55 lines
1.2 KiB
Python
Executable File
55 lines
1.2 KiB
Python
Executable File
#!/usr/bin/python3
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from flask import Flask, request
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import threading
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import serial
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import time
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app = Flask(__name__)
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globals()['data'] = ""
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globals()['lock'] = threading.Lock()
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@app.route('/update', methods=['PUT'])
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def update():
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grid = request.json['data']
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grid_string = prepare_grid(grid)
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with globals()['lock']:
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globals()['data'] = grid_string
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return grid_string
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def prepare_grid(grid):
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# follow down up down down up down
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HEIGHT = 5
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WIDTH = 6
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out = ""
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for x in range(WIDTH):
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for y in (range(0,HEIGHT,1) if x%3 == 1 else range(HEIGHT-1,-1,-1)):
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for r in range(3):
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out += hex(grid[x][y][r])[2:] + 'n'
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out += 'l'
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out += 'q'
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return out
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def serial_func():
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with serial.Serial('/dev/ttyACM0', 9600, timeout=1) as ser:
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while True:
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with globals()['lock']:
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if globals()['data'] != '':
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t1 = time.time()
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ser.write(bytes(globals()['data'], 'ascii'))
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t2 = time.time()
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print("time taken: " + str(t2-t1) + "s")
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globals()['data'] = ''
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time.sleep(0.1)
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serial_thread = threading.Thread(target=serial_func)
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serial_thread.start()
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if __name__ == '__main__':
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app.run(host='0.0.0.0')
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