Timer

8 boards

KiCad boards from 7 GitHub repositories tagged “timer”, the most starred first; open any of them in PCBKit.

2 layers92.6 × 46.8 mm
Open555
cheyao/Open555
An 555 circuit entirely made out of THT transistors
84 parts16Zlib
2 layers52.2 × 79 mm
Programmable light
dilshan/programmable-light
Simple time based programmable light controller
55 parts5MIT
4 layers100 × 100 mm
KOTH V2
Salted-Peanuts/KOTH-Timer
DIY Arduino Nano ESP32 King of the Hill timer for Nerf, foam flinging, skirmish games, and objective-based events. Includes build guide, firmware, BOM, schematic, and phone referee UI.
49 parts4MIT
2 layers100 × 74.5 mm
SwitchingBoard
HMGrunthos/InrushTimer
Peak detecting transformer inrush current limiter/timer (TRIAC/contactor driver)
53 parts1
2 layers91 × 89 mm
Timer LED TM1637 Arduino
StoicaT/Timer-with-TM1637-and-Arduino
Countdown timer with LED display drive by TM1637 and Arduino Nano.
19 parts1GPL-3.0
2 layers53 × 56 mm
7-segment display
contispaulcristian/7-segment-display
This project features a custom ATmega328P microcontroller board programmed in C. It drives a 4-digit 7-segment display to implement a simple counter application.
18 parts
2 layers43.2 × 40.6 mm
Full circuit
joakimsk/vibration-trigger
Vibration trigger circuit, to turn on a device for 30 seconds, resettable so that it remains on if vibration continues.
23 partsUnlicense
4 layers75.9 × 93.5 mm
Nerf timer
Salted-Peanuts/KOTH-Timer
DIY Arduino Nano ESP32 King of the Hill timer for Nerf, foam flinging, skirmish games, and objective-based events. Includes build guide, firmware, BOM, schematic, and phone referee UI.
35 parts4MIT