Protocentral Sensything Hardware

Overview

This repository contains the hardware design files for the SensythingES3 family of ESP32-S3 sensor boards from Protocentral Electronics.

Available Hardware Designs

• Sensything CAP: 4-channel capacitance measurement board using FDC1004
• Sensything OX: PPG/SpO2/HR measurement board using AFE4400

You can buy these boards directly from Protocentral using the links above.

All hardware designs are provided as KiCad project files including schematics and PCB layouts.

Software, Examples, and Applications

For all software, Arduino library, examples, and applications, please visit:

🔗 SensythingCore Arduino Library

The SensythingCore library provides:

• Unified API for all Sensything boards
• USB Serial, BLE, and WiFi streaming
• SD Card logging
• Interactive examples and applications
• Complete documentation and getting started guides

Hardware Specifications

SensythingCAP

• ESP32-S3-WROOM-1 module (8MB Flash, 2MB PSRAM)
• FDC1004 capacitance sensor (onboard)
• SD card slot with SDIO interface
• QWIIC I2C connectors
• USB-C for power and data

SensythingOX

• ESP32-S3-WROOM-1 module (8MB Flash, 2MB PSRAM)
• AFE4400 PPG/SpO2 sensor (onboard)
• SD card slot with SDIO interface
• USB-C for power and data

Repository Contents

This repository contains KiCad design files for each board variant:

hardware/
├── SensythingCAP-v1-r2/
│   ├── pc_sensything_cap_v1_r2.kicad_pcb
│   ├── pc_sensything_cap_v1_r2.kicad_pro
│   └── pc_sensything_cap_v1_r2.kicad_sch
└── SensythingOX-v1-r2/
    ├── afe.kicad_sch
    ├── pc_sensything_ox_v1_r2.kicad_pcb
    ├── pc_sensything_ox_v1_r2.kicad_pro
    └── pc_sensything_ox_v1_r2.kicad_sch

Design Tools

The hardware designs are created using KiCad 9.0+. To view or modify the designs:

1. Download and install KiCad
2. Clone this repository
3. Open the .kicad_pro files in KiCad

License Information

This product is open source! Both, our hardware and software are open source and licensed under the following licenses:

Hardware

All hardware is released under the CERN-OHL-P v2 license.

Copyright CERN 2020.

This source describes Open Hardware and is licensed under the CERN-OHL-P v2.

You may redistribute and modify this documentation and make products using it under the terms of the CERN-OHL-P v2 (https:/cern.ch/cern-ohl). This documentation is distributed WITHOUT ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING OF MERCHANTABILITY, SATISFACTORY QUALITY AND FITNESS FOR A PARTICULAR PURPOSE. Please see the CERN-OHL-P v2 for applicable conditions

Software

All software is released under the MIT License(http://opensource.org/licenses/MIT).

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Documentation

All documentation is released under Creative Commons Share-alike 4.0 International.

You are free to:

• Share — copy and redistribute the material in any medium or format
• Adapt — remix, transform, and build upon the material for any purpose, even commercially. The licensor cannot revoke these freedoms as long as you follow the license terms.

Under the following terms:

• Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
• ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.

Please check LICENSE.md for detailed license descriptions.