microbit-lib
I2C LCD1602
link
| microbit | LCD1602 |
|---|---|
| 3V | VCC |
| GND | GND |
| P19/SCL | SCL |
| P20/SDA | SDA |
internal signal
| LCD1602 | PCF8574A |
|---|---|
| RS | P0 |
| RW | P1 |
| E | P2 |
| BackLight | P3 |
| Dat | P4-P7 |
I2C Address
| PCF8574 | PCF8574A |
|---|---|
| 0x27 | 0x3F |
API
-
on()
turn on LCD -
off()
turn off LCD -
clear()
clear display -
backlight(on)
0 turn of backlight
1 turn on backlight -
char(ch, x, y)
show a character in given position
x, 0-15
y, 0-1 -
puts(s, x, y)
show a string in given position
x, 0-15
y, 0-1
example
copy mb_i2c_lcd1602.py to microbit using mu or copy file content to your python file first.
from mb_i2c_lcd1602 import *
l=LCD1620()
l.puts('Hello microbit!')
From microbit/micropython Chinese community.
www.micropython.org.cn