EMG PCB

[P7R7M]

The EMG sensor will basically be a custom version of this Myoware muscle sensor. We will be taking the raw EMG signal from the EMG electrodes, running it through a rectifier and a filter, then using an analog-to-digital converter for the microcontroller/RaspberryPi to use for the software team's algorithm.

Myoware Guide

EMG processing using circuits

https://charleslabs.fr/en/project-OpenEMG+Arduino+Sensor

Frequency Domain Intro

Frequency Domain Intro 2

Intro to types of filters

Cutoff frequency

Active op-amp high-pass and low-pass circuit

[P7R7M]

Whoever is doing this needs to design an EMG board so that it can be printed on the voltera. It should be a two layer board, here are some building constraints https://docs.voltera.io/v-one/v-one-fundamentals/circuit-design-guidelines, and an example board is here https://charleslabs.fr/en/project-OpenEMG+Arduino+Sensor

[sethwobig3]

EMG parts based on Charles Lab surface mount design: https://docs.google.com/spreadsheets/d/1GXmlTlyWqPjLi16XgMQEayzVkyHjtmpGHZKpF-S9OZY/edit?usp=sharing

[P7R7M]

Just adding a note that our eventual goal is to have one board reading multiple emg's at the same time

[stran47]

circuit design of PCB board from 3110 quant lab (what we've been using for EMG so far); need to design with just the essentials (blue boxes)