pin.D2 TX pin: microcontroller.pin.D0 RX pin: microcontroller.pin.D8 TX pin: microcontroller.pin.D0 RX pin: microcontroller.pin.D9 TX pin: microcontroller.pin.D0 RX pin: microcontroller.pin.SCL TX pin: microcontroller.pin.D0 RX pin: microcontroller.pin.D0 TX pin: microcontroller.pin.D1 RX pin: microcontroller.pin.D10 TX pin: microcontroller.pin.D1 RX pin: microcontroller.pin.D11 TX pin: microcontroller.pin.D1 RX pin: microcontroller.pin.D13 TX pin: microcontroller.pin.D1 RX pin: microcontroller.pin.D8 TX pin: microcontroller.pin.D1 RX pin: microcontroller.pin.D9 TX pin: microcontroller.pin.D1 RX pin: microcontroller.pin.D0 TX pin: microcontroller.pin.D12 RX pin: microcontroller.pin.D10 TX pin: microcontroller.pin.D12 RX pin: microcontroller.pin.D11 TX pin: microcontroller.pin.D12 RX pin: microcontroller.pin.D13 TX pin: microcontroller.pin.D12 RX pin: microcontroller.pin.D8 TX pin: microcontroller.pin.D12 RX pin: microcontroller.pin.D9 TX pin: microcontroller.pin.D12 RX pin: microcontroller.pin.D10 TX pin: microcontroller.pin.D13 RX pin: microcontroller.pin.D11 TX pin: microcontroller.pin.D13 RX pin: microcontroller.pin.D12 TX pin: microcontroller.pin.D13 RX pin: microcontroller.pin.D1 TX pin: microcontroller.pin.D3 RX pin: microcontroller.pin.D2 TX pin: microcontroller.pin.D3 RX pin: microcontroller.pin.D8 TX pin: microcontroller.pin.D3 RX pin: microcontroller.pin.D9 TX pin: microcontroller.pin.D3 RX pin: microcontroller.pin.SCL TX pin: microcontroller.pin.D3 RX pin: microcontroller.pin.A5 TX pin: microcontroller.pin.D7 RX pin: microcontroller.pin.D4 TX pin: microcontroller.pin.D7 RX pin: microcontroller.pin.D5 TX pin: microcontroller.pin.D7 RX pin: microcontroller.pin.D6 TX pin: microcontroller.pin.D7 RX pin: microcontroller.pin.MISO TX pin: microcontroller.pin.D7 RX pin: microcontroller.pin.MOSI TX pin: microcontroller.pin.D7 RX pin: microcontroller.pin.MISO TX pin: microcontroller.pin.MOSI RX pin: microcontroller.pin.SCK TX pin: microcontroller.pin.MOSI RX pin: microcontroller.pin.A5 TX pin: microcontroller.pin.SCK RX pin: microcontroller.pin.D4 TX pin: microcontroller.pin.SCK RX pin: microcontroller.pin.D5 TX pin: microcontroller.pin.SCK RX pin: microcontroller.pin.D6 TX pin: microcontroller.pin.SCK RX pin: microcontroller.pin.MISO TX pin: microcontroller.pin.SCK RX pin: microcontroller.pin.MOSI TX pin: microcontroller.pin.SCK RX pin: microcontroller.pin.D1 TX pin: microcontroller.pin.SDA RX pin: microcontroller.pin.D2 TX pin: microcontroller.pin.SDA RX pin: microcontroller.pin.D8 TX pin: microcontroller.pin.SDA RX pin: microcontroller.pin.D9 TX pin: microcontroller.pin.SDA RX pin: microcontroller.pin.SCL TX pin: microcontroller.pin.SDA
