From d71e82081c0a01db9dd0fdd53d141d8e3bab22ed Mon Sep 17 00:00:00 2001
From: James Wood <james@james-wood.com.au>
Date: Mon, 1 Nov 2021 23:16:34 +1100
Subject: [PATCH] Initial commit

---
 .DS_Store               | Bin 0 -> 6148 bytes
 .gitignore              |   5 +++
 .vscode/extensions.json |   7 +++
 include/README          |  39 +++++++++++++++++
 lib/README              |  46 ++++++++++++++++++++
 platformio.ini          |  25 +++++++++++
 src/main.cpp            |  94 ++++++++++++++++++++++++++++++++++++++++
 test/README             |  11 +++++
 8 files changed, 227 insertions(+)
 create mode 100644 .DS_Store
 create mode 100755 .gitignore
 create mode 100755 .vscode/extensions.json
 create mode 100755 include/README
 create mode 100755 lib/README
 create mode 100755 platformio.ini
 create mode 100755 src/main.cpp
 create mode 100755 test/README

diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 0000000000000000000000000000000000000000..df6ccb1de8a9ad9494e654a87294dedb59a2ded7
GIT binary patch
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literal 0
HcmV?d00001

diff --git a/.gitignore b/.gitignore
new file mode 100755
index 0000000..89cc49c
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+.pio
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json
+.vscode/ipch
diff --git a/.vscode/extensions.json b/.vscode/extensions.json
new file mode 100755
index 0000000..0f0d740
--- /dev/null
+++ b/.vscode/extensions.json
@@ -0,0 +1,7 @@
+{
+    // See http://go.microsoft.com/fwlink/?LinkId=827846
+    // for the documentation about the extensions.json format
+    "recommendations": [
+        "platformio.platformio-ide"
+    ]
+}
diff --git a/include/README b/include/README
new file mode 100755
index 0000000..194dcd4
--- /dev/null
+++ b/include/README
@@ -0,0 +1,39 @@
+
+This directory is intended for project header files.
+
+A header file is a file containing C declarations and macro definitions
+to be shared between several project source files. You request the use of a
+header file in your project source file (C, C++, etc) located in `src` folder
+by including it, with the C preprocessing directive `#include'.
+
+```src/main.c
+
+#include "header.h"
+
+int main (void)
+{
+ ...
+}
+```
+
+Including a header file produces the same results as copying the header file
+into each source file that needs it. Such copying would be time-consuming
+and error-prone. With a header file, the related declarations appear
+in only one place. If they need to be changed, they can be changed in one
+place, and programs that include the header file will automatically use the
+new version when next recompiled. The header file eliminates the labor of
+finding and changing all the copies as well as the risk that a failure to
+find one copy will result in inconsistencies within a program.
+
+In C, the usual convention is to give header files names that end with `.h'.
+It is most portable to use only letters, digits, dashes, and underscores in
+header file names, and at most one dot.
+
+Read more about using header files in official GCC documentation:
+
+* Include Syntax
+* Include Operation
+* Once-Only Headers
+* Computed Includes
+
+https://gcc.gnu.org/onlinedocs/cpp/Header-Files.html
diff --git a/lib/README b/lib/README
new file mode 100755
index 0000000..6debab1
--- /dev/null
+++ b/lib/README
@@ -0,0 +1,46 @@
+
+This directory is intended for project specific (private) libraries.
+PlatformIO will compile them to static libraries and link into executable file.
+
+The source code of each library should be placed in a an own separate directory
+("lib/your_library_name/[here are source files]").
+
+For example, see a structure of the following two libraries `Foo` and `Bar`:
+
+|--lib
+|  |
+|  |--Bar
+|  |  |--docs
+|  |  |--examples
+|  |  |--src
+|  |     |- Bar.c
+|  |     |- Bar.h
+|  |  |- library.json (optional, custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html
+|  |
+|  |--Foo
+|  |  |- Foo.c
+|  |  |- Foo.h
+|  |
+|  |- README --> THIS FILE
+|
+|- platformio.ini
+|--src
+   |- main.c
+
+and a contents of `src/main.c`:
+```
+#include <Foo.h>
+#include <Bar.h>
+
+int main (void)
+{
+  ...
+}
+
+```
+
+PlatformIO Library Dependency Finder will find automatically dependent
+libraries scanning project source files.
+
+More information about PlatformIO Library Dependency Finder
+- https://docs.platformio.org/page/librarymanager/ldf.html
diff --git a/platformio.ini b/platformio.ini
new file mode 100755
index 0000000..539124f
--- /dev/null
+++ b/platformio.ini
@@ -0,0 +1,25 @@
+; PlatformIO Project Configuration File
+;
+;   Build options: build flags, source filter
+;   Upload options: custom upload port, speed and extra flags
+;   Library options: dependencies, extra library storages
+;   Advanced options: extra scripting
+;
+; Please visit documentation for the other options and examples
+; https://docs.platformio.org/page/projectconf.html
+
+[env:due]
+platform = atmelsam
+board = dueUSB
+framework = arduino
+lib_deps =
+    mheironimus/Joystick @ ^2.0.7
+    paulstoffregen/Encoder @ ^1.4.1
+    ; nicohood/HID-Project @ ^2.6.1
+monitor_speed = 115200
+; monitor_port = /dev/tty.usbmodemHIDPE1
+upload_port = /dev/tty.usbmodem22301
+monitor_port = /dev/tty.usbmodem22301
+; upload_port = /dev/tty.usbmodem22301
+; monitor_port = /dev/cu.usbmodemHIDAF1
+; upload_port = /dev/cu.usbmodemHIDAF1
\ No newline at end of file
diff --git a/src/main.cpp b/src/main.cpp
new file mode 100755
index 0000000..27cc22c
--- /dev/null
+++ b/src/main.cpp
@@ -0,0 +1,94 @@
+#include <Arduino.h>
+#include <Encoder.h>
+#include <Joystick.h>
+
+#define MAXLAG 5
+#define NUMBEROFENCODERS 5
+#define NUMBEROFBUTTONS 6
+#define BUTTONPRESSTIME 50
+#define BUTTONRELEASETIME 25
+
+const int dataPins[]={28,31,33,35,37};
+const int clockPins[]={29,30,32,34,36};
+const int encButtonPins[]={38,40,42,44,46};
+const int buttonPins[]={2,3,4,5,6,7};
+
+Joystick_ Joystick(JOYSTICK_DEFAULT_REPORT_ID,
+  JOYSTICK_TYPE_GAMEPAD, (NUMBEROFENCODERS * 3) + NUMBEROFBUTTONS, 0,
+  false, false, false, false, false, false,
+  false, false, false, false, false);
+
+enum buttonStates {ready, requested, active, hold};
+buttonStates encButtonState[NUMBEROFENCODERS * 3];
+unsigned long encButtonActiveTime[NUMBEROFENCODERS * 3];
+long reportedPosition[NUMBEROFENCODERS];
+
+// struct RGB {
+//   byte r;
+//   byte g;
+//   byte b;
+// };
+
+// RGB variable = { 255 , 0 , 0 };
+
+Encoder myEnc[NUMBEROFENCODERS] = {
+  Encoder(clockPins[0], dataPins[0]),
+  Encoder(clockPins[1], dataPins[1]),
+  Encoder(clockPins[2], dataPins[2]),
+  Encoder(clockPins[3], dataPins[3]),
+  Encoder(clockPins[4], dataPins[4])
+};
+
+void setup() {
+  for(int i = 0; i<NUMBEROFENCODERS; i++) pinMode(encButtonPins[i], INPUT_PULLUP);
+  for(int i = 0; i<NUMBEROFBUTTONS; i++) pinMode(buttonPins[i], INPUT_PULLUP);
+  Joystick.begin();
+}
+
+void pushEncButton(int buttonNumber){
+  encButtonActiveTime[buttonNumber] = millis();
+  encButtonState[buttonNumber] = active;
+  Joystick.pressButton(buttonNumber);
+}
+
+void releaseEncButton(int buttonNumber){
+  encButtonState[buttonNumber] = hold;
+  encButtonActiveTime[buttonNumber] = millis();
+  Joystick.releaseButton(buttonNumber);
+}
+
+void checkRotary(uint8_t encoderNumber){
+  uint8_t dnBtn = (encoderNumber * 3) + 1;
+  uint8_t upBtn = dnBtn + 1;
+  long encoderPosition = myEnc[encoderNumber].read() / 4;
+  if((encButtonState[upBtn] == ready) && (encoderPosition > reportedPosition[encoderNumber])) {
+    encButtonState[upBtn] = requested;
+    encoderPosition - reportedPosition[encoderNumber] > MAXLAG ? reportedPosition[encoderNumber] = encoderPosition - MAXLAG : reportedPosition[encoderNumber]++;
+  }
+  if((encButtonState[dnBtn] == ready) && (reportedPosition[encoderNumber] > encoderPosition)) {
+    encButtonState[dnBtn] = requested;
+    reportedPosition[encoderNumber] - encoderPosition > MAXLAG ? reportedPosition[encoderNumber] = encoderPosition + MAXLAG : reportedPosition[encoderNumber]--;
+  }
+}
+
+void performPresses(int buttonNumber){
+  if(encButtonState[buttonNumber] == requested) pushEncButton(buttonNumber);
+  if((encButtonState[buttonNumber] == active) && (millis() - encButtonActiveTime[buttonNumber] > BUTTONPRESSTIME)) releaseEncButton(buttonNumber);
+  if((encButtonState[buttonNumber] == hold) && (millis() - encButtonActiveTime[buttonNumber] > BUTTONRELEASETIME)) encButtonState[buttonNumber] = ready;
+}
+
+void loop() {
+  for(int buttonNumber = 0; buttonNumber<NUMBEROFBUTTONS; buttonNumber++){
+    uint8_t buttonOutputNumber = buttonNumber + (NUMBEROFENCODERS * 3);
+    digitalRead(buttonPins[buttonNumber]) ? Joystick.releaseButton(buttonOutputNumber) : Joystick.pressButton(buttonOutputNumber);
+  }
+
+  for(int encoderNumber = 0; encoderNumber<NUMBEROFENCODERS; encoderNumber++){
+    uint8_t encButtonOutputNumber = encoderNumber * 3;
+    digitalRead(encButtonPins[encoderNumber]) ? Joystick.releaseButton(encButtonOutputNumber) : Joystick.pressButton(encButtonOutputNumber);
+    checkRotary(encoderNumber);
+    performPresses((encoderNumber * 3) + 1);
+    performPresses((encoderNumber * 3) + 2);
+    Joystick.sendState();
+  }
+}
\ No newline at end of file
diff --git a/test/README b/test/README
new file mode 100755
index 0000000..b94d089
--- /dev/null
+++ b/test/README
@@ -0,0 +1,11 @@
+
+This directory is intended for PlatformIO Unit Testing and project tests.
+
+Unit Testing is a software testing method by which individual units of
+source code, sets of one or more MCU program modules together with associated
+control data, usage procedures, and operating procedures, are tested to
+determine whether they are fit for use. Unit testing finds problems early
+in the development cycle.
+
+More information about PlatformIO Unit Testing:
+- https://docs.platformio.org/page/plus/unit-testing.html