Connect Rest of the connections are manual which we do in our all circuits. Ground Pin 20. Apply 5 volts to pin 31 and VDD pin in Lcd. Connect Oscillator with pin#19 (XTAL-1) and 18 (XTAL-2) of 8051 ...

Electrocardiogram (ECG) monitoring is one of the most important patient vital sign. Many design for ECG amplifier has been established. In this paper we describe a unique design of a single supply ...

• 16×2 lcd to display the outputs. • 4×4, numeric keypad to enter the input. • 8051 (89c52) Microcontroller • Power supply (5 volts) to provide power to lcd. • Crystal Oscillator (12 MHz) responsible ...