88 lines
1.9 KiB
Python
88 lines
1.9 KiB
Python
from microbit import *
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class LCD1602:
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def __init__(self, lcd_i2c_addr):
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self.buf = bytearray(1)
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self.BK = 0x08
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self.RS = 0x00
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self.E = 0x04
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self.setcmd(0x33)
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sleep(5)
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self.send(0x30)
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sleep(5)
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self.send(0x20)
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sleep(5)
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self.setcmd(0x28)
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self.setcmd(0x0C)
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self.setcmd(0x06)
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self.setcmd(0x01)
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self.version = "1.0"
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self.lcd_i2c_addr = lcd_i2c_addr
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def setReg(self, dat):
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self.buf[0] = dat
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i2c.write(self.lcd_i2c_addr, self.buf)
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sleep(1)
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def send(self, dat):
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d = dat & 0xF0
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d |= self.BK
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d |= self.RS
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self.setReg(d)
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self.setReg(d | 0x04)
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self.setReg(d)
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def setcmd(self, cmd):
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self.RS = 0
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self.send(cmd)
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self.send(cmd << 4)
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def setdat(self, dat):
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self.RS = 1
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self.send(dat)
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self.send(dat << 4)
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def clear(self):
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self.setcmd(1)
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def backlight(self, on):
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if on:
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self.BK = 0x08
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else:
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self.BK = 0
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self.setdat(0)
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def on(self):
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self.setcmd(0x0C)
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def off(self):
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self.setcmd(0x08)
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def char(self, ch, x=-1, y=0):
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if x >= 0:
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a = 0x80
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if y > 0:
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a = 0xC0
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a += x
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self.setcmd(a)
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self.setdat(ch)
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def puts(self, s, x=0, y=0):
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if len(s) > 0:
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self.char(ord(s[0]), x, y)
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for i in range(1, len(s)):
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self.char(ord(s[i]))
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def mixly_puts(self, s, x=1, y=1):
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s = str(s)
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x = x - 1
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y = y - 1
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self.puts(self, s, x, y)
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def mixly_puts_two_lines(self, line1, line2):
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line1 = str(line1)
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line2 = str(line2)
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self.puts(self, line1, 0, 0)
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self.puts(self, line2, 0, 1)
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