Node.js convert hexadecimal number to byteArray

node.js buffer
GingerJim picture GingerJim · Sep 18, 2013 · Viewed 46.6k times · Source

I want to send a raw buffer using bluetooth connection. The content is a hex number. Currently I split the number manually to an byte array. Is there any function that can help me convert the number to byte array?

//var data = 0x250001000192CD0000002F6D6E742F72;
var data = new Buffer([0x25,0x00,0x01,0x00,0x01,0x92,0xCD,0x00,0x00,0x00,0x2F,0x6D,0x6E,0x74,0x2F,0x72]);
serialPort.write(data);

Answer

Brad picture Brad · Dec 10, 2016

In new versions of node (6+) the new Buffer() interface is deprecated. Use:

Buffer.from("250001000192CD0000002F6D6E742F72", "hex")

instead.

Find more info on this using this link below https://nodejs.org/api/buffer.html#buffer_static_method_buffer_from_string_encoding

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