Power supply v1
About the Power supply v1 PCB
Power supply v1 is an open source ESP32 PCB design by pestvillian, published on GitHub. It is a 2-layer board measuring 188.6 × 145.2 mm, with 90 components from 29 distinct parts.
Its main chip is the ESP32-C6-MINI-1U-H4, from the ESP32 family. Other key parts include the LM2596SX-ADJ/NOPB, AMS1117-3.3 and A4988SETTR-T. By type, the board carries 35 resistors, 33 capacitors, 8 ICs, 8 diodes, 3 inductors and 2 switches.
It belongs with the robotics & motion and power & battery designs in this gallery.
From the project
ECE129 Repo
4/17/25 9:55pm. Added TMC2226 stepper driver to schematic and followed the datasheet. left questions in the schematic. main concerns are vmotor filtering, do we need diagnostic pins like pdn_uart, diag and index, and what vsense resistors do we use? there are other smaller questions too. -Dorjee
4/17/25 11:42pm. made some small updates. vmotor basic filtering is two 100n decouple caps and one 100u bulk cap. they recommend low ESR caps, which provide faster response time. however, they also recommend voltage spikes to be delayed, which would imply high ESR caps would be good too? need to do…
Main components on the Power supply v1
Power supply v1 bill of materials (BOM)
90 components, 29 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | LM2596SX-ADJ/NOPB LM2596S-ADJ Texas Instruments | TO-263-5_TabPin3 | U201, U202, U203 |
| 1 | AMS1117-3.3 AMS1117 Advanced Monolithic Systems | SOT-223-3_TabPin2 | U301 |
| 1 | ESP32-C6-MINI-1U-H4 ESP32-C6-MINI-1 Espressif Systems | ESP32-C6-MINI-1U | U302 |
| 3 | A4988SETTR-T A4988 Allegro MicroSystems, LLC | QFN-28-1EP_5x5mm_P0.5mm_EP3.25x3.25mm_ThermalVias | U401, U402, U403 |
| 1 | MicroXNJ USB_B_Micro SHOU HAN | USB_Micro-B_Molex-105017-0001 | J302 |
| 2 | TS-1187A-B-A-B SW_Push XKB Connection | SW_Push_1P1T_XKB_TS-1187A | SW301, SW302 |
| 3 | SS54 MDD(Microdiode Semiconductor) | D_SMA | D201, D202, D203 |
| 1 | KT-0603R RED Hubei KENTO Elec | LED_0603_1608Metric | D301 |
| 3 | PSM712-LF-T7 ProTek Devices | SOT-23 | D302, D303, D305 |
| 1 | SS14 MDD(Microdiode Semiconductor) | D_SMA | D304 |
| 3 | SMDRI127-470MT 47u SXN(Shun Xiang Nuo Elec) | L_12x12mm_H8mm | L201, L202, L203 |
| 6 | EEEFP1H221AP 220u PANASONIC | C_Elec_10x10.2 | C202, C203, C205, C206, C208, C209 |
| 2 | CL10B102KB8NNNC 1n Samsung Electro-Mechanics | C_0603_1608Metric | C204, C207 |
| 6 | CL21A226MAQNNNE 22u Samsung Electro-Mechanics | C_0603_1608Metric | C301, C302, C304, C402, C404, C416 |
| 6 | CL05B104KO5NNNC 100n Samsung Electro-Mechanics | C_0402_1005Metric | C303, C305, C307, C401, C403, C415 |
| 1 | CL05A105KA5NQNC 1u Samsung Electro-Mechanics | C_0402_1005Metric | C306 |
| 9 | CC0603KRX7R9BB104 100n YAGEO | C_0603_1608Metric | C405, C406, C408, C411, C412, C414, C417, C419 +1 |
| 3 | CL21B224KBFNNNE 220n Samsung Electro-Mechanics | C_0805_2012Metric | C407, C410, C418 |
| 3 | 0603WAF1001T5E 1k UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R201, R203, R205 |
| 1 | 0603WAF3001T5E 3k UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R202 |
Show 9 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | 0603WAF1202T5E 12k UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R204, R206, R417 |
| 1 | 0603WAF5101T5E 5k1 UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R301 |
| 9 | 0603WAF1002T5E 10k UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R302, R305, R401, R405, R407, R411, R415, R419 +1 |
| 2 | 0603WAF0000T5E 0R UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R303, R304 |
| 3 | 0603WAF4701T5E 4k7 UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R402, R404, R418 |
| 1 | 0603WAF1802T5E 18k UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R403 |
| 3 | 0603WAF2402T5E 24k UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R406, R408, R420 |
| 6 | CR1206FR075P05R 75m Ever Ohms Tech | R_1206_3216Metric | R409, R410, R412, R414, R421, R422 |
| 3 | 0603WAF1003T5E 100k UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R413, R416, R424 |
Power supply v1 design files
The KiCad project lives in the pestvillian/ASAT repository on GitHub; these links point at the commit this page was built from.
Power supply v1: common questions
What microcontroller does the Power supply v1 use?
The Power supply v1 is built around the ESP32-C6-MINI-1U-H4, from the ESP32 family.
How big is the Power supply v1 PCB?
The Power supply v1 measures 188.6 × 145.2 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Power supply v1?
90 components, from 29 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 Power supply v1 design files?
From the pestvillian/ASAT 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 Power supply v1 design in my own project?
The repository has no license, so all rights stay with pestvillian. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Power supply v1 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.
More boards in ASAT
ESP32Motor Controller
89 × 74 mm88 parts2LNo license0
STM32Stm32f429vit6 v1 alternative
67.5 × 60.3 mm39 parts4LNo license0
STM32Stm32f429vit6 v1 orthogonal attempt2
80 × 78.3 mm39 parts4LNo license0
STM32Stm32f429vit6 v1 orthogonal attempt3
80 × 64.8 mm39 parts4LNo license0
STM32Stm32f429vit6 v1 test1
125 × 64.8 mm39 parts4LNo license0
STM32Stm32f429vit6 v1
52 × 55 mm39 parts4LNo license0
STM32Two layer drafting
52 × 55 mm39 parts2LNo license0
STM32Stm32f429vit6 v1 orthogonal
80 × 64.8 mm39 parts4LNo license0
STM32Stm32f429vit6 v1 bottomLayer
53.1 × 86.3 mm39 parts4LNo license0
STM32Stm32f429vit6 v1 spi test
43.7 × 57 mm39 parts4LNo license0
Similar boards
ESP32Open Book Abridged Edition
joeycastillo
85 × 115 mm65 parts2LCC-BY-SA-4.08.1k
ESP32Badge
atopile
56.3 × 39 mm239 parts4LMIT4.0k
ESP32Esp32 minimal
36.2 × 26.8 mm20 parts2LMIT4.0k
ESP32Racer
StuckAtPrototype
36 × 50.2 mm70 parts4LApache-2.03.8k
ESP32Controller
29 × 74 mm58 parts4LApache-2.03.8k
ESP32Bitaxe
skot
56.5 × 99.8 mm86 parts4LCERN-OHL-S-2.01.4k