2 layers99.8 × 88.8 mm Access control, the printed circuit board in 3D

Access control

This repository contains the KiCad schematics and PCB designs for the Access Control System.

Size: 99.8 × 88.8 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 78
Nets: 91
Pads: 274
Tracks, vias: 500, 54
Pours: 2
Routed: Yes
KiCad: KiCad 9.0 (file 20241229)
Created: 7 May 2026
Updated: 22 Jul 2026

Overview

Access control is an open-source printed circuit board by Bekir111, from the Bekir111/access_control_hardware repository on GitHub. It is a 2-layer board of 99.8 × 88.8 mm with 78 parts on 91 nets, routed with 500 tracks and 54 vias.

It is built around the STM32F446RET6, MAX3232ESE and BA033CC0T, with the DS3231SN#T&R, RC0805FR-0710KL and FDV305N among its other parts. Its parts include 29 capacitors, 13 resistors, 10 connectors, 7 diodes and 5 ICs. It belongs with the STM32 boards of this library.

Main components

README

README.md

Access Control Hardware

This repository contains the KiCad schematics and PCB designs for the Access Control System.

Parts

Qty	Value	Footprint	References
20	0.1uF	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C1, C2, C3, C4, C5, C10, C11, C12, C16, C20, C21, C22, C23, C24, C25, C28 +4
6	10k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R1, R4, R5, R6, R7, R8
6	D	Diode_SMD:D_SMA-SMB_Universal_Handsoldering	D1, D2, D3, D4, D6, D7
6	TestPoint	TestPoint:TestPoint_Pad_D2.0mm	TP1, TP2, TP3, TP4, TP5, TP6
5	Screw_Terminal_01x02	TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal	J4, J7, J8, J9, J10
4	30	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R10, R11, R12, R13
4	FDV305N	Package_TO_SOT_SMD:SOT-23	Q1, Q2, Q3, Q4
4	Screw_Terminal_01x04	TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-4-5.08_1x04_P5.08mm_Horizontal	J2, J3, J5, J6
2	10pF	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C17, C18
2	1uF	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C14, C15
2	4.7k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R2, R3
2	MAX3232ESE	Package_SO:SOIC-16_3.9x9.9mm_P1.27mm	U3, U4
1	100uF	Capacitor_THT:CP_Radial_D6.3mm_P2.50mm	C29
1	10uF	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C13
1	10uF	Capacitor_THT:CP_Radial_D5.0mm_P2.50mm	C27
1	16MHz	Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm_HandSoldering	Y1
1	1k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R9
1	4.7uF	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C19
1	47uF	Capacitor_THT:CP_Radial_D6.3mm_P2.50mm	C26
1	600R	Inductor_SMD:L_0805_2012Metric_Pad1.05x1.20mm_HandSolder	FB1
1	BA033CC0T	Package_TO_SOT_THT:TO-220-3_Horizontal_TabDown	U5
1	Battery_Cell	Battery:BatteryHolder_Keystone_1060_1x2032	BT1
1	Conn_01x04_Pin	Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical	J1
1	DS3231M	Package_SO:SOIC-16W_7.5x10.3mm_P1.27mm	U2
1	RED_LED	LED_THT:LED_D3.0mm	D5
1	Reset button	Button_Switch_SMD:SW_SPST_PTS645Sx43SMTR92	SW1
1	STM32F446RETx	Package_QFP:LQFP-64_10x10mm_P0.5mm	U1

Questions

How big is the Access control PCB?

It measures 99.8 × 88.8 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Access control use?

78 parts, built around the STM32F446RET6, MAX3232ESE, BA033CC0T and DS3231SN#T&R. 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 Access control KiCad files?

From the Bekir111/access_control_hardware repository on GitHub, at the commit this page was made from: the board is access_control.kicad_pcb and its schematic access_control.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Access control design in my own project?

Its repository states no licence, so its author keeps all rights: ask Bekir111 before reusing the design.

Category and platform

STM32

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/bekir111-access-control-hardware" title="Access control 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/bekir111-access-control-hardware.jpg" alt="Access control" width="1200" height="900">

A picture that opens the board, for a README

[![Access control](https://pcbkit.io/embed/boards/bekir111-access-control-hardware.jpg?size=s)](https://pcbkit.io/boards/bekir111-access-control-hardware)

Source

Repository: Bekir111/access_control_hardware
Board file: access_control.kicad_pcb
Commit: d1db910
Licence: Not stated

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