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Muscle BioAmp Biscute#

Most affordable DIY Electromyography (EMG) sensor

Overview#

Muscle BioAmp BisCute is an ultra-affordable DIY ElectroMyography (EMG) sensor that allows you to create a Human-Computer Interface (HCI) with ease and in the process of building your own BisCute, you learn what goes into making a functional biopotential amplifier that can be used for amplifying sub mV signals created by muscles inside your body to a level a microcontroller unit (MCU) can understand. To record the EMG signals you can use any standalone ADC like ADS1115 or any microcontroller development board with an ADC of your choice like Arduino UNO/Nano.

../../../_images/Muscle_BioAmp_BisCute.jpg

Features & Specifications#

Minimum Input Voltage

3.3-30 V

Input Impedance

10^11 ohm

Fixed Gain

x2420

Bandpass filter

72 – 720 Hz

Compatible Hardware

Any development board with an ADC (Arduino UNO & Nano, Espressif ESP32, Adafruit QtPy, STM32 Blue Pill, BeagleBone Black, Raspberry Pi Pico, to name just a few)

BioPotentials

EMG (Electromyography)

No. of channels

1

Electrodes

3 (Positive, Negative, and Reference)

Dimensions

3.0 x 4.5 cm

Open Source

Hardware + Software

Hardware#

Images below shows a quick overview of the hardware design.

PCB Front

../../../_images/front.png

PCB Back

../../../_images/back.png
../../../_images/assembled.png
../../../_images/dimensions.png
../../../_images/schematic.png

Assemblying the kit#

You can get your own Muscle BioAmp BisCute bag of parts from our store or Tindie and for assembling your Biscute you can either take a look at this interactive BOM or the step by step guide below.

../../../_images/001_Board.png

Step 1 - Bare Board#

../../../_images/002_100K_Resistor.png

Step 2 - 100K Resistors#

../../../_images/003_10K_Resistors.png

Step 3 - 10K Resistors#

../../../_images/004_1M_Resistors.png

Step 4 - 1M Resistors#

../../../_images/005_330R_Resistors.png

Step 5 - 330R Resistors#

../../../_images/006_220K_Resistor.png

Step 6 - 220K Resistor#

../../../_images/007_4.7nF_Capacitor.png

Step 7 - 4.7nF Capacitor#

../../../_images/008_2.2uF_Capacitor.png

Step 8 - 2.2uF Capacitor#

../../../_images/009_470uF_Capacitor.png

Step 9 - 470uF Capacitor#

../../../_images/010_100nF_Capacitors.png

Step 10 - 100nF Capacitors#

../../../_images/011_1nF_Capacitors.png

Step 11 - 1nF Capacitors#

../../../_images/012_1K_Resistor.png

Step 12 - 1K Resistor#

../../../_images/013_Connector.png

Step 13 - BioAmp Connector#

../../../_images/014_HeaderPin.png

Step 14 - Header Pins#

../../../_images/015_IC.png

Step 15 - IC#

Still can’t figure out the assembly? You can follow this video to assemble your BisCute.

Connecting with Arduino#

After assembling the kit, you can pair it with any development board with an ADC (Arduino UNO & Nano, Espressif ESP32, Adafruit QtPy, STM32 Blue Pill, BeagleBone Black, Raspberry Pi Pico, to name just a few) or any standalone ADC of your choice.

To measure the EMG signals, just connect BioAmp Cable v3 with the Muscle BioAmp BisCute as shown in the image below, and get started.

../../../_images/Electrode_Placement_Example.jpg

Using the Sensor#

Some project ideas#

We have curated a playlist for you which consists some awesome project ideas for you to get started with your next HCI project.