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

practical examples, schematics, kicad project.
TwoFourDigitSevenSegmentDisplays is an open-source printed circuit board by MarginallyClever, from the MarginallyClever/fourDigitSevenSegmentDisplay repository on GitHub. It is a 2-layer board of 68.6 × 53.3 mm with 13 parts on 52 nets, routed with 244 tracks and 1 via.
It is built around the 74HC595. Its parts include 8 connectors and 2 ICs.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | CONN_1 | Socket_Arduino_Uno:Arduino_1pin | P5, P6, P7, P8 |
| 2 | 74HC595 | Housings_DIP:DIP-16_W7.62mm | U1, U2 |
| 2 | CA56-12 | Displays_7-Segment:Cx56-12 | AFF1, AFF2 |
| 1 | Analog | Socket_Arduino_Uno:Socket_Strip_Arduino_1x06 | P2 |
| 1 | Digital | Socket_Arduino_Uno:Socket_Strip_Arduino_1x08 | P4 |
| 1 | Digital | Socket_Arduino_Uno:Socket_Strip_Arduino_1x10 | P3 |
| 1 | POT | Potentiometers:Potentiometer_Piher_T16H_Single_Vertical | RV1 |
| 1 | Power | Socket_Arduino_Uno:Socket_Strip_Arduino_1x08 | P1 |

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

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



It measures 68.6 × 53.3 mm and has 2 copper layers, 1.6 mm thick.
13 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 MarginallyClever/fourDigitSevenSegmentDisplay repository on GitHub, at the commit this page was made from: the board is twoFourDigitSevenSegmentDisplays/twoFourDigitSevenSegmentDisplays.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask MarginallyClever before reusing the design.