wkliang

#!/bin/bash

if [ $1 == 'CH1' ] ;	then # gpio 26, PIN37
 ch=425
elif [ $1 == 'CH2' ] ;	then # gpio 20, PIN38
 ch=419
elif [ $1 == 'CH3' ]; 	then # gpio 21, PIN40
 ch=420
else
 echo "Parameter error"

wkliang

javascript:(function(e, s) {
    e.src = s;
    e.onload = function() {
        alert('gist injected');
    };
    document.head.appendChild(e);
})(document.createElement('script'), 'https://gist.githubusercontent.com/anonymous/d6004fc355bf7c4a41cbfa3d746c350e/raw/591a1c972b33dbef58bdeed7b95560d80b547e85/ek21.js');