Example Code

Of course, we don’t just leave you with the board and a “good luck”; here are some code examples to get you started with your FeatherWing.

Make sure to visit the example code repo on Github for more example code.

These examples have been tested with the Adafruit Feather M4 Express, depending on which Feather you’re using, some modifications might be needed.

CircuitPython

Tested with CircuitPython 5.0. Additional libraries are needed, see README.md for details.

Initializing the LCD

import adafruit_ili9341
import displayio
import board

displayio.release_displays()

spi = board.SPI()
tft_cs = board.D9
tft_dc = board.D10

display_bus = displayio.FourWire(spi, command=tft_dc, chip_select=tft_cs)
display = adafruit_ili9341.ILI9341(display_bus, width=320, height=240)

Using the Touch Screen

import board, digitalio
from adafruit_stmpe610 import Adafruit_STMPE610_SPI

spi = board.SPI()
touch_cs = board.D6

touch = Adafruit_STMPE610_SPI(spi, digitalio.DigitalInOut(touch_cs))
while touch.buffer_empty:
    pass

print(touch.read_data())

Using the Keyboard

from bbq10keyboard import BBQ10Keyboard
import board

i2c = board.I2C()
kbd = BBQ10Keyboard(i2c)

while kbd.key_count == 0:
    pass

print(kbd.keys)

Using the microSD card

import board, digitalio
import adafruit_sdcard
import storage, os

spi = board.SPI()
sd_cs = board.D5

sdcard = adafruit_sdcard.SDCard(spi, digitalio.DigitalInOut(sd_cs))
vfs = storage.VfsFat(sdcard)
storage.mount(vfs, '/sd')

print(os.listdir('/sd/'))

Using the Neopixel

import board,
import neopixel

neopix_pin = board.D11

pixels = neopixel.NeoPixel(neopix_pin, 1)
pixels[0] = 0xFF00FF

Arduino

Initializing the LCD

#include <Adafruit_GFX.h>
#include <Adafruit_ILI9341.h>

#define TFT_CS 9
#define TFT_DC 10

Adafruit_ILI9341 tft(TFT_CS, TFT_DC);

void setup()
{
  tft.begin();
  tft.setRotation(1);
  tft.println("Hello World");
}

Using the Touch Screen

#include <Adafruit_STMPE610.h>

#define STMPE_CS 6

#define TS_MINX 150
#define TS_MINY 130
#define TS_MAXX 3800
#define TS_MAXY 4000

Adafruit_STMPE610 ts(STMPE_CS);

void setup()
{
  ts.begin();
  while (ts.bufferEmpty()) {
    ;
  }

  TS_Point p = ts.getPoint();
  p.x = map(p.x, TS_MINY, TS_MAXY, tft.height(), 0);
  p.y = map(p.y, TS_MINX, TS_MAXX, 0, tft.width());
}

Using the Keyboard

#include <BBQ10Keyboard.h>

BBQ10Keyboard keyboard;

void setup()
{
  Wire.begin();
  keyboard.begin();
  while (!keyboard.keyCount()) {
    ;
  }
  const BBQ10Keyboard::KeyEvent key = keyboard.keyEvent();
}

Using the microSD card

#include <SD.h>

#define SD_CS 5

void setup()
{
  SD.begin(SD_CS);
  File root = SD.open("/");
}

Using the Neopixel

#include <Adafruit_NeoPixel.h>

#define NEOPIXEL_PIN 11

Adafruit_NeoPixel pixels(1, NEOPIXEL_PIN, NEO_GRB + NEO_KHZ800);

void setup()
{
    pixels.begin();
    pixels.setPixelColor(0, pixels.Color(255, 0, 255));
    pixels.show();
}

void loop()
{
    delay(1000);
}

Last modified August 29, 2020