samples: add arduino_core samples

Add arduino_core samples

Signed-off-by: TOKITA Hiroshi <[email protected]>

Author: soburi

samples/modules/arduino_core/analog_input/CMakeLists.txt

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+# SPDX-License-Identifier: Apache-2.0
+
+cmake_minimum_required(VERSION 3.20.0)
+
+find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
+project(analog_input)
+
+target_sources(app PRIVATE src/main.cpp)
+zephyr_compile_options(-Wno-unused-variable -Wno-comment)

samples/modules/arduino_core/analog_input/README.rst

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+.. _analog_input:
+
+Analog Input
+############
+
+Overview
+********
+
+The analog_input sample blinks the LED with control of the period
+by the voltage of the input pin.
+Inputting high voltage to blink the LED slowly.
+Blink the LED fast on input voltage is low.
+When the input is 0V, LED light.
+
+Building and Running
+********************
+
+Build and flash analog_input sample as follows,
+
+```sh
+$> west build -p -b arduino_nano_33_ble sample/analog_input/
+
+$> west flash --bossac=/home/$USER/.arduino15/packages/arduino/tools/bossac/1.9.1-arduino2/bossac
+```

samples/modules/arduino_core/analog_input/prj.conf

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+CONFIG_ADC=y
+CONFIG_ARDUINO_API=y

samples/modules/arduino_core/analog_input/sample.yaml

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+sample:
+  name: Arduino Analog Input sample
+
+common:
+  tags:
+    - arduino_core
+  required_snippets:
+    - arduino_core
+  platform_allow:
+    - arduino_mkrzero/samd21g18a
+    - arduino_nano_33_ble/nrf52840
+    - arduino_nano_33_ble/nrf52840/sense
+    - arduino_nano_33_iot/samd21g18a
+    - beagleconnect_freedom/cc1352p7
+    - cc3220sf_launchxl/cc3220sf
+    - nrf52840dk/nrf52840
+    - nrf9160dk/nrf9160
+    - rpi_pico/rp2040
+
+tests:
+  sample.arduino_core.analog_impot.build:
+    build_only: true

samples/modules/arduino_core/analog_input/src/main.cpp

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+/*
+ * Copyright (c) 2022 TOKITA Hiroshi <[email protected]>
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <Arduino.h>
+
+const int analog_input = A0;    // select the input pin for the potentiometer
+const int ledPin = LED_BUILTIN;      // select the pin for the LED
+const float wait_factor = 1.f;
+
+void setup() {
+  pinMode(ledPin, OUTPUT);
+}
+
+void loop() {
+  int value = 0;
+
+  value = analogRead(analog_input);
+
+  /* Blinks slowly when the input voltage is high */
+
+  digitalWrite(ledPin, HIGH);
+  delay(value * wait_factor);
+
+  digitalWrite(ledPin, LOW);
+  delay(value * wait_factor);
+}

samples/modules/arduino_core/attach_interrupt/CMakeLists.txt

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+# SPDX-License-Identifier: Apache-2.0
+
+cmake_minimum_required(VERSION 3.20.0)
+
+find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
+project(attach_interrupt)
+
+target_sources(app PRIVATE src/main.cpp)
+
+zephyr_compile_options(-Wno-unused-variable -Wno-comment)

samples/modules/arduino_core/attach_interrupt/README.rst

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+.. _attach_interrupt-sample:
+
+AttachInterrupt
+######
+
+Overview
+********
+
+This sample demonstrates how to use attachInterrupt API.
+
+Building and Running
+********************
+
+Build and flash attachInterrupt sample as follows,
+
+```sh
+$> west build  -p -b arduino_nano_33_ble samples/basic/attach_interrupt/ -DZEPHYR_EXTRA_MODULES=/home/$USER/zephyrproject/modules/lib/Arduino-Core-Zephyr
+
+$> west flash --bossac=/home/$USER/.arduino15/packages/arduino/tools/bossac/1.9.1-arduino2/bossac
+```
+
+Turn on the LED by detecting interrupts. And Turn off the next interrupt.

samples/modules/arduino_core/attach_interrupt/prj.conf

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+CONFIG_ARDUINO_API=y

samples/modules/arduino_core/attach_interrupt/sample.yaml

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+sample:
+  name: Attach Interrupt sample
+
+common:
+  tags:
+    - arduino_core
+  required_snippets:
+    - arduino_core
+  platform_allow:
+    - arduino_mkrzero/samd21g18a
+    - arduino_nano_33_ble/nrf52840
+    - arduino_nano_33_ble/nrf52840/sense
+    - arduino_nano_33_iot/samd21g18a
+    - beagleconnect_freedom/cc1352p7
+    - cc3220sf_launchxl/cc3220sf
+    - nrf52840dk/nrf52840
+    - nrf9160dk/nrf9160
+    - rpi_pico/rp2040
+
+tests:
+  sample.arduino_core.attach_interrupt.build:
+    build_only: true

samples/modules/arduino_core/attach_interrupt/src/main.cpp

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+/*
+ * Copyright (c) 2022 TOKITA Hiroshi <[email protected]>
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <Arduino.h>
+
+const pin_size_t ledPin = LED_BUILTIN;
+const pin_size_t interruptPin = 2;
+PinStatus state = LOW;
+
+void blink() {
+  state = (state == LOW) ? HIGH : LOW;
+  digitalWrite(ledPin, state);
+}
+
+void setup() {
+  pinMode(ledPin, OUTPUT);
+  pinMode(interruptPin, INPUT_PULLUP);
+  attachInterrupt(interruptPin, blink, CHANGE);
+}
+
+void loop() {
+}