Design and implementation of 4 channel microcontroller based electromyograph

Muscles generate electrical pulses during contraction. Device used to detect and record muscle electric pulses or signals is the electromyograph or EMG. EMG signals can be used in many applications, whether it has been recorded or displayed/analyzed in real time. Electromyographs (EMG) are rarely available in Indonesia. One of the causes of this rarity might be the high price of the EMG. This condition creates problems such as causing costly diagnosis or research. The goal of this research is to design a low cost, multi-channel microcontroller based EMG system, which can record and store EMG signals. The prototype shows promising result. The four channels can work accordingly, and portability of the prototype can be considered almost as a wearable prototype. Since connection to PC is only a single cable, the subject can position himself away from the PC, making a dynamic muscles recording possible. More works should be done if this prototype wants to be used in the clinical use.