Skip to content

Fix ht16k33_seg after the move to framebuffer #4

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 2 commits into from
Jan 9, 2018
Merged

Fix ht16k33_seg after the move to framebuffer #4

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
3fcc2f1
Fix ht16k33_seg after the move to framebuffer
deshipu Dec 3, 2017
42bfda2
Put the .fill method back
deshipu Dec 3, 2017
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
47 changes: 30 additions & 17 deletions ht16k33_matrix.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -14,20 +14,11 @@ def __init__(self, i2c, address=0x70):
self.address = address
self._temp = bytearray(1)

self._buffer = bytearray(16)
self._fb_buffer = bytearray(self.WIDTH * self.HEIGHT
* self.FB_BPP // 8)
self.framebuffer = framebuf.FrameBuffer(
self._fb_buffer, self.WIDTH, self.HEIGHT, self.FORMAT)

self.framebuffer.fill(0)
self.buffer = bytearray(16)
self._write_cmd(_HT16K33_OSCILATOR_ON)
self.blink_rate(0)
self.brightness(15)

self.pixel = self.framebuffer.pixel
self.fill = self.framebuffer.fill

def _write_cmd(self, byte):
self._temp[0] = byte
self.i2c.writeto(self.address, self._temp)
Expand All @@ -47,23 +38,45 @@ def brightness(self, brightness):
self._brightness = brightness
self._write_cmd(_HT16K33_CMD_BRIGHTNESS | brightness)

def show(self):
self.i2c.writeto_mem(self.address, 0x00, self.buffer)

def fill(self, color):
fill = 0xff if color else 0x00
for i in range(16):
self.buffer[i] = fill


class HT16K33Matrix:
def __init__(self, i2c, address=0x70):
super().__init__(i2c, address)

self._fb_buffer = bytearray(self.WIDTH * self.HEIGHT
* self.FB_BPP // 8)
self.framebuffer = framebuf.FrameBuffer(
self._fb_buffer, self.WIDTH, self.HEIGHT, self.FORMAT)

self.framebuffer.fill(0)
self.pixel = self.framebuffer.pixel
self.fill = self.framebuffer.fill

def show(self):
self._copy_buf()
self.i2c.writeto_mem(self.address, 0x00, self._buffer)
super().show()


class Matrix16x8(HT16K33):
class Matrix16x8(HT16K33Matrix):
WIDTH = 16
HEIGHT = 8
FORMAT = framebuf.MONO_HLSB
FB_BPP = 1

def _copy_buf(self):
for y in range(8):
self._buffer[y * 2] = self._fb_buffer[y]
self.buffer[y * 2] = self._fb_buffer[y]


class Matrix8x8(HT16K33):
class Matrix8x8(HT16K33Matrix):
WIDTH = 8
HEIGHT = 8
FORMAT = framebuf.MONO_HLSB
Expand All @@ -72,18 +85,18 @@ class Matrix8x8(HT16K33):
def _copy_buf(self):
for y in range(8):
b = self._fb_buffer[y]
self._buffer[y * 2] = (b >> 1) | (b << 7)
self.buffer[y * 2] = (b >> 1) | (b << 7)


class Matrix8x8x2(HT16K33):
class Matrix8x8x2(HT16K33Matrix):
WIDTH = 8
HEIGHT = 8
FORMAT = framebuf.GS4_HMSB
FB_BPP = 4

def _copy_buf(self):
pixel = self.framebuffer.pixel
_buffer = self._buffer
_buffer = self.buffer
for y in range(8):
b = 0
for x in range(8):
Expand Down