
LEDx16 board
tardate/LittleArduinoProjects
a collection of "Little Electronic & Arduino Projects", most involving electronics or an Arduino in one way or another!

Infinitely chainable 2.5 digit displays by EEAN
NumericDisplays is an open-source printed circuit board by CC-Ian, from the CC-Ian/InfiDig-Hardware repository on GitHub. It is a 2-layer board of 83.1 × 42.7 mm with 38 parts on 40 nets, routed with 156 tracks and 113 vias.
It is built around the 74HC595. Its parts include 16 resistors, 2 ICs and 2 connectors.
An infinitely chainable 2.5 digit display made using LED Filaments and 74HC595 shift registers.

| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | 22 | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16 |
| 16 | TestPoint | TestPoint:TestPoint_THTPad_D1.5mm_Drill0.7mm | TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8, TP9, TP10, TP11, TP12, TP13, TP14, TP15, TP16 |
| 2 | 74HC595 | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U1, U2 |
| 2 | Conn_01x06_Pin | Connector_JST_RightAngle:XH-W-06A | J1, J2 |
The 36 most common of 38 parts.

tardate/LittleArduinoProjects
a collection of "Little Electronic & Arduino Projects", most involving electronics or an Arduino in one way or another!

ChrisChrisLoLo/beyblock20
The magnetic, modular, 20-key macropad that can join together to form an ortholinear board

slu4coder/Minimal-64x4-Home-Computer
My DIY TTL home computer with VGA and PS/2 and 4x the processing power of a Commodore C64 or Apple II.

electroniceel/protoboard
Advanced protoboard layout with 1.27mm pitch for smd parts

TobleMiner/DC-UPS
A small DC UPS, designed to keep small appliances like consumer network equipment running during power outages



It measures 83.1 × 42.7 mm and has 2 copper layers, 1.6 mm thick.
38 parts, built around the 74HC595. 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.
From the CC-Ian/InfiDig-Hardware repository on GitHub, at the commit this page was made from: the board is NumericDisplays.kicad_pcb and its schematic NumericDisplays.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask CC-Ian before reusing the design.