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SPECTRA-VASC-

Dharshantech17·SPECTRA-VASC-·pcb/layout/SPECTRA-VASC_Wearable.kicad_pcb

SPECTRA-VASC- PCB layout, top view — open source ESP32 board by Dharshantech17

About the SPECTRA-VASC- PCB

SPECTRA-VASC- is an open source ESP32 PCB design by Dharshantech17, published on GitHub under the MIT license. It is a 4-layer board measuring 38 × 32.5 mm, with 5 components from 5 distinct parts.

Its main chip is the ESP32-S3-WROOM-1, from the ESP32 family. Other key parts include the MAX30101, AD8232 and AD5940. By type, the board carries 4 ICs and 1 connector.

It belongs with the iot & wireless and wearables designs in this gallery.

From the project

Project: SPECTRA-VASC — Continuous Non-Invasive Optical & Bio-Impedance Microvascular Diagnostic Wearable Competition: Vishwakarma Awards 2026–27 | Stage 2 Hardware Submission Team: TECHTONICS Theme: Theme 8: Frontier Diagnostics | Host: Ashoka University PCB Revision: Rev A Desi

Project: SPECTRA-VASC — Continuous Non-Invasive Optical & Bio-Impedance Microvascular Diagnostic Wearable Competition: Vishwakarma Awards 2026–27 | Stage 2 Hardware Submission Team: TECHTONICS Theme: Theme 8: Frontier Diagnostics | Host: Ashoka University PCB Revision: Rev A Designer: VK26-IITH-SC-0467 EDA Software: KiCad 10.0.3

1. Microcontroller & TinyML Engine (U1: ESP32-S3-WROOM-1): Dual-core Xtensa LX7 @ 240 MHz with 8MB Flash and 8MB PSRAM. Executes INT8 quantized Convolutional Neural Network for real-time Signal Quality Index (SQI) classification and cuffless Pulse Transit Time (PTT)…

SPECTRA-VASC-, from the project README
From the project README

Main components on the SPECTRA-VASC-

ESP32-S3-WROOM-1MAX30101AD8232AD5940

SPECTRA-VASC- bill of materials (BOM)

5 components, 5 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-S3-WROOM-1
U1
1
MAX30101
U2
1
AD8232
U3
1
AD5940
U4
1
USB_C
J1

SPECTRA-VASC- design files

The KiCad project lives in the Dharshantech17/SPECTRA-VASC- repository on GitHub; these links point at the commit this page was built from.

SPECTRA-VASC-: common questions

What microcontroller does the SPECTRA-VASC- use?

The SPECTRA-VASC- is built around the ESP32-S3-WROOM-1, from the ESP32 family.

How big is the SPECTRA-VASC- PCB?

The SPECTRA-VASC- measures 38 × 32.5 mm, has 4 copper layers and is 0.8 mm thick.

How many components are on the SPECTRA-VASC-?

5 components, from 5 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the SPECTRA-VASC- design files?

From the Dharshantech17/SPECTRA-VASC- repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the SPECTRA-VASC- design in my own project?

Yes, under the terms of its MIT license, which Dharshantech17 chose for the repository.

Can I test firmware for the SPECTRA-VASC- without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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