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authornasrlol <nsrddyn@gmail.com>2024-11-24 12:59:50 +0100
committernasrlol <nsrddyn@gmail.com>2024-11-24 12:59:50 +0100
commitdeadf64d1b05985f52cd64fd72232cfdb628b832 (patch)
tree04ca44c335185ebcba54b075269279e538f60d99 /bin/hardware_driver.py
parent3a6928a0189bfe8d481c7eeac7a3d3df5dd9cdc0 (diff)
moved the source files to a seperate folder
Diffstat (limited to 'bin/hardware_driver.py')
-rw-r--r--bin/hardware_driver.py68
1 files changed, 0 insertions, 68 deletions
diff --git a/bin/hardware_driver.py b/bin/hardware_driver.py
deleted file mode 100644
index 1afb219..0000000
--- a/bin/hardware_driver.py
+++ /dev/null
@@ -1,68 +0,0 @@
-from smbus2 import SMBus
-from time import sleep
-
-ALIGN_FUNC = {"left": "ljust", "right": "rjust", "center": "center"}
-CLEAR_DISPLAY = 0x01
-ENABLE_BIT = 0b00000100
-LINES = {1: 0x80, 2: 0xC0, 3: 0x94, 4: 0xD4}
-
-LCD_BACKLIGHT = 0x08
-LCD_NOBACKLIGHT = 0x00
-
-
-class LCD(object):
-
- def __init__(self, address=0x27, bus=1, width=20, rows=4, backlight=True):
- self.address = address
- self.bus = SMBus(bus)
- self.delay = 0.0005
- self.rows = rows
- self.width = width
- self.backlight_status = backlight
-
- self.write(0x33)
- self.write(0x32)
- self.write(0x06)
- self.write(0x0C)
- self.write(0x28)
- self.write(CLEAR_DISPLAY)
- sleep(self.delay)
-
- def _write_byte(self, byte):
- self.bus.write_byte(self.address, byte)
- self.bus.write_byte(self.address, (byte | ENABLE_BIT))
- sleep(self.delay)
- self.bus.write_byte(self.address, (byte & ~ENABLE_BIT))
- sleep(self.delay)
-
- def write(self, byte, mode=0):
- backlight_mode = LCD_BACKLIGHT if self.backlight_status else LCD_NOBACKLIGHT
- self._write_byte(mode | (byte & 0xF0) | backlight_mode)
- self._write_byte(mode | ((byte << 4) & 0xF0) | backlight_mode)
-
- def text(self, text, line, align="left"):
- self.write(LINES.get(line, LINES[1]))
- text, other_lines = self.get_text_line(text)
- text = getattr(text, ALIGN_FUNC.get(align, "ljust"))(self.width)
- for char in text:
- self.write(ord(char), mode=1)
- if other_lines and line <= self.rows - 1:
- self.text(other_lines, line + 1, align=align)
-
- def backlight(self, turn_on=True):
- self.backlight_status = turn_on
- self.write(0)
-
- def get_text_line(self, text):
- line_break = self.width
- if len(text) > self.width:
- line_break = text[: self.width + 1].rfind(" ")
- if line_break < 0:
- line_break = self.width
- return text[:line_break], text[line_break:].strip()
-
- def clear(self):
- self.write(CLEAR_DISPLAY)
-
- def read(self):
- self._read_i2c_block_data