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2 layers18 × 21.5 mmTproject-1, the printed circuit board in 3D

Human Touch Sensor PCB Design using a 555 Timer IC | Circuit schematic, PCB layout, and 3D visualization designed using KiCad EDA.

Size
18 × 21.5 mm
Copper layers
2
Thickness
1.6 mm
Parts
8
Nets
8
Pads
22
Tracks, vias
33, 2
Pours
1
Routed
Yes
KiCad
KiCad 10.0 (file 20260206)
Created
12 Oct 2026
Updated
12 Oct 2026

Overview

Tproject-1 is an open-source printed circuit board by gurusaeth12, from the gurusaeth12/555-timer-touch-sensor repository on GitHub. It is a 2-layer board of 18 × 21.5 mm with 8 parts on 8 nets, routed with 33 tracks and 2 vias.

It is built around the NE555P.

Main components

1

Parts

8
QtyValueFootprintReferences
1100uFCapacitor_THT:C_Disc_D6.0mm_W2.5mm_P5.00mm100uF
110KResistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical10K
11KResistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P2.54mm_Vertical1K
11nFCapacitor_THT:CP_Radial_D6.3mm_P2.50mm1nF
1BatteryConnector_PinSocket_1.00mm:PinSocket_1x02_P1.00mm_Vertical_SMD_Pin1Left+ Pow -
1BuzzerConnector_PinSocket_1.00mm:PinSocket_1x02_P1.00mm_Vertical_SMD_Pin1LeftBuz
1NE555PPackage_DIP:DIP-8_W7.62mm555
1Touch PadConnector_PinSocket_1.00mm:PinSocket_1x02_P1.00mm_Vertical_SMD_Pin1LeftTouch

Questions

How big is the Tproject-1 PCB?

It measures 18 × 21.5 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Tproject-1 use?

8 parts, built around the NE555P. 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 Tproject-1 KiCad files?

From the gurusaeth12/555-timer-touch-sensor repository on GitHub, at the commit this page was made from: the board is tproject-1.kicad_pcb and its schematic tproject-1.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Tproject-1 design in my own project?

Its repository states no licence, so its author keeps all rights: ask gurusaeth12 before reusing the design.

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