sync

rainbow_buttons/README.md

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+Source: https://gist.github.com/paulwinex/a65f0a36485ae1dea3de4a82f647949a

rainbow_buttons/main.py

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+import time
+from machine import Pin, SPI
+import st7789 as st7789
+from random import randrange, choice
+
+
+def hsv_to_rgb(h, s, v):
+    if s == 0.0:
+        return v, v, v
+    i = int(h * 6.0)  # XXX assume int() truncates!
+    f = (h * 6.0) - i
+    p = v * (1.0 - s)
+    q = v * (1.0 - s * f)
+    t = v * (1.0 - s * (1.0 - f))
+    i = i % 6
+    if i == 0:
+        return int(v * 255), int(t * 255), int(p * 255)
+    if i == 1:
+        return int(q * 255), int(v * 255), int(p * 255)
+    if i == 2:
+        return int(p * 255), int(v * 255), int(t * 255)
+    if i == 3:
+        return int(p * 255), int(q * 255), int(v * 255)
+    if i == 4:
+        return int(t * 255), int(p * 255), int(v * 255)
+    if i == 5:
+        return int(v * 255), int(p * 255), int(q * 255)
+    # Cannot get here
+
+
+def rainbow():
+    print('RAINBOW')
+    for i in range(240):
+        color = st7789.color565(*hsv_to_rgb(i / 240, 1.0, 1.0))
+        tft.hline(0, i, 135, color)
+
+
+def fill():
+    print('FILL')
+    tft.fill_rect(0, 0, 135, 240, st7789.color565(
+        randrange(0, 255), randrange(0, 255), randrange(0, 255)
+    ))
+
+
+def main():
+    p1 = Pin(0, Pin.IN)
+    p2 = Pin(35, Pin.IN)
+
+    time.sleep(0.5)
+    tft = st7789.ST7789(
+        SPI(2, baudrate=30000000, polarity=1, phase=1, sck=Pin(18), mosi=Pin(19)),
+        135,
+        240,
+        reset=Pin(23, Pin.OUT),
+        cs=Pin(5, Pin.OUT),
+        dc=Pin(16, Pin.OUT),
+        backlight=Pin(4, Pin.OUT),
+        rotation=0
+    )
+    tft.init()
+
+    time.sleep(0.5)
+    fill()
+    while True:
+        if not p1.value():
+            rainbow()
+        elif not p2.value():
+            fill()
+            time.sleep(0.1)
+
+main()