How to convert char array to hex or binary

[xpolhecx]

Hi

I need to convert unsigned char buttons[8] to either

1) binary
2) hex
3) decimal

Any ideas?

Code: Select all

unsigned char buttons[8] = {'1','0','0','1','1','1','0','1'};

// send as binary
usb_write_buffer[0] = 0b10011101;

// send as hex
usb_write_buffer[1] = 0x9D;

// send as decimal
usb_write_buffer[2] = 240;

while(!HID_Write(&usb_write_buffer,3));

Binary = 10011101
Decimal = 240
Hex = 0x9D

[Sparky1039]

To convert a string literal numeric character subtract dec 48 from each to get the pure binary value of 0x00 and 0x01 respectively.
USBtx_Buff = buttons[x] - 48;

[xpolhecx]

Thank you for your response It works

[Yako]

Difficult, resourceful, quirky and you wouldn't do it.