qrcode: Add example to badgerOS

micropython/examples/badger2040/launcher.py

@@ -16,6 +16,7 @@ font_size = 1
 inverted = False
 
 icons = bytearray(launchericons.data())
+icons_width = 576
 
 examples = [
     ("_clock", 0),
@@ -24,6 +25,7 @@ examples = [
     ("_image", 3),
     ("_list", 4),
     ("_badge", 5),
+    ("_qr_code", 8),
     ("_info", 6),
     ("_help", 7)
 ]
@@ -139,9 +141,9 @@ def render():
     for i in range(max_icons):
         x = centers[i]
         label, icon = examples[i + (page * 3)]
-        label = label[1:]
+        label = label[1:].replace("_", " ")
         display.pen(0)
-        display.icon(icons, icon, 512, 64, x - 32, 24)
+        display.icon(icons, icon, icons_width, 64, x - 32, 24)
         w = display.measure_text(label, font_sizes[font_size])
         display.text(label, x - int(w / 2), 16 + 80, font_sizes[font_size])
 

micropython/examples/badger2040/micropython-builtins.cmake

@@ -51,3 +51,4 @@ copy_module(usermod_badger2040 ${CMAKE_CURRENT_LIST_DIR}/list.py _list)
 copy_module(usermod_badger2040 ${CMAKE_CURRENT_LIST_DIR}/badge.py _badge)
 copy_module(usermod_badger2040 ${CMAKE_CURRENT_LIST_DIR}/help.py _help)
 copy_module(usermod_badger2040 ${CMAKE_CURRENT_LIST_DIR}/info.py _info)
+copy_module(usermod_badger2040 ${CMAKE_CURRENT_LIST_DIR}/qr_code.py _qr_code)

micropython/examples/badger2040/qr_code.py

@@ -0,0 +1,35 @@
+import badger2040
+import qrcode
+import time
+
+display = badger2040.Badger2040()
+code = qrcode.QRCode()
+
+
+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.pen(15)
+    display.rectangle(ox, oy, size, size)
+    display.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)
+
+
+code.set_text("pimoroni.com/badger2040")
+size, _ = measure_qr_code(128, code)
+left = int((badger2040.WIDTH / 2) - (size / 2))
+top = int((badger2040.HEIGHT / 2) - (size / 2))
+draw_qr_code(left, top, 128, code)
+
+display.update()
+
+while True:
+    time.sleep(1.0)