aitendo_tm4d595_4digit_led_clock.py

# -*- coding: utf-8 -*-

# aitendoの"4-Bit LED Digital Tube Module" 4桁7セグLEDモジュール[TM4D595]を
# raspbery pi zeroで駆動するプログラム
# 現在時刻を表示する

import RPi.GPIO as GPIO
import time
from datetime import datetime


PIN_SCLK = 17
PIN_RCLK = 27
PIN_DI = 22

CHAR = {
    0 : 0xC0, #0
    1 : 0xF9, #1
    2 : 0xA4, #2
    3 : 0xB0, #3
    4 : 0x99, #4
    5 : 0x92, #5
    6 : 0x82, #6
    7 : 0xF8, #7
    8 : 0x80, #8
    9 : 0x90, #9
    10 : 0x88, #A
    11 : 0x83, #b
    12 : 0xC6, #C
    13 : 0xA1, #d
    14 : 0x86, #E
    15 : 0x8E, #F
    16 : 0xC2, #G
    17 : 0x89, #H
    18 : 0xF9, #I
    19 : 0xF1, #J
    20 : 0xC3, #L
    21 : 0xA9, #n
    22 : 0xC0, #O
    23 : 0x8C, #P
    24 : 0x98, #q
    25 : 0x92, #S
    26 : 0xC1, #U
    27 : 0x91, #Y
    28 : 0xFE, #hight -
}

def setup():
    GPIO.setmode(GPIO.BCM)
    GPIO.setup(PIN_SCLK,GPIO.OUT)
    GPIO.setup(PIN_RCLK,GPIO.OUT)
    GPIO.setup(PIN_DI,GPIO.OUT)


def clock():
    while True:
        now = datetime.now().strftime("%H%M")
        digit4(int(now),10)
        time.sleep(100/1000) # 適当に 100ms に一回更新


def digit4(val, repeat):
    n1 = val % 10
    n2 = (val % 100) / 10
    n3 = (val % 1000) / 100
    n4 = (val % 10000) / 1000
    for i in range(repeat):
        send_with_port(CHAR[n1], 0b0001)
        if n2 >= 0:
            send_with_port(CHAR[n2], 0b0010)
        if n3 >= 0:
            send_with_port(CHAR[n3], 0b0100)
        if n4 >= 0:
            send_with_port(CHAR[n4], 0b1000)


def send_with_port(val, port):
    send(val)
    send(port)
    set_rclk(0)
    set_rclk(1)


def send(val):
    for i in range(8,0,-1):
        if (val & 0x80):
            set_dio(1)
        else:
            set_dio(0)
        val = val << 1
        set_sclk(0)
        set_sclk(1)


def set_dio(val):
    set_pin(PIN_DI, val)
    #print("DIO:" + str(val))

def set_sclk(val):
    set_pin(PIN_SCLK, val)
    #print("SCLK:" + str(val))

def set_rclk(val):
    set_pin(PIN_RCLK, val)
    #print("RCLK:" + str(val))


def set_pin(pin, val):
    if val == 0:
        GPIO.output(pin, False)
    else:
        GPIO.output(pin, True)


setup()

clock()

GPIO.cleanup()

aitendo_tm4d595_4digit_led_test.py

# -*- coding: utf-8 -*-

# aitendoの"4-Bit LED Digital Tube Module" 4桁7セグLEDモジュール[TM4D595]を
# raspbery pi zeroで駆動するプログラム

import RPi.GPIO as GPIO
import time
from datetime import datetime


PIN_SCLK = 17
PIN_RCLK = 27
PIN_DI = 22

CHAR = {
    0 : 0xC0, #0
    1 : 0xF9, #1
    2 : 0xA4, #2
    3 : 0xB0, #3
    4 : 0x99, #4
    5 : 0x92, #5
    6 : 0x82, #6
    7 : 0xF8, #7
    8 : 0x80, #8
    9 : 0x90, #9
    10 : 0x88, #A
    11 : 0x83, #b
    12 : 0xC6, #C
    13 : 0xA1, #d
    14 : 0x86, #E
    15 : 0x8E, #F
    16 : 0xC2, #G
    17 : 0x89, #H
    18 : 0xF9, #I
    19 : 0xF1, #J
    20 : 0xC3, #L
    21 : 0xA9, #n
    22 : 0xC0, #O
    23 : 0x8C, #P
    24 : 0x98, #q
    25 : 0x92, #S
    26 : 0xC1, #U
    27 : 0x91, #Y
    28 : 0xFE, #hight -
}

def setup():
    GPIO.setmode(GPIO.BCM)
    GPIO.setup(PIN_SCLK,GPIO.OUT)
    GPIO.setup(PIN_RCLK,GPIO.OUT)
    GPIO.setup(PIN_DI,GPIO.OUT)

def set_pin(pin, val):
    if val == 0:
        GPIO.output(pin, False)
    else:
        GPIO.output(pin, True)

def set_dio(val):
    set_pin(PIN_DI, val)
    #print("DIO:" + str(val))

def set_sclk(val):
    set_pin(PIN_SCLK, val)
    #print("SCLK:" + str(val))

def set_rclk(val):
    set_pin(PIN_RCLK, val)
    #print("RCLK:" + str(val))

def send(val):
    for i in range(8,0,-1):
        if (val & 0x80):
            set_dio(1)
        else:
            set_dio(0)
        val = val << 1
        set_sclk(0)
        set_sclk(1)

def send_with_port(val, port):
    send(val)
    send(port)
    set_rclk(0)
    set_rclk(1)

def digit4(val, repeat):
    n1 = val % 10
    n2 = (val % 100) / 10
    n3 = (val % 1000) / 100
    n4 = (val % 10000) / 1000
    for i in range(repeat):
        send_with_port(CHAR[n1], 0b0001)
        if n2 >= 0:
            send_with_port(CHAR[n2], 0b0010)
        if n3 >= 0:
            send_with_port(CHAR[n3], 0b0100)
        if n4 >= 0:
            send_with_port(CHAR[n4], 0b1000)

def digit_all(val):
    send_with_port(CHAR[val], 0b1111)

def digit(val):
    send_with_port(val, 0b0001)



setup()

def segment_test():
    list = [0b1, 0b10, 0b100, 0b1000, 0b10000, 0b100000, 0b1000000, 0b10000000]
    #             _     _      _       _       _         _           _
    #       |_|  |_    |_|    |_|     |_|      _|       | |         |_|
    #       |_|  |_|   |_     | |      _|     |_|       |_|         |_|
    #
    #  _
    # |_|  0b0011100
    #
    #
    #
    #  _   0b0100011
    # |_|
    #
    #  _
    # |_|
    # |_|
    #

    for i in list:
        digit(i)
        time.sleep(1)
    #
    #digit(0b1111111)

segment_test()

GPIO.cleanup()