Fixed MAC reverse byte order issue within the ESP32SPI library as it was originally echoing the MAC address in reverse byte order. Added portable MAC function call within WSGISERVER.PY example to properly echo MAC address when running example.

Author: mytechnotalent

adafruit_esp32spi/adafruit_esp32spi.py

@@ -337,7 +337,9 @@ def MAC_address(self):        # pylint: disable=invalid-name
         if self._debug:
             print("MAC address")
         resp = self._send_command_get_response(_GET_MACADDR_CMD, [b'\xFF'])
-        return resp[0]
+        new_resp = bytearray(resp[0])
+        new_resp = reversed(new_resp)
+        return new_resp
 
     def start_scan_networks(self):
         """Begin a scan of visible access points. Follow up with a call
@@ -759,4 +761,4 @@ def set_analog_write(self, pin, analog_value):
         resp = self._send_command_get_response(_SET_ANALOG_WRITE_CMD,
                                                ((pin,), (value,)))
         if resp[0][0] != 1:
-            raise RuntimeError("Failed to write to pin")
+            raise RuntimeError("Failed to write to pin")

examples/server/esp32spi_wsgiserver.py

@@ -39,6 +39,8 @@
 spi = busio.SPI(board.SCK, board.MOSI, board.MISO)
 esp = adafruit_esp32spi.ESP_SPIcontrol(spi, esp32_cs, esp32_ready, esp32_reset) # pylint: disable=line-too-long
 
+print("MAC addr:", [hex(i) for i in esp.MAC_address])
+
 """Use below for Most Boards"""
 status_light = neopixel.NeoPixel(board.NEOPIXEL, 1, brightness=0.2) # Uncomment for Most Boards
 """Uncomment below for ItsyBitsy M4"""
@@ -212,4 +214,4 @@ def led_color(environ): # pylint: disable=unused-argument
     except (ValueError, RuntimeError) as e:
         print("Failed to update server, restarting ESP32\n", e)
         wifi.reset()
-        continue
+        continue