title: How to convert a hex string to a uint8_t array? (C language)
body: <p>how can I convert a hex string to a uint8_t array?
  My string is <code>02012B1530A6E3958A98530031902003876940000000000CDF9844173BE512AFFFFFFE11DBBA1F00079387800E13012E11FC017FFFFFFFFE39C10F40</code>
  and I want to convert it into this array:</p>
  <pre><code>uint8_t array_uint[] = {0x02, 0x01, 0x2B, 0x15, 0x30, 0xA6, 0xE3, 0x95, 0x8A, 0x98, 0x53, 0x00, 0x31, 0x90, 0x20, 0x03, 0x87, 0x69, 0x40, 0x00, 0x00, 0x00, 0x00, 0x0C, 0xDF, 0x98, 0x44, 0x17, 0x3B, 0xE5, 0x12, 0xAF, 0xFF, 0xFF, 0xFE, 0x11, 0xDB, 0xBA, 0x1F, 0x00, 0x07, 0x93, 0x87, 0x80, 0x0E, 0x13, 0x01, 0x2E, 0x11, 0xFC, 0x01, 0x7F, 0xFF, 0xFF, 0xFF, 0xFE, 0x39, 0xC1, 0x0F, 0x40};
  </code></pre>
  <p>Thank you for your help!</p>