---
disqus: ahb0222
GA : G-VF9ZT413CG
---
# Micropython NTP指針時鐘 OLED SSD1306
> [color=#40f1ef][name=LHB阿好伯, 2022/06/04][:earth_africa:](https://www.facebook.com/LHB0222/)
###### tags: `Micropython` `創客`

[TOC]


from machine import Pin, I2C,  SoftI2C
import ssd1306
import time
import gfx
import math

'''
網路及NTP設定
'''
from machine import RTC
rtc = RTC()
import ntptime
from wifi_manager import WifiManager
# 初始化
wm = WifiManager()
# 可以自定義AP的SSID和密碼：
wm = WifiManager('AHB', '12345678')
wm.connect()
def tw_ntp(host='clock.stdtime.gov.tw', must=False):
  ntptime.NTP_DELTA = 3155644800 # UTC+8 的 magic number
  ntptime.host = host
  count = 1
  if must:
    count = 100
  for _ in range(count):
    try:
      ntptime.settime()
    except:
      time.sleep(1)
      continue
    else:
      return True
  return False

tw_ntp()

# using default address 0x3C
# i2c = I2C(sda=Pin(23), scl=Pin(19)) #硬體 I2C
i2c = SoftI2C(scl=Pin(22), sda=Pin(21), freq=400000)  #慧手科技套件腳位
#i2c = SoftI2C(scl=Pin(19), sda=Pin(23), freq=400000)  # 軟體 I2C

display = ssd1306.SSD1306_I2C(128, 64, i2c)
graphics = gfx.GFX(128, 64, display.pixel)
display.invert(0)      # 螢幕顏色正常
#display.invert(1)      # 螢幕顏色反轉
# display.rotate(True)   #  螢幕旋轉180度
display.rotate(False)  #  螢幕旋轉0度
display.text('Hello, World~~~', 0, 0, 1)
display.show() #  螢幕顯示


display.fill(0)                         # 填充螢幕  0 = 全黑, 1 = 全亮
time.sleep(1)
display.show() #  螢幕顯示

graphics.circle(31, 31, 29, 1) #circle(x0, y0, radius半徑, color)  （x0, y0） 座標表示圓的中心
display.show()
#刻度
for i in range(1,13):
    angle = i * 30
    graphics.line(31+math.trunc(27*math.sin(math.radians(angle))),
                  31-math.trunc(27*math.cos(math.radians(angle))),
                  31+math.trunc(29*math.sin(math.radians(angle))),
                  31-math.trunc(29*math.cos(math.radians(angle))), 1)  #line(x0, y0, x1, y1, color) 
    display.show()
#fill_circle（x0, y0, radius, color） #填充圓
graphics.circle(31, 31, 1, 1)
display.show()

while True:
    if(wm.is_connected() == True):
        new_time = rtc.datetime()
        print("{h} : {m} : {s}".format(h=new_time[4]%12, m = new_time[5], s =new_time[6]))
        time.sleep_ms(950)
        graphics.circle(31, 31, 29, 1)
        #時針
        h_angle = new_time[4]%12 * 30
        graphics.line(31, 31,
                  31+math.trunc(15*math.sin(math.radians(h_angle))),
                  31-math.trunc(15*math.cos(math.radians(h_angle))), 1)
        display.show()
        
        #分針
        m_angle = new_time[5] * 360/60
        graphics.line(31, 31,
                  31+math.trunc(25*math.sin(math.radians(m_angle))),
                  31-math.trunc(25*math.cos(math.radians(m_angle))), 1)
        display.show()
        display.fill_rect(53, 56, 17, 10, 0)
        display.text(str(new_time[6]), 53, 56, 1)    # 繪製文字(test, x, y, colour) colour=1為亮, 0 為滅
        display.show() #  螢幕顯示

        if new_time[6] == 59:
            graphics.fill_circle(31, 31, 25, 0) #填充圓
            graphics.circle(31, 31, 1, 1)
            graphics.circle(31, 31, 29, 1)


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