Electronics solutions for prostheses and muscle sensing
Designed to fit your lab:
Wire up your sensors to the dedicated ADC, connect your prosthesis battery and you are ready to log data on the microsd. Fancy Bluetooth for maximum flexibility? Pair the board via BLE, and stream data to your device. The USB is always available to feed data straight into your acquisition suite.
Fully digital system? You can connect your I²C sensors and your CAN driven prosthesis. Want to simulate sensors signals? There's a dual channel DAC that can drive analogue prostheses.
The user friendly programming approach of the Arduino platform will help you focus on what's important: get the work done. The EMG-32 software will be publicly available and examples will be provided for basic use of all the components, providing abstractions from the low-level hardware.
EMG-32 v1
V1
ESP32-S3 microcontroller with Bluetooth 5.3 and WiFi 2.4GHz.
Fully compatible with the Arduino programming environment.
Micro-SD slot.
8 channels 5V 12bit ADC, max 5V in
2 channels 12 bit DAC, with selectable output voltage (3.3V/5V)
I²C data bus.
CAN-BUS.
Screw terminal connectors and 2.54mm headers.
USB Type-C for uploading code and serial communications.
5V to 9V power input, 2A, compatible with batteries.
USB and battery dual-input smart safety circuit.
EMG-32 v2
V2 changelog:
6 layers PCB stackup for improved EMI emissions and resistance.
Better battery power decoupling.
USB fully filtered.
DAC moved to dedicated I²C bus.
Wider range compatibility of the CAN-BUS transceiver.
Added RTC clock for easier monitoring of long-term data.
Added 364/621 coin cell holder for continuative RTC.
Added addressable RGB LED for debugging and user feedback.
EMG-32 v3
V3 changelog:
Smaller micro RGB LED.
Updated DAC, 2x MCP4725.
RTC battery holder is now for LR626 batteries.
Reverse battery protection and bulk capacitors isolation.
USB ESD-discharge protection.
USB current is now limited through a resettable fuse.
3 extra free pins are now exposed and solderable.
New push-buttons with square top for installing a plunger.
