I am trying to send float values over UART to a PC and reconstruct these float values from their respective char array. How I am transferring the 32-bit float value to char is below:
float value = 42.83f;
unsigned char *ptr = &value;
And in the Python script received value is:
[236, 81, 43, 66, 4, 42]
How can I cast this char array back to 42.83f?
Thank you!
The way I decoded may be strange perhaps but I was receiving two elements more than needed for a float decode. Currently this is my shortcut solution: I pop the last two elements from the list meaning that I have 4 bytes left instead of 6 bytes. Then I use the following code to reconstruct the float value.
print("Processing...")
# process the data block
result_data.pop()
result_data.pop()
bytes_of_result = bytes(result_data)
print(bytes_of_result)
final_value = struct.unpack('f', bytes_of_result)
print(final_value)