Have only one version of the controller, TODO add flags to switch from mock and actual version
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parent
3a7bb60360
commit
09504e9ec5
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@ -1,37 +1,97 @@
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import numpy as np
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import json
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import serial
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import subprocess
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import threading
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import time
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s = serial.Serial("/dev/ttyUSB0", 115200, timeout=10)
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q = queue.Queue()
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#process = subprocess.Popen(["ssh", "shrooms@localhost", "/usr/bin/env", "python", "/home/shrooms/go/src/shroom-server/shroom-pipe.py"], stdin=subprocess.PIPE, stdout=subprocess.PIPE)
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process = subprocess.Popen(["/usr/bin/env", "python", "/home/kelvin/src/shroom-server/shroom_pipe.py"], stdin=subprocess.PIPE, stdout=subprocess.PIPE)
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process = subprocess.Popen(["ssh", "shrooms@threefortiethofonehamster.com", "python", "/home/shrooms/go/src/shroom-server/shroom-pipe.py"], stdin=subprocess.PIPE, stdout=subprocess.PIPE)
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def send_update(msg):
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global process
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process.stdin.write(bytes(json.dumps(msg) + "\n", "utf8"))
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process.stdin.flush()
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# TODO run thread to process data from process's stdout
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exiting = False
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# run thread to process data from process's stdout
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def stdout_loop():
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while not exiting:
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msg = process.stdout.readline()
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print("got message ", msg)
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stdout_thread = threading.Thread(target=stdout_loop)
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stdout_thread.start()
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class MockSerial:
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def __init__(self):
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self.humidity = np.zeros(100)
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self.humidifier_on = False
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self.humidity[:] = 0.80
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self.humidity[-1] = 0.20
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self.humidity[0] = 0.20
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def write(self, msg):
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if msg == b'h':
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print("mock hum toggle")
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self.humidifier_on = not self.humidifier_on
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def read(self, _):
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t = time.time()
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temp = 25 + np.sin(0.01*2*np.pi*t) + 0.5*np.sin(0.0001*2*np.pi*t + 7)
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# very janky model of humidity diffusion
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# fix end conditions
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for _ in range(20):
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self.humidity[-1] = 0.2*0.20 + 0.8*self.humidity[-2]
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self.humidity[0] = 0.20
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if self.humidifier_on:
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self.humidity[20] = 1.5
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# use the gradient to determine the change in humidity
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avg = 0.5*(self.humidity[:-2] + self.humidity[2:])
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self.humidity[1:-1] += 0.2*(avg - self.humidity[1:-1])
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#print(self.humidity)
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humidity = self.humidity[60] + np.random.random()*0.003
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if self.humidifier_on:
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hv = 3.3
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else:
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hv = 0.0
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return bytes("{},{},{}\n".format(humidity, temp, hv), "utf8")
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s = MockSerial()
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def reset_serial():
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s.close()
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s = serial.Serial("/dev/ttyUSB0", 115200, timeout = 10)
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pass
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time.sleep(10)
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class Humidifier:
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def __init__(self):
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self.on = False
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self.history = np.array(30)
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self.history = np.zeros(10)
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self.switch_timeout = 0
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@property
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def off(self):
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return not self.on
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def update(self, volts):
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self.history[1:] = self.history[:-1]
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self.history[0] = volts
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#print(self.history)
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avg = np.sum(self.history)/self.history.shape[0]
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if self.state:
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if self.on:
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if avg < 0.2:
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self.on = False
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print("send status off")
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send_update({"status": 0})
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self.switch_timeout = time.time() + 1
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else:
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if avg > 2.6:
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self.on = True
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print("send status on")
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send_update({"status": 1})
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self.switch_timeout = time.time() + 1
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def toggle(self, s):
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if time.time() > self.switch_timeout:
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@ -40,34 +100,73 @@ class Humidifier:
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humidifier = Humidifier()
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target_lower = 0.85
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target_higher = 0.90
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target_upper = 0.90
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feedforward_coeff = 50
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humidifier_history = np.zeros(30)
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first_sample = False
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try:
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last_sample = 0
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while True:
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now = time.time()
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if now - last_sample < 0.5:
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s.write(b"s")
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resp = s.read(120)
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if len(resp) == 0:
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reset_serial()
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time.sleep(5)
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continue
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parts = resp.split(b",")
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humidity = float(parts[0])
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temp = float(parts[1])
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volts = float(parts[2])
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print(humidity, temp, volts)
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time.sleep(0.5 - (now - last_sample))
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continue
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last_sample = now
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humidifier.update(volts)
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if humidity < target_lower and humidifier.off:
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humidifier.toggle(s)
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elif humidity > target_upper and humidifier.on:
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humidifier.toggle(s)
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# TODO check on the process
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s.write(b"s")
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resp = s.read(120)
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if len(resp) == 0:
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reset_serial()
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time.sleep(5)
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continue
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parts = resp.split(b",")
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humidity = float(parts[0])
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temp = float(parts[1])
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volts = float(parts[2])
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print(humidity, temp, volts)
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if first_sample:
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humidifier_history[:] = humidity
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first_sample = False
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else:
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time.sleep(0.5-(now - last_sample))
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humidifier_history[:-1] = humidifier_history[1:]
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humidifier_history[-1] = humidity
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# compensate for the slow response time by adding a little feed forward
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# using the slope of the humidifier data
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slope = (humidifier_history[-1] - humidifier_history[0])/humidifier_history.shape[0]
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comp_humidity = humidity + feedforward_coeff*slope
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try:
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humidifier.update(volts)
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if comp_humidity < target_lower and humidifier.off:
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humidifier.toggle(s)
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elif comp_humidity > target_upper and humidifier.on:
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humidifier.toggle(s)
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update = {
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"time": int(now*1000),
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"temp": temp,
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"hum": humidity,
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"hv": volts
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}
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send_update(update)
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except Exception as e:
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print("pipe errored out, restarting: ", e)
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# restart the process I guess
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exiting = True
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process.kill()
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time.sleep(0.1)
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stdout_thread.join()
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exiting = False
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process = subprocess.Popen(["/usr/bin/env", "python", "/home/kelvin/src/shroom-server/shroom_pipe.py"], stdin=subprocess.PIPE, stdout=subprocess.PIPE)
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stdout_thread = threading.Thread(target=stdout_loop)
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stdout_thread.start()
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finally:
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# TODO kill ssh connection
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process.
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pass
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# kill ssh connection
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exiting = True
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process.kill()
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stdout_thread.join()
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@ -1,170 +0,0 @@
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import numpy as np
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import json
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import serial
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import subprocess
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import threading
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import time
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#process = subprocess.Popen(["ssh", "shrooms@localhost", "/usr/bin/env", "python", "/home/shrooms/go/src/shroom-server/shroom-pipe.py"], stdin=subprocess.PIPE, stdout=subprocess.PIPE)
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process = subprocess.Popen(["/usr/bin/env", "python", "/home/kelvin/src/shroom-server/shroom_pipe.py"], stdin=subprocess.PIPE, stdout=subprocess.PIPE)
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def send_update(msg):
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global process
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process.stdin.write(bytes(json.dumps(msg) + "\n", "utf8"))
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process.stdin.flush()
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exiting = False
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# run thread to process data from process's stdout
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def stdout_loop():
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while not exiting:
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msg = process.stdout.readline()
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print("got message ", msg)
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stdout_thread = threading.Thread(target=stdout_loop)
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stdout_thread.start()
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class MockSerial:
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def __init__(self):
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self.humidity = np.zeros(100)
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self.humidifier_on = False
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self.humidity[:] = 0.80
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self.humidity[-1] = 0.20
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self.humidity[0] = 0.20
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def write(self, msg):
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if msg == b'h':
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print("mock hum toggle")
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self.humidifier_on = not self.humidifier_on
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def read(self, _):
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t = time.time()
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temp = 25 + np.sin(0.01*2*np.pi*t) + 0.5*np.sin(0.0001*2*np.pi*t + 7)
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# very janky model of humidity diffusion
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# fix end conditions
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for _ in range(20):
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self.humidity[-1] = 0.2*0.20 + 0.8*self.humidity[-2]
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self.humidity[0] = 0.20
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if self.humidifier_on:
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self.humidity[20] = 2
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# use the gradient to determine the change in humidity
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avg = 0.5*(self.humidity[:-2] + self.humidity[2:])
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self.humidity[1:-1] += 0.2*(avg - self.humidity[1:-1])
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#print(self.humidity)
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humidity = self.humidity[60] + np.random.random()*0.003
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if self.humidifier_on:
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hv = 3.3
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else:
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hv = 0.0
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return bytes("{},{},{}\n".format(humidity, temp, hv), "utf8")
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s = MockSerial()
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def reset_serial():
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pass
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time.sleep(10)
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class Humidifier:
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def __init__(self):
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self.on = False
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self.history = np.zeros(10)
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self.switch_timeout = 0
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@property
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def off(self):
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return not self.on
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def update(self, volts):
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self.history[1:] = self.history[:-1]
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self.history[0] = volts
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#print(self.history)
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avg = np.sum(self.history)/self.history.shape[0]
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if self.on:
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if avg < 0.2:
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self.on = False
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print("send status off")
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send_update({"status": 0})
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self.switch_timeout = time.time() + 1
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else:
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if avg > 2.6:
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self.on = True
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print("send status on")
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send_update({"status": 1})
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self.switch_timeout = time.time() + 1
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def toggle(self, s):
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if time.time() > self.switch_timeout:
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s.write(b"h")
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self.switch_timeout = time.time() + 7
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humidifier = Humidifier()
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target_lower = 0.85
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target_upper = 0.90
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humidifier_history = np.zeros(30)
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first_sample = False
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try:
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last_sample = 0
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while True:
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now = time.time()
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if now - last_sample < 0.5:
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time.sleep(0.5 - (now - last_sample))
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continue
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last_sample = now
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s.write(b"s")
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resp = s.read(120)
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if len(resp) == 0:
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reset_serial()
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time.sleep(5)
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continue
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parts = resp.split(b",")
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humidity = float(parts[0])
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temp = float(parts[1])
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volts = float(parts[2])
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print(humidity, temp, volts)
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if first_sample:
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humidifier_history[:] = humidity
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first_sample = False
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else:
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humidifier_history[:-1] = humidifier_history[1:]
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humidifier_history[-1] = humidity
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# compensate for the slow response time
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slope = (humidifier_history[-1] - humidifier_history[0])/humidifier_history.shape[0]
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comp_humidity = humidity + 50*slope
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try:
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humidifier.update(volts)
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if comp_humidity < target_lower and humidifier.off:
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humidifier.toggle(s)
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elif comp_humidity > target_upper and humidifier.on:
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humidifier.toggle(s)
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update = {
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"time": int(now*1000),
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"temp": temp,
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"hum": humidity,
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"hv": volts
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}
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send_update(update)
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except Exception as e:
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print("pipe errored out, restarting: ", e)
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# restart the process I guess
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exiting = True
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process.kill()
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time.sleep(0.1)
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stdout_thread.join()
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exiting = False
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process = subprocess.Popen(["/usr/bin/env", "python", "/home/kelvin/src/shroom-server/shroom_pipe.py"], stdin=subprocess.PIPE, stdout=subprocess.PIPE)
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stdout_thread = threading.Thread(target=stdout_loop)
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stdout_thread.start()
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finally:
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# kill ssh connection
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exiting = True
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process.kill()
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stdout_thread.join()
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