CSI080/CSI040 Sense/Stim Integration (CCSSI) Project

Description

This project aims to design and fabricate a board to implement both CSI040 and CSI080 chips from Cirtec Medical, for a medical device to stimulate and sense evoked potentials in the brain (via invasive probe).

Components

• CSI040 - Stimulation chip from Cirtec
• CSI080 - Sensing chip from Cirtec
• Adafruit ESP32-S3 Feather - Microcontroller, dual SPI, Wifi and Bluetooth support
• SN74LV1T34DBVR - Level Shifters
• LTC3035EDDB#TRMPBF - Level Dropout Regulator (3V3 -> 1.8V)

Software Tools

• KiCad - PCB Design
• Arduino IDE / VSCode (PlatformIO) - Code prototyping for SPI data transfer

To Run

• To import PCB Designs, clone repo and in KiCAD, Open Project and select the .pro file.