

ESP32QuadOCDect
ESP32 based LCC Boards
- Size
- 108 × 137.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 45
- Nets
- 36
- Pads
- 228
- Tracks, vias
- 234, 27
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 3
- Created
- 28 Dec 2022
- Updated
- 22 Oct 2026
Overview
ESP32QuadOCDect is an open-source printed circuit board by RobertPHeller, from the RobertPHeller/ESP32-LCC repository on GitHub. It is a 2-layer board of 108 × 137.2 mm with 45 parts on 36 nets, routed with 234 tracks and 27 vias.
It is built around the LM2574N-5.0, MCT6H and RJ45, with the SB240-E3 and SB160-E3/54 among its other parts. Its parts include 10 resistors, 9 ICs, 7 diodes, 5 capacitors and 2 connectors. It belongs with the ESP32 boards of this library.
Main components
5LM2574N-5.0
PDIP-8-40℃~+125℃@(TJ) 1 4V~40V 500mA 52kHz 5V 5mA Buck Buck Built-in Fixed No DIP-8 DC-DC Converters ROHSTexas InstrumentsDC-DC ConvertersMCT6H
DIP-8-55℃~+100℃ 1.25V 100% 2 250mW 300mV@10mA,10mA 3us 4.7us 50% 50mA 5kV 60mA 6V 70V DC Phototransistor DIP-8 Transistor, Photovoltaic Output Optoisolators ROHSVishay IntertechnologyTransistor, Photovoltaic Output OptoisolatorsRJ45
TH-12PTH-12P SMT ROHSJLCPCB AssemblyUncategorisedSB240-E3
DO-204AC(DO-15)Schottky DiodesVishay IntertechnologySB160-E3/54
DO-41-65℃~+150℃ 1 Independent 1A 500uA@60V 50A 60V 650mV@1A DO-41 Schottky Diodes ROHSVishay IntertechnologySchottky Diodes
README
ESP32-16LedDriver/README.mdESP32-16LedDriver
16 on/off LED Driver board using a MCP23017.
Parts
45| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 10 Ohms | R1 | R3, R5, R7, R9 |
| 4 | 10K Ohms | R1 | R4, R6, R8, R10 |
| 4 | BRIDGEX | KBL | D4, D5, D6, D7 |
| 4 | In Track1 Out | bornier2 | T3, T4, T5, T6 |
| 4 | MCT6H | DIP-8__300 | IC1, IC2, IC3, IC4 |
| 4 | MountingHole_2-5mm_RevA_Date21Jun2010 | MountingHole_2-5mm_RevA_Date21Jun2010 | MH, MH, MH, MH |
| 2 | 60 Ohms | R1 | R1, R2 |
| 2 | RJ45 | RJ45_8N-S | J1, J2 |
| 2 | SB240E | DO-35 | D1, D2 |
| 1 | + 15 in - | ScrewTerm2.54-2 | T1 |
| 1 | + 15 out - | ScrewTerm2.54-2 | T2 |
| 1 | .1 uf | C1 | C1 |
| 1 | 15 uf 15V | C1.5V8V | C2 |
| 1 | 22 uf 100V | C1-3V8 | C5 |
| 1 | 220 uf 25V | C1-3V8 | C4 |
| 1 | 330 uh | PE-LowProfile | L1 |
| 1 | 47 nf | C1 | C3 |
| 1 | ESP32_DEVKIT_C or TTGO-T1 | ESP32-Devkit-C | U0 |
| 1 | LM2574N-5.0 | DIP-8__300 | U3 |
| 1 | SB160-E3/54 | DO-41 | D3 |
| 1 | SN65HVD233-HT | DIP-8__300 | U2 |
| 1 | TCAN332DR | SOIC-8_N | U1 |
| 1 | TTGO-T1 | TIGO-T1 | U0A |
| 1 | Termination | PIN_ARRAY_2X2 | JP1 |
Questions
How big is the ESP32QuadOCDect PCB?
It measures 108 × 137.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ESP32QuadOCDect use?
45 parts, built around the LM2574N-5.0, MCT6H, RJ45 and SB240-E3. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the ESP32QuadOCDect KiCad files?
From the RobertPHeller/ESP32-LCC repository on GitHub, at the commit this page was made from: the board is ESP32QuadOCDect/ESP32QuadOCDect.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the ESP32QuadOCDect design in my own project?
Its repository states no licence, so its author keeps all rights: ask RobertPHeller before reusing the design.
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