Closed
Description
I'm currently working on my first circuitpython project, a 'busy light' that I'm hanging in front of my office. I'm using the resources from the latest Adafruit box which is a MatrixPortal and supporting hardware (like a 64x32 led matrix).
I wanted to give the system control via adafruit.io to turn the display on and off remotely. The closet solution I could find was to turn the brightness to 0. However my issues is that the font renders incorrectly once I turn the brightness back to 1. I have no idea how to fix this, I don't even know what is going wrong to google the right questions. I would really love some insight into this problem and how I could fix it.
Example images:
Before:
After:
My code:
import time
import random
import board
import terminalio
import displayio
from digitalio import DigitalInOut, Direction, Pull
from adafruit_matrixportal.matrixportal import MatrixPortal
from adafruit_bitmap_font import bitmap_font
from adafruit_display_text.label import Label
from adafruit_display_shapes.rect import Rect
from adafruit_matrixportal.network import Network
# --- Vars
UPDATE_DELAY = 5
IS_BUSY = True
IS_DIMMED = False
# ---
# --- Display setup ---
matrixportal = MatrixPortal(status_neopixel=board.NEOPIXEL, debug=True)
display<
6BD0
/span> = matrixportal.display
# Create group to hold content
group = displayio.Group()
# --- Content ---
# Background object
background = Rect(0,0,64,32, fill=0x000000)
group.append(background)
# Create status label (with a default y spacing for the 'connecting' text
font = bitmap_font.load_font("/IBMPlexMono-Medium-24_jep.bdf")
status_label = Label(font,y=14, max_glyphs=20)
# Default text show as connecting, once the internet connection has happened it will resume the code flow and update the text
status_label.text = "..."
group.append(status_label)
# ---
# Add group to display
display.show(group)
def update_bg():
# Pop the background off the bottom of the stack
background = group.pop(0)
# Change the background color of the background
if IS_BUSY:
background.fill = 0xFF0000
else:
background.fill = 0x00FF00
# Insert the modified background back at the bottom of the stack
group.insert(0, background)
def update_text():
# Set status text
status_label.text = "BUSY" if IS_BUSY else "FREE"
# Set status text position
# Get the bouding box info from the label component so we can center it. I subtract 1 from the final value to offset it due to the custom font sizing.
bbx, bby, bbwidth, bbh = status_label.bounding_box
status_label.x = round((display.width / 2 - bbwidth / 2) - 1)
status_label.y = display.height // 2
def fetch_updates():
print("Fetching status...")
# Returns a JSON object as a python dict object from the selected AdafruitIO feed
meetingFeed = matrixportal.get_io_feed("redacted")
meetingValue = meetingFeed['last_value']
isDimmedFeed = matrixportal.get_io_feed("redacted")
isDimmedValue = isDimmedFeed['last_value']
# Update the value with the converted string
global IS_BUSY
IS_BUSY = str_to_bool(meetingValue)
global IS_DIMMED
IS_DIMMED = str_to_bool(isDimmedValue)
def update_screen():
fetch_updates()
update_bg()
update_text()
def str_to_bool(s):
if s == 'True':
return True
elif s == 'False':
return False
else:
raise ValueError # evil ValueError that doesn't tell you what the wrong value was
# Initial update
update_screen()
last_update = time.monotonic()
while True:
# Brightness checking
if IS_DIMMED:
display.brightness = 0
else:
display.brightness = 1
# Status checking interval
if time.monotonic() > last_update + UPDATE_DELAY:
update_screen()
last_update = time.monotonic()Metadata
Metadata
Assignees
Labels
No labels