4 layers158 × 95 mm
FHNW Pro4E FS19T8-3DPrinterBoard STM32
mnemocron/FHNW-Pro4E-FS19T8-3DPrinterBoard-STM32
Marlin 2.0 compatible 3D printer board based on STM32F103 (KiCad)
264 parts17GPL-3.0
2 layers24 × 27.9 mm
OledFEC
medo64/OledFECFramework computer expansion card that allows a USB CDC serial connection to SSD1306 OLED display modules.
- Size
- 24 × 27.9 mm
- Copper layers
- 2
- Thickness
- 0.8 mm
- Parts
- 15
- Nets
- 14
- Pads
- 73
- Tracks, vias
- 155, 21
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 22 Aug 2024
- Updated
- 28 Aug 2024
Overview
OledFEC is an open-source printed circuit board by medo64, from the medo64/OledFEC repository on GitHub, published under the MIT licence. It is a 2-layer board of 24 × 27.9 mm with 15 parts on 14 nets, routed with 155 tracks and 21 vias.
It is built around the B4B-XH-A. Its parts include 4 resistors, 3 capacitors, 2 ICs, 2 connectors and 1 inductor. It belongs with the lEDs and displays and interfaces and adapters boards of this library.
Main components
1README
README.mdOLED Framework Expansion Card
Framework computer expansion card that allows a USB CDC serial connection to SSD1306 OLED display modules.
Pinout
To connect to this board, one has to use a 4-pin JST XH connector. The following table represents the pinout, pin 1 being on the left as looking into the expansion card.
| # | Ref | Description |
|---|---|---|
| 1 | GND | Ground connection |
| 2 | 5V | OLED power |
| 2 | SCL | I²C clock |
| 3 | SDA | I²C data |
As power consumption is low, wires can be almost any AWG. I would recommend using 24 AWG wire 0.25 mm² as they allow for greater compatibility with other connectors.
LEDs
LED will blink on UART communication with computer (both sending toward and receiving data from computer).
Protocol
This driver will present itself to the system as CDC USB device. Communication protocol is text-based and available here.
You can check my blog and other projects at www.medo64.com.
Parts
15| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 5K1 | Medo64:R (0805) | R2, R3, R4 |
| 2 | 1u | Medo64:C (0805) | C2, C3 |
| 1 | 100n | Medo64:C (0805) | C1 |
| 1 | 105444-0001 | Medo64:J USB C 3.2 Edge (24w) | J1 |
| 1 | 16F1454 | Medo64:U Micro [PIC16F1454] (TSSOP-14) | U1 |
| 1 | 1K | Medo64:R (0805) | R1 |
| 1 | 40R | Medo64:L (0805) | L1 |
| 1 | ACT | Medo64:DS (0805) | DS1 |
| 1 | B4B-XH-A | Medo64:J JST XH Edge [OLED] (4w) | J2 |
| 1 | Jumper | Medo64:JP Dual (1205) | JP1 |
| 1 | MIC2005A-1 | Medo64:U LoadSwitch 100mA [MIC2091-1] (SOT23-5) | U2 |
| 1 | Microchip PIC | Medo64:ICSP PIC Pogo (5w) | ICSP |
Questions
How big is the OledFEC PCB?
It measures 24 × 27.9 mm and has 2 copper layers, 0.8 mm thick.
What parts does the OledFEC use?
15 parts, built around the B4B-XH-A. 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 OledFEC KiCad files?
From the medo64/OledFEC repository on GitHub, at the commit this page was made from: the board is src/OledFEC.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the OledFEC 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).
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