Fig. 5 shows the circuit diagram of the e-dice, built around ESP32 board, 3-to-8 decoder (IC74LS138 – IC1), Three-input OR gate (4075 – IC2), Five-input NOR gate (74LS260 – IC3), Hex inverter (7404 – ...

Specifically, it is on how to design the state diagram for the interface of the test system and the state diagram for the decoding algorithm. The state design was for the VHDL programming and the ...