now actionified & adding proper test files for all examples!

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,46 @@
+Thank you for opening an issue on an Adafruit Arduino library repository.  To
+improve the speed of resolution please review the following guidelines and
+common troubleshooting steps below before creating the issue:
+
+- **Do not use GitHub issues for troubleshooting projects and issues.**  Instead use
+  the forums at http://forums.adafruit.com to ask questions and troubleshoot why
+  something isn't working as expected.  In many cases the problem is a common issue
+  that you will more quickly receive help from the forum community.  GitHub issues
+  are meant for known defects in the code.  If you don't know if there is a defect
+  in the code then start with troubleshooting on the forum first.
+
+- **If following a tutorial or guide be sure you didn't miss a step.** Carefully
+  check all of the steps and commands to run have been followed.  Consult the
+  forum if you're unsure or have questions about steps in a guide/tutorial.
+
+- **For Arduino projects check these very common issues to ensure they don't apply**:
+
+  - For uploading sketches or communicating with the board make sure you're using
+    a **USB data cable** and **not** a **USB charge-only cable**.  It is sometimes
+    very hard to tell the difference between a data and charge cable!  Try using the
+    cable with other devices or swapping to another cable to confirm it is not
+    the problem.
+
+  - **Be sure you are supplying adequate power to the board.**  Check the specs of
+    your board and plug in an external power supply.  In many cases just
+    plugging a board into your computer is not enough to power it and other
+    peripherals.
+
+  - **Double check all soldering joints and connections.**  Flakey connections
+    cause many mysterious problems.  See the [guide to excellent soldering](https://learn.adafruit.com/adafruit-guide-excellent-soldering/tools) for examples of good solder joints.
+
+  - **Ensure you are using an official Arduino or Adafruit board.** We can't
+    guarantee a clone board will have the same functionality and work as expected
+    with this code and don't support them.
+
+If you're sure this issue is a defect in the code and checked the steps above
+please fill in the following fields to provide enough troubleshooting information.
+You may delete the guideline and text above to just leave the following details:
+
+- Arduino board:  **INSERT ARDUINO BOARD NAME/TYPE HERE**
+
+- Arduino IDE version (found in Arduino -> About Arduino menu):  **INSERT ARDUINO
+  VERSION HERE**
+
+- List the steps to reproduce the problem below (if possible attach a sketch or
+  copy the sketch code in too): **LIST REPRO STEPS BELOW**

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,26 @@
+Thank you for creating a pull request to contribute to Adafruit's GitHub code!
+Before you open the request please review the following guidelines and tips to
+help it be more easily integrated:
+
+- **Describe the scope of your change--i.e. what the change does and what parts
+  of the code were modified.**  This will help us understand any risks of integrating
+  the code.
+
+- **Describe any known limitations with your change.**  For example if the change
+  doesn't apply to a supported platform of the library please mention it.
+
+- **Please run any tests or examples that can exercise your modified code.**  We
+  strive to not break users of the code and running tests/examples helps with this
+  process.
+
+Thank you again for contributing!  We will try to test and integrate the change
+as soon as we can, but be aware we have many GitHub repositories to manage and
+can't immediately respond to every request.  There is no need to bump or check in
+on a pull request (it will clutter the discussion of the request).
+
+Also don't be worried if the request is closed or not integrated--sometimes the
+priorities of Adafruit's GitHub code (education, ease of use) might not match the
+priorities of the pull request.  Don't fret, the open source community thrives on
+forks and GitHub makes it easy to keep your changes in a forked repo.
+
+After reviewing the guidelines above you can delete this text from the pull request.

.github/workflows/githubci.yml

@@ -3,9 +3,46 @@ name: Arduino Library CI
 on: [pull_request, push, repository_dispatch]
 
 jobs:
+  arduino:
+    strategy:
+      fail-fast: false
+      matrix:
+        arduino-platform: ["uno", "nrf52832", "cpx_ada", "pyportal", "protrinket_3v", "protrinket_5v", "metro_m0", "esp8266", "esp32", "trinket_3v", "trinket_5v", "gemma", "flora", "feather32u4", "feather_m0_express", "gemma_m0", "trinket_m0", "hallowing_m0", "monster_m4sk", "hallowing_m4", "neotrellis_m4", "pybadge", "cpb"]
+
+    runs-on: ubuntu-latest
+    #needs: pylint
+
+    steps:
+    - uses: actions/setup-python@v1
+      with:
+        python-version: '3.x'
+    - uses: actions/checkout@v2
+    - uses: actions/checkout@v2
+      with:
+         repository: adafruit/ci-arduino
+         path: ci
+
+    - name: pre-install
+      run: bash ci/actions_install.sh
+
+    # manually install some libraries
+    - name: extra libraries
+      run: |
+        git clone --quiet https://github.com/adafruit/Cryptosuite.git /home/runner/Arduino/libraries/Cryptosuite
+        git clone --quiet https://github.com/adafruit/WiFiNINA.git /home/runner/Arduino/libraries/WiFiNINA
+        git clone --quiet https://github.com/adafruit/Adafruit_LSM303.git /home/runner/Arduino/libraries/Adafruit_LSM303
+        git clone --quiet https://github.com/moderndevice/CapSense.git /home/runner/Arduino/libraries/CapSense
+        git clone --quiet https://github.com/PaintYourDragon/ffft.git /home/runner/Arduino/libraries/ffft
+        git clone --quiet https://github.com/adafruit/RadioHead.git /home/runner/Arduino/libraries/RadioHead
+        git clone --quiet https://github.com/me-no-dev/ESPAsyncTCP /home/runner/Arduino/libraries/ESPAsyncTCP
+        git clone --quiet https://github.com/adafruit/Talkie /home/runner/Arduino/libraries/Talkie
+
+    - name: test platforms
+      run: python3 ci/build_platform.py ${{ matrix.arduino-platform }}
+
   pylint:
     runs-on: ubuntu-latest
-#    needs: build
+    needs: arduino
     steps:
     - name: Set up Python 3.6
       uses: actions/setup-python@v1
@@ -22,27 +59,3 @@ jobs:
 
     - name: lint
       run: ./pylint_check.sh
-
-  arduino:
-    strategy:
-      fail-fast: false
-      matrix:
-        arduino-platform: ["uno", "cpx_ada", "pyportal"]
-
-    runs-on: ubuntu-latest
-    
-    steps:
-    - uses: actions/setup-python@v1
-      with:
-        python-version: '3.x'
-    - uses: actions/checkout@v2
-    - uses: actions/checkout@v2
-      with:
-         repository: adafruit/ci-arduino
-         path: ci
-
-    - name: pre-install
-      run: bash ci/actions_install.sh
-
-    - name: test platforms
-      run: python3 ci/build_platform.py ${{ matrix.arduino-platform }}

Adafruit_ESP32_Arduino_Demos/ESP32_FirmwareUpdater/ESP32BootROM.cpp

@@ -0,0 +1,295 @@
+/*
+  ESP32BootROM - part of the Firmware Updater for the
+  Arduino MKR WiFi 1010, Arduino MKR Vidor 4000, and Arduino UNO WiFi Rev.2.
+
+  Copyright (c) 2018 Arduino SA. All rights reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#include "ESP32BootROM.h"
+
+//#define DEBUG 1
+
+ESP32BootROMClass::ESP32BootROMClass(HardwareSerial& serial, int gpio0Pin, int resetnPin) :
+  _serial(&serial),
+  _gpio0Pin(gpio0Pin),
+  _resetnPin(resetnPin)
+{
+
+}
+
+int ESP32BootROMClass::begin(unsigned long baudrate)
+{
+  _serial->begin(115200);
+
+  pinMode(_gpio0Pin, OUTPUT);
+  pinMode(_resetnPin, OUTPUT);
+
+  digitalWrite(_gpio0Pin, LOW);
+
+  digitalWrite(_resetnPin, LOW);
+  delay(10);
+  digitalWrite(_resetnPin, HIGH);
+  delay(100);
+
+  int synced = 0;
+
+  for (int retries = 0; !synced && (retries < 5); retries++) {
+    synced = sync();
+  }
+
+  if (!synced) {
+    return 0;
+  }
+
+#if defined(ARDUINO_SAMD_MKRVIDOR4000) || defined(ARDUINO_AVR_UNO_WIFI_REV2)
+  (void)baudrate;
+#else
+  if (baudrate != 115200) {
+    if (!changeBaudrate(baudrate)) {
+      return 0;
+    }
+
+    delay(100);
+
+    _serial->end();
+    _serial->begin(baudrate);
+  }
+#endif
+
+  if (!spiAttach()) {
+    return 0;
+  }
+
+  return 1;
+}
+
+void ESP32BootROMClass::end() {
+  _serial->end();
+}
+
+int ESP32BootROMClass::sync()
+{
+  const uint8_t data[] = {
+    0x07, 0x07, 0x12, 0x20,
+    0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55
+  };
+
+  command(0x08, data, sizeof(data));
+
+  int results[8];
+
+  for (int i = 0; i < 8; i++) {
+    results[i] = response(0x08, 100);
+  }
+
+  return (results[0] == 0);
+}
+
+int ESP32BootROMClass::changeBaudrate(unsigned long baudrate)
+{
+  const uint32_t data[2] = {
+    baudrate,
+    0
+  };
+
+  command(0x0f, data, sizeof(data));
+
+  return (response(0x0f, 3000) == 0);
+}
+
+int ESP32BootROMClass::spiAttach()
+{
+  const uint8_t data[] = {
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+  };
+
+  command(0x0d, data, sizeof(data));
+
+  return (response(0x0d, 3000) == 0);
+}
+
+int ESP32BootROMClass::beginFlash(uint32_t offset, uint32_t size, uint32_t chunkSize) {
+  const uint32_t data[4] = {
+    size,
+    size / chunkSize,
+    chunkSize,
+    offset
+  };
+
+  command(0x02, data, sizeof(data));
+
+  _flashSequenceNumber = 0;
+  _chunkSize = chunkSize;
+
+  return (response(0x02, 120000) == 0);
+}
+
+int ESP32BootROMClass::dataFlash(const void* data, uint32_t length)
+{
+  uint32_t cmdData[4 + (_chunkSize / 4)];
+
+  cmdData[0] = length;
+  cmdData[1] = _flashSequenceNumber++;
+  cmdData[2] = 0;
+  cmdData[3] = 0;
+
+  memcpy(&cmdData[4], data, length);
+
+  if (length < _chunkSize) {
+    memset(&cmdData[4 + (length / 4)], 0xff, _chunkSize - length);
+  }
+
+  command(0x03, cmdData, sizeof(cmdData));
+
+  return (response(0x03, 3000) == 0);
+}
+
+int ESP32BootROMClass::endFlash(uint32_t reboot) {
+  const uint32_t data[1] = {
+    reboot
+  };
+
+  command(0x04, data, sizeof(data));
+
+  return (response(0x04, 3000) == 0);
+}
+
+int ESP32BootROMClass::md5Flash(uint32_t offset, uint32_t size, uint8_t* result)
+{
+  const uint32_t data[4] = {
+    offset,
+    size,
+    0,
+    0
+  };
+
+  command(0x13, data, sizeof(data));
+
+  uint8_t asciiResult[32];
+
+  if (response(0x13, 3000, asciiResult) != 0) {
+    return 0;
+  }
+
+  char temp[3] = { 0, 0, 0 };
+
+  for (int i = 0; i < 16; i++) {
+    temp[0] = asciiResult[i * 2];
+    temp[1] = asciiResult[i * 2 + 1];
+
+    result[i] = strtoul(temp, NULL, 16);
+  }
+
+  return 1;
+}
+
+void ESP32BootROMClass::command(int opcode, const void* data, uint16_t length)
+{
+  uint32_t checksum = 0;
+
+  if (opcode == 0x03) {
+    checksum = 0xef; // seed
+
+    for (uint16_t i = 16; i < length; i++) {
+      checksum ^= ((const uint8_t*)data)[i];
+    }
+  }
+
+  _serial->write(0xc0);
+  _serial->write((uint8_t)0x00); // direction
+  _serial->write(opcode);
+  _serial->write((uint8_t*)&length, sizeof(length));
+  writeEscapedBytes((uint8_t*)&checksum, sizeof(checksum));
+  writeEscapedBytes((uint8_t*)data, length);
+  _serial->write(0xc0);
+#ifdef ARDUINO_SAMD_MKRVIDOR4000
+  // _serial->flush(); // doesn't work!
+#else
+  _serial->flush();
+#endif
+}
+
+int ESP32BootROMClass::response(int opcode, unsigned long timeout, void* body)
+{
+  uint8_t data[10 + 256];
+  uint16_t index = 0;
+
+  uint8_t responseLength = 4;
+
+  for (unsigned long start = millis(); (index < (uint16_t)(10 + responseLength)) && (millis() - start) < timeout;) {
+    if (_serial->available()) {
+      data[index] = _serial->read();
+
+      if (index == 3) {
+        responseLength = data[index];
+      }
+
+      index++;
+    }
+  }
+
+#ifdef DEBUG
+  if (index) {
+    for (int i = 0; i < index; i++) {
+      byte b = data[i];
+
+      if (b < 0x10) {
+        Serial.print('0');
+      }
+
+      Serial.print(b, HEX);
+      Serial.print(' ');
+    }
+    Serial.println();
+  }
+#endif
+
+  if (index != (uint16_t)(10 + responseLength)) {
+    return -1;
+  }
+
+  if (data[0] != 0xc0 || data[1] != 0x01 || data[2] != opcode || data[responseLength + 5] != 0x00 || data[responseLength + 6] != 0x00 || data[responseLength + 9] != 0xc0) {
+    return -1;
+  }
+
+  if (body) {
+    memcpy(body, &data[9], responseLength - 4);
+  }
+
+  return data[responseLength + 5];
+}
+
+void ESP32BootROMClass::writeEscapedBytes(const uint8_t* data, uint16_t length)
+{
+  uint16_t written = 0;
+
+  while (written < length) {
+    uint8_t b = data[written++];
+
+    if (b == 0xdb) {
+      _serial->write(0xdb);
+      _serial->write(0xdd);
+    } else if (b == 0xc0) {
+      _serial->write(0xdb);
+      _serial->write(0xdc);
+    } else {
+      _serial->write(b);
+    }
+  }
+}
+
+ESP32BootROMClass ESP32BootROM(SerialNina, NINA_GPIO0, NINA_RESETN);

Adafruit_ESP32_Arduino_Demos/ESP32_FirmwareUpdater/ESP32BootROM.h

@@ -0,0 +1,56 @@
+/*
+  ESP32BootROM - part of the Firmware Updater for the 
+  Arduino MKR WiFi 1010, Arduino MKR Vidor 4000, and Arduino UNO WiFi Rev.2.
+  
+  Copyright (c) 2018 Arduino SA. All rights reserved.
+  
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+  
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+  
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#include <Arduino.h>
+
+class ESP32BootROMClass {
+  public:
+    ESP32BootROMClass(HardwareSerial& hwSerial, int gpio0Pin, int resetnPin);
+
+    int begin(unsigned long baudrate);
+    void end();
+
+    int beginFlash(uint32_t offset, uint32_t size, uint32_t chunkSize);
+    int dataFlash(const void* data, uint32_t length);
+    int endFlash(uint32_t reboot);
+
+    int md5Flash(uint32_t offset, uint32_t size, uint8_t* result);
+
+  private:
+    int sync();
+    int changeBaudrate(unsigned long baudrate);
+    int spiAttach();
+
+    void command(int opcode, const void* data, uint16_t length);
+    int response(int opcode, unsigned long timeout, void* body = NULL);
+
+    void writeEscapedBytes(const uint8_t* data, uint16_t length);
+
+  private:
+    HardwareSerial* _serial;
+    int _gpio0Pin;
+    int _resetnPin;
+
+    uint32_t _flashSequenceNumber;
+    uint32_t _chunkSize;
+};
+
+extern ESP32BootROMClass ESP32BootROM;

Adafruit_ESP32_Arduino_Demos/ESP32_FirmwareUpdater/ESP32_FirmwareUpdater.ino

@@ -0,0 +1,101 @@
+/*
+  FirmwareUpdater - Firmware Updater for the 
+  Arduino MKR WiFi 1010, Arduino MKR Vidor 4000, and Arduino UNO WiFi Rev.2.
+  
+  Copyright (c) 2018 Arduino SA. All rights reserved.
+  
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+  
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+  
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#include "ESP32BootROM.h"
+#include <SD.h>
+
+static const int MAX_PAYLOAD_SIZE = 1024;
+uint32_t firmsize;
+static uint8_t payload[MAX_PAYLOAD_SIZE];
+
+#define SD_CS         32       
+File myFile;
+
+void setup() {
+  Serial.begin(115200);
+  while (!Serial);
+  delay(100);
+  
+  if (!SD.begin(SD_CS)) {
+    Serial.println("Card init. failed!");
+    while (1);
+  } else {
+    Serial.println("SD OK!");
+  }
+
+  
+  myFile = SD.open("/NINAW102.bin", FILE_READ);
+  if (!myFile) {
+    Serial.println("Failed to open firmware file");
+    while (1);
+  }
+  firmsize = myFile.size();
+  Serial.print(firmsize); Serial.println(" bytes");
+
+}
+
+void loop() {
+    while (!ESP32BootROM.begin(921600)) {
+    Serial.println("Unable to communicate with ESP32 boot ROM!");
+    delay(100);
+    return;
+  }
+  Serial.println("Ready!");
+
+  uint32_t timestamp = millis();
+
+  while (!ESP32BootROM.beginFlash(0, firmsize, MAX_PAYLOAD_SIZE)) {
+    Serial.println("Failed to erase flash");
+    delay(100);
+    return;
+  }
+  Serial.println("Erase OK");
+
+  for (uint32_t i=0; i<firmsize; i+=MAX_PAYLOAD_SIZE) {
+    memset(payload, 0xFF, MAX_PAYLOAD_SIZE);
+    uint32_t num_read = myFile.read(&payload, MAX_PAYLOAD_SIZE);
+    Serial.print("Packet #"); Serial.print(i/MAX_PAYLOAD_SIZE); Serial.print(": ");
+    Serial.print(num_read); Serial.print(" byte payload...");
+
+    if (!ESP32BootROM.dataFlash(payload, MAX_PAYLOAD_SIZE)) {
+      Serial.print("Failed to flash data");
+      while (1);
+    } else {
+      Serial.println("OK");
+    }
+  }
+
+  myFile.close();
+  
+  uint8_t md5[16];
+  if (!ESP32BootROM.md5Flash(0, firmsize, md5)) {
+    Serial.println("Error calculating MD5");
+  } else {
+    Serial.print("MD5 OK: ");
+    for (int i=0; i<16; i++) {
+      Serial.print("0x"); Serial.print(md5[i], HEX); Serial.print(" ");
+    }
+    Serial.println();
+  }
+
+  Serial.print("Took "); Serial.print(millis()-timestamp); Serial.println(" millis");
+  while (1);
+}

Adafruit_ESP32_Arduino_Demos/ESP32_FirmwareUpdater/Endianess.cpp

@@ -0,0 +1,61 @@
+/*
+  Endianess.ino - Network byte order conversion functions.
+  Copyright (c) 2015 Arduino LLC.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+#include <Arduino.h>
+
+bool isBigEndian() {
+  uint32_t test = 0x11223344;
+  uint8_t *pTest = reinterpret_cast<uint8_t *>(&test);
+  return pTest[0] == 0x11;
+}
+
+uint32_t fromNetwork32(uint32_t from) {
+  static const bool be = isBigEndian();
+  if (be) {
+    return from;
+  } else {
+    uint8_t *pFrom = reinterpret_cast<uint8_t *>(&from);
+    uint32_t to;
+    to = pFrom[0]; to <<= 8;
+    to |= pFrom[1]; to <<= 8;
+    to |= pFrom[2]; to <<= 8;
+    to |= pFrom[3];
+    return to;
+  }
+}
+
+uint16_t fromNetwork16(uint16_t from) {
+  static bool be = isBigEndian();
+  if (be) {
+    return from;
+  } else {
+    uint8_t *pFrom = reinterpret_cast<uint8_t *>(&from);
+    uint16_t to;
+    to = pFrom[0]; to <<= 8;
+    to |= pFrom[1];
+    return to;
+  }
+}
+
+uint32_t toNetwork32(uint32_t to) {
+  return fromNetwork32(to);
+}
+
+uint16_t toNetwork16(uint16_t to) {
+  return fromNetwork16(to);
+}

Adafruit_ESP32_Arduino_Demos/SerialESPPassthrough/SerialESPPassthrough.ino

@@ -71,6 +71,8 @@ unsigned long baud = 115200;
   #define ESP32_RESETN   5   // Reset pin
   #define ESP32_GPIO0   -1   // Not connected
   #define NEOPIXEL_PIN   8
+#elif defined(ADAFRUIT_PYPORTAL)
+  #define NEOPIXEL_PIN   2
 #endif
 
 Adafruit_NeoPixel pixel = Adafruit_NeoPixel(1, NEOPIXEL_PIN, NEO_GRB + NEO_KHZ800);

Adafruit_ESP32_Arduino_Demos/streaming_podcast_player/arduino_secrets.h

@@ -0,0 +1,2 @@
+#define SECRET_SSID "ssid"
+#define SECRET_PASS "password"

Adafruit_ESP32_Arduino_Demos/streaming_podcast_player/streaming_podcast_player.ino

@@ -0,0 +1,284 @@
+// Stream MP3s over WiFi on Metro M4 Express and play via music maker shield
+
+//#define DEBUG_OUTPUT
+
+#include <ArduinoHttpClient.h>
+#include <WiFiNINA.h>
+#include <CircularBuffer.h>  // From Agileware
+#include "Adafruit_MP3.h"
+#include "arduino_secrets.h" 
+
+///////please enter your sensitive data in the Secret tab/arduino_secrets.h
+char ssid[] = SECRET_SSID;        // your network SSID (name)
+char pass[] = SECRET_PASS;    // your network password (use for WPA, or use as key for WEP)
+
+// Use ~64Kbps streams if possible, 128kb+ is too much data ;)
+
+// CircuitPython weekly
+//const char *xmlfeed = "http://adafruit-podcasts.s3.amazonaws.com/circuitpython_weekly_meeting/audio-podcast.xml";
+const char *xmlfeed = "http://www.2600.com/oth.xml"; // yay they have a 16 kbps
+
+// Too high bitrate!
+//const char *xmlfeed = "http://feeds.soundcloud.com/users/soundcloud:users:93913472/sounds.rss";
+//const char *xmlfeed = "https://theamphour.com/feed/";
+
+/************* WiFi over ESP32 client for MP3 datastream */
+WiFiClient http_client; // Use WiFiClient class to create HTTP/TCP connection
+WiFiSSLClient https_client; // Use WiFiClient class to create HTTP/TCP connection
+char *stream_host, *stream_path;
+int stream_port = 80;
+
+/************* Native MP3 decoding supported on M4 chips */
+Adafruit_MP3 player;  // The MP3 player
+#define BUFFER_SIZE 8000     // we need a lot of buffer to keep from underruns! but not too big?
+CircularBuffer<uint8_t, BUFFER_SIZE> buffer;
+bool paused = true;
+float gain = 1;
+
+void setup() {
+  Serial.begin(115200);
+  while (!Serial);
+  delay(100);
+  Serial.println("\nAdafruit Native MP3 Podcast Radio");
+
+  /************************* INITIALIZE WIFI */
+  Serial.print("Connecting to SSID "); Serial.println(ssid);
+  WiFi.begin(ssid, pass);
+  
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(500);
+    Serial.print(".");
+  }
+  Serial.print("WiFi connected. ");  
+  Serial.print("My IP address: ");  Serial.println(WiFi.localIP());
+
+
+  char *mp3_stream, *pubdate;
+  getLatestMP3(xmlfeed, &mp3_stream, &pubdate);
+  Serial.println(mp3_stream);
+  Serial.println(pubdate);
+
+  splitURL(mp3_stream, &stream_host, &stream_port, &stream_path);
+  if (stream_port == 443) {
+    Serial.println("We don't support SSL MP3 playback, defaulting back to port 80");
+    stream_port = 80;
+  }
+  player.begin();
+
+  //do this when there are samples ready
+  player.setSampleReadyCallback(writeDacs);
+
+  //do this when more data is required
+  player.setBufferCallback(getMoreData);
+
+  analogWrite(A0, 2048);
+  player.play();
+  player.pause();
+  
+
+  connectStream();
+}
+
+bool getLatestMP3(String xmlfeed, char **mp3_url, char **date_str) {
+  char *xml_host, *xml_path;
+  int xml_port = 80;
+
+  bool found_mp3=false, found_date=false;
+
+  splitURL(xmlfeed, &xml_host, &xml_port, &xml_path);
+        
+  Serial.print("XML Server: "); Serial.println(xml_host);
+  Serial.print("XML Port #"); Serial.println(xml_port);  
+  Serial.print("XML Path: "); Serial.println(xml_path);
+
+  WiFiClient *xml_client;
+  if (xml_port == 443) {
+      xml_client = &https_client;
+  } else {
+      xml_client = &http_client;
+  }
+  
+  if (!xml_client->connect(xml_host, xml_port)) {
+    Serial.println("Connection failed");
+    return false;
+  }
+
+  // We now create a URI for the request
+  Serial.print("Requesting XML URL: "); Serial.println(xml_path);
+  
+  // This will send the request to the server
+  xml_client->print(String("GET ") + xml_path + " HTTP/1.1\r\n" +
+                    "Host: " + xml_host + "\r\n" + 
+                    "Connection: close\r\n\r\n");
+
+  while (xml_client->connected()) {
+    if (!xml_client->available()) { continue; }
+    char c = xml_client->read();    
+    Serial.print(c);
+    if (c == '<') {
+      String tag = xml_client->readStringUntil('>');
+      Serial.print(tag);
+
+      if (!found_mp3 && (tag.indexOf("enclosure") != -1)) {  // get first enclosure
+        int i = tag.indexOf("url=\"");
+        if (i == -1) continue;
+        tag = tag.substring(i+5);
+        int end = tag.indexOf("\"");
+        if (end == -1) continue;
+        tag = tag.substring(0, end);
+        *mp3_url = (char *)malloc(tag.length()+1);
+        tag.toCharArray(*mp3_url, tag.length()+1);
+        // Serial.print("****"); Serial.println(*mp3_url);
+        found_mp3 = true;
+      }
+      
+      if (!found_date && (tag.indexOf("pubDate") != -1)) {  // get first pubdate
+        String date = xml_client->readStringUntil('<');
+        *date_str = (char *)malloc(date.length()+1);
+        date.toCharArray(*date_str, date.length()+1);
+        //  Serial.print("****"); Serial.println(*date_str);
+        found_date = true;
+      }
+    }
+    if (found_date && found_mp3) {
+       break;
+    }
+  }
+  xml_client->stop();
+  return (found_date && found_mp3);
+}
+
+void connectStream(void) {
+  http_client.stop();
+  /************************* INITIALIZE STREAM */
+  Serial.print("Stream Server: "); Serial.println(stream_host);
+  Serial.print("Stream Port #"); Serial.println(stream_port);  
+  Serial.print("Stream Path: "); Serial.println(stream_path);
+  
+  if (!http_client.connect(stream_host, stream_port)) {
+    Serial.println("Connection failed");
+    while (1);
+  }
+  
+  // We now create a URI for the request
+  Serial.print("Requesting URL: "); Serial.println(stream_path);
+  
+  // This will send the request to the server
+  http_client.print(String("GET ") + stream_path + " HTTP/1.1\r\n" +
+                    "Host: " + stream_host + "\r\n" + 
+                    "Connection: close\r\n\r\n");
+}
+
+
+void loop() {
+  if (!http_client.connected()) {
+    connectStream();
+  }
+#ifdef DEBUG_OUTPUT
+  Serial.print("Client Avail: "); Serial.print(http_client.available());
+  Serial.print("\tBuffer Avail: "); Serial.println(buffer.available());
+#endif
+  int ret = player.tick();
+
+  if (ret != 0) {   // some error, best to pause & rebuffer
+    Serial.print("MP3 error: "); Serial.println(ret);
+    player.pause(); paused = true;
+  }
+  if ( paused && (buffer.size() > 6000)) {  // buffered, restart!
+    player.resume(); paused = false;
+  }
+
+  // Prioritize reading data from the ESP32 into the buffer (it sometimes stalls)
+  if (http_client.available() && buffer.available()) {
+   
+    uint8_t minibuff[BUFFER_SIZE];
+
+    int bytesread = http_client.read(minibuff, buffer.available());
+#ifdef DEBUG_OUTPUT
+    Serial.print("Client read: "); Serial.print(bytesread);
+#endif
+
+    noInterrupts();
+    for (int i=0; i<bytesread; i++) {
+      buffer.push(minibuff[i]);      // push every byte we read
+    }
+    interrupts();
+#ifdef DEBUG_OUTPUT
+    Serial.println(" OK");
+#endif
+  }
+}
+
+
+void writeDacs(int16_t l, int16_t r){
+  uint16_t val = map(l, -32768, 32767, 0, 4095 * gain);
+  analogWrite(A0, val);
+}
+
+
+int getMoreData(uint8_t *writeHere, int thisManyBytes){
+#ifdef DEBUG_OUTPUT
+  Serial.print("Wants: "); Serial.print(thisManyBytes);
+#endif 
+  int toWrite = min(buffer.size(), thisManyBytes);
+#ifdef DEBUG_OUTPUT
+  Serial.print(" have: "); Serial.println(toWrite);
+#endif 
+  // this is a bit of a hack but otherwise the decoder chokes
+  if (toWrite < 128) {
+    //return 0;    // we'll try again later!
+  }
+  for (int i=0; i<toWrite; i++) {
+    writeHere[i] = buffer.shift();
+  }
+  return toWrite;
+}
+
+
+bool splitURL(String url, char **host, int *port, char **path){
+  Serial.println(url);
+  if (url.startsWith("http://")) {
+    Serial.println("Regular HTTP stream");
+    url = url.substring(7);
+    *port = 80;
+  }
+  if (url.startsWith("https://")) {
+    Serial.println("Secure HTTPS stream");
+    url = url.substring(8);
+    *port = 443;
+  }
+
+  // extract host before port
+  int colon = url.indexOf(':');
+  int slash = url.indexOf('/');
+  if ((slash != -1) && (colon != -1) && (colon < slash)) {
+    String host_str = url.substring(0, colon);
+    *host = (char *)malloc(host_str.length()+1);
+    host_str.toCharArray(*host, host_str.length()+1);
+    url = url.substring(colon+1);
+    // extract port before /
+    slash = url.indexOf('/');
+    if (slash != -1) {
+      String port_str = url.substring(0, slash);
+      *port = port_str.toInt();
+    } else {
+      Serial.println("Couldn't locate path /");
+      return false;
+    }
+    url = url.substring(slash);
+  } else {
+    // extract host before /
+    slash = url.indexOf('/');
+    if (slash != -1) {
+      String host_str = url.substring(0, slash);
+      *host = (char *)malloc(host_str.length()+1);
+      host_str.toCharArray(*host, host_str.length()+1);
+      url = url.substring(slash);
+    } else {
+      Serial.println("Couldn't locate path /");
+      return false;
+    }
+  }
+  *path = (char *)malloc(url.length()+1);
+  url.toCharArray(*path, url.length()+1);
+}

Adafruit_IoT_Camera_EyeFi/Adafruit_EyeFi/Adafruit_EyeFi.ino

@@ -63,7 +63,7 @@ http://www.adafruit.com/products/14
 
 // Green LED does a "sleep throb" when camera is idle.  This table
 // contains the brightness levels over time (reverse for second half).
-PROGMEM byte sleepTab[] = {
+const PROGMEM byte sleepTab[] = {
       0,   0,   0,   0,   0,   0,   0,   0,   0,   1,
       1,   1,   2,   3,   4,   5,   6,   8,  10,  13,
      15,  19,  22,  26,  31,  36,  41,  47,  54,  61,

Adafruit_MTK3329_GPS/GPStest/GPStest.ino

@@ -1,10 +1,10 @@
-/ Test code for Adafruit GPS modules using MTK driver
+// Test code for Adafruit GPS modules using MTK driver
 // such as www.adafruit.com/products/660 (discontinued)
 // For new use see www.adafruit.com/products/746 (needs different code)
 // help support open source hardware & software! -adafruit
 
-#include <SoftSerial.h>
-SoftSerial mySerial(2, 3);
+#include <SoftwareSerial.h>
+SoftwareSerial mySerial(2, 3);
 
 // Connect the GPS Power pin to 3.3V
 // Connect the GPS Ground pin to ground

Adafruit_Tweet_Receipt/Gutenbird/Gutenbird.ino

@@ -131,7 +131,7 @@ unsigned long
   currentTime = 0L;
 EthernetClient
   client;
-PROGMEM byte
+const PROGMEM byte
   sleepTab[] = { // "Sleep throb" brightness table (reverse for second half)
       0,   0,   0,   0,   0,   0,   0,   0,   0,   1,
       1,   1,   2,   3,   4,   5,   6,   8,  10,  13,

All_Seeing_Skull/All_Seeing_Skull.ino

@@ -199,10 +199,9 @@ void setup(void) {
   // from either mirrorOLED[] (first eye) or rotateOLED[] (others).
   // The OLED library doesn't normally use the remap reg (TFT does).
   for(e=0; e<NUM_EYES; e++) {
-    eye[e].display->writeCommand(SSD1351_CMD_SETREMAP);
-    eye[e].display->writeData(e ?
-      rotateOLED[eyeInfo[e].rotation & 3] :
-      mirrorOLED[eyeInfo[e].rotation & 3]);
+    uint8_t d = e ? rotateOLED[eyeInfo[e].rotation & 3] :
+                    mirrorOLED[eyeInfo[e].rotation & 3];
+    eye[e].display->sendCommand(SSD1351_CMD_SETREMAP, &d, 1);
   }
 #endif
 

Bluetooth_NeoMatrix_Snowflake/basic/basic.ino

@@ -273,6 +273,7 @@ void SnowFlake12(uint32_t c){
  
 }
  
+/*
 void showAllSnowflakes(uint32_t c){
         SnowFlake1(matrix.Color(red, green, blue));
         matrix.show(); // This sends the updated pixel colors to the hardware.
@@ -322,3 +323,4 @@ void showAllSnowflakes(uint32_t c){
         matrix.show(); // This sends the updated pixel colors to the hardware.
         delay(500); 
 }
+*/