92 lines
3.3 KiB
Python
92 lines
3.3 KiB
Python
# Example code implementing WPA2 Enterprise mode
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#
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# This code requires firmware version 1.3.0, or newer, running
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# on the ESP32 WiFi co-processor. The latest firmware, and wiring
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# info if you are using something other than a PyPortal, can be found
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# in the Adafruit Learning System:
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# https://learn.adafruit.com/adding-a-wifi-co-processor-to-circuitpython-esp8266-esp32/firmware-files#esp32-only-spi-firmware-3-8
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import re
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import time
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import board
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import busio
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from digitalio import DigitalInOut
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import adafruit_esp32spi.adafruit_esp32spi_socket as socket
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from adafruit_esp32spi import adafruit_esp32spi
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import adafruit_requests as requests
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# Version number comparison code. Credit to gnud on stackoverflow
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# (https://stackoverflow.com/a/1714190), swapping out cmp() to
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# support Python 3.x and thus, CircuitPython
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def version_compare(version1, version2):
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def normalize(v):
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return [int(x) for x in re.sub(r'(\.0+)*$','', v).split(".")]
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return (normalize(version1) > normalize(version2)) - (normalize(version1) < normalize(version2))
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print("ESP32 SPI WPA2 Enterprise test")
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# ESP32 setup
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# If your board does define the three pins listed below,
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# you can set the correct pins in the second block
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try:
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esp32_cs = DigitalInOut(board.ESP_CS)
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esp32_ready = DigitalInOut(board.ESP_BUSY)
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esp32_reset = DigitalInOut(board.ESP_RESET)
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except AttributeError:
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esp32_cs = DigitalInOut(board.D9)
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esp32_ready = DigitalInOut(board.D10)
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esp32_reset = DigitalInOut(board.D5)
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spi = busio.SPI(board.SCK, board.MOSI, board.MISO)
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esp = adafruit_esp32spi.ESP_SPIcontrol(spi, esp32_cs, esp32_ready, esp32_reset)
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requests.set_socket(socket, esp)
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if esp.status == adafruit_esp32spi.WL_IDLE_STATUS:
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print("ESP32 found and in idle mode")
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# Get the ESP32 fw version number, remove trailing byte off the returned bytearray
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# and then convert it to a string for prettier printing and later comparison
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firmware_version = ''.join([chr(b) for b in esp.firmware_version[:-1]])
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print("Firmware vers.", firmware_version)
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print("MAC addr:", [hex(i) for i in esp.MAC_address])
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# WPA2 Enterprise support was added in fw ver 1.3.0. Check that the ESP32
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# is running at least that version, otherwise, bail out
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assert version_compare(firmware_version, "1.3.0") >= 0, (
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"Incorrect ESP32 firmware version; >= 1.3.0 required.")
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# Set up the SSID you would like to connect to
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# Note that we need to call wifi_set_network prior
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# to calling wifi_set_enable.
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esp.wifi_set_network(b'YOUR_SSID_HERE')
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# If your WPA2 Enterprise network requires an anonymous
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# identity to be set, you may set that here
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esp.wifi_set_entidentity(b'')
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# Set the WPA2 Enterprise username you'd like to use
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esp.wifi_set_entusername(b'MY_USERNAME')
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# Set the WPA2 Enterprise password you'd like to use
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esp.wifi_set_entpassword(b'MY_PASSWORD')
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# Once the network settings have been configured,
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# we need to enable WPA2 Enterprise mode on the ESP32
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esp.wifi_set_entenable()
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# Wait for the network to come up
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print("Connecting to AP...")
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while not esp.is_connected:
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print(".", end = "")
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time.sleep(2)
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print("")
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print("Connected to", str(esp.ssid, 'utf-8'), "\tRSSI:", esp.rssi)
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print("My IP address is", esp.pretty_ip(esp.ip_address))
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print("IP lookup adafruit.com: %s" % esp.pretty_ip(esp.get_host_by_name("adafruit.com")))
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print("Ping google.com: %d ms" % esp.ping("google.com"))
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print("Done!")
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