PLC4UNI
About the PLC4UNI PCB
PLC4UNI is an open source ESP32 PCB design by 0sirys, published on GitHub under the MIT license. It is a 4-layer board measuring 102.4 × 83.1 mm, with 207 components from 82 distinct parts.
Its main chip is the ESP32-S3-WROOM-1, from the ESP32 family. Other key parts include the DB127V-5.0-9P-GN-S, ADS1115IDGS, BTS723GW, LK1802 and AT3H4B-CuH-S. By type, the board carries 78 resistors, 47 capacitors, 37 diodes, 23 ICs, 10 test points and 5 transistors.
Main components on the PLC4UNI
PLC4UNI bill of materials (BOM)
207 components, 82 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | DB127V-5.0-9P-GN-S ScrewTerminal1-1x9-P5.0mm DORABO(地博电气) | CONN-TH_9P-P5.00_DB127V-5.0-9P-GN-S | U1, U2, U3, U4 |
| 1 | ADS1115IDGS | TSSOP-10_3x3mm_P0.5mm | U5 |
| 1 | ESP32-S3-WROOM-1 | ESP32-S3-WROOM-1U | U6 |
| 1 | BTS723GW BTS723GWXUMA1 Infineon(英飞凌) | SOIC-14_L8.7-W3.9-P1.27-LS6.0-BL | U7 |
| 1 | LK1802 LANKE(兰科) | SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BR | U8 |
| 6 | AT3H4B-CuH-S AT3H4B-CUH-S AOTE(奥特) | SSOP-4_L2.7-W4.6-P1.27-LS7.0-TL | U9, U10, U11, U12, U13, U14 |
| 1 | MAX31856MUD+ ADI(亚德诺)/MAXIM(美信) | TSSOP-14_L5.0-W4.4-P0.65-LS6.4-BL | U15 |
| 1 | GP8211S-TC50-EW Guestgood(客益) | ESOP-8_L4.9-W3.9-P1.27-LS6.0-BL-EP | U16 |
| 1 | GP8302-TC50-EW Guestgood(客益) | ESOP-8_L4.9-W3.9-P1.27-LS6.0-BL-EP | U17 |
| 1 | BL0942 BL(上海贝岭) | SSOP-10_L4.9-W3.9-P1.00-LS6.0-BL | U18 |
| 1 | B0303S-1WR3 B0303S-1WR3_C7465185 EVISUN(易成) | PWRM-TH_BXXXXS-1WR3 | U19 |
| 1 | ISO7021DR TI(德州仪器) | SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL | U20 |
| 1 | AP63203WU-7 DIODES(美台) | TSOT-26_L2.9-W1.6-P0.95-LS2.8-BL | U21 |
| 1 | APH0630T4R7M APV(爱普微) | IND-SMD_L7.0-W6.6_APH0630 | U22 |
| 1 | TD301M485 TD301M485_C5451847 YLPTEC(易川) | COMM-TH_TD301M485 | U23 |
| 4 | ZXMS6004FFQTA DIODES(美台) | SOT-23F_L2.9-W1.8-P0.95-LS2.4-BR | Q1, Q2, Q3, Q4 |
| 1 | NCE60P04R NCE(无锡新洁能) | SOT-223-3_L6.5-W3.4-P2.30-LS7.0-BR | Q5 |
| 1 | Conn_02x08_Odd_Even | PinHeader_2x08_P2.54mm_Vertical | J1 |
| 1 | ~ | Jumper_2_NO | JP1 |
| 2 | G5V-1 DC3 G5V-1-DC3 OMRON(欧姆龙) | RELAY-TH_G5V-1 | K1, K2 |
Show 62 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | TS-1088-AR02016 XUNPU(讯普) | SW-SMD_L3.9-W3.0-P4.45 | SW1, SW2 |
| 7 | TestPoint | TestPoint_THTPad_D1.5mm_Drill0.7mm | TP1, TP2, TP3, TP4, TP5, TP6, TP7 |
| 3 | 0.5mm | TestPoint-0.5mm | TP8, TP9, TP10 |
| 1 | LED_0603_Red | LED_0603_1608Metric | LED1 |
| 1 | USBLC6-2SC6 ESD5Z3.3T | D_SOD-523 | D1 |
| 5 | ESD5Z3.3T | D_SOD-523 | D2, D3, D4, D5, D6 |
| 12 | Red | LED_0603_1608Metric_Red | D7, D8, D9, D10, D11, D12, D21, D22 +4 |
| 2 | 1N5819HW-7-F DIODES(美台) | SOD-123_L2.7-W1.6-LS3.7-RD | D13, D15 |
| 4 | PESD5Z3.3 | D_SOD-523 | D14, D16, D18, D20 |
| 2 | BAT54S | SOT-23 | D17, D19 |
| 4 | SMBJ12CA | D_SMB_TVS | D27, D35, D36, D37 |
| 1 | SMAJ12A | D_SMA | D28 |
| 1 | SMBJ28A | D_SMB | D29 |
| 1 | DSK120 DSK120_C22466355 R+O(宏嘉诚) | SOD-123FL_L2.7-W1.8-LS3.8-RD | D30 |
| 1 | MBRA340T | D_SMA | D31 |
| 1 | 1N5819 | D_DO-41_SOD81_P7.62mm_Horizontal | D32 |
| 1 | SMF24CA | D_SOD-123F | D33 |
| 1 | SMF3.3 Littelfuse(美国力特) | SOD-123FL_L3.0-W1.9-LS3.7-FD | D34 |
| 2 | C_0603 47pF | C_0603_1608Metric | C1, C2 |
| 1 | C_0603 100nF | C_0603_1608Metric | C3 |
| 4 | 1uF | C_0603_1608Metric | C4, C28, C29, C33 |
| 2 | 100nF | TestPoint_THTPad_D1.5mm_Drill0.7mm | C5, C7 |
| 2 | 47pF | C_0603_1608Metric | C6, C8 |
| 11 | 100nF | C_0603_1608Metric | C9, C10, C23, C24, C25, C26, C27, C30 +3 |
| 14 | C_0603 | C_0603_1608Metric | C11, C12, C13, C14, C15, C16, C17, C18 +6 |
| 2 | 33nF | C_0603_1608Metric | C34, C35 |
| 1 | 68nF | C_0603_1608Metric | C36 |
| 1 | RVT1H101M0810 100uF/50V ROQANG(容强) | CAP-SMD_BD8.0-L8.3-W8.3-FD | C40 |
| 1 | UUD1H221MNL1GS 220uF/50V Nichicon(尼吉康) | CAP-SMD_BD10.0-L10.3-W10.3-LS11.3-FD | C41 |
| 1 | 10uF/50V | C_0805_2012Metric | C42 |
| 1 | 100nF | C_0805_2012Metric | C43 |
| 2 | CL21A226MOQNNNE 22uF/16V SAMSUNG(三星) | C0805 | C44, C45 |
| 2 | UUD1C470MCL1GS 47uF/16V Nichicon(尼吉康) | CAP-SMD_BD6.3-L6.6-W6.6-FD | C46, C47 |
| 1 | R_0603 100k | R_0603_1608Metric | R1 |
| 1 | R_0603 0R | R_0603_1608Metric | R2 |
| 1 | 10K 1k | R_0603_1608Metric | R3 |
| 1 | 10K 2.2k | R_0603_1608Metric | R4 |
| 2 | 10K 4.7k | R_0603_1608Metric | R5, R8 |
| 1 | 300R 0R | R_0603_1608Metric | R6 |
| 1 | 6.8K 0R | R_0603_1608Metric | R7 |
| 4 | 10K R_0603 | R_0603_1608Metric | R9, R10, R11, R12 |
| 2 | 10R R_0603 | R_0603_1608Metric | R13, R14 |
| 2 | 49.9R | R_0805_2012Metric | R15, R19 |
| 2 | 120R | R_0805_2012Metric | R16, R20 |
| 4 | R_0805 | R_0805_2012Metric | R17, R18, R21, R22 |
| 2 | 2.2K | R_0603_1608Metric | R23, R25 |
| 2 | 1.05K | R_0603_1608Metric | R24, R26 |
| 6 | 3.3K | R_0603_1608Metric | R27, R31, R35, R39, R43, R47 |
| 6 | 3.6K | R_0603_1608Metric | R28, R32, R36, R40, R44, R48 |
| 6 | 22K | R_0603_1608Metric | R29, R33, R37, R41, R45, R49 |
| 6 | 220R | R_0603_1608Metric | R30, R34, R38, R42, R46, R50 |
| 2 | 0R | R_0603_1608Metric | R51, R52 |
| 1 | 20K | R_0603_1608Metric | R53 |
| 4 | 150R | R_0603_1608Metric | R54, R55, R56, R57 |
| 5 | R_0603 | R_0603_1608Metric | R58, R71, R72, R73, R74 |
| 1 | 470K | R_0603_1608Metric | R59 |
| 1 | 15R | R_0805_2012Metric | R60 |
| 2 | R51 | R_0805_2012Metric | R61, R62 |
| 5 | 390k | R_0603_1608Metric | R63, R66, R67, R68, R69 |
| 4 | 1k | R_0603_1608Metric | R64, R65, R77, R78 |
| 1 | 510 | R_0603_1608Metric | R70 |
| 2 | 10k | R_0603_1608Metric | R75, R76 |
PLC4UNI design files
The KiCad project lives in the 0sirys/Juan_Pimentel_Electiva_2026_C2 repository on GitHub; these links point at the commit this page was built from.
PLC4UNI: common questions
What microcontroller does the PLC4UNI use?
The PLC4UNI is built around the ESP32-S3-WROOM-1, from the ESP32 family.
How big is the PLC4UNI PCB?
The PLC4UNI measures 102.4 × 83.1 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the PLC4UNI?
207 components, from 82 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 PLC4UNI design files?
From the 0sirys/Juan_Pimentel_Electiva_2026_C2 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 PLC4UNI design in my own project?
Yes, under the terms of its MIT license, which 0sirys chose for the repository.
Can I test firmware for the PLC4UNI 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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