2 layers50 × 50 mm
LiPo Battery Charger PCB
itsebuka/PCB-Design-Core
This repository contains every single PCB that i have ever designed. The major applications used are Kicad and EasyEDA
22 partsMIT
4 layers
Smart nrp makerspace
itsebuka/PCB-Design-CoreThis repository contains every single PCB that i have ever designed. The major applications used are Kicad and EasyEDA
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 58
- Nets
- 99
- Pads
- 245
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 12 Aug 2026
- Updated
- 24 Aug 2026
Overview
Smart nrp makerspace is an open-source printed circuit board by itsebuka, from the itsebuka/PCB-Design-Core repository on GitHub, published under the MIT licence. It is a 4-layer board with 58 parts on 99 nets.
It is built around the ESP32-S3-WROOM-1-N8, MAX485ED and AMS1117-3.3, with the BC817 among its other parts. Its parts include 23 resistors, 11 capacitors, 6 diodes, 4 ICs and 4 transistors. It belongs with the interfaces and adapters and microcontroller boards boards and the ESP32 boards of this library.
Main components
4
ESP32-S3-WROOM-1-N8
SMD,25.5x18mm-40℃~+85℃ -98.2dBm 2.4GHz 20.5dBm 355mA 3V~3.6V 95mA Bluetooth5.0 ESP32-S3 Chip On-board PCB Antenna UART、SPI、I2C、I2S、USB SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
MAX485ED
SOP-8-40℃~+85℃ 1 1 1mA 32 4.75V~5.25V 5Mbps Half-Duplex Transceiver ±8kV SOP-8 RS-485 / RS-422 ICs ROHSHTCRS-485 / RS-422 ICs
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
BC817
SOT-231 NPN 100nA 150MHz 300mW 40 45V 500mA 5V 700mV NPN SOT-23 Bipolar (BJT) ROHSShikuesBipolar (BJT)
README
README.mdPCB Design Core
A central portfolio repository housing PCB design files, schematic captures, and embedded hardware prototypes. Projects range from custom microcontroller systems to specialized power management boards and discrete logic circuits.
🚀 Projects Overview
1. ESP32-S3 Test Board
- Description: Custom hardware evaluation platform designed around the ESP32-S3 microcontroller for IoT prototyping and wireless development.
- Key Features:
- Clean power regulation network for stable MCU operation.
- Dedicated break-out headers for GPIO, I2C, SPI, and UART peripherals.
- Optimized 2-layer PCB layout with dedicated ground plane for RF/noise stability.
- Directory:
/ESP32 S3 TESTBOARD
2. LiPo Battery Charger PCB
- Description: Dedicated power management module for single-cell Lithium-Polymer (LiPo) battery charging and safety.
- Key Features:
- Embedded charge controller IC with constant-current / constant-voltage (CC/CV) profile.
- Built-in LED status indicators for charge state and fault monitoring.
- Input voltage protection and compact surface-mount footprint.
- Directory:
/LiPo Battery Charger PCB
3. Magnitude Comparator PCB
- Description: Discrete hardware design focusing on digital logic arithmetic and signal processing.
- Key Features:
- Multi-bit digital magnitude comparison logic.
- Clean net labels and hierarchical layout organization.
- Complete manufacturing outputs including Gerber files and drill charts.
- Directory:
/Comparator-Project
🛠️ Tools & Technologies
- EDA Software: KiCad 10.0 (Schematic Capture, PCB Layout, DRC/ERC)
- Design Capabilities: Multi-layer PCB routing, power plane isolation, custom footprint creation, DFM (Design for Manufacture).
- Hardware Domain: Embedded Microcontrollers (ESP32-S3), Power Management Systems, Signal Logic Circuits.
- Version Control: Git & GitHub Desktop.
📂 Repository Layout
PCB-Design-Core/
├── ESP32 S3 TESTBOARD/ # ESP32-S3 hardware design files & schematics
├── LiPo Battery Charger PCB/ # Charger board layouts & manufacturing files
├── Comparator-Project/ # Magnitude comparator schematics & Gerber outputs
└── README.md # Central portfolio documentationParts
58| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 100nF | Capacitor_SMD:C_0402_1005Metric | C1, C3, C6, C7, C8, C10 |
| 4 | 10k | PCM_4ms_Resistor:R_0402 | R8, R10, R12, R23 |
| 4 | 10k | Resistor_SMD:R_0603_1608Metric | R13, R14, R15, R17 |
| 4 | MountingHole_M3 | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 3 | BC817 | PCM_Package_TO_SOT_SMD_AKL:SOT-23 | Q1, Q3, Q4 |
| 3 | LED | LED_THT:LED_D5.0mm | D1, D2, D3 |
| 2 | 0 | PCM_4ms_Resistor:R_0402 | R5, R7 |
| 2 | 10uF | Capacitor_SMD:C_0402_1005Metric | C2, C11 |
| 2 | 1k | PCM_4ms_Resistor:R_0402 | R4, R22 |
| 2 | 20k | Resistor_SMD:R_0603_1608Metric | R16, R21 |
| 2 | 22 | PCM_4ms_Resistor:R_0402 | R19, R20 |
| 2 | D_TVS_Bidirectional | PCM_4ms_Diode:D_DO-214AC_SMA | D6, D7 |
| 2 | SW_Push_Dual | Button_Switch_SMD:SW_Push_1P1T_NO_E-Switch_TL3301NxxxxxG | SW1, SW2 |
| 1 | 10uF | Capacitor_SMD:C_0603_1608Metric | C12 |
| 1 | 120 | Resistor_SMD:R_0603_1608Metric | R18 |
| 1 | 18k | PCM_4ms_Resistor:R_0402 | R3 |
| 1 | 1K | PCM_4ms_Resistor:R_0402 | R6 |
| 1 | 22.1K | PCM_4ms_Resistor:R_0402 | R9 |
| 1 | 22uF | Capacitor_SMD:C_0805_2012Metric | C9 |
| 1 | 2N7002 | PCM_Package_TO_SOT_SMD_AKL:SOT-23 | Q2 |
| 1 | 4.7uF | Capacitor_SMD:C_0402_1005Metric | C5 |
| 1 | 47.5k | PCM_4ms_Resistor:R_0402 | R11 |
| 1 | 5.1K | PCM_4ms_Resistor:R_0402 | R1 |
| 1 | 560 | PCM_4ms_Resistor:R_0402 | R2 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U4 |
| 1 | CP2102N-Axx-xQFN28 | Package_DFN_QFN:QFN-28-1EP_5x5mm_P0.5mm_EP3.35x3.35mm | U3 |
| 1 | Conn_01x02_Pin | Connector_PinHeader_1.27mm:PinHeader_1x02_P1.27mm_Vertical | J3 |
| 1 | Conn_01x03_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J4 |
| 1 | DE9_Socket | Connector_Dsub:DSUB-9_Pins_Horizontal_P2.77x2.84mm_EdgePinOffset4.94mm_Housed_MountingHolesOffset4.94mm | J1 |
| 1 | D_TVS_Bidirectional_Generic | PCM_4ms_Diode:D_DO-214AC_SMA | D4 |
| 1 | ESP32-S3-WROOM-1 | RF_Module:ESP32-S3-WROOM-1 | U1 |
| 1 | MAX485E | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | USB_B_Micro | Connector_USB:USB_Micro-B_Molex-105017-0001 | J2 |
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Questions
What parts does the Smart nrp makerspace use?
58 parts, built around the ESP32-S3-WROOM-1-N8, MAX485ED, AMS1117-3.3 and BC817. 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 Smart nrp makerspace KiCad files?
From the itsebuka/PCB-Design-Core repository on GitHub, at the commit this page was made from: the board is Smart NRP Makerspace/smart_nrp_makerspace/smart_nrp_makerspace.kicad_pcb and its schematic LM555 TESTBOARD/LM555 Testboard/LM555 Testboard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Smart nrp makerspace 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).