Code for QT Py ESP, and template fixes.

Author: kattni

Adafruit_QT_Py_ESP32-S2/Analog_In/code.py

@@ -0,0 +1,19 @@
+# SPDX-FileCopyrightText: 2021 Kattni Rembor for Adafruit Industries
+# SPDX-License-Identifier: Unlicense
+"""
+CircuitPython analog voltage value example
+"""
+import time
+import board
+import analogio
+
+analog_pin = analogio.AnalogIn(board.A0)
+
+
+def get_voltage(pin):
+    return (pin.value * 2.6) / 51653
+
+
+while True:
+    print(get_voltage(analog_pin))
+    time.sleep(0.1)

Adafruit_QT_Py_ESP32-S2/Capacitive_Touch_One_Pin/code.py

@@ -0,0 +1,15 @@
+# SPDX-FileCopyrightText: 2021 Kattni Rembor for Adafruit Industries
+# SPDX-License-Identifier: Unlicense
+"""
+CircuitPython Capacitive Touch Pin Example - Print to the serial console when one pin is touched.
+"""
+import time
+import board
+import touchio
+
+touch = touchio.TouchIn(board.A2)
+
+while True:
+    if touch.value:
+        print("Pin touched!")
+    time.sleep(0.1)

Adafruit_QT_Py_ESP32-S2/Capacitive_Touch_Two_Pins/code.py

@@ -0,0 +1,18 @@
+# SPDX-FileCopyrightText: 2021 Kattni Rembor for Adafruit Industries
+# SPDX-License-Identifier: Unlicense
+"""
+CircuitPython Capacitive Two Touch Pin Example - Print to the serial console when a pin is touched.
+"""
+import time
+import board
+import touchio
+
+touch_one = touchio.TouchIn(board.A2)
+touch_two = touchio.TouchIn(board.TX)
+
+while True:
+    if touch_one.value:
+        print("Pin one touched!")
+    if touch_two.value:
+        print("Pin two touched!")
+    time.sleep(0.1)

Adafruit_QT_Py_ESP32-S2/Digital_Input/code.py

@@ -0,0 +1,19 @@
+# SPDX-FileCopyrightText: 2021 Kattni Rembor for Adafruit Industries
+# SPDX-License-Identifier: Unlicense
+"""
+CircuitPython Digital Input example - Blinking a built-in NeoPixel LED using a button switch.
+"""
+import board
+import digitalio
+import neopixel
+
+pixel = neopixel.NeoPixel(board.NEOPIXEL, 1)
+
+button = digitalio.DigitalInOut(board.BUTTON)
+button.switch_to_input(pull=digitalio.Pull.UP)
+
+while True:
+    if not button.value:
+        pixel.fill((255, 0, 0))
+    else:
+        pixel.fill((0, 0, 0))

Adafruit_QT_Py_ESP32-S2/Storage/boot.py

@@ -0,0 +1,22 @@
+# SPDX-FileCopyrightText: 2021 Kattni Rembor for Adafruit Industries
+# SPDX-License-Identifier: Unlicense
+"""
+CircuitPython Essentials Storage CP Filesystem boot.py file
+"""
+import time
+import board
+import digitalio
+import storage
+import neopixel
+
+pixel = neopixel.NeoPixel(board.NEOPIXEL, 1)
+
+button = digitalio.DigitalInOut(board.BUTTON)
+button.switch_to_input(pull=digitalio.Pull.UP)
+
+# Turn the NeoPixel blue for one second to indicate when to press the boot button.
+pixel.fill((255, 255, 255))
+time.sleep(1)
+
+# If the button is connected to ground, the filesystem is writable by CircuitPython
+storage.remount("/", readonly=button.value)

Adafruit_QT_Py_ESP32-S2/Storage/code.py

@@ -0,0 +1,38 @@
+# SPDX-FileCopyrightText: 2021 Kattni Rembor for Adafruit Industries
+# SPDX-License-Identifier: Unlicense
+"""
+CircuitPython Essentials Storage CP Filesystem code.py file
+"""
+import time
+import board
+import microcontroller
+import neopixel
+
+pixel = neopixel.NeoPixel(board.NEOPIXEL, 1)
+
+try:
+    with open("/temperature.txt", "a") as temp_log:
+        while True:
+            # The microcontroller temperature in Celsius. Include the
+            # math to do the C to F conversion here, if desired.
+            temperature = microcontroller.cpu.temperature
+
+            # Write the temperature to the temperature.txt file every 10 seconds.
+            temp_log.write('{0:.2f}\n'.format(temperature))
+            temp_log.flush()
+
+            # Blink the NeoPixel on every write...
+            pixel.fill((255, 0, 0))
+            time.sleep(1)  # ...for one second.
+            pixel.fill((0, 0, 0))  # Then turn it off...
+            time.sleep(9)  # ...for the other 9 seconds.
+
+except OSError as e:  # When the filesystem is NOT writable by CircuitPython...
+    delay = 0.5  # ...blink the NeoPixel every half second.
+    if e.args[0] == 28:  # If the file system is full...
+        delay = 0.15  # ...blink the NeoPixel every 0.15 seconds!
+    while True:
+        pixel.fill((255, 0, 0))
+        time.sleep(delay)
+        pixel.fill((0, 0, 0))
+        time.sleep(delay)

CircuitPython_Templates/cap_touch_two_pin/code.py

@@ -7,7 +7,7 @@
 Update TOUCH_PIN_TWO to the pin name for the second touch-capable pin.
 
 For example:
-If you are using A0 and A1 on a Feather RP2040, update TOUCH_PIN_ONE to A0 and TOUCH_PIN_TWO to A2.
+If you are using A0 and A1 on a Feather RP2040, update TOUCH_PIN_ONE to A0 and TOUCH_PIN_TWO to A1.
 """
 import time
 import board

CircuitPython_Templates/i2c_mcp9808/code.py

@@ -6,6 +6,8 @@
 import adafruit_mcp9808
 
 i2c = board.I2C()  # uses board.SCL and board.SDA
+# import busio
+# i2c = busio.I2C(board.SCL1, board.SDA1) # For QT Py RP2040, QT Py ESP32-S2
 mcp9808 = adafruit_mcp9808.MCP9808(i2c)
 
 while True:

CircuitPython_Templates/storage_boot_py/boot.py

@@ -3,6 +3,7 @@
 """
 CircuitPython Essentials Storage CP Filesystem boot.py file
 
+REMOVE THIS LINE AND ALL TEXT BELOW BEFORE SUBMITTING TO GITHUB.
 There are three things to be updated in this file to match your board:
 * Update OBJECT_NAME to match the physical thing you are using, e.g. button or pin.
 * Update OBJECT_PIN to match the pin name to which the button or pin is attached.

CircuitPython_Templates/storage_boot_py_neopixel/boot.py

@@ -0,0 +1,36 @@
+# SPDX-FileCopyrightText: 2021 Kattni Rembor for Adafruit Industries
+# SPDX-License-Identifier: Unlicense
+"""
+CircuitPython Essentials Storage CP Filesystem boot.py file
+
+REMOVE THIS LINE AND ALL TEXT BELOW BEFORE SUBMITTING TO GITHUB.
+This file is specific to boards like ESP32-S2 where the boot button is used for bootloader and
+safe mode, and therefore the button must be pressed at the right time to get into readonly mode.
+
+There are two things to be updated in this file to match your board:
+* Update OBJECT_PIN to match the pin name to which the button or pin is attached.
+* Update UP_OR_DOWN to match the Pull necessary for the chosen pin.
+
+For example:
+If using the boot button on a QT Py ESP32-S2, OBJECT_PIN to BUTTON.
+
+For example:
+If using the boot button on a QT Py ESP32-S2, update UP_OR_DOWN to UP.
+"""
+import time
+import board
+import digitalio
+import storage
+import neopixel
+
+pixel = neopixel.NeoPixel(board.NEOPIXEL, 1)
+
+button = digitalio.DigitalInOut(board.OBJECT_PIN)
+button.switch_to_input(pull=digitalio.Pull.UP_OR_DOWN)
+
+# Turn the NeoPixel blue for one second to indicate when to press the boot button.
+pixel.fill((255, 255, 255))
+time.sleep(1)
+
+# If the button is connected to ground, the filesystem is writable by CircuitPython
+storage.remount("/", readonly=button.value)