From c33a76059f24ea1b07ca266bc69816d3f1ccbf6b Mon Sep 17 00:00:00 2001 From: Damien George <damien.p.george@gmail.com> Date: Thu, 11 Feb 2016 13:21:07 +0000 Subject: [PATCH] esp8266/tests: Add neopixel.py test. --- esp8266/tests/neopixel.py | 64 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 esp8266/tests/neopixel.py diff --git a/esp8266/tests/neopixel.py b/esp8266/tests/neopixel.py new file mode 100644 index 000000000..7717bb496 --- /dev/null +++ b/esp8266/tests/neopixel.py @@ -0,0 +1,64 @@ +import time +import machine +from esp import neopixel_write + +class NeoPixel: + def __init__(self, pin, n): + self.pin = pin + self.n = n + self.buf = bytearray(n * 3) + + def __setitem__(self, index, val): + r, g, b = val + self.buf[index * 3] = g + self.buf[index * 3 + 1] = r + self.buf[index * 3 + 2] = b + + def __getitem__(self, index): + i = index * 3 + return self.buf[i], self.buf[i + 1], self.buf[i + 2] + + def write(self): + neopixel_write(self.pin, self.buf, True) + +def test(): + # put a neopixel strip on GPIO4 + p = machine.Pin(4, machine.Pin.OUT) + np = NeoPixel(p, 8) + n = np.n + + # cycle + for i in range(4 * n): + for j in range(n): + np[j] = (0, 0, 0) + np[i % n] = (255, 255, 255) + np.write() + time.sleep_ms(25) + + # bounce + for i in range(4 * n): + for j in range(n): + np[j] = (0, 0, 128) + if (i // n) % 2 == 0: + np[i % n] = (0, 0, 0) + else: + np[n - 1 - (i % n)] = (0, 0, 0) + np.write() + time.sleep_ms(60) + + # fade in/out + for i in range(0, 4 * 256, 8): + for j in range(n): + if (i // 256) % 2 == 0: + val = i & 0xff + else: + val = 255 - (i & 0xff) + np[j] = (val, 0, 0) + np.write() + + # clear + for i in range(n): + np[i] = (0, 0, 0) + np.write() + +test() -- GitLab