#0-99, up-down counter on 8051 microcontroller on 2 multiplexed 7-segments display using two switches using 8051 assembly language in kiel software #count up switch connected to p3.2 and other leg to ...
A previous Design Idea describes a circuit that uses an astable multivibrator to drive an LED (Reference 1). The circuit in Figure 1 uses a simpler alternative approach. The circuit uses a 2N3904 NPN ...