DigiSpark ATTINY85 Micro USB to prevent PC going sleep

DigiMouseWiggler.iso

// DigiMouse Mouse Wiggler
// Originally wrote by Jeff White ([email protected])
// MIT License

// to write
// 1. Start without inserting Digispark.
// 2. When you see "Please plug in the device ... " message, insert Degispark.

// setting: set "mode" 0 or 1
// see http://digistump.com/wiki/digispark/tutorials/modelbi2c

#include "DigiMouse.h"

unsigned int mode = 1;  //1 or 0: LED is connected pin0 or pin1 depend on model
unsigned int moveamount_px = 1;
unsigned int time_led_flash = 100; // ms
unsigned int time_waitnext = 1000000; // ms

void setup() {
  pinMode(mode, OUTPUT);
  DigiMouse.begin();
}

void LEDon() {
  digitalWrite(mode, HIGH);
}

void LEDoff() {
  digitalWrite(mode, LOW);
}

void loop() {
  LEDon();
  DigiMouse.moveX(moveamount);
  DigiMouse.delay(time_led_flash);
  DigiMouse.moveX(-moveamount);
  LEDoff();
  DigiMouse.delay(time_waitnext);
}