kopia lustrzana https://github.com/jamesgao/kiln_controller
Add current thermocouple reading code
rodzic
91913e8c48
commit
4bc3309b92
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import time
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import tornado.ioloop
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import tornado.web
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device_file = "/sys/bus/w1/devices/3b-000000182b57/w1_slave"
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def read_temp_raw():
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f = open(device_file, 'r')
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lines = f.readlines()
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f.close()
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return lines
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def read_temp():
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lines = read_temp_raw()
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while lines[0].strip()[-3:] != 'YES':
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time.sleep(0.2)
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lines = read_temp_raw()
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equals_pos = lines[1].find('t=')
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if equals_pos != -1:
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temp_string = lines[1][equals_pos+2:]
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temp_c = float(temp_string) / 1000.0
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temp_f = temp_c * 9.0 / 5.0 + 32.0
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return temp_c, temp_f
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class MainHandler(tornado.web.RequestHandler):
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def get(self):
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self.write("<!doctype html><head><meta http-equiv='refresh' content='5' ></head><p>Current temperature: %.2f°C, %.2f°F"%read_temp())
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application = tornado.web.Application([
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(r"/", MainHandler),
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])
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if __name__ == "__main__":
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application.listen(8888)
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tornado.ioloop.IOLoop.instance().start()
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