Esp atx power
valletw·esp-atx-power·kicad/esp-atx-power.kicad_pcb
About the Esp atx power PCB
Esp atx power is an open source ESP32 PCB design by valletw, published on GitHub under the MIT license. It is a 4-layer board measuring 76.6 × 25.1 mm, with 51 components from 28 distinct parts.
Its main chip is the ESP32-C3-WROOM-02U-N4, from the ESP32 family. Other key parts include the AMS1117-3.3, USBLC6-2P6 and TPS2116DRLR. By type, the board carries 18 resistors, 11 capacitors, 6 diodes, 4 ICs, 4 connectors and 4 relays.
It belongs with the iot & wireless designs in this gallery.
From the project
ESP32 ATX Power Controller
The purpose of this project is to control a computer remotely by connecting directly to the ATX motherboard power IO control. The control will be done with Home Assistant by using ESPHome firmware.
Custom software could be written by using ESP-IDF SDK but it is not the purpose of this project.
Double 2.54mm pin headers are set for each ATX functionalities to manage:

Main components on the Esp atx power
Esp atx power bill of materials (BOM)
51 components, 28 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP32-C3-WROOM-02U-N4 ESP32-C3-WROOM-02U Espressif Systems | ESP32-C3-WROOM-02U | U101 |
| 1 | AMS1117-3.3 Advanced Monolithic Systems | SOT-223-3_TabPin2 | U102 |
| 1 | USBLC6-2P6 STMicroeletronics | SOT-666 | U103 |
| 1 | TPS2116DRLR TPS2116DRL Texas Instruments | SOT-583-8 | U104 |
| 1 | CONN_ARM_JTAG_SWD_10 Conn_ARM_JTAG_SWD_10 hanxia | PinHeader_2x05_P1.27mm_Vertical_SMD | J101 |
| 1 | PZ254-2-09-W-8.5 Conn_02x09_Odd_Even HCTL | PinHeader_2x09_P2.54mm_Horizontal | J102 |
| 1 | 532610471 Conn_01x04 MOLEX | Molex_PicoBlade_53261-0471_1x04-1MP_P1.25mm_Horizontal | J103 |
| 1 | GT-USB-7010ASV G-Switch | USB_C_Receptacle_G-Switch_GT-USB-7010ASV | J105 |
| 4 | G3VM-61D1 Omron Electronics | DIP-4_W8.89mm_SMDSocket_LongPads | K101, K102, K103, K104 |
| 2 | TS-1187A-B-A-B XKB Connectivity | SW_Push_1P1T_XKB_TS-1187A | SW101, SW102 |
| 2 | TPD1E05U06DPYR TPD1E05U06 Texas Instruments | Texas_DPY0002A_0.6x1mm_P0.65mm | D101, D102 |
| 1 | NCD0805R1 Red Foshan NationStar Optoelectronics | LED_0805_2012Metric | D103 |
| 1 | KT-0805G Green Hubei KENTO Elec | LED_0805_2012Metric | D104 |
| 2 | SMF5.0A hongjiacheng | D_SOD-123F | D105, D106 |
| 2 | BLM18PG121SN1D Ferrite Bead Murata Electronics | L_0603_1608Metric | L101, L102 |
| 3 | CL05B104KO5NNNC 100n Samsung Electro-Mechanics | C_0402_1005Metric | C101, C105, C106 |
| 1 | CL05A106MQ5NUNC 10u Samsung Electro-Mechanics | C_0402_1005Metric | C102 |
| 2 | CC0603KRX7R9BB104 100n YAGEO | C_0603_1608Metric | C103, C110 |
| 2 | TAJA106K016RNJ 10u | CP_EIA-3216-18_Kemet-A | C104, C111 |
| 1 | CL05A105KA5NQNC 1u Samsung Electro-Mechanics | C_0402_1005Metric | C107 |
Show 8 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | ~ | C_0402_1005Metric | C108, C109 |
| 4 | 0603WAF3900T5E 390 UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R101, R102, R104, R106 |
| 5 | 0402WGF1002TCE 10k UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R103, R108, R109, R117, R118 |
| 2 | 0402WGF4701TCE 4.7k UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R105, R107 |
| 2 | 0402WGF5101TCE 5.1k UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R110, R111 |
| 2 | 0402WGF220JTCE 22 UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R112, R113 |
| 2 | 0402WGF6800TCE 680 UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R114, R115 |
| 1 | 0402WGF0000TCE 0 UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R116 |
Esp atx power design files
The KiCad project lives in the valletw/esp-atx-power repository on GitHub; these links point at the commit this page was built from.
- Layoutkicad/esp-atx-power.kicad_pcb
- Schematickicad/esp-atx-power.kicad_sch
- BOMbom.csv
Esp atx power: common questions
What microcontroller does the Esp atx power use?
The Esp atx power is built around the ESP32-C3-WROOM-02U-N4, from the ESP32 family.
How big is the Esp atx power PCB?
The Esp atx power measures 76.6 × 25.1 mm, has 4 copper layers and is 1.6062 mm thick.
How many components are on the Esp atx power?
51 components, from 28 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 Esp atx power design files?
From the valletw/esp-atx-power repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Esp atx power design in my own project?
Yes, under the terms of its MIT license, which valletw chose for the repository.
Can I test firmware for the Esp atx power 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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