PR -3: Added spdx to 9 more projects

Author: evaherrada

Vertical_Garden_Barometer/code.py

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2020 Erin St. Blaine for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 """
 Read the barometric reading in the air
 Visualize air reading changes over time as a color animation on a NeoPixel strip

Visualizer_Touch_Control/code.py

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2021 John Park for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 import time
 import board
 import busio

Voice2Json_Edge_Detection/demo.py

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2021 Melissa LeBlanc-Williams for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 import os
 import subprocess
 import random

Wave_Freq_Generator/code.py

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2018 Dave Astels for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 """
 Main signal generator code.
 

Wave_Freq_Generator/display.py

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2018 Dave Astels for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 """
 Display code for signal generator.
 

Wave_Freq_Generator/generator.py

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2018 Dave Astels for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 """
 Outpout generator code for signal generator.
 

Wave_Freq_Generator/shapes.py

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2018 Dave Astels for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 """
 Signal generator wave shapes.
 

Wearable_BLE_Temperature_Monitor/ble_temp_monitor.ino

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2020 Brent Rubell for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 /*********************************************************************
  Learn Guide: BLE Temperature Monitoring Armband
 

Weather_Display_Matrix/code.py

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2020 John Park for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 # Matrix Weather display
 # For Metro M4 Airlift with RGB Matrix shield, 64 x 32 RGB LED Matrix display
 

Weather_Display_Matrix/openweather_graphics.py

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2020 John Park for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
 import time
 import displayio
 from adafruit_display_text.label import Label