Initial commit

README.org

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+#+title: GIRL Sign
+
+A MicroPython application to control a cheap, rewired LED locker sign that says
+"GIRL".

boot.py

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+import time
+
+from machine import Pin
+
+D1 = 5
+D2 = 4
+D3 = 0
+D4 = 2
+D5 = 14
+
+
+class Girl:
+    def __init__(
+        self, p_g: int = D1, p_i: int = D2, p_r: int = D3, p_l: int = D5
+    ) -> None:
+        self.pins = [
+            Pin(p_g, Pin.OUT),
+            Pin(p_i, Pin.OUT),
+            Pin(p_r, Pin.OUT),
+            Pin(p_l, Pin.OUT),
+        ]
+        for pin in self.pins:
+            pin.off()
+
+    def show(self, text: str) -> None:
+        for pin, value in zip(
+            self.pins,
+            [
+                int("g" in text),
+                int("i" in text),
+                int("r" in text),
+                int("l" in text),
+            ],
+        ):
+            pin.value(value)
+
+    def on(self) -> None:
+        for pin in self.pins:
+            pin.on()
+
+    def off(self) -> None:
+        for pin in self.pins:
+            pin.off()
+
+
+separate = [
+    "g",
+    "",
+    "i",
+    "",
+    "r",
+    "",
+    "l",
+    "",
+]
+
+flash = [
+    "girl",
+    "",
+    "girl",
+    "",
+    "girl",
+    "",
+]
+gradual = [
+    "g",
+    "gi",
+    "gir",
+    "girl",
+    "",
+]
+
+sign = Girl(D1, D2, D3, D5)
+
+while True:
+    for pattern in [separate, flash, gradual, gradual, flash]:
+        for state in pattern:
+            sign.show(state)
+            time.sleep(0.5)