Created
April 27, 2018 14:56
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simple SPI apa102 with adafruit 8x8
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| import spidev | |
| spi = spidev.SpiDev() | |
| spi.open(0,0) | |
| spi.max_speed_hz = 800000 | |
| #signal = [0x00,0x00,0x00,0x00,0xff,0x00,0x00,0x15,0xff,0x11,0x11,0x11,0xff,0x00,0x00,0x00,0xff,0x11,0x11,0x00,0xff,0xff,0xff,0xff] | |
| mat = [ | |
| [0,0,0,0,0,0,0,0], | |
| [0,0,0,0,0,0,0,0], | |
| [0,0,0,0,0,0,0,0], | |
| [0,0,1,1,1,1,0,0], | |
| [0,1,0,0,0,0,1,0], | |
| [0,0,1,1,1,1,0,0], | |
| [0,1,0,0,0,0,1,0], | |
| [0,0,0,0,0,0,0,0] | |
| ] | |
| signal = [0x00,0x00,0x00,0x00] | |
| for y in range(8): | |
| for x in range(8): | |
| value = mat[y][7-x] | |
| if value: | |
| signal += [0xe0, 0xff,0xff,0xff] | |
| else: | |
| signal += [0xf0, 0x00,0x00,0x00] | |
| signal += [0xff,0xff,0xff,0xff] | |
| spi.xfer(signal) | |
| spi.close() |
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