Espac
About the Espac PCB
Espac is an open source ESP32 PCB design by metehus, published on GitHub. It is a 2-layer board measuring 95 × 95 mm, with 62 components from 27 distinct parts.
Its main chip is the ESP32-S3-WROOM-1, from the ESP32 family. Other key parts include the AMS1117-3.3, USBLC6-2SC6, DS18B20 and SN74LVC1T45DBV. By type, the board carries 17 capacitors, 13 diodes, 9 resistors, 6 connectors, 5 ICs and 5 switches.
From the project
ESP32 AC controller
Main components on the Espac
Espac bill of materials (BOM)
62 components, 27 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP32-S3-WROOM-1 | ESP32-S3-WROOM-1 | U1 |
| 1 | AMS1117-3.3 | SOT-223-3_TabPin2 | U2 |
| 1 | USBLC6-2SC6 | SOT-23-6 | U3 |
| 1 | DS18B20 | TO-92_Inline | U4 |
| 1 | SN74LVC1T45DBV | SOT-23-6_Handsoldering | U5 |
| 1 | TEMT6000 | TEMT6000 | Q1 |
| 1 | USB_C_Receptacle_USB2.0_14P | USB_C_Receptacle_G-Switch_GT-USB-7010ASV | J1 |
| 2 | A3144 | JST_GH_SM03B-GHS-TB_1x03-1MP_P1.25mm_Horizontal | J2, J3 |
| 1 | Conn_01x08 | TE_0-1734839-8_1x08-1MP_P0.5mm_Horizontal | J4 |
| 1 | Conn_01x10 | PinSocket_1x10_P2.54mm_Vertical | J5 |
| 1 | Conn_01x02 | PinHeader_1x02_P2.54mm_Vertical | J7 |
| 5 | — | 1, 2, 3, 4, 5 | |
| 1 | Power_Led_Jumper | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | RESET | SMD_SIDED_TACT_SWITCH | SW1 |
| 1 | BOOT | SMD_SIDED_TACT_SWITCH | SW2 |
| 1 | PRESS_PUSH | SW_PUSH_6mm_H4.3mm | SW3 |
| 1 | BOOT | SMD_TACT_SWITCH | SW4 |
| 1 | RESET | SMD_TACT_SWITCH | SW5 |
| 1 | LED | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1 |
| 12 | SK6812SIDE-A | SK6812-SIDE-A | D2, D3, D4, D5, D6, D7, D8, D9 +4 |
Show 7 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 10uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C4 |
| 1 | 22uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2 |
| 13 | 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3, C7, C8, C9, C10, C11, C12, C13 +5 |
| 1 | 1uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C5 |
| 3 | 5.1k | R_0603_1608Metric | R1, R2, R4 |
| 5 | 10k | R_0603_1608Metric | R3, R6, R7, R8, R9 |
| 1 | 4.7k | R_0603_1608Metric | R5 |
Espac design files
The KiCad project lives in the metehus/espac repository on GitHub; these links point at the commit this page was built from.
- Layouthardware/espac.kicad_pcb
- Schematichardware/espac.kicad_sch
Espac: common questions
What microcontroller does the Espac use?
The Espac is built around the ESP32-S3-WROOM-1, from the ESP32 family.
How big is the Espac PCB?
The Espac measures 95 × 95 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Espac?
62 components, from 27 distinct parts. The full bill of materials is listed on this page.
Where can I download the Espac design files?
From the metehus/espac repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Espac design in my own project?
The repository has no license, so all rights stay with metehus. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Espac 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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