Hi all,
it is my first time in this community, and i've signed up because i'm having so struggling with the development of an octoprint plugins, so i hope some of you could solve my problem.
I'm studying python since about 3 days so excuse for my scarying way to code.
I just want to create a basic graphical environment to control a fan that cool down my 3D printer enclosure with an HTU21D probe. After some try i've a fully working script with some labels, buttons and other stuff.
So this is the problem, i'm following the tutorial on the website to create the plugin directly on my raspberry pi3 but i'm stucked at the installation point, i'm proceeding in this way:
- source ~/oprint/bin/activate
- pip install "cookiecutter>=1.4,<1.7"
- octoprint dev plugin:new OctoFan
- setting some name for the following fields:
plugin_package [octoprint_helloworld]: OctoFan-pack
plugin_name [OctoPrint-Helloworld]: OctoFan
repo_name [OctoPrint-Helloworld]:
full_name [You]: My Name
email [you@example.com]: you@somewhere.net
github_username [you]: yourGithubName
plugin_version [0.1.0]: 1.0.0
plugin_description [TODO]: A quick simple fan control for enclosure...
plugin_license [AGPLv3]:
plugin_homepage []:
plugin_source []:
plugin_installurl []: - cd /../OctoFan
- inside of this folder deleting Extras, translation, static and templates folders
- now i place my own python script in the folder and renaming it as _ init _.py
- python setup.py develop
- octoprint dev plugin:install
- now i restart octoprint:
- sudo service octoprint restart
- sudo service octoprint stop
- octoprint serve
and this is what i get:
2020-03-11 17:17:01,476 - octoprint.plugin.core - ERROR - Error loading plugin OctoFan
Traceback (most recent call last):
File "/home/pi/oprint/local/lib/python2.7/site-packages/octoprint/plugin/core.py", line 863, in _import_plugin
instance = imp.load_module(module_name, f, filename, description)
File "/home/pi/oprint/local/lib/python2.7/site-packages/OctoPrint_Octofan-1.0.0-py2.7.egg/octoprint_OctoFan/__init__.py", line 11, in <module>
import htu21d.htu21d as htu
ImportError: No module named htu21d.htu21d
2020-03-11 17:17:01,501 - octoprint.plugin.core - ERROR - Error loading plugin OctoFan
Traceback (most recent call last):
File "/home/pi/oprint/local/lib/python2.7/site-packages/octoprint/plugin/core.py", line 863, in _import_plugin
instance = imp.load_module(module_name, f, filename, description)
File "/home/pi/oprint/local/lib/python2.7/site-packages/OctoPrint_Octofan-1.0.0-py2.7.egg/octoprint_OctoFan/__init__.py", line 11, in <module>
import htu21d.htu21d as htu
ImportError: No module named htu21d.htu21d
2020-03-11 17:17:01,527 - octoprint.plugin.core - INFO - Found 20 plugin(s) providing 20 mixin implementations, 31 hook handlers
2020-03-11 17:17:01,886 - octoprint.server.heartbeat - INFO - Starting server heartbeat, 900.0s interval
it seems that the library htu21d that i've used is the reason of my problems
this is my code:
# -*- coding: utf-8 -*-
#!/usr/bin/python
__plugin_name__ = "OctoFan"
__plugin_version__ = "1.0.0"
__plugin_description__ = "A simple enclosure fan control for our 3D printer with HTU21D probe"
__plugin_pythoncompat__ = "2.7"
import Tkinter as tk
import RPi.GPIO as GPIO
import time, os, sys
import htu21d.htu21d as htu
fanpin = 17 #metodo di numerazione del chip, equivale all'11 del metodo board
temp_address = 0x40
bus_num = 1
temp_threshold_radio_button = 33 #°C
tracking_var = False
sensor = htu.HTU21D()
status_fan = "Ventola OFF"
temp2show = " "
humid2show = " "
temp_provvisoria_1 = " "
temp_provvisoria_2 = " "
humid_provvisoria_1 = " "
humid_provvisoria_2 = " "
GPIO.setmode(GPIO.BCM)
GPIO.setup(fanpin, GPIO.OUT)
GPIO.setwarnings(False)
def temp_read():
temp_provvisoria_1 = float(sensor.read_temperature())
temp_provvisoria_2 = round(temp_provvisoria_1, 2)
temp2show = str(temp_provvisoria_2) + " °C"
label_temp['text']=temp2show
label_temp.after(500, temp_read)
def humid_read():
humid_provvisoria_1 = float(sensor.read_humidity())
humid_provvisoria_2 = round(humid_provvisoria_1)
humid2show = str(humid_provvisoria_2) + " %"
label_humid['text']=humid2show
label_humid.after(500, humid_read)
def Ventola_ON():
GPIO.output(fanpin, GPIO.HIGH)
print("Ventola accesa manualmente")
text_status['text'] = "Ventola ON"
text_status['fg'] = "green"
global tracking_var
tracking_var = False
def Ventola_OFF():
GPIO.output(fanpin, GPIO.LOW)
print("Ventola spenta manualmente")
text_status['text'] = "Ventola OFF"
text_status['fg'] = "red"
global tracking_var
tracking_var = False
def venti_deg():
global temp_threshold_radio_button
temp_threshold_radio_button = 25
print("soglia temperatura impostata a 25 °C")
def trenta_deg():
global temp_threshold_radio_button
temp_threshold_radio_button = 33
print("soglia temperatura impostata a 33 °C")
def Ventola_AUTO(toggle=False):
global tracking_var
if toggle:
if tracking_var:
tracking_var = False
else:
tracking_var = True
if tracking_var:
if temp_provvisoria_2 > temp_threshold_radio_button:
print("Soglia temperatura superata, accendo ventola enclosure")
GPIO.output(fanpin, GPIO.HIGH)
#status_fan("Ventola ON")
text_status['text'] = "Ventola ON"
text_status['fg'] = "green"
else:
print("Temperatura sotto la soglia, ventola spenta")
GPIO.output(fanpin, GPIO.LOW)
#status_fan("Ventola OFF")
text_status['text'] = "Ventola OFF"
text_status['fg'] = "red"
main_window.after(1000, Ventola_AUTO)
#finestra sul quale ancorare i widget
main_window = tk.Tk()
main_window.title("OctoFan")
main_window.geometry("500x300")
main_window.grid_columnconfigure(0, weight=1)
#cornice per il valore temperatura
label_frame_temp = tk.LabelFrame(main_window, text="Temperatura")
label_frame_temp.grid(row=0, column=0, padx=10, pady=10, sticky="N")
#etichetta per il valore temperatura
label_temp = tk.Label(label_frame_temp, text=temp2show)
label_temp.grid(row=0, column=0, padx=10, pady=10, sticky="N")
#cornice per umiditÃ
label_frame_humid = tk.LabelFrame(main_window, text="Umidità rel")
label_frame_humid.grid(row=0, column=3, padx=10, pady=10, sticky="N")
#etichetta per umiditÃ
label_humid = tk.Label(label_frame_humid, text=humid2show)
label_humid.grid(row=0, column=3, padx=10, pady=10, sticky="N")
#pulsante ventola on
fan_on = tk.Button(text="Ventola ON", fg="green", command=Ventola_ON)
fan_on.grid(row=1, column=0, padx=10, pady=10, sticky="N")
#pulsante ventola auto
fan_auto = tk.Button(text="Ventola AUTO", fg="blue", command=lambda: Ventola_AUTO(True))
fan_auto.grid(row=1, column=1, padx=10, pady=10, sticky="N")
#pulsante ventola off
fan_off = tk.Button(text="Ventola OFF", fg="red", command=Ventola_OFF)
fan_off.grid(row=1, column=3, padx=10, pady=10, sticky="E")
#cornice per checkbox
label_frame_threshold = tk.LabelFrame(main_window, text="Threshold Attivazione Ventola")
label_frame_threshold.grid(row=3, column=1, padx=10, pady=10)
#checkbox
temp_threshold = tk.IntVar()
temp_threshold.set(1)
#checkbox_1
temp_threshold_one = tk.Radiobutton(label_frame_threshold, text="25 C", variable=temp_threshold, value=0, command=venti_deg)
temp_threshold_one.grid(row=3, column=0, padx=10, pady=10, sticky="W")
#checkbox_2
temp_threshold_two = tk.Radiobutton(label_frame_threshold, text="33 C", variable=temp_threshold, value=1, command=trenta_deg)
temp_threshold_two.grid(row=3, column=1, padx=10, pady=10, sticky="W")
#cornice testo ventola
label_frame_fan = tk.LabelFrame(main_window, text="Status Ventola")
label_frame_fan.grid(row=0, column=1, padx=10, pady=10, sticky="N")
#testo ventola
text_status = tk.Label(label_frame_fan, text=status_fan, fg="red")
text_status.grid(row=0, column=1, padx=10, pady=10, sticky="N")
label_temp.after(500, temp_read)
label_humid.after(500, humid_read)
main_window.mainloop()
Thanks all for your help
