Add ESP32-S2 template examples.

Author: kattni

Adafruit_Feather_TFT_ESP32-S2/storage/boot.py

@@ -1,4 +1,3 @@
-
 # SPDX-FileCopyrightText: 2021 Kattni Rembor for Adafruit Industries
 # SPDX-License-Identifier: MIT
 """

CircuitPython_Templates/analog_voltage_values_ESP32-S2/code.py

@@ -0,0 +1,17 @@
+# SPDX-FileCopyrightText: 2022 Kattni Rembor for Adafruit Industries
+# SPDX-License-Identifier: MIT
+"""CircuitPython Analog In Voltage Example for ESP32-S2"""
+import time
+import board
+import analogio
+
+analog_pin = analogio.AnalogIn(board.A0)
+
+
+def get_voltage(pin):
+    return (pin.value * 2.57) / 51000
+
+
+while True:
+    print(get_voltage(analog_pin))
+    time.sleep(0.1)

CircuitPython_Templates/cap_touch_one_pin_ESP32-S2/code.py

@@ -0,0 +1,16 @@
+# SPDX-FileCopyrightText: 2021 Kattni Rembor for Adafruit Industries
+# SPDX-License-Identifier: MIT
+"""
+CircuitPython Capacitive Touch Pin Example for ESP32-S2.
+Print to the serial console when one pin is touched.
+"""
+import time
+import board
+import touchio
+
+touch = touchio.TouchIn(board.D8)
+
+while True:
+    if touch.value:
+        print("Pin touched!")
+    time.sleep(0.1)

CircuitPython_Templates/cap_touch_two_pins_ESP32-S2/code.py

@@ -0,0 +1,19 @@
+# SPDX-FileCopyrightText: 2021 Kattni Rembor for Adafruit Industries
+# SPDX-License-Identifier: MIT
+"""
+CircuitPython Capacitive Two Touch Pin Example for ESP32-S2
+Print to the serial console when a pin is touched.
+"""
+import time
+import board
+import touchio
+
+touch_one = touchio.TouchIn(board.D8)
+touch_two = touchio.TouchIn(board.D5)
+
+while True:
+    if touch_one.value:
+        print("Pin one touched!")
+    if touch_two.value:
+        print("Pin two touched!")
+    time.sleep(0.1)

CircuitPython_Templates/digital_input_built_in_button_led/code.py

@@ -0,0 +1,19 @@
+# SPDX-FileCopyrightText: 2022 Kattni Rembor for Adafruit Industries
+# SPDX-License-Identifier: MIT
+"""
+CircuitPython Digital Input Example - Blinking an LED using the built-in button.
+"""
+import board
+import digitalio
+
+led = digitalio.DigitalInOut(board.LED)
+led.direction = digitalio.Direction.OUTPUT
+
+button = digitalio.DigitalInOut(board.BUTTON)
+button.switch_to_input(pull=digitalio.Pull.UP)
+
+while True:
+    if not button.value:
+        led.value = True
+    else:
+        led.value = False