Core v2-rounded
About the Core v2-rounded PCB
Core v2-rounded is an open source ESP32 PCB design by OpenShock, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 40 × 56 mm, with 36 components from 19 distinct parts.
Its main chip is the ESP32-S3-WROOM-1, from the ESP32 family. Other key parts include the AP2114HA-3.3. By type, the board carries 13 capacitors, 9 resistors, 4 diodes, 3 switches, 2 ICs and 2 connectors.
From the project
KiCAD files for PCBs for transmitters and other hardware for OpenShock.
JLCPCB may contact you about a couple of things:
- WS2812B-Minis may incur an extra component baking fee (~$8-10) - Rotations of WS2812B-Mini and Antenna. Ensure that they match these examples:
Main components on the Core v2-rounded
Core v2-rounded bill of materials (BOM)
36 components, 19 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP32-S3-WROOM-1 | ESP32-S3-WROOM-1 | U3 |
| 1 | AP2114HA-3.3 | SOT-223-3_TabPin2 | U5 |
| 1 | BSS138 | SOT-23 | Q1 |
| 1 | PJ-3200 | AUDIO-TH_PJ-3200 | CN1 |
| 1 | USB_C_RECEPTACLE_USB2.0 USB_C_Receptacle_USB2.0 | HRO-TYPE-C-31-M-12-HandSoldering_ABPads | J2 |
| 1 | C89805 Antenna | Pin_D1.0mm_L10.0mm | AE1 |
| 1 | C883133 Polyfuse | Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolder | F1 |
| 3 | C445493 SW_SPST | SW_PUSH_6mm_customized | SW1, SW2, SW3 |
| 1 | C8598 D_Schottky | D_SOD-123 | D1 |
| 1 | C2286 POWER | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D2 |
| 1 | C72038 STATUS | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D3 |
| 1 | WS2812B-MINI3535 WS2812B-Mini3535 | LED_WS2812B-Mini_3.5x3.5mm_P1.75mm | D4 |
| 6 | 100NF 100nF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C4, C8, C10, C11, C13 |
| 3 | 10UF 10uF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C2, C6, C9 |
| 3 | 22UF 22uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3, C5, C7 |
| 1 | 73PF 73pF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C12 |
| 3 | 10K 10k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2, R3, R5 |
| 5 | 5.1K 5.1k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4, R6, R7, R8, R9 |
| 1 | 100K 100k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R10 |
Core v2-rounded design files
The KiCad project lives in the OpenShock/Hardware repository on GitHub; these links point at the commit this page was built from.
Core v2-rounded: common questions
What microcontroller does the Core v2-rounded use?
The Core v2-rounded is built around the ESP32-S3-WROOM-1, from the ESP32 family.
How big is the Core v2-rounded PCB?
The Core v2-rounded measures 40 × 56 mm, has 2 copper layers and is 0.9912 mm thick.
How many components are on the Core v2-rounded?
36 components, from 19 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 Core v2-rounded design files?
From the OpenShock/Hardware repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Core v2-rounded design in my own project?
Yes, under the terms of its CERN-OHL-S-2.0 license, which OpenShock chose for the repository.
Can I test firmware for the Core v2-rounded 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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