During testing a rotary phone, I ran into problems recognizing pulses.
After some testing brought it down to following samples.
Duration is always much more than expected (by me).
Interesting is last example where only first timeout is wrong.
Testing is done with WebIde. First examples use terminal window for input.
Last testing is uploaded from editor window and called from terminal.
Board is MDBT42Q with 2v06, downloaded from binary
for(var i = 0; i < 10; i++) {var dt = new Date();setTimeout(function(){console.log(new Date() - dt);},1000);}
=undefined
2159.7900390625
2161.0107421875
2162.90283203125
2164.21508789062
2165.67993164062
.....
var dt = new Date();setTimeout(function(){console.log(new Date() - dt);},100);
=1
958.46557617187
>var dt = new Date();setTimeout(function(){console.log(new Date() - dt);},100);
=1
1476.01318359375
>var dt = new Date();setTimeout(function(){console.log(new Date() - dt);},100);
=1
1280.94482421875
>var dt = new Date();setTimeout(function(){console.log(new Date() - dt);},1000);
=1
1865.69213867187
>var dt = new Date();setTimeout(function(){console.log(new Date() - dt);},1000);
=1
2315.673828125
function tst(duration){
var pnt = 0;
function tstTimeout(){
var dt = new Date();
setTimeout(function(){
console.log(new Date() - dt);
if(pnt++ < 4) tstTimeout();
},duration);
}
clearTimeout();
tstTimeout();
}
tst(1000);
=undefined
1828.857421875
1001.43432617187
1001.46484375
1001.43432617187
1001.46484375
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
During testing a rotary phone, I ran into problems recognizing pulses.
After some testing brought it down to following samples.
Duration is always much more than expected (by me).
Interesting is last example where only first timeout is wrong.
Testing is done with WebIde. First examples use terminal window for input.
Last testing is uploaded from editor window and called from terminal.
Board is MDBT42Q with 2v06, downloaded from binary