Arduino UNO R4 WiFi ┌─────────────────┐ │ │ │ A0 ────────────┼──── Water Sensor Signal │ │ │ D8 ────[220Ω]──┼──── Red LED ──── GND │ │ │ D9 ────────────┼──── Active Buzzer (+) │ │ │ │ GND ...
BB5 Register A A 4-bit register with bus transceiver for accumulator BB6 Register B A 4-bit register with bus transceiver for the second operand BB7 ALU & Bus Interface The 4-bit ALU (74LS181) and a ...
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