from machine import Pin,I2C
from utime import sleep
rs=0x01
rw=0x02
e=0x04
bl=0x08
i2c = I2C(0, scl=Pin(1), sda=Pin(0), freq=400_000)
add=i2c.scan()
print(add)
addlcd=add[0] # lcd address
def cmd_wrt(data):
data1=data&0xf0
i2c.writeto(addlcd,bytes([data1|bl]))
sleep(0.001)
i2c.writeto(addlcd,bytes([data1|e|bl]))
sleep(0.001)
i2c.writeto(addlcd,bytes([data1|bl]))
sleep(0.001)
data1=(data&0x0f)<<4
i2c.writeto(addlcd,bytes([data1|bl]))
sleep(0.001)
i2c.writeto(addlcd,bytes([data1|e|bl]))
sleep(0.001)
i2c.writeto(addlcd,bytes([data1|bl]))
sleep(0.001)
def data_wrt(data):
data1=data&0xf0
i2c.writeto(addlcd,bytes([data1|rs|bl]))
sleep(0.001)
i2c.writeto(addlcd,bytes([data1|rs|e|bl]))
sleep(0.001)
i2c.writeto(addlcd,bytes([data1|rs|bl]))
sleep(0.001)
data1=(data&0x0f)<<4
i2c.writeto(addlcd,bytes([data1|rs|bl]))
sleep(0.001)
i2c.writeto(addlcd,bytes([data1|rs|e|bl]))
sleep(0.001)
i2c.writeto(addlcd,bytes([data1|rs|bl]))
sleep(0.001)
def start_lcd():
cmd_wrt(0x02)
sleep(0.01)
cmd_wrt(0x28)
sleep(0.01)
cmd_wrt(0x0c)
sleep(0.01)
cmd_wrt(0x01)
sleep(0.01)
cmd_wrt(0x80)
sleep(0.01)
def str_wrt(ayat):
for i in ayat:
data_wrt(ord(i))
def zfl(s, width):
return '{:0>{w}}'.format(s, w=width)
def zfl1(s, width):
return '{: >{w}}'.format(s, w=width)
start_lcd()
pico:GP0
pico:GP1
pico:GND.1
pico:GP2
pico:GP3
pico:GP4
pico:GP5
pico:GND.2
pico:GP6
pico:GP7
pico:GP8
pico:GP9
pico:GND.3
pico:GP10
pico:GP11
pico:GP12
pico:GP13
pico:GND.4
pico:GP14
pico:GP15
pico:GP16
pico:GP17
pico:GND.5
pico:GP18
pico:GP19
pico:GP20
pico:GP21
pico:GND.6
pico:GP22
pico:RUN
pico:GP26
pico:GP27
pico:GND.7
pico:GP28
pico:ADC_VREF
pico:3V3
pico:3V3_EN
pico:GND.8
pico:VSYS
pico:VBUS
lcd1:GND
lcd1:VCC
lcd1:SDA
lcd1:SCL