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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