I did and same erro:
var str = "0184008000280000000000009a102404";
var a = [];
for (var i = 0; i <str.length; i += 2)
a.push("0x"+ str.substr (i, 2));
console.log(a);
c.write(a);
c.pipe();
Code:
net.js:450
throw new TypeError("First argument must be a buffer or a string.");
^
TypeError: First argument must be a buffer or a string.
at Socket.write (net.js:450:11)
at Socket.<anonymous> (/var/www/node.js:34:7)
at Socket.emit (events.js:67:17)
at TCP.onread (net.js:367:14)
Em quinta-feira, 5 de setembro de 2013 16h22min41s UTC-3, Felipe Silveira
escreveu:
>
> Hello Guys,
>
> I'm making a small server that listens for requests and responds devices.
> The Code is this:
>
> Now I can read the data received on the server but when I send them,
> transform them from HEX to Byte, follow the lines of code
>
> var str = '0184008000280000000000009a102404 ";
> var a = [];
>
> for (var i = 0; i <str.length; i + = 2) {
> a.push ("0x" + str.substr (i, 2));
> }
>
>
> but nodejs give the error:
>
> net.js: 450
> throw new TypeError ("First argument must be a buffer or a string.");
> ^
> TypeError: First argument must be a buffer or a string.
> at Socket.write (net.js: 450:11)
> at Socket. <anonymous> (/ var / www / node.js: 35:7)
> at Socket.emit (Events.js: 67:17)
> at TCP.onread (net.js: 367:14)
>
> Someone knows the solution?
> Thank you a lot for pacient.
>
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