555-LED-Chaser
About the 555-LED-Chaser PCB
555-LED-Chaser is an open source PCB design by VritoX098, published on GitHub. It is a 2-layer board measuring 37.9 × 21.5 mm, with 19 components from 10 distinct parts.
Other key parts include the NE555P and 4017. By type, the board carries 10 diodes, 2 ICs, 2 connectors, 2 capacitors and 2 resistors.
From the project
A 10-LED chaser board built with a 555 timer and CD4017 counter. My first PCB design, made through Hack Club's Forge program.
A 10-LED chaser board built with a 555 timer and CD4017 counter. My first PCB design, made through Hack Club's Forge program.
10 LEDs light up in sequence, one after another, creating a chasing effect. There's a potentiometer (RV1) that lets you adjust the speed of the chase, turn it one way and it goes fast, the other way and it slows down.
1. Power it with 5V via the J1 header (2-pin socket) 2. The LEDs (D1-D10) will start chasing in sequence 3. Twist RV1 to change the blink speed
Main components on the 555-LED-Chaser
555-LED-Chaser bill of materials (BOM)
19 components, 10 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | NE555P | DIP-8_W7.62mm | U1 |
| 1 | 4017 | N16 | U2 |
| 1 | CONN_01X02_SOCKET Conn_01x02_Socket | PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | CONN_01X01_SOCKET Conn_01x01_Socket | PinHeader_1x01_P2.54mm_Vertical | J2 |
| 1 | 50K 50k | Potentiometer_Vishay_T93YA_Vertical | RV1 |
| 10 | LED | LED_D3.0mm | D1, D2, D3, D4, D5, D6, D7, D8 +2 |
| 1 | 1 uF | CP_Radial_D5.0mm_P2.00mm | C1 |
| 1 | 0.01 uF | C_Disc_D7.5mm_W2.5mm_P5.00mm | C2 |
| 1 | 1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 1 | 470 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2 |
555-LED-Chaser design files
The KiCad project lives in the VritoX098/555-LED-Chaser repository on GitHub; these links point at the commit this page was built from.
- Layout PCB/LED-chaser.kicad_pcb
- Schematic PCB/LED-chaser.kicad_sch
- BOMBOM/BOM.csv
555-LED-Chaser: common questions
How big is the 555-LED-Chaser PCB?
The 555-LED-Chaser measures 37.9 × 21.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the 555-LED-Chaser?
19 components, from 10 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the 555-LED-Chaser design files?
From the VritoX098/555-LED-Chaser repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the 555-LED-Chaser design in my own project?
The repository has no license, so all rights stay with VritoX098. Use it as a reference, and ask the author before reusing the design.