1  import time
 2  import board
 3  import busio
 4  from digitalio import DigitalInOut
 5  from adafruit_esp32spi import adafruit_esp32spi
 6  from adafruit_ntp import NTP
 7  
 8  # If you are using a board with pre-defined ESP32 Pins:
 9  esp32_cs = DigitalInOut(board.ESP_CS)
10  esp32_ready = DigitalInOut(board.ESP_BUSY)
11  esp32_reset = DigitalInOut(board.ESP_RESET)
12  
13  # If you have an externally connected ESP32:
14  # esp32_cs = DigitalInOut(board.D9)
15  # esp32_ready = DigitalInOut(board.D10)
16  # esp32_reset = DigitalInOut(board.D5)
17  
18  spi = busio.SPI(board.SCK, board.MOSI, board.MISO)
19  esp = adafruit_esp32spi.ESP_SPIcontrol(spi, esp32_cs, esp32_ready, esp32_reset)
20  
21  print("Connecting to AP...")
22  while not esp.is_connected:
23      try:
24          esp.connect_AP(b"WIFI_SSID", b"WIFI_PASS")
25      except RuntimeError as e:
26          print("could not connect to AP, retrying: ", e)
27          continue
28  
29  # Initialize the NTP object
30  ntp = NTP(esp)
31  
32  # Fetch and set the microcontroller's current UTC time
33  # keep retrying until a valid time is returned
34  while not ntp.valid_time:
35      ntp.set_time()
36      print("Failed to obtain time, retrying in 5 seconds...")
37      time.sleep(5)
38  
39  # Get the current time in seconds since Jan 1, 1970
40  current_time = time.time()
41  print("Seconds since Jan 1, 1970: {} seconds".format(current_time))
42  
43  # Convert the current time in seconds since Jan 1, 1970 to a struct_time
44  now = time.localtime(current_time)
45  print(now)
46  
47  # Pretty-parse the struct_time
48  print(
49      "It is currently {}/{}/{} at {}:{}:{} UTC".format(
50          now.tm_mon, now.tm_mday, now.tm_year, now.tm_hour, now.tm_min, now.tm_sec
51      )
52  )