Hi Folk,
I'm going to build a control system. And I want to find a low cost integrated LED/LCD (with one or 2 line is enough) display with a numeric keypad that can connected using RS232 interface (or USB). It seems that there are many separate RS232 numeric keypad and simple LCD/LED display, but not an integrated one. Could anybody point me some if you know such product. Many thanks.
Rgds, K.Lam