arduino-based hid

hid/.gitignore

@@ -0,0 +1,2 @@
+/.pioenvs/
+/.piolibdeps/

hid/Makefile

@@ -0,0 +1,17 @@
+all:
+	@ cat Makefile
+
+build:
+	platformio run
+
+update:
+	platformio platform update
+
+upload:
+	platformio run --target upload
+
+serial:
+	platformio serialports monitor
+
+clean:
+	rm -rf .pioenvs .piolibdeps

hid/platformio.ini

@@ -0,0 +1,16 @@
+; 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
+; http://docs.platformio.org/page/projectconf.html
+
+[env:micro]
+platform = atmelavr
+board = micro
+framework = arduino
+upload_port = /dev/ttyACM0
+monitor_baud = 115200

hid/src/main.cpp

@@ -0,0 +1,38 @@
+#include <Arduino.h>
+#include <Keyboard.h>
+
+#define CMD_SERIAL Serial1
+#define SERIAL_SPEED 115200
+
+#define INLINE inline __attribute__((always_inline))
+
+
+INLINE void cmdResetHid() {
+	Keyboard.releaseAll();
+}
+
+INLINE void cmdKeyEvent() {
+	uint8_t state = Serial.read();
+	uint8_t key = Serial.read();
+	if (state) {
+		Keyboard.press(key);
+	} else {
+		Keyboard.release(key);
+	}
+}
+
+
+void setup() {
+	CMD_SERIAL.begin(SERIAL_SPEED);
+	Keyboard.begin();
+}
+
+void loop() {
+	while (true) {  // fast
+		switch (Serial.read()) {
+			case 0: cmdResetHid(); break;
+			case 1: cmdKeyEvent(); break;
+			default: break;
+		}
+	}
+}