Elevator-Controller-PCB

A KiCad PCB that drives a small elevator model using two servo motors, controlled wirelessly over an NRF24L01 radio link.

Overview

The board is built around an Arduino Nano that:

• Receives commands over an NRF24L01 2.4GHz radio module
• Drives two servos (M1, M2) for elevator car/door motion
• Drives a buzzer for audible feedback
• Reports status via three LEDs (Power, Debug, Error)

Bill of Materials

Ref	Part	Description
A1	Arduino Nano v3.x	Main controller
U1	NRF24L01 Breakout	2.4GHz radio transceiver
M1, M2	Servo motors	Elevator actuation (3-pin headers)
BZ1	Buzzer	Audible feedback
D1	LED	Power indicator
D2	LED	Debug indicator
D3	LED	Error indicator
D4	Diode	Protection
Q1	S8050 NPN transistor	Switching
J1	Terminal block (2-pin)	MCU power input
R2–R5	Resistors (330Ω x3, 1kΩ)	LED/transistor biasing
C1, C2	470µF electrolytic	Power supply filtering
C3–C5	100nF ceramic	Decoupling
C6	10µF electrolytic	Filtering

Full BOM: jlcpcb/elevatorController.csv

Repository Layout

elevatorController/   KiCad project (schematic, PCB layout, Gerbers, DRC report)
jlcpcb/                JLCPCB-ready fabrication output (Gerbers, drill files, BOM)
exports/               Rendered board images and PDF schematic/layout export
libraries/             Custom KiCad symbol/footprint/3D-model libraries (NRF24L01 module)

Getting Started

1. Install KiCad (developed with KiCad 7+).
2. Open elevatorController/elevatorController.kicad_pro.
3. Custom parts (e.g. the NRF24L01 breakout) live in libraries/. If symbols/footprints are missing, add libraries/ to your KiCad library table — see libraries/NRF24L01_/how-to-import.htm for instructions.

Fabrication

Ready-to-order Gerbers, drill files, and BOM for JLCPCB are in jlcpcb/ (also bundled as jlcpcb/gerber.zip). The board is 2-layer and passes DRC with 0 violations (see elevatorController/DRC.rpt).

License

Apache License 2.0 — see LICENSE.