2 layers120 × 90 mm
2 layers72 × 72 mm
Lab4 project
ttpy2845/KiCAD_Lab4- Size
- 72 × 72 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 34
- Nets
- 156
- Pads
- 257
- Tracks, vias
- 199, 61
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 23 Apr 2026
- Updated
- 23 Apr 2026
Overview
Lab4 project is an open-source printed circuit board by ttpy2845, from the ttpy2845/KiCAD_Lab4 repository on GitHub. It is a 2-layer board of 72 × 72 mm with 34 parts on 156 nets, routed with 199 tracks and 61 vias.
It is built around the AMS1117-3.3, AOD4185 and BZX84C10, with the SMAJ5.0A among its other parts. Its parts include 18 capacitors, 3 resistors, 2 ICs, 2 diodes and 2 connectors. It belongs with the STM32 boards of this library.
Main components
4
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
AOD4185
TO-252(DPAK)-55℃~+175℃ 1 P-Channel 15mΩ@10V 190pF 2.55nF 280pF 3V 40A 40V 55nC@10V 62.5W P-Channel TO-252(DPAK) MOSFETs ROHSAlpha & Omega SemiconductorMOSFETs
BZX84C10
SOT-23Zener Diodeshongjiacheng
SMAJ5.0A
DO-214AC(SMA)-65℃~+150℃ 400W@10/1000us 43.5A 5V 7V 800uA 9.2V TVS Unidirectional DO-214AC(SMA) ESD and Surge Protection (TVS/ESD) ROHSMDDESD And Surge Protection (TVS/ESD)
Parts
34| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 0.1 uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4, C6, C7, C8, C9, C10, C12, C14, C15, C17, C18 |
| 3 | 0.1 uF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C5, C13, C20 |
| 3 | 10k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1, R8, R9 |
| 2 | 22 pF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1, C2 |
| 2 | 470 uF | Capacitor_THT:CP_Radial_D8.0mm_P3.80mm | C3, C16 |
| 1 | 8 MHz | Crystal:Crystal_HC18-U_Vertical | Y1 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | AOD4185 | Package_TO_SOT_SMD:TO-252-2 | Q1 |
| 1 | BOOT | Button_Switch_THT:SW_PUSH_6mm_H5mm | SW3 |
| 1 | BZX84C10 | Diode_SMD:D_SOD-123 | D2 |
| 1 | FerriteBead_Small | Ferrite_THT:LairdTech_28C0236-0JW-10 | FB1 |
| 1 | Fuse | Fuse:Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolder | F1 |
| 1 | NetTie_2 | Jumper:SolderJumper-2_P1.3mm_Bridged2Bar_RoundedPad1.0x1.5mm | NT1 |
| 1 | POWER IN | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J1 |
| 1 | PROG | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J2 |
| 1 | RESET | Button_Switch_THT:SW_PUSH_6mm_H5mm | SW2 |
| 1 | SMAJ5.0A | Diode_SMD:D_SMA | D1 |
| 1 | STM32F407IGTx | Package_QFP:LQFP-176_24x24mm_P0.5mm | U1 |
Similar boards
- 4 layers65 × 56.5 mm
ROV PCIE USB HUB FINAL
samnadol/ROV_PCIe_USB_HUB
up-to-16 port USB hub + PCIe host controller "hat" for Pi 5
171 parts - 2 layers60 × 60 mm
Water level esp8266-esphome solar charing
Hidayatur-rahman/Solar-Water-Level-Monitor-ESP8266-ESPHome-
A solar-powered water tank level monitoring system built around the ESP8266 (ESP-12E), designed in KiCad and running on ESPHome
68 partsMIT - 4 layers86 × 90 mm
Sc02 drive
KVR-CIBER/sc02-solar-hypercar
SC-02 Solar Hypercar: 3D-printbare Le-Mans-racer op zonne-energie met Pi 4 + ESP32-S3, CadQuery-CAD en three.js-simulatie
94 parts - 2 layers100 × 100 mm
AquaPCB
schwabix-1311/aquaPCB
Open-hardware Raspberry Pi base board for aquaPi software. 12 V supply; six 5 A MOSFET outputs for LED lamps and fans (2 with hardware PWM); 4 SSR/relay drivers; protected inputs; 1-Wire; ADS1115 with a pH amplifier on…
147 partsCERN-OHL-S-2.0 - 2 layers
- 4 layers81 × 85 mm
- 4 layers175.2 × 64.7 mm
Questions
How big is the Lab4 project PCB?
It measures 72 × 72 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Lab4 project use?
34 parts, built around the AMS1117-3.3, AOD4185, BZX84C10 and SMAJ5.0A. 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 Lab4 project KiCad files?
From the ttpy2845/KiCAD_Lab4 repository on GitHub, at the commit this page was made from: the board is Lab4_project.kicad_pcb and its schematic Lab4_project.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Lab4 project design in my own project?
Its repository states no licence, so its author keeps all rights: ask ttpy2845 before reusing the design.