59 lines
1.6 KiB
C++
59 lines
1.6 KiB
C++
/*
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Copyright (c) 2014 NicoHood
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See the readme for credit to other people.
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System example
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*/
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// not needed for Leonardo/Micro
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#include <HID.h>
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// for Leonardo/Micro: make sure to activate desired USB functions in HID_Reports.h
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const int pinLed = 13;
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const int pinButton = 8;
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void setup() {
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pinMode(pinLed, OUTPUT);
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pinMode(pinButton, INPUT_PULLUP);
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// Starts Serial at baud 115200. end just ends the Serial
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// Make sure to end your special HIDs before, this does not clear them!
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// You need this baud for the HID library but still can use other bauds
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// without HID functions.
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// not needed for Leonardo/Micro, Serial will not be set
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HID.begin();
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// Sends a clean report to the host. This is important because
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// the 16u2 of the Uno/Mega is not turned off while programming
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// so you want to start with a clear report to avoid strange bugs.
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// its exactly the same like the end() function.
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// You can also unplug the device if anything goes wrong.
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// To prevent the 16u2 to send more reports just pull the Serial TX (pin1) low
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// or see readme for turning off HID functions.
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// If you did anything wrong (keyboard is doing weird stuff)
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// just logout (no shutdown needed).
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System.begin();
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}
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void loop() {
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// press a button to put pc into standby mode
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if (!digitalRead(pinButton)) {
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digitalWrite(pinLed, HIGH);
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// See list below for more definitions or the official usb documentation
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System.write(SYSTEM_SLEEP);
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// simple debounce
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delay(300);
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digitalWrite(pinLed, LOW);
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}
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}
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/*
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Definitions:
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SYSTEM_POWER_DOWN
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SYSTEM_SLEEP
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SYSTEM_WAKE_UP
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*/
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