2 layers100 × 100 mm Schematic main2, the printed circuit board in 3D

Schematic main2

New fuel cell control pcb

Size: 100 × 100 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 227
Nets: 192
Pads: 655
Tracks, vias: 1,461, 264
Pours: 24
Routed: Yes
KiCad: KiCad 9.0 (file 20241229)
Created: 29 Mar 2025
Updated: 28 Mar 2026

Overview

Schematic main2 is an open-source printed circuit board by HydrogreenPollub, from the HydrogreenPollub/pcb-fuel-cell-control repository on GitHub, published under the MIT licence. It is a 2-layer board of 100 × 100 mm with 227 parts on 192 nets, routed with 1,461 tracks and 264 vias.

It is built around the ESP32-S3FN8, AD8544ARUZ-REEL and 2EDN8534FXTMA1, with the PMPB10XNX, MMSZ3V3T1G and TL3305BF100QG among its other parts. Its parts include 79 resistors, 52 capacitors, 11 diodes, 9 connectors and 4 transistors. It belongs with the ESP32 boards of this library.

Main components

README

README.md

View this project on CADLAB.io.

template-pcb

Parts

227

Qty	Value	Footprint	References
23	10k	Resistor_SMD:R_1206_3216Metric	R16, R17, R18, R20, R22, R29, R30, R41, R42, R43, R47, R48, R56, R58, R59, R60 +7
15	100n	Capacitor_SMD:C_1206_3216Metric	C11, C12, C15, C18, C19, C20, C23, C24, C25, C26, C29, C31, C38, C43, C50
10	1k	Resistor_SMD:R_1206_3216Metric	R25, R26, R33, R35, R36, R37, R69, R70, R71, R72
6	15k	Resistor_SMD:R_1206_3216Metric	R15, R34, R53, R54, R55, R79
6	LED	LED_SMD:LED_1206_3216Metric	D5, D5 CAN, D6, D6 MCU, D7, D7 POWER 3.3V
5	4n7	Capacitor_SMD:C_1206_3216Metric	C30, C32, C33, C34, C42
4	100R	Resistor_SMD:R_1206_3216Metric	R27, R28, R64, R65
4	1u	Capacitor_SMD:C_1206_3216Metric	C2, C22, C27, C39
4	PMPB10XNX	library:PMPB15XPAX	Q1, Q2, Q3, Q4
4	Vin test	Connector_PinSocket_2.54mm:PinSocket_1x01_P2.54mm_Vertical	TP1, TP1, TP1, TP1
3	100R 0,5W	Resistor_SMD:R_2512_6332Metric	R44, R45, R46
3	100k	Resistor_SMD:R_1206_3216Metric	R5, R8, R9
3	180R	Resistor_SMD:R_1206_3216Metric	R38, R39, R40
3	200R	Resistor_SMD:R_1206_3216Metric	R19, R21, R74
3	20n	Capacitor_SMD:C_1206_3216Metric	C35, C36, C37
3	22u	Capacitor_SMD:CP_Elec_8x10.5	C8, C44, C46
3	GND	Connector_PinSocket_2.54mm:PinSocket_1x01_P2.54mm_Vertical	TP2, TP2, TP3
3	MMSZ3V3T1G	library:SOD3716X135N	Z1, Z2, Z3
3	PMEG10020	library:PMEG10020ELR	D8, D9, D10
3	P_Valve	Connector_Molex:Molex_Mini-Fit_Jr_5569-02A2_2x01_P4.20mm_Horizontal	J5, J9, J12
3	Pot_12V 2k	lib:TC33X2503E	RV3, RV4, RV5
3	TL3305BF100QG	library:TL3305BF160QG	SW1, SW2, SW3
2	+12V	Connector_PinSocket_2.54mm:PinSocket_1x01_P2.54mm_Vertical	TP4, TP5
2	+3.3V	Connector_PinSocket_2.54mm:PinSocket_1x01_P2.54mm_Vertical	TP9, TP9
2	+5V	Connector_PinSocket_2.54mm:PinSocket_1x01_P2.54mm_Vertical	TP6, TP7
2	0	Capacitor_SMD:C_1206_3216Metric	C45, C47
2	0	Resistor_SMD:R_1206_3216Metric	R2, R3
2	0R	Resistor_SMD:R_1206_3216Metric	R51, R52
2	10u	Capacitor_SMD:CP_Elec_8x10.5	C9, C21
2	12p	Capacitor_SMD:C_1206_3216Metric	C16, C17
2	1p2	Capacitor_SMD:C_1206_3216Metric	C40, C41
2	20p	Capacitor_SMD:C_1206_3216Metric	C48, C49
2	2k	Resistor_SMD:R_1206_3216Metric	R67, R68
2	3k3	Resistor_SMD:R_1206_3216Metric	R24, R50
2	47p	Capacitor_SMD:C_1206_3216Metric	C5, C13
2	5k1	Resistor_SMD:R_1206_3216Metric	R1, R4
2	60	Resistor_SMD:R_1206_3216Metric	R31, R32
2	6k8	Resistor_SMD:R_1206_3216Metric	R23, R49
2	V10K100DUHM3_H	Package_TO_SOT_SMD:SOT-323_SC-70	D2, D11
2	k	Resistor_SMD:R_1206_3216Metric	R57, R62
1	100u	Capacitor_SMD:CP_Elec_8x10.5	C14
1	10n	Capacitor_SMD:C_1206_3216Metric	C28
1	10u	Adafruit QT Py ESP32-S3:_0402NO	C9
1	10u 100V	Capacitor_SMD:CP_Elec_8x10.5	C1
1	12V_Out	Connector_Molex:Molex_Mini-Fit_Jr_5569-02A2_2x01_P4.20mm_Horizontal	J4
1	12k	Resistor_SMD:R_1206_3216Metric	R7
1	143k	Resistor_SMD:R_1206_3216Metric	R10
1	180k	Resistor_SMD:R_1206_3216Metric	R6
1	2450AT18B100E	library:ANTC3216X140N	ANT1
1	2EDN8534FXTMA1	lib:SOIC127P602X173-8N	IC5
1	2n	Inductor_SMD:L_0402_1005Metric	L3
1	2n2 100V	Capacitor_SMD:C_1206_3216Metric	C3
1	2n7	Adafruit QT Py ESP32-S3:_0402NO	C7
1	2n7	Capacitor_SMD:C_1206_3216Metric	C7
1	33n	Capacitor_SMD:C_1206_3216Metric	C10
1	3A	library:FUSC8664X180N	F1
1	3n3	Capacitor_SMD:C_1206_3216Metric	C6
1	453k	Resistor_SMD:R_1206_3216Metric	R12
1	47k	Resistor_SMD:R_1206_3216Metric	R14
1	47u	Capacitor_SMD:CP_Elec_6.3x7.7	C4
1	49k9	Resistor_SMD:R_1206_3216Metric	R13
1	4u7	Adafruit QT Py ESP32-S3:_0402	L2
1	4u7	library:SRN3015TA4R7M	L2
1	5M	Resistor_SMD:R_1206_3216Metric	R73
1	5V	Connector_PinSocket_2.54mm:PinSocket_1x01_P2.54mm_Vertical	TP15
1	5k	Resistor_SMD:R_1206_3216Metric	R11
1	9HT7-32.768KDZF-T	lib:9HT732768KDZFT	Y2
1	AD8544ARUZ-REEL	library:SOP65P640X120-14N	IC2
1	Analog_In	Connector_Molex:Molex_Mini-Fit_Jr_5569-02A2_2x01_P4.20mm_Horizontal	J2
1	CAN	library:39303035	J3
1	Crystal_GND24	library:KC3225K400000C1GE00	Y1
1	ESP32-S3FN8	Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP5.6x5.6mm	U4
1	FC Cooling	Connector_Molex:Molex_Mini-Fit_Jr_5569-10A1_2x05_P4.20mm_Horizontal	J7
1	FC_Module	library:39303035	J13
1	Fuell_Cell	Connector_Molex:Molex_Mini-Fit_Jr_5569-02A2_2x01_P4.20mm_Horizontal	J1
1	G12	Connector_PinSocket_2.54mm:PinSocket_1x01_P2.54mm_Vertical	TP26
1	G14	Connector_PinSocket_2.54mm:PinSocket_1x01_P2.54mm_Vertical	TP25
1	G41	Connector_PinSocket_2.54mm:PinSocket_1x01_P2.54mm_Vertical	TP28
1	G42	Connector_PinSocket_2.54mm:PinSocket_1x01_P2.54mm_Vertical	TP27
1	I/O 1	Connector_PinSocket_2.54mm:PinSocket_1x01_P2.54mm_Vertical	TP10

The 193 most common of 227 parts.

Questions

How big is the Schematic main2 PCB?

It measures 100 × 100 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Schematic main2 use?

227 parts, built around the ESP32-S3FN8, AD8544ARUZ-REEL, 2EDN8534FXTMA1 and PMPB10XNX. 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 Schematic main2 KiCad files?

From the HydrogreenPollub/pcb-fuel-cell-control repository on GitHub, at the commit this page was made from: the board is schematic-main2.kicad_pcb and its schematic FCCU_v2_schematic-main.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Schematic main2 design in my own project?

Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

Category and platform

ESP32

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/hydrogreenpollub-pcb-fuel-cell-control" title="Schematic main2 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/hydrogreenpollub-pcb-fuel-cell-control.jpg" alt="Schematic main2" width="1200" height="900">

A picture that opens the board, for a README

[![Schematic main2](https://pcbkit.io/embed/boards/hydrogreenpollub-pcb-fuel-cell-control.jpg?size=s)](https://pcbkit.io/boards/hydrogreenpollub-pcb-fuel-cell-control)

Source

Repository: HydrogreenPollub/pcb-fuel-cell-control
Board file: schematic-main2.kicad_pcb
Commit: d76e7e4
Licence: MIT

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