microbit-lib
Four Digit Display TM1637 drive
Four Digit Display is a Module with four 7-segment LED, it can show number. It has TM1637 chip inside, control with a two line interface.
This drive base on mcauser’s TM1637 LED driver:
https://github.com/mcauser/micropython-tm1637
Some TM1637 module need 5V power supply.
API
-
TM1637(clk, dio, intensity=7, number = 4)
initial TM1637 display.
clk, clock singal.
dio, data input/output signal.
intensity, display intensity.
number, LED number. -
intensity(val=None)
set display intensity.
val is intensity will be set, it can be [0 - 8]. if dat is zero, display will be turn off.
if not dat given, it will return current intensity. -
on()
turn on display -
off()
turn off display -
clear()
clear content of the display -
shownum(num)
show a interger number in display. -
showhex(num)
show a hex number. -
showDP(bit = 1, show = True)
show or hide dot piont in give bit
bit is dot piont position, [0 - 3]
show, True will show DP, other will hide it
example
from microbit import *
import TM1637
tm=TM1637.TM1637(dio=pin13,clk=pin14)
n = 0
while 1:
tm.shownum(n)
n += 1
time.sleep_ms(1000)
From microbit/micropython Chinese community.
www.micropython.org.cn