diff --git a/Yoga_Pose_Chime/code.py b/Yoga_Pose_Chime/code.py
index d3174eb40..2806bddcd 100644
--- a/Yoga_Pose_Chime/code.py
+++ b/Yoga_Pose_Chime/code.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2020 John Park for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 # Yoga pose timer
 # Requires CLUE with solenoid transistor driver circuit
 
diff --git a/adafruitio-adt7410/adafruit_io_adt7410.py b/adafruitio-adt7410/adafruit_io_adt7410.py
index c952cd546..9e2f04140 100644
--- a/adafruitio-adt7410/adafruit_io_adt7410.py
+++ b/adafruitio-adt7410/adafruit_io_adt7410.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2019 Brent Rubell for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 """
 'adafruit_io_adt7410.py'
 ==================================
diff --git a/adafruitio-adt7410/adafruitio-adt7410.ino b/adafruitio-adt7410/adafruitio-adt7410.ino
index 22298497f..735d5af2e 100644
--- a/adafruitio-adt7410/adafruitio-adt7410.ino
+++ b/adafruitio-adt7410/adafruitio-adt7410.ino
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2019 Brent Rubell for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 // Adafruit IO ADT7410 Example
 //
 // Adafruit invests time and resources providing this open source code.
diff --git a/adafruitio-temp-motion-wing/adafruitio-temp-motion-wing.ino b/adafruitio-temp-motion-wing/adafruitio-temp-motion-wing.ino
index 951057d7e..2d43dcbe0 100644
--- a/adafruitio-temp-motion-wing/adafruitio-temp-motion-wing.ino
+++ b/adafruitio-temp-motion-wing/adafruitio-temp-motion-wing.ino
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2019 Brent Rubell for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 // Adafruit IO - Analog Devices ADT7410 + ADXL343 Example
 //
 // Adafruit invests time and resources providing this open source code.
diff --git a/adalogger/adalogger.ino b/adalogger/adalogger.ino
index 638cd5029..7b6a1f3ae 100644
--- a/adalogger/adalogger.ino
+++ b/adalogger/adalogger.ino
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2019 Brent Rubell for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 #include <SPI.h>
 #include <SD.h>
 
diff --git a/color_touch_pendant/color_touch_pendant.ino b/color_touch_pendant/color_touch_pendant.ino
index 8e620168c..95d56ef0d 100644
--- a/color_touch_pendant/color_touch_pendant.ino
+++ b/color_touch_pendant/color_touch_pendant.ino
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2018 Erin St. Blaine for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 // Code by Erin St. Blaine for Adafruit Industries
 // Color Touch Pendant Tutorial: https://learn.adafruit.com/color-touch-pendant-necklace/introduction
 // Two neopixel rings connected on pin 1 will cycle through gradient colors when the pendant is touched.  For Gemma M0.
diff --git a/eink_FeatherWing_stand/code.py b/eink_FeatherWing_stand/code.py
index 221a6f6c9..ed5b5fcce 100644
--- a/eink_FeatherWing_stand/code.py
+++ b/eink_FeatherWing_stand/code.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2019 Noe Ruiz for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 import digitalio
 import busio
 import board
diff --git a/fauxmo_guide/fauxmo-basic/fauxmo-basic.ino b/fauxmo_guide/fauxmo-basic/fauxmo-basic.ino
index 9d604b1a1..b59b89df7 100644
--- a/fauxmo_guide/fauxmo-basic/fauxmo-basic.ino
+++ b/fauxmo_guide/fauxmo-basic/fauxmo-basic.ino
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2019 Brent Rubell for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 #include <Arduino.h>
 #include <ESP8266WiFi.h>
 #include <ESPAsyncTCP.h>
diff --git a/fauxmo_guide/fauxmo-relay-neopixel/fauxmo-relay-neopixel.ino b/fauxmo_guide/fauxmo-relay-neopixel/fauxmo-relay-neopixel.ino
index 6e8a448e0..7b7f1c4c8 100644
--- a/fauxmo_guide/fauxmo-relay-neopixel/fauxmo-relay-neopixel.ino
+++ b/fauxmo_guide/fauxmo-relay-neopixel/fauxmo-relay-neopixel.ino
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2019 Brent Rubell for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 #include <Arduino.h>
 #include <Adafruit_NeoPixel.h>
 #include <ESP8266WiFi.h>
diff --git a/lightbox/code.py b/lightbox/code.py
index 39759811f..f3db2eeca 100644
--- a/lightbox/code.py
+++ b/lightbox/code.py
@@ -1,3 +1,8 @@
+# SPDX-FileCopyrightText: 2019 Kattni Rembor for Adafruit Industries
+# SPDX-FileCopyrightText: 2019 Dave Astels for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 """
 Lightbox driver program.
 
diff --git a/lorawan_sensing_network/lora_device/code.py b/lorawan_sensing_network/lora_device/code.py
index 1ea063f84..91f1575d2 100644
--- a/lorawan_sensing_network/lora_device/code.py
+++ b/lorawan_sensing_network/lora_device/code.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2019 Brent Rubell for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 """
 lora_device.py
 
diff --git a/lorawan_sensing_network/lora_gateway/code.py b/lorawan_sensing_network/lora_gateway/code.py
index 6bd5f436a..92ed09c4d 100644
--- a/lorawan_sensing_network/lora_gateway/code.py
+++ b/lorawan_sensing_network/lora_gateway/code.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2019 Brent Rubell for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 """
 Adafruit IO LoRa Gateway
 
diff --git a/lorawan_sensing_network/ttn_feather_node/code.py b/lorawan_sensing_network/ttn_feather_node/code.py
index 3d03a3ab5..a6fb139a9 100644
--- a/lorawan_sensing_network/ttn_feather_node/code.py
+++ b/lorawan_sensing_network/ttn_feather_node/code.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2019 Brent Rubell for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 import time
 import board
 import busio
diff --git a/neoMatrixMkI/neoMatrixMkI.ino b/neoMatrixMkI/neoMatrixMkI.ino
index 6b194e188..388e002fb 100644
--- a/neoMatrixMkI/neoMatrixMkI.ino
+++ b/neoMatrixMkI/neoMatrixMkI.ino
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2017 John Park for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 #include "Arduino.h"
 #include "Keypad.h"
 #include "Neosegment.h"