[Digi-Key Follow me Issue 3] Task 4: Connect to WiFi network | Synchronize network time

alanlan86

[Digi-Key Follow me Issue 3] Task 4: Connect to WiFi network | Synchronize network time [Copy link]

 

<i class="pstatus">This post was last edited by alanlan86 on 2023-11-19 08:25</i> #Preparation- Set up the Thonny IDE development environment and flash the Micropython firmware- Prepare an ESP32-C3 XIAO development board - An SSD1306 OLED screen, connect I2C (SCL=7, SDA=6) through the expansion port #Software- Call the network library to scan wifi and connect to the network- Call urequests to parse the json returned by the world time interface to obtain the date and time- About world time For an introduction to the API, see: [World Time API](http://worldtimeapi.org/pages/examples "World Time API") - Call the OLED to display process information - Call again after 5 seconds to request the time and refresh the OLED interface display```python from machine import Pin, SoftI2C import ssd1306 from time import sleep import time import network import urequests import ujson # ESP32 Pin assignment i2c = SoftI2C(scl=Pin(7), sda=Pin(6)) # Adjust the Pin numbers based on your connections oled_width = 128 oled_height = 64 oled = ssd1306.SSD1306_I2C(oled_width, oled_height, i2c) oled.fill(0) oled.text("Starting up...", 0, 0)#Board startup oled.show() station = network.WLAN(network.STA_IF) station.active(True) # Network settings wifi_ssid = "SSID-XXXX"#Replace with your SSID wifi_password = "PASSWORD-XXXXX"#Replace with your WIFI password url = "http://worldtimeapi.org/api/timezone/Asia/Shanghai" print("Scanning for WiFi networks, please wait...") authmodes = ['Open', 'WEP', 'WPA-PSK' 'WPA2-PSK4', 'WPA/WPA2-PSK'] for (ssid, bssid, channel, RSSI, authmode, hidden) in station.scan(): print("* {:s}".format(ssid)) print(" - Channel: {}".format(channel)) print(" - RSSI: {}".format(RSSI)) print(" - BSSID: {:02x}:{:02x}:{:02x}:{:02x}:{:02x}:{:02x}".format(*bssid)) print() # Continually try to connect to WiFi access point while not station.isconnected(): # Try to connect to WiFi access point print("Connecting...") station.connect(wifi_ssid, wifi_password) time.sleep(10) # Display connection details print("Connected!") print("My IP Address:", station.ifconfig()[0]) retry=0 while True: # Perform HTTP GET request on a non-SSL web response = urequests.get(url) # Check if the request was successful if response.status_code == 200: # Parse the JSON response data = ujson.loads(response.text) # Extract the "datetime" field for Shanghai ny_datetime = data["datetime "] # Split the date and time components date_part, time_part = ny_datetime.split("T") # Get only the first two decimal places of the time time_part = time_part[:8] # Get the timezone timezone = data["timezone"] # Clear the OLED display oled.fill(0) # Display the Shanghai date and time on separate lines oled.text("Shanghai Date:", 0, 0) oled.text(date_part, 0, 10) oled.text(" Shanghai Time:", 0,20) oled.text(time_part, 0, 30) oled.text("Timezone:", 0, 40) oled.text(timezone, 0, 50) # Update the display oled.show() retry = 0 else: retry = retry+1 if(retry > 3): retry = 0 oled.text("Failed to get the time for Shanghai!") # Update the display oled.show() time.sleep_ms(5000) ``` #调试 <ignore_js_op> <img style="cursor:pointer;" id="aimg_754417" aid="754417" src="/bbs/static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="//bbs.eeworld.com.cn/data/attachment/forum/202311/19/081550a7dvpxdsaa3pc77v.jpg" file="//bbs.eeworld.com.cn/data/attachment/forum/202311/19/081550a7dvpxdsaa3pc77v.jpg" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_754417_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>2.jpg</strong> <em class="xg1">(516.78 KB, downloads: 0)</em></p> <p> <a href="javascript:;" class="loginf" >download attach</a> <a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_754417" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=754417&handlekey=savephoto_754417">save to album</a> </p> <p class="xg1 y">2023-11-19 08:15 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> <div id="player_f235bc4338e5c41ee529aebf66939b3b0" class="localvideo-box"></div><div class="localvideo-title">任务4联网同步时间</div><br/>

rhi

Thanks for sharing!