app.py

from flask import Flask, request
import subprocess
import arduino_serial
# import arduino_firmata
app = Flask(__name__)


@app.route('/')
def hello_world():
    return 'Hello World!'

# cribbed from https://github.com/amperka/ino/blob/f23ee5cb14edc30ec087d3eab7b301736da42362/ino/commands/upload.py


def load_hex(hexfile):
    subprocess.call('avrdude -p atmega2560 -P /dev/ttyACM0 -c wiring -b 115200 -D -U flash:w:%s:i' % hexfile, shell=True)


@app.route('/test')
def test_load():
    hexfile = '/home/pi/test_sketch2/.build/mega2560/firmware.hex'
    load_hex(hexfile)

    return 'loaded'


@app.route('/test2')
def test_load2():
    hexfile = '/home/pi/test_sketch/.build/mega2560/firmware.hex'
    load_hex(hexfile)

    return 'loaded'


@app.route('/color', methods=['GET'])
def color():
    hue = request.args.get('hue')
    arduino_serial.send(bytes(chr(int(hue))))
    return 'loaded'


if __name__ == '__main__':
    app.debug = True
    app.run(host='0.0.0.0')