2 layers10 × 40 mm
Sensor bmi v2
Kleavox/DeltaT32
Hardware design based on ESP32-C3 Mini-1, aiming for wearable and general-purpose use, with modular sensor separation.
31 partsMIT
2 layers40 × 40 mm
Esp unit c3-v3
Kleavox/DeltaT32Hardware design based on ESP32-C3 Mini-1, aiming for wearable and general-purpose use, with modular sensor separation.
- Size
- 40 × 40 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 105
- Nets
- 53
- Pads
- 219
- Tracks, vias
- 347, 154
- Pours
- 8
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 26 Jan 2025
- Updated
- 10 May 2025
Overview
Esp unit c3-v3 is an open-source printed circuit board by Kleavox, from the Kleavox/DeltaT32 repository on GitHub, published under the MIT licence. It is a 2-layer board of 40 × 40 mm with 105 parts on 53 nets, routed with 347 tracks and 154 vias.
It is built around the ESP32-C3-MINI-1, SY8088A and MCP73831T-2ACI/OT-HXY, with the LESD5D5.0CT1G, B5819W and DMG3415U among its other parts. Its parts include 22 resistors, 12 capacitors, 10 diodes, 4 ICs and 3 connectors. It belongs with the ESP32 and RISC-V boards of this library.
Main components
8ESP32-C3-MINI-1
--40℃~+81℃ -89dBm 2.4GHz 350mA 3V~3.6V 82mA ESP32-C3 Chip On-board PCB Antenna UART - WiFi Modules ROHSRF CrazyWiFi Modules
SY8088A
SOT-23-5SOT-23-5 DC-DC Converters ROHSTECH PUBLICDC-DC ConvertersMCP73831T-2ACI/OT-HXY
SOT-23-5LBattery ManagementHXY MOSFET
LESD5D5.0CT1G
SOD-523-55℃~+150℃ 100W 12pF 16V 1uA 5V 7A 7V Bidirectional ESD IEC 61000-4-2 SOD-523 ESD and Surge Protection (TVS/ESD) ROHSGOODWORKUncategorised
B5819W
SOD-123-55℃~+125℃ 1.5A 1mA@40V 25A 40V 600mV@1A Standalone SOD-123 Schottky Diodes ROHSMDDSchottky Diodes
DMG3415U
SOT-23MOSFETsTECH PUBLIC
LESD8D3.3CAT5G
SOD-882100nA 10V 16pF 3.3V 6.5V 60W 6A Bidirectional ESD IEC 61000-4-2 SOD-882 ESD and Surge Protection (TVS/ESD) ROHSLeshan Radio (LRC)ESD And Surge Protection (TVS/ESD)
WS2812B
5mm X 5mm Surface Mount RGB LED with Intelligent ControlWorldsemiUncategorised
README
README.mdDeltaT32 – ESP32-C3 Wearable for Capstone
DeltaT32 is a modular hardware design project based on the ESP32-C3 Mini-1, intended primarily for wearable systems, but versatile enough for general-purpose embedded applications. Created using KiCad 8, this project includes a main ESP unit and two detachable sensor boards (BMI160/270 and MPU9250), making it ideal for both academic and practical applications.
This design has been created specifically to fulfill the requirements of a Capstone Project, integrating modern hardware design practices with real-world applications. Although firmware development is still pending, the hardware is designed to be compatible with the esp-rs (ESP32 Rust) ecosystem.
Project Structure
DeltaT32/
├── Schematic/ # PDF-format schematics
├── Hardwares/
│ ├── esp-unit-c3-v3/ # KiCad project for the main ESP32-C3 board
│ ├── sensor-bmi-v2/ # KiCad project for the BMI160/270 sensor board
│ └── sensor-mpu-v2/ # KiCad project for the MPU9250 sensor board
├── 3DModels/ # 3D models of components (if available)
├── Archives/ # Archived ZIP files of older versions
├── Materials/ # Bill of Materials (BOM) for each board
└── README.md # Project documentationTechnical Specifications
| Component | Description |
|---|---|
| MCU | ESP32-C3 Mini-1 |
| Sensors | BMI160/270, MPU9250 (modular and detachable) |
| Design Style | Modular: separate mainboard and sensor units |
| CAD Tool | KiCad 8 |
| Firmware | Not included (hardware only) |
| Rust Support | Designed with esp-rs compatibility in mind |
| Outputs | Schematics, BOMs, 3D Visuals |
Firmware Compatibility
This hardware is designed to be compatible with the esp-rs (Rust for ESP32) ecosystem, but no actual firmware has been implemented or tested using Rust at this time. Custom firmware development in C, C++, or Rust.
Parts
105| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 10K | Resistor_SMD:R_0402_1005Metric | R2, R4, R5, R7, R8, R12 |
| 4 | 0R | Resistor_SMD:R_0402_1005Metric | R1, R11, R19, R20 |
| 4 | LOGO | LOGO | G***, G***, G***, G*** |
| 3 | LESD5D5.0CT1G | Diode_SMD:D_SOD-523 | D6, D8, D9 |
| 2 | 100K | Resistor_SMD:R_0402_1005Metric | R10, R15 |
| 2 | 10uF 16V | Capacitor_SMD:C_0805_2012Metric | C10, C12 |
| 2 | 1uF 16V | Capacitor_SMD:C_0402_1005Metric | C3, C4 |
| 2 | 4.7uF 16V | Capacitor_SMD:C_0603_1608Metric | C7, C9 |
| 2 | 470R | Resistor_SMD:R_0402_1005Metric | R3, R21 |
| 2 | 5K1 | Resistor_SMD:R_0402_1005Metric | R13, R14 |
| 2 | B5819W | Diode_SMD:D_SOD-123 | D5, D7 |
| 2 | DNP | Capacitor_SMD:C_0402_1005Metric | C5, C6 |
| 2 | G*** | kibuzzard-680CFE08 | kibuzzard-680CFE08, kibuzzard-680CFE08 |
| 2 | G*** | kibuzzard-6816DE97 | kibuzzard-6816DE97, kibuzzard-6816DE97 |
| 2 | G*** | kibuzzard-680CFD7F | kibuzzard-680CFD7F, kibuzzard-680CFD7F |
| 2 | G*** | kibuzzard-6816DE78 | kibuzzard-6816DE78, kibuzzard-6816DE78 |
| 2 | G*** | kibuzzard-680CFDE4 | kibuzzard-680CFDE4, kibuzzard-680CFDE4 |
| 2 | G*** | kibuzzard-6816DE5B | kibuzzard-6816DE5B, kibuzzard-6816DE5B |
| 2 | G*** | kibuzzard-680CFDBB | kibuzzard-680CFDBB, kibuzzard-680CFDBB |
| 2 | G*** | kibuzzard-680CFDCF | kibuzzard-680CFDCF, kibuzzard-680CFDCF |
| 2 | G*** | kibuzzard-680CFCF0 | kibuzzard-680CFCF0, kibuzzard-680CFCF0 |
| 2 | G*** | kibuzzard-6816EC1C | kibuzzard-6816EC1C, kibuzzard-6816EC1C |
| 2 | G*** | kibuzzard-6816DDEA | kibuzzard-6816DDEA, kibuzzard-6816DDEA |
| 2 | G*** | kibuzzard-680CFDA8 | kibuzzard-680CFDA8, kibuzzard-680CFDA8 |
| 2 | G*** | kibuzzard-6816DDFD | kibuzzard-6816DDFD, kibuzzard-6816DDFD |
| 2 | G*** | kibuzzard-680CFD12 | kibuzzard-680CFD12, kibuzzard-680CFD12 |
| 2 | G*** | kibuzzard-680CFDFB | kibuzzard-680CFDFB, kibuzzard-680CFDFB |
| 2 | G*** | kibuzzard-6816DD82 | kibuzzard-6816DD82, kibuzzard-6816DD82 |
| 2 | G*** | kibuzzard-680CFD73 | kibuzzard-680CFD73, kibuzzard-680CFD73 |
| 1 | 100 | Resistor_SMD:R_0402_1005Metric | R22 |
| 1 | 100nF 10V | Capacitor_SMD:C_0402_1005Metric | C2 |
| 1 | 10nF 10V | Capacitor_SMD:C_0402_1005Metric | C1 |
| 1 | 160K | Resistor_SMD:R_0805_2012Metric | R18 |
| 1 | 1K | Resistor_SMD:R_0402_1005Metric | R9 |
| 1 | 1nF 10V | Capacitor_SMD:C_0402_1005Metric | C8 |
| 1 | 22K | Resistor_SMD:R_0402_1005Metric | R16 |
| 1 | 22pF 50V | Capacitor_SMD:C_0603_1608Metric | C11 |
| 1 | 32.768Hz | Crystal:Crystal_SMD_3215-2Pin_3.2x1.5mm | Y1 |
| 1 | 442K | Resistor_SMD:R_0805_2012Metric | R17 |
| 1 | BOOT | Button_Switch_SMD:SW_Push_SPST_NO_Alps_SKRK | SW1 |
| 1 | Conn_01x04 | Connector_PinHeader_1.00mm:PinHeader_1x04_P1.00mm_Vertical | J1 |
| 1 | DMG3415U | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | DNP | LED_SMD:LED_0603_1608Metric | D10 |
| 1 | DNP | Resistor_SMD:R_0402_1005Metric | R6 |
| 1 | Delta Board 2 | DeltaT32:Delta_Board-2 | U2 |
| 1 | ENABLE | TestPoint:TestPoint_Pad_D1.0mm | TP1 |
| 1 | ESP32-C3-MINI-1 | PCM_Espressif:ESP32-C3-MINI-1 | U1 |
| 1 | G*** | kibuzzard-680CDA08 | kibuzzard-680CDA08 |
| 1 | G*** | kibuzzard-680CDBED | kibuzzard-680CDBED |
| 1 | G*** | kibuzzard-680CFF32 | kibuzzard-680CFF32 |
| 1 | G*** | kibuzzard-680CD9CB | kibuzzard-680CD9CB |
| 1 | G*** | kibuzzard-680CDA64 | kibuzzard-680CDA64 |
| 1 | G*** | kibuzzard-680CDFA2 | kibuzzard-680CDFA2 |
| 1 | G*** | kibuzzard-680CDA1E | kibuzzard-680CDA1E |
| 1 | G*** | kibuzzard-680CD9B9 | kibuzzard-680CD9B9 |
| 1 | G*** | kibuzzard-680CDBCC | kibuzzard-680CDBCC |
| 1 | G*** | kibuzzard-68198D94 | kibuzzard-68198D94 |
| 1 | JST PH2.0 | DeltaT32:JST_PH2.0 | J2 |
| 1 | LESD8D3.3CAT5G | Diode_SMD:D_SOD-882 | D2 |
| 1 | MCP73831T-2ACI/OT | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | RED LED | LED_SMD:LED_0603_1608Metric | D4 |
| 1 | RESET | Button_Switch_SMD:SW_Push_SPST_NO_Alps_SKRK | SW2 |
| 1 | SPH4018H2R2MT (2.2uH 2.2A) | Inductor_SMD:L_Bourns-SRN4018 | L1 |
| 1 | SY8088 | Package_TO_SOT_SMD:SOT-23-5 | U4 |
| 1 | USB C 16P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J3 |
| 1 | WHITE LED | LED_SMD:LED_0603_1608Metric | D3 |
| 1 | WS2812B | LED_SMD:LED_WS2812B-2020_PLCC4_2.0x2.0mm | D1 |
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Questions
How big is the Esp unit c3-v3 PCB?
It measures 40 × 40 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Esp unit c3-v3 use?
105 parts, built around the ESP32-C3-MINI-1, SY8088A, MCP73831T-2ACI/OT-HXY and LESD5D5.0CT1G. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Esp unit c3-v3 KiCad files?
From the Kleavox/DeltaT32 repository on GitHub, at the commit this page was made from: the board is Hardwares/esp-unit-c3-v3/esp-unit-c3-v3.kicad_pcb and its schematic Hardwares/esp-unit-c3-v3/esp-unit-c3-v3.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Esp unit c3-v3 design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).