@echo off
SET portname=COM12
:loop
set /p x="\xc0\x00\x02\xff\xff\xff\xffUS\xc0" <nul >\\.\%portname%
ping -n 2 127.0.0.1 > nul
goto loop

#!/bin/bash
PORT=/dev/ttyACM0
while true
do
 echo -n "\xc0\x00\x02\xff\xff\xff\xffUS\xc0" > $PORT
 sleep 1
done

@echo off
SET hostname=ya.ru
SET portname=COM12
:loop
  ping -n 1 -l 4 -w 1000 %hostname% >nul
  if %errorlevel%==0 set /p x="\xc0\x00\x02\xff\xff\xff\xffUS\xc0" <nul >\\.\%portname%
  ping -n 2 127.0.0.1 > nul
goto loop

#!/usr/bin/env bash
HOST="ya.ru"
PORT=/dev/ttyACM0
while true
do
    if ping -c 1 $HOST; then
    echo -n "\xc0\x00\x02\xff\xff\xff\xffUS\xc0" > $PORT
    fi
sleep 3
done

#!/usr/bin/env bash

PORT=/dev/ttyACM0
PROCESS=crond

if [ ! -z "$1" ];then
	PROCESS="$1"
	echo "Monitor $PROCESS"
fi

while true; do
	if pgrep "$PROCESS" > /dev/null; then
		echo -n "\xc0\x00\x02\xff\xff\xff\xffUS\xc0" > $PORT
	fi
	sleep 3
done

#!/usr/bin/env bash

PORT=/dev/ttyACM0
URL=ya.ru
PROCESS=crond

while getopts ":ha:p:" opt; do
	case ${opt} in
		a)
			URL=$OPTARG
			;;
		p)
			PROCESS=$OPTARG
			;;
		h)
			echo "Usage: $0 -a <url> -p <process>" 1>&2
			exit 1
			;;
		\?)
			echo "Invalid option: -$OPTARG" 1>&2
			exit 1
			;;
	esac
done

echo "Ping $URL"
echo "Monitor $PROCESS"

while true; do
	ping -n -c 1 -w 1 "$URL" 2>/dev/null 1>&2 && pgrep "$PROCESS" 2>/dev/null 1>&2 && echo -n "\xc0\x00\x02\xff\xff\xff\xffUS\xc0" > $PORT
	sleep 3
done

from time import sleep
import serial

port = '/dev/tty.usbmodem14101'
ser = serial.Serial(port, timeout=0.05)

while True:
    ser.write(b'\xc0\x00\x02\xff\xff\xff\xffTR\xc0')
    ser_data = ser.readall()
    if ser_data and ser_data.startswith(b'\xc0'):
        k = int(ser_data[8:12].decode())/10
        c = k - 273
        print('Read from serial: {0}'.format(c))
    sleep(3)

from time import sleep
from binascii import hexlify
import serial

port = '/dev/tty.usbmodem14101'
ser = serial.Serial(port, timeout=0.05)

while True:
    ser.write(b'\xc0\x00\x02\xff\xff\xff\xffLJ\xc0')
    ser_data = ser.readall()
    if ser_data and ser_data.startswith(b'\xc0'):
        print(hexlify(ser_data[8:-2]))
    sleep(3)

//Main settings
#define TIMER_MAX 5500
#define TIMER_DELTA 50
#define RESET_TIME 200
#define POWER_OFF_T1 5000
#define POWER_OFF_DELAY 3000
#define POWER_OFF_T2 200

//hw defines
#define LED_PIN PF0
#define RESET_PIN PA3
#define POWER_PIN PA2
#define LOG_SIZE 50

//global
var led_on();
var counter;
var phase = 0;
var mem_start;
var mem_ptr = 0;

//functions

var led_off(){ 
    LED_PIN.VALUE = 0;
}

var reset() {
    RESET_PIN.VALUE = 0;
    sleep(RESET_TIME);
}

var reboot() {
    led_off();
    POWER_PIN.VALUE = 0;
    sleep(POWER_OFF_T1);
    POWER_PIN.VALUE = 1; 
    sleep(POWER_OFF_DELAY);
    POWER_PIN.VALUE = 0;
    sleep(POWER_OFF_T2);
}

var logger() {
    sprintf(mem_start + mem_ptr, "%p%c", TIME.EPOCH, phase);
    mem_ptr = ((mem_ptr+5) % LOG_SIZE);
}

var reinit() {
    RESET_PIN.VALUE = POWER_PIN.VALUE = 1;
    counter = TIMER_MAX;
    timer(TIMER_MAX, led_on);
}

var get_temp()
{
  DS18.INIT = DS18_PORT_B|8;
  if(DS18.INIT == 1)
  {
    DS18.VALUE = 1;
    delay(100);
    return DS18.VALUE;
   }else
   return 0;
}

var _msg() {
      var c = stoi(&MSG.RX, 'c');
      if (c == 'T') {
        sprintf(&PC.TX, "T%p", get_temp());
      } else
      if (c == 'L') {
          sprintf(&PC.TX, "L%r", mem_start, LOG_SIZE);
      } else
      {
          sprintf(&PC.TX, "%c", c);  // echo
          switch (c) {
              case 'U':
                  counter = TIMER_MAX;
                  break;
              case 'S':
                  tstop(led_on);
                  break;
              case 'R':
                  reset();
                  reinit();
                  break;
              case 'P':
                  reboot();
                  //break;
              case 'E':
                  reinit();
                  break;
              default:
                  break;
          }
      }
}

var led_on() {     
    LED_PIN.VALUE = 1;
    if (counter) {
      __disable_irq();
      counter -= TIMER_DELTA;
      __enable_irq();
      timer(TIMER_DELTA-1, led_off);
      timer(counter, led_on);
    }
    else { //time is up
        logger(); 
        if (phase) {
            reboot();
            phase = 0;
        }
        else {
            reset();
            phase = 1;
        }
        reinit();
    }
}

var main() {
    mem_start = SYS.RAM;
    LED_PIN.MODE = GPIO_MODE_OUTPUT|GPIO_OTYPE_PP|GPIO_INIT_LOW;
    RESET_PIN.MODE = GPIO_MODE_OUTPUT|GPIO_OTYPE_PP|GPIO_INIT_HIGH;
    POWER_PIN.MODE = GPIO_MODE_OUTPUT|GPIO_OTYPE_PP|GPIO_INIT_HIGH;
    memset(mem_start, LOG_SIZE, 0);
    SYS.WDG = 1;   
    reinit();
    while(1){
        delay(1000);
        SYS.WDG = 42;
    }
    return 0;
}