Signed in as:
filler@godaddy.com
Signed in as:
filler@godaddy.com
Custom Code to be used on the Badger2040 E-ink platform by Pimoroni
Code includes:
Launcher Modifications
Custom QR codes for this website
Custom Badge for JBeale
*please note*
This code is meant to replace parts of the original Badger2040 code.
It will not work standalone - you will need to replace the original sections with the corresponding headings below.
Badge.py:
import badger2040
import jpegdec
# Global Constants
WIDTH = badger2040.WIDTH
HEIGHT = badger2040.HEIGHT
IMAGE_WIDTH = 104
COMPANY_HEIGHT = 30
DETAILS_HEIGHT = 20
NAME_HEIGHT = HEIGHT - COMPANY_HEIGHT - (DETAILS_HEIGHT * 2) - 2
TEXT_WIDTH = WIDTH - IMAGE_WIDTH - 1
COMPANY_TEXT_SIZE = 0.6
DETAILS_TEXT_SIZE = 0.5
LEFT_PADDING = 5
NAME_PADDING = 20
DETAIL_SPACING = 10
BADGE_PATH = "/badges/badge.txt"
DEFAULT_TEXT = """System 404
Jack Beale
/badges/badge.jpg
"""
# ------------------------------
# Utility functions
# ------------------------------
# Reduce the size of a string until it fits within a given width
def truncatestring(text, text_size, width):
while True:
length = display.measure_text(text, text_size)
if length > 0 and length > width:
text = text[:-1]
else:
text += ""
return text
# ------------------------------
# Drawing functions
# ------------------------------
# Draw the badge, including user text
def draw_badge():
display.set_pen(0)
display.clear()
# Draw badge image
jpeg.open_file(badge_image)
jpeg.decode(WIDTH - IMAGE_WIDTH, 0)
# Draw a border around the image
display.set_pen(0)
display.line(WIDTH - IMAGE_WIDTH, 0, WIDTH - 1, 0)
display.line(WIDTH - IMAGE_WIDTH, 0, WIDTH - IMAGE_WIDTH, HEIGHT - 1)
display.line(WIDTH - IMAGE_WIDTH, HEIGHT - 1, WIDTH - 1, HEIGHT - 1)
display.line(WIDTH - 1, 0, WIDTH - 1, HEIGHT - 1)
# Uncomment this if a white background is wanted behind the company
# display.set_pen(15)
# display.rectangle(1, 1, TEXT_WIDTH, COMPANY_HEIGHT - 1)
# Draw the company
display.set_pen(15) # Change this to 0 if a white background is used
display.set_font("serif")
display.text(company, LEFT_PADDING, (COMPANY_HEIGHT // 2) + 1, WIDTH, COMPANY_TEXT_SIZE)
# Draw a white background behind the name
display.set_pen(15)
display.rectangle(1, COMPANY_HEIGHT + 1, TEXT_WIDTH, NAME_HEIGHT)
# Draw the name, scaling it based on the available width
display.set_pen(0)
display.set_font("sans")
name_size = 2.0 # A sensible starting scale
while True:
name_length = display.measure_text(name, name_size)
if name_length >= (TEXT_WIDTH - NAME_PADDING) and name_size >= 0.1:
name_size -= 0.01
else:
display.text(name, (TEXT_WIDTH - name_length) // 2, (NAME_HEIGHT // 2) + COMPANY_HEIGHT + 1, WIDTH, name_size)
break
# Draw a white backgrounds behind the details
display.set_pen(15)
display.rectangle(1, HEIGHT - DETAILS_HEIGHT * 2, TEXT_WIDTH, DETAILS_HEIGHT - 1)
display.rectangle(1, HEIGHT - DETAILS_HEIGHT, TEXT_WIDTH, DETAILS_HEIGHT - 1)
# Draw the first detail's title and text
display.set_pen(0)
display.set_font("sans")
name_length = display.measure_text(detail1_title, DETAILS_TEXT_SIZE)
display.text(detail1_title, LEFT_PADDING, HEIGHT - ((DETAILS_HEIGHT * 3) // 2), WIDTH, DETAILS_TEXT_SIZE)
display.text(detail1_text, 5 + name_length + DETAIL_SPACING, HEIGHT - ((DETAILS_HEIGHT * 3) // 2), WIDTH, DETAILS_TEXT_SIZE)
# Draw the second detail's title and text
name_length = display.measure_text(detail2_title, DETAILS_TEXT_SIZE)
display.text(detail2_title, LEFT_PADDING, HEIGHT - (DETAILS_HEIGHT // 2), WIDTH, DETAILS_TEXT_SIZE)
display.text(detail2_text, LEFT_PADDING + name_length + DETAIL_SPACING, HEIGHT - (DETAILS_HEIGHT // 2), WIDTH, DETAILS_TEXT_SIZE)
display.update()
# ------------------------------
# Program setup
# ------------------------------
# Create a new Badger and set it to update NORMAL
display = badger2040.Badger2040()
display.led(128)
display.set_update_speed(badger2040.UPDATE_NORMAL)
display.set_thickness(2)
jpeg = jpegdec.JPEG(display.display)
# Open the badge file
try:
badge = open(BADGE_PATH, "r")
except OSError:
with open(BADGE_PATH, "w") as f:
f.write(DEFAULT_TEXT)
f.flush()
badge = open(BADGE_PATH, "r")
# Read in the next 6 lines
company = badge.readline() # "mustelid inc"
name = badge.readline() # "H. Badger"
detail1_title = badge.readline() # "RP2040"
detail1_text = badge.readline() # "2MB Flash"
detail2_title = badge.readline() # "E ink"
detail2_text = badge.readline() # "296x128px"
badge_image = badge.readline() # /badges/badge.jpg
# Truncate all of the text (except for the name as that is scaled)
company = truncatestring(company, COMPANY_TEXT_SIZE, TEXT_WIDTH)
detail1_title = truncatestring(detail1_title, DETAILS_TEXT_SIZE, TEXT_WIDTH)
detail1_text = truncatestring(detail1_text, DETAILS_TEXT_SIZE,
TEXT_WIDTH - DETAIL_SPACING - display.measure_text(detail1_title, DETAILS_TEXT_SIZE))
detail2_title = truncatestring(detail2_title, DETAILS_TEXT_SIZE, TEXT_WIDTH)
detail2_text = truncatestring(detail2_text, DETAILS_TEXT_SIZE,
TEXT_WIDTH - DETAIL_SPACING - display.measure_text(detail2_title, DETAILS_TEXT_SIZE))
# ------------------------------
# Main program
# ------------------------------
draw_badge()
while True:
# Sometimes a button press or hold will keep the system
# powered *through* HALT, so latch the power back on.
display.keepalive()
# If on battery, halt the Badger to save power, it will wake up if any of the front buttons are pressed
display.halt()
qrgen.py:
import badger2040
import qrcode
import time
import os
import badger_os
# Check that the qrcodes directory exists, if not, make it
try:
os.mkdir("/qrcodes")
except OSError:
pass
# Check that there is a qrcode.txt, if not preload
try:
text = open("/qrcodes/qrcode.txt", "r")
except OSError:
text = open("/qrcodes/qrcode.txt", "w")
if badger2040.is_wireless():
text.write("""https://jackbeale.com
Jack Beale
* Senior Systems Specialist
* Data Center Engineer
*
Scan this code to learn
more about me and what I do.
Loaded on BADGER 2040W
""")
else:
text.write("""https://jackbeale.com
Jack Beale
* Senior Systems Specialist
* Data Center Engineer
*
Scan this code to learn
more about me and what I do.
Loaded on BADGER 2040
""")
text.flush()
text.seek(0)
# Load all available QR Code Files
try:
CODES = [f for f in os.listdir("/qrcodes") if f.endswith(".txt")]
TOTAL_CODES = len(CODES)
except OSError:
pass
print(f'There are {TOTAL_CODES} QR Codes available:')
for codename in CODES:
print(f'File: {codename}')
display = badger2040.Badger2040()
code = qrcode.QRCode()
state = {
"current_qr": 0
}
def measure_qr_code(size, code):
w, h = code.get_size()
module_size = int(size / w)
return module_size * w, module_size
def draw_qr_code(ox, oy, size, code):
size, module_size = measure_qr_code(size, code)
display.set_pen(15)
display.rectangle(ox, oy, size, size)
display.set_pen(0)
for x in range(size):
for y in range(size):
if code.get_module(x, y):
display.rectangle(ox + x * module_size, oy + y * module_size, module_size, module_size)
def draw_qr_file(n):
display.led(128)
file = CODES[n]
codetext = open("/qrcodes/{}".format(file), "r")
lines = codetext.read().strip().split("\n")
code_text = lines.pop(0)
title_text = lines.pop(0)
detail_text = lines
# Clear the Display
display.set_pen(15) # Change this to 0 if a white background is used
display.clear()
display.set_pen(0)
code.set_text(code_text)
size, _ = measure_qr_code(128, code)
left = top = int((badger2040.HEIGHT / 2) - (size / 2))
draw_qr_code(left, top, 128, code)
left = 128 + 5
display.text(title_text, left, 20, badger2040.WIDTH, 2)
top = 40
for line in detail_text:
display.text(line, left, top, badger2040.WIDTH, 1)
top += 10
if TOTAL_CODES > 1:
for i in range(TOTAL_CODES):
x = 286
y = int((128 / 2) - (TOTAL_CODES * 10 / 2) + (i * 10))
display.set_pen(0)
display.rectangle(x, y, 8, 8)
if state["current_qr"] != i:
display.set_pen(15)
display.rectangle(x + 1, y + 1, 6, 6)
display.update()
badger_os.state_load("qrcodes", state)
changed = True
while True:
# Sometimes a button press or hold will keep the system
# powered *through* HALT, so latch the power back on.
display.keepalive()
if TOTAL_CODES > 1:
if display.pressed(badger2040.BUTTON_UP):
if state["current_qr"] > 0:
state["current_qr"] -= 1
changed = True
if display.pressed(badger2040.BUTTON_DOWN):
if state["current_qr"] < TOTAL_CODES - 1:
state["current_qr"] += 1
changed = True
if display.pressed(badger2040.BUTTON_B) or display.pressed(badger2040.BUTTON_C):
display.set_pen(15)
display.clear()
badger_os.warning(display, "To add QR codes, connect Badger 2040 W to a PC, load up Thonny, and add files to /qrcodes directory.")
time.sleep(4)
changed = True
if changed:
draw_qr_file(state["current_qr"])
badger_os.state_save("qrcodes", state)
changed = False
# Halt the Badger to save power, it will wake up if any of the front buttons are pressed
display.halt()
Copyright © 2025 Jack Jeremy Beale - All Rights Reserved.