Use Cases: PCB Design & Assembly , Learning & Planning
PCB Parts - Switches, Buttons, and More
The following is a list of parts used for the project.
AliExpess is a low cost supplier, other options include DigiKey, Amazon, and Mouser.
| PCB Component Designator (qualifier) | Description | Specifications | Comments | Order | Â | Pic |
|---|---|---|---|---|---|---|
| n/a | SD Card Reader Module | Micro SD Card Adapter Reader Module (pins ordering: 3V3, CS, MOSI, CLK, MISO, GND). | Used by LCC Fusion Node Card to copy files to/from ESP32 storage using LCC Fusion Node Card’s serial monitor utilities. | AiExpress | 0.80 |  |
| n/a | MP3 Player | DFRobots DFPlayer Mini (or compatible ) | Use by Sound Card to play MP3 files. | AliExpress | 1.10 |  |
| n/a | SD Card | Micro SD, 64MB or larger | Used by Sound Card to store MP3 files. | AliExpress | 1.60 |  |
| Â | JST XH Plug | XH (2.54mm, prewired) | Use with JST XH socket for quick connect/disconnect. Buy prewired. | AliExpress | 0.12 |  |
| Â | RJ45 Plug | CAT5/6 Passthru | Used for creating network cables | AliExpress | 0.08 |  |
| n/a | Screws | M3, 8mm, Pan Head | Screw cards to standoff, mount module boards | AliExpress | Â |  |
| n/a | Standoff Spacer | M3, male, brass | Used to connect cards together (within Node Bus Hub) | AliExpress | Â |  |
| n/a | CAN Module | MCP2515 SPI, TJA1050 receiver | Used to connect RPI to CAN communications. | AliExpress | Â |  |
| J(n) | Spring Terminal Connector | KF141R (2.54mm, right angle) | Use for wiring from breakout boards to layout connections. Purchase specific # of connectors, or assemble into specific terminal block sizes. | AliExpress | Â |  |
| n/a | Jumper Cap | 2.54mm, long | Used for setting selections (I2C, Vcc, CAN termination) | AliExpress | Â |  |
| n/a | CAN Module | FYSECTC UCAN Board, 15EDG 3-Pin connector | Used to connect CAN from Windows USB to Node | AliExpress | 5.50 |  |
| n/a | OLED Display | 0.96” OLED Display /w I2c | Used by Power-CAN Card to display voltage, current, power levels | AliExpress | 1.50 |  |
| n/a | FSR, Thin Film Pressure Sensor | 0-200g, 2-wire, resistive | Sense car loads | AliExpress | 2.50 |  |
| n/a | LDR Photosensor | GL5528 | Sense room lighting | AliExpress | 0.02 |  |
| n/a | Potentiometer | 3-wire, 0-100k | Control lighting, etc | AliExpress | 0.25 |  |
| n/a | Capacitive Touch Button | HTTM Sensor Module | Fascia buttons, control panels | AliExpress | 1.00 |  |
| n/a | Proximity Sensor (IR) | TCRT5000 3-Pin | Train approach, object detection | AliExpress | 1.00 |  |
| n/a | Hall Effect Sensor | A3144, KY-003 Standard Hall Magnetic Sensor Module | Detect magnets under train cars or turnout motors | AliExpress | 0.25 |  |
| n/a | Magnetic Proximity Switch | GPS-01 Magnetic Proximity Switch, 2-wires | Detect loco’s magnetic more, or car’s with magnets underneath | AliExpress | 0.40 |  |
| n/a | Rotary Encoder | EC11 20 Position, 360 degree encoder | Speed control, option selectors | AliExpress | 0.30 |  |
| n/a | Ultrasonic Sensor | SR-04M Ultrasonic Module | Detect people, Clearance detection, staging zone presence | AliExoress | 2.00 |  |