Float from HEX

Projects Programming
1

I recive this data {0xF6 0x28 0x3F 0x42}

its a float_32

I converted it to HEX 0x423F28F6 = 47.79 float

How do I convert it to float??

I did this

uint32_t voltage = (uint32_t)incoming[5]<<24 | (uint32_t)incoming[4]<<16 | (uint32_t)incoming[3]<<8 | incoming[2];

and as a result I get this 1111435510 witch is 0x423F28F6 in HEX
but I need 47.79 witch is 0x423F28F6 in HEX

2

Search the forum -- it has been discussed and done many times.

3

and as a result I get this 1111435510 witch is 0x423F28F6 in HEX
but I need 47.79 witch is 0x423F28F6 in HEX

Seems to me that what you get is what you want. If you stored the value in a float instead of a long...

4

solution

  uint32_t data = (uint32_t)incoming[5]<<24 | (uint32_t)incoming[4]<<16 | (uint32_t)incoming[3]<<8 | incoming[2];
  float voltage = *((float *)&data);