Design of an Electrocardiograph with Programmable Signal Gain and Adjustable DRL Circuit Gain – for education purposes

The aim of this work is to describe the design of a low-cost electrocardiograph with programmable signal gain, which could be used as an educational project for biomedical engineering students. In designing such a device, students will learn to calculate, simulate, and design analog circuit for signal acquisition and preprocessing (filtering noise and amplifying bioelectric signal). They will learn to program a microcontroller (MCU) and use it for digitizing the analog signal, as well as for transmitting data to a computer.