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Only display temperature above 50 C

master
James Gao 2014-10-16 00:46:04 -07:00
rodzic d1f5faef36
commit 7d72bfb803
3 zmienionych plików z 53 dodań i 37 usunięć
Pokaż statystyki Ściągnij plik aktualizacji Ściągnij plik porównania Expand all files Collapse all files

23
kiln/Adafruit_alphanumeric.py
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@ -172,13 +172,17 @@ class AlphaScroller(threading.Thread):
def __init__(self, address=0x70, interval=.25): def __init__(self, address=0x70, interval=.25):
self.interval = interval self.interval = interval
self.disp = Alphanumeric(address) self.disp = Alphanumeric(address)
self.text = [(' ',)]*4 self.text = ''
self.counter = 0 self.counter = 0
self.pause = threading.Event()
self.pause.set()
self.shown = True
super(AlphaScroller, self).__init__() super(AlphaScroller, self).__init__()
self.running = True self.running = True
def stop(self): def stop(self):
self.pause.set()
self.running = False self.running = False
def set_text(self, text, pad=True, reset=True): def set_text(self, text, pad=True, reset=True):
@ -201,6 +205,19 @@ class AlphaScroller(threading.Thread):
def set_speed(self, interval): def set_speed(self, interval):
self.interval = interval self.interval = interval
def show(self):
self.pause.set()
self.shown = True
def hide(self):
self.pause.clear()
self.clear()
self.shown = False
def clear(self):
for i in range(4):
self.disp.writeChar(i, ' ')
def run(self): def run(self):
while self.running: while self.running:
for i in range(4): for i in range(4):
@ -213,8 +230,8 @@ class AlphaScroller(threading.Thread):
self.disp.writeChar(i, *char) self.disp.writeChar(i, *char)
time.sleep(self.interval) time.sleep(self.interval)
self.counter += 1 self.counter += 1
for i in range(4): self.pause.wait()
self.disp.writeChar(i, ' ') self.clear()
if __name__ == "__main__": if __name__ == "__main__":
scroller = AlphaScroller(interval=.4) scroller = AlphaScroller(interval=.4)

25
kiln/server.py
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@ -2,33 +2,18 @@ import time
import tornado.ioloop import tornado.ioloop
import tornado.web import tornado.web
device_file = "/sys/bus/w1/devices/3b-000000182b57/w1_slave"
def read_temp_raw():
f = open(device_file, 'r')
lines = f.readlines()
f.close()
return lines
def read_temp():
lines = read_temp_raw()
while lines[0].strip()[-3:] != 'YES':
time.sleep(0.2)
lines = read_temp_raw()
equals_pos = lines[1].find('t=')
if equals_pos != -1:
temp_string = lines[1][equals_pos+2:]
temp_c = float(temp_string) / 1000.0
temp_f = temp_c * 9.0 / 5.0 + 32.0
return temp_c, temp_f
class MainHandler(tornado.web.RequestHandler): class MainHandler(tornado.web.RequestHandler):
def initialize(self, monitor):
self.monitor = monitor
def get(self): def get(self):
self.write("<!doctype html><head><meta http-equiv='refresh' content='5' ></head><p>Current temperature: %.2f&deg;C, %.2f&deg;F"%read_temp()) self.write("<!doctype html><head><meta http-equiv='refresh' content='5' ></head><p>Current temperature: %.2f&deg;C, %.2f&deg;F"%read_temp())
if __name__ == "__main__":
application = tornado.web.Application([ application = tornado.web.Application([
(r"/", MainHandler), (r"/", MainHandler, dict(monitor=mon)),
]) ])
if __name__ == "__main__":
application.listen(8888) application.listen(8888)
tornado.ioloop.IOLoop.instance().start() tornado.ioloop.IOLoop.instance().start()

22
kiln/thermo.py
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@ -1,9 +1,12 @@
import time
import re import re
import threading import time
import datetime import datetime
import logging
import threading
from collections import deque from collections import deque
logger = logging.getLogger("thermo")
def temp_to_cone(temp): def temp_to_cone(temp):
"""Convert the current temperature to cone value using linear interpolation""" """Convert the current temperature to cone value using linear interpolation"""
cones = [600,614,635,683,717,747,792,804,838,852,884,894,900,923,955,984,999,1046,1060,1101,1120,1137,1154,1162,1168,1186,1196,1222,1240,1263,1280,1305,1315,1326,1346] cones = [600,614,635,683,717,747,792,804,838,852,884,894,900,923,955,984,999,1046,1060,1101,1120,1137,1154,1162,1168,1186,1196,1222,1240,1263,1280,1305,1315,1326,1346]
@ -20,9 +23,15 @@ class Monitor(threading.Thread):
self.device = "/sys/bus/w1/devices/%s/w1_slave"%name self.device = "/sys/bus/w1/devices/%s/w1_slave"%name
self.history = deque(maxlen=1024) self.history = deque(maxlen=1024)
try:
from Adafruit_alphanumeric import AlphaScroller from Adafruit_alphanumeric import AlphaScroller
self.display = AlphaScroller(interval=.4) self.display = AlphaScroller(interval=.4)
self.display.start() self.display.start()
self.display.hide()
except ImportError:
logger.info("Could not start AlphaScroller")
self.display = None
super(Monitor, self).__init__() super(Monitor, self).__init__()
self.running = True self.running = True
@ -41,6 +50,7 @@ class Monitor(threading.Thread):
def stop(self): def stop(self):
self.running = False self.running = False
if self.display is not None:
self.display.stop() self.display.stop()
@property @property
@ -54,12 +64,16 @@ class Monitor(threading.Thread):
now = datetime.datetime.now() now = datetime.datetime.now()
self.history.append((now, temp)) self.history.append((now, temp))
if self.display is not None:
if temp > 50:
if not self.display.shown:
self.display.show()
text = list('%0.0f'%temp) + ['degree'] + list('C %0.0f'%fahr)+['degree'] + list("F") text = list('%0.0f'%temp) + ['degree'] + list('C %0.0f'%fahr)+['degree'] + list("F")
if 600 <= temp: if 600 <= temp:
text += [' ', ' ', 'cone']+list("%0.1f"%temp_to_cone(temp)) text += [' ', ' ', 'cone']+list("%0.1f"%temp_to_cone(temp))
self.display.set_text(text, reset=False) self.display.set_text(text, reset=False)
elif self.display.shown:
self.display.hide()
if __name__ == "__main__": if __name__ == "__main__":
mon = Monitor() mon = Monitor()