PUSH {R0-R2,R4,R5, LR} ; Saves the context of registers and the Link Register. ; Configures GPIO0 pins 1, 2, 3, and 4 as input pins. This step is critical for setting up the keypad interface, allowing ...

If you're still a member of the hunt-and-peck club, you can save time and increase your productivity by developing solid keyboard skills. In his "Tip o' the Week" blog, Ewan Dalton, who leads the ...

Using eight digital inputs, this circuit simplifies decoding of the common membrane 4x4 keypad matrix and eliminates the traditional requirement of scanning rows or columns. Any X-Y switch matrix, ...

Microsoft’s Bluetooth Mobile Keyboard 6000 is like Apple’s Wireless Keyboard ( ) in that both keyboards are compact, both have low profiles, and both use Bluetooth. The Keyboard 6000 is a good ...

It’s a nice enough keyboard, with no magic whatsoever. Apple’s keyboard isn’t magic. It’s not writing this review for me while I sip a margarita and play Two Dots, and I feel like that would be magic.