Welcome to Upside Down Labs docs site!

Muscle BioAmp Candy#

Candy-size affordable muscle sensor for precise EMG sensing.

Overview#

A candy-size single-channel ElectroMyography (EMG) sensor for precise recording of muscle signals at an affordable cost. It is an SMD version of Muscle BioAmp BisCute that can be used to make amazing Human-Computer Interface (HCI) projects. 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-Candy-front.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

3.5 x 1.5 cm

Open Source

Hardware + Software

Hardware#

Images below shows a quick overview of the hardware design.

PCB Front

../../../_images/PCBfront.png

PCB Back

../../../_images/PCBback.png
../../../_images/muscle-bioamp-candy-front.png
../../../_images/muscle-bioamp-candy-back.png
../../../_images/dimensions1.png
../../../_images/schematic1.png

Connecting with Arduino#

To get started, you can pair Muscle BioAmp Candy 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, connect BioAmp Cable v3 with your muscle sensor as shown in the image below:

../../../_images/Muscle-BioAmp-Candy-Arduino-EMG-Recording.jpg

CAUTION: Make sure to follow the above diagram while making the connections between your Muscle BioAmp Candy & Arduino (or any other ADC of your choice), especially the GND and VCC else it may damage the muscle sensor.

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.