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drivers/display/ssd1306.py: Add rotate method.

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And clean up (make more efficient) display set-up commands.
This commit is contained in:
Mike Causer 2021-04-20 17:07:43 +10:00 committed by Damien George
parent 8ff3520f67
commit 9eea51b730
1 changed files with 8 additions and 4 deletions
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12
drivers/display/ssd1306.py
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@ -37,12 +37,12 @@ class SSD1306(framebuf.FrameBuffer):
def init_display(self):
for cmd in (
SET_DISP | 0x00, # off
SET_DISP, # display off
# address setting
SET_MEM_ADDR,
0x00, # horizontal
# resolution and layout
SET_DISP_START_LINE | 0x00,
SET_DISP_START_LINE, # start at line 0
SET_SEG_REMAP | 0x01, # column addr 127 mapped to SEG0
SET_MUX_RATIO,
self.height - 1,
@ -66,14 +66,14 @@ class SSD1306(framebuf.FrameBuffer):
# charge pump
SET_CHARGE_PUMP,
0x10 if self.external_vcc else 0x14,
SET_DISP | 0x01,
SET_DISP | 0x01, # display on
): # on
self.write_cmd(cmd)
self.fill(0)
self.show()
def poweroff(self):
self.write_cmd(SET_DISP | 0x00)
self.write_cmd(SET_DISP)
def poweron(self):
self.write_cmd(SET_DISP | 0x01)
@ -85,6 +85,10 @@ class SSD1306(framebuf.FrameBuffer):
def invert(self, invert):
self.write_cmd(SET_NORM_INV | (invert & 1))
def rotate(self, rotate):
self.write_cmd(SET_COM_OUT_DIR | ((rotate & 1) << 3))
self.write_cmd(SET_SEG_REMAP | (rotate & 1))
def show(self):
x0 = 0
x1 = self.width - 1