Merge pull request #268 from pimoroni/feature/qrcode

QRCode Library

.gitmodules

@@ -14,3 +14,6 @@
 [submodule "drivers/scd4x/src"]
 	path = drivers/scd4x/src
 	url = https://github.com/Sensirion/embedded-i2c-scd4x
+[submodule "micropython/modules/qrcode"]
+	path = micropython/modules/qrcode
+	url = https://github.com/pimoroni/QR-Code-Generator

micropython/examples/badger2040/launcher.py

@@ -16,6 +16,7 @@
 inverted = False
 
 icons = bytearray(launchericons.data())
+icons_width = 576
 
 examples = [
     ("_clock", 0),
@@ -24,6 +25,7 @@
     ("_image", 3),
     ("_list", 4),
     ("_badge", 5),
+    ("_qrgen", 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}/qrgen.py _qrgen)

micropython/examples/badger2040/qrgen.py

@@ -0,0 +1,70 @@
+import badger2040
+import qrcode
+import time
+
+
+# Open the qrcode file
+try:
+    text = open("qrcode.txt", "r")
+except OSError:
+    text = open("qrcode.txt", "w")
+    text.write("""https://pimoroni.com/badger2040
+Badger 2040
+* 296x128 1-bit e-ink
+* six user buttons
+* user LED
+* 2MB QSPI flash
+
+Scan this code to learn
+more about Badger 2040.
+""")
+    text.flush()
+    text.seek(0)
+
+
+lines = text.read().strip().split("\n")
+code_text = lines.pop(0)
+title_text = lines.pop(0)
+detail_text = lines
+
+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(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.thickness(2)
+display.text(title_text, left, 20, 0.5)
+display.thickness(1)
+
+top = 40
+for line in detail_text:
+    display.text(line, left, top, 0.4)
+    top += 10
+
+display.update()
+
+while True:
+    time.sleep(1.0)

micropython/examples/pico_display/basic_qrcode.py

@@ -0,0 +1,43 @@
+import picodisplay as display  # Comment this line out to use PicoDisplay2
+# import picodisplay2 as display  # Uncomment this line to use PicoDisplay2
+import 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.set_pen(128, 128, 128)
+    display.rectangle(ox, oy, size, size)
+    display.set_pen(0, 0, 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)
+
+
+width = display.get_width()
+height = display.get_height()
+
+code = qrcode.QRCode()
+code.set_text("shop.pimoroni.com")
+
+display.init(bytearray(width * height * 2))
+
+display.set_pen(128, 128, 128)
+display.clear()
+display.set_pen(0, 0, 0)
+
+size, module_size = measure_qr_code(height, code)
+left = int((width // 2) - (size // 2))
+top = int((height // 2) - (size // 2))
+draw_qr_code(left, top, height, code)
+
+display.update()
+
+while True:
+    pass

micropython/modules/badger2040-micropython.cmake

@@ -34,3 +34,4 @@ include(badger2040/micropython)
 include(micropython/examples/badger2040/micropython-builtins)
 include(plasma/micropython)
 include(ulab/code/micropython)
+include(qrcode/micropython/micropython)

micropython/modules/micropython.cmake

@@ -42,5 +42,6 @@ include(pico_wireless/micropython)
 include(plasma/micropython)
 include(hub75/micropython)
 include(ulab/code/micropython)
+include(qrcode/micropython/micropython)
 
-include(modules_py/modules_py)
+include(modules_py/modules_py)