91 lines
2.4 KiB
Python
91 lines
2.4 KiB
Python
import time
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import json
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import traceback
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from adafruit_esp32spi import adafruit_esp32spi_wsgiserver
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from adafruit_wsgi.wsgi_app import WSGIApp
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import robot_wifi
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import random
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class RandomWalkSensors:
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def __init__(self):
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self.wifi = None
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self.server = None
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self.last_value = 0
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self.start_time = time.monotonic()
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self.last_time = self.start_time
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# self.app = None
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def setup_wifi(self, app):
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# self.app = app
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print("Setting up wifi.")
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self.wifi, esp = robot_wifi.connect_to_wifi()
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self.server = adafruit_esp32spi_wsgiserver.WSGIServer(80, application=app)
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adafruit_esp32spi_wsgiserver.set_interface(esp)
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print("Starting server")
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self.server.start()
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ip_int = ".".join(str(int(n)) for n in esp.ip_address)
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print(f"IP Address is {ip_int}")
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def reconnect(self):
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self.wifi.connect()
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self.server.start()
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def data(self, request):
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return (
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200,
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[("Content-Type", "application/json")],
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[
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json.dumps(
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{
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"value": self.last_value,
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"time": self.last_time - self.start_time,
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}
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)
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],
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)
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def index(self, request):
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# serve the live graph
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with open("graphing.html") as fd:
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return 200, [("Content-Type", "text/html")], [fd.read()]
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def update(self):
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# calculate time delta
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new_time = time.monotonic()
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time_delta = new_time - self.last_time
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self.last_time = new_time
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self.last_value += random.randint(-100, 100) * 0.01 * time_delta
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if self.last_value > 1:
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self.last_value = 1
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if self.last_value < -1:
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self.last_value = -1
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def main_loop(self):
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while True:
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try:
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self.update()
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self.server.update_poll()
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except RuntimeError as e:
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traceback.print_exception(BaseException, e, e.__traceback__)
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self.wifi.reset()
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self.reconnect()
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print("Reset complete.")
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def start(self):
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app = WSGIApp()
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app.route("/")(self.index)
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app.route("/data")(self.data)
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print("Starting")
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self.setup_wifi(app)
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self.main_loop()
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RandomWalkSensors().start()
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