Go Down

Topic: HAND HEILD MACHINE (Read 2117 times) previous topic - next topic

liudr

If you didn't need a large keypad like 5*6, I'd recommend my serial LCD with keypad connector. It only has 4*4 keypad capability at the moment (capable of 5*6 with some minimal mod). With these many devices, I would keep printer and SD card access on main arduino and possibly set up a second arduino to handle LCD and keypad. That is the easiest path for separating interface from actual functionality. If you mix the two, with all your hardware factors, you will dig a big hole to sink a lot of your time. With a separate interface, you may use serial monitor to simulate it while making the main functions to work. You can then separately develop or purchase a serial lcd keypad and complete the project.

Go Up
 


Please enter a valid email to subscribe

Confirm your email address

We need to confirm your email address.
To complete the subscription, please click the link in the email we just sent you.

Thank you for subscribing!

Arduino
via Egeo 16
Torino, 10131
Italy