ARDU-8051 Virtual Lab | ADC0804 Experiment

🎯 Experiment Objective

To understand analog-to-digital conversion using ADC0804 and observe how an analog voltage is converted into an 8-bit digital value and read by the 8051 Port-0.

🧪 Analog Input (ADC0804)

Analog Voltage (0–5V)

Analog Value (8-bit): 0

Equivalent Voltage: 0.00 V

📟 Port-0 Output (P0.7 … P0.0)

Binary: 00000000
HEX: 00h

🧠 Working Principle

ADC0804 converts analog voltage to 8-bit digital data
Digital output is connected to Port-0
Higher voltage → higher binary value
Each LED represents one bit of Port-0

💻 Sample 8051 Assembly Code

ORG 0000H
MAIN:
  MOV P0, #0FFH   ; Configure P0 as input
HERE:
  MOV A, P0     ; Read ADC data
  SJMP HERE
END

In real hardware, ADC0804 control signals (WR, RD, INTR) manage conversion timing. This virtual lab focuses on data interpretation.