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stuff

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This commit is contained in:
Benjamin Tayehanpour 2026-09-26 20:44:44 +00:00
parent b88fb8b436
commit 93ca674f93
1 changed files with 14 additions and 14 deletions
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28
LCD.py
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@ -42,14 +42,14 @@ class LCD:
raise ValueError('pi_rev param must be 1 or 2')
# Initialise display
await self.lcd_byte(0x33, self.LCD_CMD) # 110011 Initialise
await self.lcd_byte(0x32, self.LCD_CMD) # 110010 Initialise
await self.lcd_byte(0x06, self.LCD_CMD) # 000110 Cursor move direction
await self.lcd_byte(0x0C, self.LCD_CMD) # 001100 Display On,Cursor Off, Blink Off
await self.lcd_byte(0x28, self.LCD_CMD) # 101000 Data length, number of lines, font size
await self.lcd_byte(0x01, self.LCD_CMD) # 000001 Clear display
self.lcd_byte(0x33, self.LCD_CMD) # 110011 Initialise
self.lcd_byte(0x32, self.LCD_CMD) # 110010 Initialise
self.lcd_byte(0x06, self.LCD_CMD) # 000110 Cursor move direction
self.lcd_byte(0x0C, self.LCD_CMD) # 001100 Display On,Cursor Off, Blink Off
self.lcd_byte(0x28, self.LCD_CMD) # 101000 Data length, number of lines, font size
self.lcd_byte(0x01, self.LCD_CMD) # 000001 Clear display
async def lcd_byte(self, bits, mode):
def lcd_byte(self, bits, mode):
# Send byte to data pins
# bits = data
# mode = 1 for data, 0 for command
@ -59,18 +59,18 @@ class LCD:
# High bits
self.bus.write_byte(self.I2C_ADDR, bits_high)
await self.toggle_enable(bits_high)
self.toggle_enable(bits_high)
# Low bits
self.bus.write_byte(self.I2C_ADDR, bits_low)
await self.toggle_enable(bits_low)
self.toggle_enable(bits_low)
async def toggle_enable(self, bits):
await asyncio.sleep(self.E_DELAY)
def toggle_enable(self, bits):
asyncio.sleep(self.E_DELAY)
self.bus.write_byte(self.I2C_ADDR, (bits | self.ENABLE))
await asyncio.sleep(self.E_PULSE)
asyncio.sleep(self.E_PULSE)
self.bus.write_byte(self.I2C_ADDR,(bits & ~self.ENABLE))
await asyncio.sleep(self.E_DELAY)
asyncio.sleep(self.E_DELAY)
async def async_message(self, string, line = 1):
async with lock:
@ -96,6 +96,6 @@ class LCD:
for i in range(self.LCD_WIDTH):
self.lcd_byte(ord(string[i]), self.LCD_CHR)
async def clear(self):
def clear(self):
# clear LCD display
self.lcd_byte(0x01, self.LCD_CMD)