21 open source boards using the NE555P
Real designs built with the NE555P, from public GitHub projects: a quick way to see how others power, decouple and connect it. Each board comes with its KiCad files, full parts list and a render — and you can simulate its firmware on HardLabs.
Touchtone555
DarcyJProjects
200 × 96 mm73 parts2LCERN-OHL-S-2.031
24h Digital Clock
erikvanzijst
152.9 × 74.9 mm82 parts2LNo license21
FellaPC
agkaminski
284.9 × 96.5 mm107 parts2LCC0-1.02
PowerB
lukokemba2
90 × 90 mm23 parts2LNo license2
Intro to
YorkEngSoc
100 × 60 mm20 parts2LNo license2
SpiderBlink
Sudo-Aju
39.6 × 41.4 mm20 parts2LNo license1
555-LED-Chaser
VritoX098
37.9 × 21.5 mm19 parts2LNo license1
Zak180
188 × 128.3 mm128 parts4LCC-BY-NC-4.00
ZAK181
215.3 × 96.8 mm111 parts4LCC-BY-NC-4.00
555-Chaser-LED
code-ga
99.2 × 94.3 mm74 parts4LNo license0
Cat-LED-Chaser
maraulsav
58.6 × 62.4 mm22 parts2LNo license0
LED-Chaser-Blinky-Board-
ArchanaKunwar
56.1 × 45.4 mm19 parts2LNo license0
Led timer
AYUSH-pro-grammer
45.4 × 41 mm18 parts2LNo license0
ESP32Sensors
90 × 90 mm9 parts2LNo license2
555 Astable multivibrator
niyathiarun
27.8 × 34.8 mm8 parts2LNo license2
HV BATT
luftaquila
148.7 × 100 mm59 parts2LNo license1
PICADBDB
demik
100 × 50 mm34 parts2LCERN-OHL-P-2.027
CMOS4017with555timerPanel
orri93
148.8 × 126.2 mm18 parts2LMIT1
Cmos4017with555v2
59.2 × 24.4 mm18 parts2LMIT1
Godzilla
emperor-hadrian
64 × 56 mm9 parts2LNo license0
Magic Wand Timer Simplified
synthesissolutions
66 × 48.3 mm21 parts4LNo license2
The NE555P in open source designs
The gallery holds 21 open source boards using the NE555P from 19 GitHub repositories; a typical one measures about 90 × 62.4 mm and carries around 21 components.
81% are two-layer designs, the rest use four layers or more, and 24% carry an open source license.
The most starred is Touchtone555 by DarcyJProjects.
Parts used alongside the NE555P
What boards using the NE555P are built for
NE555P: common questions
Where can I find a NE555P reference design?
Each of the 21 boards on this page is a real design using the NE555P. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
What parts are used alongside the NE555P?
The 4017, 74HC138, 74HC166, 74HC244 and CH340N appear in the most repositories here.
Which microcontrollers do boards using the NE555P use?
Most are built on ESP32 (1) and PIC (1).
How big is a typical board using the NE555P?
The median is 90 × 62.4 mm, and 81% are two-layer designs.
What is the most popular open source board using the NE555P?
By GitHub stars, Touchtone555 by DarcyJProjects, with 31 stars.
Can I simulate one of these boards using the NE555P before building it?
Yes. HardLabs turns a board's netlist and BOM into a working simulation, so you can boot and test firmware against it with no hardware on your desk.