2 layers66 × 27.8 mm
Torch project 1
buildbymanoj/LED-Electronics-PCB-Projects-using-Kicad
A beginner-friendly KiCad PCB project for a basic LED torch powered by a coin cell and controlled using a tactile switch.
4 parts1
2 layers35.6 × 35.6 mm
IC 555 Dimmer CKT
buildbymanoj/LED-Electronics-PCB-Projects-using-Kicad1A beginner-friendly KiCad PCB project for a basic LED torch powered by a coin cell and controlled using a tactile switch.
- Size
- 35.6 × 35.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 12
- Nets
- 10
- Pads
- 34
- Tracks, vias
- 71, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 10 Jun 2025
- Updated
- 27 Sep 2025
Overview
IC 555 Dimmer CKT is an open-source printed circuit board by buildbymanoj, from the buildbymanoj/LED-Electronics-PCB-Projects-using-Kicad repository on GitHub. It is a 2-layer board of 35.6 × 35.6 mm with 12 parts on 10 nets, routed with 71 tracks and 0 vias.
It is built around the NE555P. Its parts include 3 resistors, 3 diodes, 2 capacitors, 1 IC and 1 transistor.
Main components
1README
Simple-LED-Torch-with-Tactile-Switch-main/README.mdSimple LED Torch PCB
This is a basic PCB project designed using KiCad for a simple LED torch. It is powered by a 3V coin cell (CR2032) and uses a tactile push-button to control an LED through a current-limiting resistor.
🔧 Features
- Compact design for handheld use
- Coin cell (CR2032) powered
- Tactile button for on/off control
- Through-hole components for easy soldering
- Ideal for beginners and educational demos
📐 Schematic Overview
Components Used:
- Battery holder for CR2032 cell
- Tactile switch (Omron B3F series)
- 5mm LED
- 220Ω resistor
🛠️ Tools Used
- KiCad 6+
- PCB and schematic layout files included
🧪 Status
✅ Tested and working. LED turns on when the button is pressed.
Feel free to clone this repo and use it as a learning or demo project for basic PCB workflows!
Parts
12| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 1K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R1, R3 |
| 2 | D | Diode_THT:D_A-405_P7.62mm_Horizontal | D2, D3 |
| 1 | 100uF | Capacitor_THT:C_Radial_D5.0mm_H5.0mm_P2.00mm | C1 |
| 1 | 10uF | Capacitor_THT:C_Radial_D5.0mm_H5.0mm_P2.00mm | C2 |
| 1 | 220 | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R2 |
| 1 | 3.7 V Battery_Cell | Battery:BatteryHolder_Keystone_500 | BT1 |
| 1 | LED | LED_THT:LED_D5.0mm | D1 |
| 1 | NE555P | Package_DIP:DIP-8_W7.62mm | U1 |
| 1 | NPN | Package_TO_SOT_THT:TO-92 | Q1 |
| 1 | R_Potentiometer | Potentiometer_THT:Potentiometer_Alpha_RD901F-40-00D_Single_Vertical_CircularHoles | RV1 |
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Questions
How big is the IC 555 Dimmer CKT PCB?
It measures 35.6 × 35.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the IC 555 Dimmer CKT use?
12 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 IC 555 Dimmer CKT KiCad files?
From the buildbymanoj/LED-Electronics-PCB-Projects-using-Kicad repository on GitHub, at the commit this page was made from: the board is IC-555-Based-LED-Dimmer-main/IC-555-Based-LED-Dimmer-main/IC_555_Dimmer_CKT.kicad_pcb and its schematic IC-555-Based-LED-Dimmer-main/IC-555-Based-LED-Dimmer-main/IC_555_Dimmer_CKT.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the IC 555 Dimmer CKT design in my own project?
Its repository states no licence, so its author keeps all rights: ask buildbymanoj before reusing the design.