c program for MCU to covert number between hex and decimal. Decoder for 7 segment LED with hex or decimal number.

将16进制的txt文件转换成2进制的txt文件-To 16 hex txt file convert binary txt file

ASCII码转16进制数，即文本字符转16进制数据，文本以任意非0~9 ，a~z,A~Z分割均可(ASCII code to 16 decimal number, that is, text characters to 16 decimal data, the text to any non 0~9, a~z, A~Z segmentation can be)