app.py

from flask import Flask, render_template, request
import board
import neopixel

app = Flask(__name__)

num_pixels = 100
pixel_pin = board.D18
ORDER = neopixel.RGB
pixels = neopixel.NeoPixel(
    pixel_pin, num_pixels, brightness=0.2, auto_write=False, pixel_order=ORDER
)


def setlight(colourin):
    pixels.fill((0, 0, 0))
    pixels.show()
    pixels.fill(colourin)
    pixels.show()


app = Flask(__name__)


def hex_to_rgb(value):
    value = value.lstrip("#")
    lv = len(value)
    return tuple(int(value[i : i + lv // 3], 16) for i in range(0, lv, lv // 3))


@app.route("/", methods=["GET", "POST"])
def index():
    if request.method == "POST":
        colour = request.form["colour_in"]
        setlight(hex_to_rgb(colour))
    return render_template("index.html")


if __name__ == "__main__":
    app.run(debug=True, host="0.0.0.0",port=80)