Using "ble_nus_c_string_send" to send a long hex number

RE: Using "ble_nus_c_string_send" to send a long hex number

Roger Clark — Thu, 27 Jul 2017 00:00:03 GMT

Length in bytes

e.g. unit32_t would be 4 bytes

You can also get this using sizeof

RE: Using "ble_nus_c_string_send" to send a long hex number

tolab — Wed, 26 Jul 2017 23:52:42 GMT

The function calls for the length of the message as one of its arguments. Is this referring to the length of the array, or the length of the number in bits?

RE: Using "ble_nus_c_string_send" to send a long hex number

Roger Clark — Wed, 26 Jul 2017 22:34:16 GMT

You can just pass a pointer to the "large hex number", however you will need to deal with the "endianness" of the data when its received.

Or you could copy the number e.g. unit32_t to a array of bytes, byte by byte in the order in which your receiver expects the int to be formatted.