Hw
About the Hw PCB
Hw is an open source ESP32 PCB design by minddot, published on GitHub under the MIT license. It is a 2-layer board measuring 38.4 × 27.4 mm, with 31 components from 18 distinct parts.
Its main chip is the ESP32-C3-WROOM-02, from the ESP32 family. Other key parts include the AHT10, LIS2DH and HX6306. By type, the board carries 13 resistors, 9 capacitors, 4 ICs, 3 connectors, 1 switch and 1 diode.
From the project
MindDot Hardware
- ESP32-C3-WROOM-02 - AHT10 - LIS2DH12 - HX6306P332MR
Main components on the Hw
Hw bill of materials (BOM)
31 components, 18 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP32-C3-WROOM-02 | ESP32-C3-WROOM-02 | U1 |
| 1 | AHT10 | AHT10 | U2 |
| 1 | LIS2DH | LGA-12_2x2mm_P0.5mm | U3 |
| 1 | HX6306 | SOT-23 | U4 |
| 1 | A1501WR-S-2P | JST_ZE_BM02B-ZESS-TBT_1x02-1MP_P1.50mm_Vertical | J1 |
| 1 | Conn_01x06 | PinSocket_1x06_P2.54mm_Vertical | J2 |
| 1 | Conn_01x05 | PinSocket_1x05_P2.54mm_Vertical | J3 |
| 1 | wake up | SW-SMD_2PIN-L4.05-W3.00-L | SW1 |
| 1 | LED_RED | LED_0805_2012Metric | D1 |
| 3 | 10uF | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | C1, C3, C5 |
| 3 | 0.1uF | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | C2, C8, C9 |
| 1 | 100nF | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | C4 |
| 2 | 1uF | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | C6, C7 |
| 1 | 12k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1 |
| 3 | 10k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2, R3, R4 |
| 7 | 100k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5, R8, R9, R10, R11, R12, R13 |
| 1 | 200k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R6 |
| 1 | 5.1k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R7 |
Hw design files
The KiCad project lives in the minddot/hw repository on GitHub; these links point at the commit this page was built from.
- Layoutesp32c3/esp32c3.kicad_pcb
- Schematicesp32c3/esp32c3.kicad_sch
Hw: common questions
What microcontroller does the Hw use?
The Hw is built around the ESP32-C3-WROOM-02, from the ESP32 family.
How big is the Hw PCB?
The Hw measures 38.4 × 27.4 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Hw?
31 components, from 18 distinct parts. The full bill of materials is listed on this page.
Where can I download the Hw design files?
From the minddot/hw repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Hw design in my own project?
Yes, under the terms of its MIT license, which minddot chose for the repository.
Can I test firmware for the Hw 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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