diff --git a/Arduino_Nano_RP2040_Connect/arduino_nano_rp2040_connect_blink/code.py b/Arduino_Nano_RP2040_Connect/arduino_nano_rp2040_connect_blink/code.py
index aaa8b926e..d7aa53929 100644
--- a/Arduino_Nano_RP2040_Connect/arduino_nano_rp2040_connect_blink/code.py
+++ b/Arduino_Nano_RP2040_Connect/arduino_nano_rp2040_connect_blink/code.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2021 Liz Clark for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 import time
 import board
 from digitalio import DigitalInOut, Direction
diff --git a/Arduino_Nano_RP2040_Connect/arduino_nano_rp2040_connect_button/code.py b/Arduino_Nano_RP2040_Connect/arduino_nano_rp2040_connect_button/code.py
index 65b99bd99..ba47b6da5 100644
--- a/Arduino_Nano_RP2040_Connect/arduino_nano_rp2040_connect_button/code.py
+++ b/Arduino_Nano_RP2040_Connect/arduino_nano_rp2040_connect_button/code.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2021 Liz Clark for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 import time
 import board
 from digitalio import DigitalInOut, Direction, Pull
diff --git a/Arduino_Nano_RP2040_Connect/arduino_nano_rp2040_connect_mic/code.py b/Arduino_Nano_RP2040_Connect/arduino_nano_rp2040_connect_mic/code.py
index 7b37c5ecf..5beabda05 100644
--- a/Arduino_Nano_RP2040_Connect/arduino_nano_rp2040_connect_mic/code.py
+++ b/Arduino_Nano_RP2040_Connect/arduino_nano_rp2040_connect_mic/code.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2021 Liz Clark for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 '''Adapted from the example code DM_Mic_Sound_Level_Plot.py
 https://github.com/adafruit/Adafruit_Learning_System_Guides/
 blob/master/PDM_Microphone/PDM_Mic_Sound_Level_Plot.py '''
diff --git a/Arduino_Nano_RP2040_Connect/arduino_nano_rp2040_connect_wifi/code.py b/Arduino_Nano_RP2040_Connect/arduino_nano_rp2040_connect_wifi/code.py
index 752d49834..8c5063efc 100644
--- a/Arduino_Nano_RP2040_Connect/arduino_nano_rp2040_connect_wifi/code.py
+++ b/Arduino_Nano_RP2040_Connect/arduino_nano_rp2040_connect_wifi/code.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2021 Liz Clark for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 '''Adapted from the Adafruit_CircuitPython_ESP32SPI
 library example esp32spi_simpletest.py:
 https://github.com/adafruit/Adafruit_CircuitPython_ESP32SPI/
diff --git a/AtariFruit_Joystick/AtariFruit_Joystick.ino b/AtariFruit_Joystick/AtariFruit_Joystick.ino
index 36f4aa4f0..039642270 100644
--- a/AtariFruit_Joystick/AtariFruit_Joystick.ino
+++ b/AtariFruit_Joystick/AtariFruit_Joystick.ino
@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2017 John Edgar Park for Adafruit Industries
+//
+// SPDX-License-Identifier: MIT
+
 /*********************************************************************
 AtariFruit 2600 Joystick
 by John Park for Adafruit
@@ -12,10 +16,10 @@ by Allen C. Huffman (alsplace@pobox.com)
  http://subethasoftware.com/2013/01/04/teensy-2-0-icade-source-code/
 
 *********************************************************************/
-#include <bluefruit.h>
+#include <bluefruit.h>
 
-BLEDis bledis;
-BLEHidAdafruit blehid;
+BLEDis bledis;
+BLEHidAdafruit blehid;
 
 #define VERSION "0.1"
 #define LED_ON
@@ -73,15 +77,15 @@ See: http://old.pinouts.ru/Inputs/JoystickAtari2600_pinout.shtml
 // #define DI_PIN_START  1    // First I/O pin.
 // #define DI_PIN_END    20   // Last I/O pin.
 
-byte myPins[DI_PIN_COUNT] =  {UP_PIN, DOWN_PIN, LEFT_PIN, RIGHT_PIN, BTN1_PIN,
+byte myPins[DI_PIN_COUNT] =  {UP_PIN, DOWN_PIN, LEFT_PIN, RIGHT_PIN, BTN1_PIN,
   BTN2_PIN, BTN3_PIN, BTN4_PIN,
   BTN5_PIN, BTN6_PIN, BTN7_PIN, BTN8_PIN};
 
-char iCadeKeymap[][DI_PIN_COUNT] =  {UP_KEYS, DOWN_KEYS, LEFT_KEYS, RIGHT_KEYS,
+char iCadeKeymap[][DI_PIN_COUNT] =  {UP_KEYS, DOWN_KEYS, LEFT_KEYS, RIGHT_KEYS,
   BTN1_KEYS, BTN2_KEYS, BTN3_KEYS, BTN4_KEYS,
   BTN5_KEYS, BTN6_KEYS, BTN7_KEYS, BTN8_KEYS};
 
-char iCadeDesc[][DI_PIN_COUNT] =  {"Up", "Down", "Left", "Right", "Btn1",
+char iCadeDesc[][DI_PIN_COUNT] =  {"Up", "Down", "Left", "Right", "Btn1",
  "Btn2", "Btn3", "Btn4",
   "Btn5", "Btn6", "Btn7", "Btn8"};
 
@@ -114,36 +118,36 @@ void setup()
 
   // Initialize the serial port.
   Serial.begin(115200);
-  Serial.println();
-  Serial.println("Go to your phone's Bluetooth settings to pair your device");
-  Serial.println("then open an application that accepts keyboard input");
-  Bluefruit.begin();
-  // Set max power. Accepted values are: -40, -30, -20, -16, -12, -8, -4, 0, 4
-  Bluefruit.setTxPower(4);
-  Bluefruit.setName("AtariFruitJoystick");
-
-  // Configure and Start Device Information Service
-  bledis.setManufacturer("Adafruit Industries");
-  bledis.setModel("Atari Fruit Joystick 52");
-  bledis.begin();
-
-  /* Start BLE HID
-   * Note: Apple requires BLE device must have min connection interval >= 20m
-   * ( The smaller the connection interval the faster we could send data).
-   * However for HID and MIDI device, Apple could accept min connection interval
-   * up to 11.25 ms. Therefore BLEHidAdafruit::begin() will try to set the min and max
-   * connection interval to 11.25  ms and 15 ms respectively for best performance.
-   */
-  blehid.begin();
-
-  /* Set connection interval (min, max) to your perferred value.
-   * Note: It is already set by BLEHidAdafruit::begin() to 11.25ms - 15ms
-   * min = 9*1.25=11.25 ms, max = 12*1.25= 15 ms
-   */
-  /* Bluefruit.setConnInterval(9, 12); */
-
-  // Set up and start advertising
-  startAdv();
+  Serial.println();
+  Serial.println("Go to your phone's Bluetooth settings to pair your device");
+  Serial.println("then open an application that accepts keyboard input");
+  Bluefruit.begin();
+  // Set max power. Accepted values are: -40, -30, -20, -16, -12, -8, -4, 0, 4
+  Bluefruit.setTxPower(4);
+  Bluefruit.setName("AtariFruitJoystick");
+
+  // Configure and Start Device Information Service
+  bledis.setManufacturer("Adafruit Industries");
+  bledis.setModel("Atari Fruit Joystick 52");
+  bledis.begin();
+
+  /* Start BLE HID
+   * Note: Apple requires BLE device must have min connection interval >= 20m
+   * ( The smaller the connection interval the faster we could send data).
+   * However for HID and MIDI device, Apple could accept min connection interval
+   * up to 11.25 ms. Therefore BLEHidAdafruit::begin() will try to set the min and max
+   * connection interval to 11.25  ms and 15 ms respectively for best performance.
+   */
+  blehid.begin();
+
+  /* Set connection interval (min, max) to your perferred value.
+   * Note: It is already set by BLEHidAdafruit::begin() to 11.25ms - 15ms
+   * min = 9*1.25=11.25 ms, max = 12*1.25= 15 ms
+   */
+  /* Bluefruit.setConnInterval(9, 12); */
+
+  // Set up and start advertising
+  startAdv();
 
   // Docs say this isn't necessary for Uno.
   //while(!Serial) { }
@@ -184,37 +188,37 @@ void setup()
 
   Serial.println("Ready.");
 
-}
-
-
-void startAdv(void)
-{
-  // Advertising packet
-  Bluefruit.Advertising.addFlags(BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE);
-  Bluefruit.Advertising.addTxPower();
-  Bluefruit.Advertising.addAppearance(BLE_APPEARANCE_HID_KEYBOARD);
-
-  // Include BLE HID service
-  Bluefruit.Advertising.addService(blehid);
-
-  // There is enough room for the dev name in the advertising packet
-  Bluefruit.Advertising.addName();
-
-  /* Start Advertising
-   * - Enable auto advertising if disconnected
-   * - Interval:  fast mode = 20 ms, slow mode = 152.5 ms
-   * - Timeout for fast mode is 30 seconds
-   * - Start(timeout) with timeout = 0 will advertise forever (until connected)
-   *
-   * For recommended advertising interval
-   * https://developer.apple.com/library/content/qa/qa1931/_index.html
-   */
-  Bluefruit.Advertising.restartOnDisconnect(true);
-  Bluefruit.Advertising.setInterval(32, 244);    // in unit of 0.625 ms
-  Bluefruit.Advertising.setFastTimeout(30);      // number of seconds in fast mode
-  Bluefruit.Advertising.start(0);                // 0 = Don't stop advertising after n seconds
 }
-
+
+
+void startAdv(void)
+{
+  // Advertising packet
+  Bluefruit.Advertising.addFlags(BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE);
+  Bluefruit.Advertising.addTxPower();
+  Bluefruit.Advertising.addAppearance(BLE_APPEARANCE_HID_KEYBOARD);
+
+  // Include BLE HID service
+  Bluefruit.Advertising.addService(blehid);
+
+  // There is enough room for the dev name in the advertising packet
+  Bluefruit.Advertising.addName();
+
+  /* Start Advertising
+   * - Enable auto advertising if disconnected
+   * - Interval:  fast mode = 20 ms, slow mode = 152.5 ms
+   * - Timeout for fast mode is 30 seconds
+   * - Start(timeout) with timeout = 0 will advertise forever (until connected)
+   *
+   * For recommended advertising interval
+   * https://developer.apple.com/library/content/qa/qa1931/_index.html
+   */
+  Bluefruit.Advertising.restartOnDisconnect(true);
+  Bluefruit.Advertising.setInterval(32, 244);    // in unit of 0.625 ms
+  Bluefruit.Advertising.setFastTimeout(30);      // number of seconds in fast mode
+  Bluefruit.Advertising.start(0);                // 0 = Don't stop advertising after n seconds
+}
+
 
 void loop()
 {
@@ -263,7 +267,7 @@ void loop()
 
     // In pin status has changed from our last toggle...
     if (status != digitalStatus[thisPin])
-    {
+    {
       blehid.keyRelease();
       // Remember when it changed, starting debounce mode.
       // If not currently in debounce mode,
@@ -288,7 +292,7 @@ void loop()
               Serial.print(iCadeDesc[thisPin]);
               Serial.print(" pressed  (sending ");
               Serial.print(iCadeKeymap[thisPin][0]);
-              Serial.println(" to iCade).");
+              Serial.println(" to iCade).");
               blehid.keyPress(iCadeKeymap[thisPin][0]);
               //Keyboard.print(iCadeKeymap[thisPin][0]);
               //digitalCounter[thisPin]++;
@@ -301,7 +305,7 @@ void loop()
               Serial.print(iCadeDesc[thisPin]);
               Serial.print(" released (sending ");
               Serial.print(iCadeKeymap[thisPin][1]);
-              Serial.println(" to iCade).");
+              Serial.println(" to iCade).");
               blehid.keyPress(iCadeKeymap[thisPin][1]);
               //Keyboard.print(iCadeKeymap[thisPin][1]);
               if (pinsOn>0) pinsOn--;
@@ -320,9 +324,9 @@ void loop()
       // If we were debouncing, we are no longer debouncing.
       digitalDebounceTime[thisPin] = 0;
     }
-  } // End of (int thisPin=0; thisPin < DI_PIN_COUNT; thisPin++ )
-
-  // Request CPU to enter low-power mode until an event/interrupt occurs
+  } // End of (int thisPin=0; thisPin < DI_PIN_COUNT; thisPin++ )
+
+  // Request CPU to enter low-power mode until an event/interrupt occurs
   waitForEvent();
 }
 
@@ -373,24 +377,24 @@ void showDigitalInputStatus()
   Serial.println("");
 }
 
-/**
- * RTOS Idle callback is automatically invoked by FreeRTOS
- * when there are no active threads. E.g when loop() calls delay() and
- * there is no bluetooth or hw event. This is the ideal place to handle
- * background data.
- *
- * NOTE: FreeRTOS is configured as tickless idle mode. After this callback
- * is executed, if there is time, freeRTOS kernel will go into low power mode.
- * Therefore waitForEvent() should not be called in this callback.
- * http://www.freertos.org/low-power-tickless-rtos.html
- *
- * WARNING: This function MUST NOT call any blocking FreeRTOS API
- * such as delay(), xSemaphoreTake() etc ... for more information
- * http://www.freertos.org/a00016.html
- */
-void rtos_idle_callback(void)
-{
-  // Don't call any other FreeRTOS blocking API()
-  // Perform background task(s) here
+/**
+ * RTOS Idle callback is automatically invoked by FreeRTOS
+ * when there are no active threads. E.g when loop() calls delay() and
+ * there is no bluetooth or hw event. This is the ideal place to handle
+ * background data.
+ *
+ * NOTE: FreeRTOS is configured as tickless idle mode. After this callback
+ * is executed, if there is time, freeRTOS kernel will go into low power mode.
+ * Therefore waitForEvent() should not be called in this callback.
+ * http://www.freertos.org/low-power-tickless-rtos.html
+ *
+ * WARNING: This function MUST NOT call any blocking FreeRTOS API
+ * such as delay(), xSemaphoreTake() etc ... for more information
+ * http://www.freertos.org/a00016.html
+ */
+void rtos_idle_callback(void)
+{
+  // Don't call any other FreeRTOS blocking API()
+  // Perform background task(s) here
 }
-// End of file.
+// End of file.
diff --git a/CPX_Walking_Stick/code.py b/CPX_Walking_Stick/code.py
index 5bb75b58f..8f02b94d4 100644
--- a/CPX_Walking_Stick/code.py
+++ b/CPX_Walking_Stick/code.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2019 Anne Barela for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 # Talking Cane
 # for Adafruit Circuit Playground Express with CircuitPython
 from adafruit_circuitplayground.express import cpx
diff --git a/CircuitPython_Flying_Toasters/code.py b/CircuitPython_Flying_Toasters/code.py
index aec3d8318..f96a9fd27 100644
--- a/CircuitPython_Flying_Toasters/code.py
+++ b/CircuitPython_Flying_Toasters/code.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2019 Dave Astels for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 """
 Continuously scroll randomly generated After Dark style toasters.
 Designed for an ItsyBitsy M4 Express and a 1.3" 240x240 TFT
diff --git a/CircuitPython_TVBGone/cpx_main/code.py b/CircuitPython_TVBGone/cpx_main/code.py
index 24c151ead..fab8434ed 100644
--- a/CircuitPython_TVBGone/cpx_main/code.py
+++ b/CircuitPython_TVBGone/cpx_main/code.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2018 Limor Fried for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 import array
 import time
 
diff --git a/CircuitPython_TVBGone/gemma_main/code.py b/CircuitPython_TVBGone/gemma_main/code.py
index c5c8bb8d9..b8feaf0eb 100644
--- a/CircuitPython_TVBGone/gemma_main/code.py
+++ b/CircuitPython_TVBGone/gemma_main/code.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2018 John Edgar Park for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 # Gemma M0 version of TVBgone!
 import array
 import time
diff --git a/Crickit_Exhibit/code.py b/Crickit_Exhibit/code.py
index 34b921806..71d758d0d 100644
--- a/Crickit_Exhibit/code.py
+++ b/Crickit_Exhibit/code.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2019 Dano Wall for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 """
 Crickit Exhibit
 Project by Dano Wall and Isaac Wellish
diff --git a/Grand_Central_Soundboard/code.py b/Grand_Central_Soundboard/code.py
index 9ee4c3d3a..e2dc02c3d 100644
--- a/Grand_Central_Soundboard/code.py
+++ b/Grand_Central_Soundboard/code.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2019 Anne Barela for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 import time
 import os
 import digitalio
diff --git a/Lucio_Blaster_2020/code.py b/Lucio_Blaster_2020/code.py
index 31cff4ac1..82b5a97e3 100644
--- a/Lucio_Blaster_2020/code.py
+++ b/Lucio_Blaster_2020/code.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2020 John Park for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 # Lucio 2020
 # Feather M4 + Propmaker + amps + lots of neopixels
 import board
diff --git a/Macropad_Hotkeys/macros/linux-firefox.py b/Macropad_Hotkeys/macros/linux-firefox.py
index 1cc6e857e..006ad9ef5 100644
--- a/Macropad_Hotkeys/macros/linux-firefox.py
+++ b/Macropad_Hotkeys/macros/linux-firefox.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2021 Emma Humphries for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 # MACROPAD Hotkeys example: Firefox web browser for Linux
 
 from adafruit_hid.keycode import Keycode # REQUIRED if using Keycode.* values
diff --git a/Macropad_Hotkeys/macros/mac-adobe-illustrator.py b/Macropad_Hotkeys/macros/mac-adobe-illustrator.py
index 6f5ae4d5d..f09f5dfd7 100755
--- a/Macropad_Hotkeys/macros/mac-adobe-illustrator.py
+++ b/Macropad_Hotkeys/macros/mac-adobe-illustrator.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2021 Phillip Burgess for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 # MACROPAD Hotkeys example: Adobe Illustrator for Mac
 
 from adafruit_hid.keycode import Keycode # REQUIRED if using Keycode.* values
diff --git a/Macropad_Hotkeys/macros/mac-adobe-photoshop.py b/Macropad_Hotkeys/macros/mac-adobe-photoshop.py
index c09c4e037..3f64ded63 100755
--- a/Macropad_Hotkeys/macros/mac-adobe-photoshop.py
+++ b/Macropad_Hotkeys/macros/mac-adobe-photoshop.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2021 Phillip Burgess for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 # MACROPAD Hotkeys example: Adobe Photoshop for Mac
 
 from adafruit_hid.keycode import Keycode # REQUIRED if using Keycode.* values
diff --git a/Macropad_Hotkeys/macros/mac-evernote.py b/Macropad_Hotkeys/macros/mac-evernote.py
index 2ae820f02..2de1c5983 100644
--- a/Macropad_Hotkeys/macros/mac-evernote.py
+++ b/Macropad_Hotkeys/macros/mac-evernote.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2021 Phillip Burgess for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 # MACROPAD Hotkeys: Evernote web application for Mac
 # Contributed by Redditor s010sdc
 
diff --git a/Macropad_Hotkeys/macros/mac-safari.py b/Macropad_Hotkeys/macros/mac-safari.py
index 7b96e96c6..1b0a2b2f1 100755
--- a/Macropad_Hotkeys/macros/mac-safari.py
+++ b/Macropad_Hotkeys/macros/mac-safari.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2021 Phillip Burgess for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 # MACROPAD Hotkeys example: Safari web browser for Mac
 
 from adafruit_hid.keycode import Keycode # REQUIRED if using Keycode.* values
diff --git a/Macropad_Hotkeys/macros/media.py b/Macropad_Hotkeys/macros/media.py
index 2026be3fe..728f825c1 100755
--- a/Macropad_Hotkeys/macros/media.py
+++ b/Macropad_Hotkeys/macros/media.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2021 Phillip Burgess for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 # MACROPAD Hotkeys example: Consumer Control codes (media keys)
 
 # The syntax for Consumer Control macros is a little peculiar, in order to
diff --git a/Macropad_Hotkeys/macros/minecraft-hotbar.py b/Macropad_Hotkeys/macros/minecraft-hotbar.py
index df07d4745..1fdcd6b89 100644
--- a/Macropad_Hotkeys/macros/minecraft-hotbar.py
+++ b/Macropad_Hotkeys/macros/minecraft-hotbar.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2021 Emma Humphries for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 # MACROPAD Hotkeys example: Minecraft hotbar (inventory)
 
 # Note: Must enable "full keyboad gameplay" for Prev/Next buttons to work.
diff --git a/Macropad_Hotkeys/macros/minecraft-messages.py b/Macropad_Hotkeys/macros/minecraft-messages.py
index 67e295940..602beb4c8 100644
--- a/Macropad_Hotkeys/macros/minecraft-messages.py
+++ b/Macropad_Hotkeys/macros/minecraft-messages.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2021 Henry Gabryjelski for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 # MACROPAD Hotkeys example: Minecraft Messaging
 
 # NOTE: There appears to be a line length limit. Exceeding that limit appears
diff --git a/Macropad_Hotkeys/macros/minecraft-pe-effects.py b/Macropad_Hotkeys/macros/minecraft-pe-effects.py
index 8dfa5c6e0..e386a1e38 100644
--- a/Macropad_Hotkeys/macros/minecraft-pe-effects.py
+++ b/Macropad_Hotkeys/macros/minecraft-pe-effects.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2021 Henry Gabryjelski for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 # MACROPAD Hotkeys example: Minecraft Effects (Creative) for Bedrock Edition
 
 # NOTE: There appears to be a line length limit. Exceeding that limit appears
diff --git a/Macropad_Hotkeys/macros/minecraft-pe-equip.py b/Macropad_Hotkeys/macros/minecraft-pe-equip.py
index 0a64723eb..51f7fd555 100644
--- a/Macropad_Hotkeys/macros/minecraft-pe-equip.py
+++ b/Macropad_Hotkeys/macros/minecraft-pe-equip.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2021 Henry Gabryjelski for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 # MACROPAD Hotkeys example: Minecraft Effects (Creative) for Bedrock Edition
 
 # Note: Must enable "full keyboad gameplay" to equip armor automatically.
diff --git a/Macropad_Hotkeys/macros/mouse.py b/Macropad_Hotkeys/macros/mouse.py
index 1452fe3b3..a6b7f50ba 100755
--- a/Macropad_Hotkeys/macros/mouse.py
+++ b/Macropad_Hotkeys/macros/mouse.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2021 Phillip Burgess for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 # MACROPAD Hotkeys example: Mouse control
 
 # The syntax for Mouse macros is highly peculiar, in order to maintain
diff --git a/Macropad_Hotkeys/macros/numpad.py b/Macropad_Hotkeys/macros/numpad.py
index 65d26da34..a2254b2aa 100644
--- a/Macropad_Hotkeys/macros/numpad.py
+++ b/Macropad_Hotkeys/macros/numpad.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2021 Emma Humphries for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 # MACROPAD Hotkeys example: Universal Numpad
 
 from adafruit_hid.keycode import Keycode # REQUIRED if using Keycode.* values
diff --git a/Macropad_Hotkeys/macros/tones.py b/Macropad_Hotkeys/macros/tones.py
index 10778cc2e..ce0f51344 100755
--- a/Macropad_Hotkeys/macros/tones.py
+++ b/Macropad_Hotkeys/macros/tones.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2021 Phillip Burgess for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 # MACROPAD Hotkeys example: Tones
 
 # The syntax for Tones in macros is highly peculiar, in order to maintain
diff --git a/Macropad_Hotkeys/macros/win-adobe-illustrator.py b/Macropad_Hotkeys/macros/win-adobe-illustrator.py
index d102176fc..929a1bfee 100755
--- a/Macropad_Hotkeys/macros/win-adobe-illustrator.py
+++ b/Macropad_Hotkeys/macros/win-adobe-illustrator.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2021 Phillip Burgess for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 # MACROPAD Hotkeys example: Adobe Illustrator for Windows
 
 from adafruit_hid.keycode import Keycode # REQUIRED if using Keycode.* values
diff --git a/Macropad_Hotkeys/macros/win-adobe-photoshop.py b/Macropad_Hotkeys/macros/win-adobe-photoshop.py
index 03aa87d62..df93ba9ea 100755
--- a/Macropad_Hotkeys/macros/win-adobe-photoshop.py
+++ b/Macropad_Hotkeys/macros/win-adobe-photoshop.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2021 Phillip Burgess for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 # MACROPAD Hotkeys example: Adobe Photoshop for Windows
 
 from adafruit_hid.keycode import Keycode # REQUIRED if using Keycode.* values
diff --git a/Macropad_Hotkeys/macros/win-edge.py b/Macropad_Hotkeys/macros/win-edge.py
index 7941df7ee..367535a57 100755
--- a/Macropad_Hotkeys/macros/win-edge.py
+++ b/Macropad_Hotkeys/macros/win-edge.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2021 Phillip Burgess for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 # MACROPAD Hotkeys example: Microsoft Edge web browser for Windows
 
 from adafruit_hid.keycode import Keycode # REQUIRED if using Keycode.* values
diff --git a/Playa_Bike/code.py b/Playa_Bike/code.py
index 455f972c8..8693b9738 100644
--- a/Playa_Bike/code.py
+++ b/Playa_Bike/code.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2019 Erin St Blaine for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 import time
 import board
 from rainbowio import colorwheel
diff --git a/ScreamingCauldron/code.py b/ScreamingCauldron/code.py
index 31f5222e9..7ad5820d7 100644
--- a/ScreamingCauldron/code.py
+++ b/ScreamingCauldron/code.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2017 John Edgar Park for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 # Screaming Cauldron
 # for Adafruit Industries Learning Guide