Question

I’m sending five bytes to an Arduino:

byte[] { 0xF1, byte1, byte2, byte3, 0x33 }

The values of byte1, byte2 and byte3 are dynamic. The first and last bytes are always the same.

Byte values are from 0 to 255.

How can I simply convert ints to bytes and put them into my byte array?

Answer 1

If you are sure that your values won’t exceed the byte range [0, 255], you can simply cast them:

byte[] b = { 0xF1, (byte)byte1, (byte)byte2, (byte)byte3, 0x33 }

In alternative you can use Convert.ToByte, which throws an OverflowException if values are less than 0 or greater than 255.