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Led chaser SMD

tmjnijssen·OSCD_demo_PCB·workshop/led_chaser_SMD/led_chaser_SMD.kicad_pcb

Led chaser SMD PCB layout, top view — open source board by tmjnijssen
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About the Led chaser SMD PCB

Led chaser SMD is an open source PCB design by tmjnijssen, published on GitHub under the CERN-OHL-P-2.0 license. It is a 2-layer board measuring 24 × 35 mm, with 25 components from 11 distinct parts.

Other key parts include the NE555 and 4017. By type, the board carries 11 diodes, 5 capacitors, 4 resistors, 2 ICs, 1 connector and 1 switch.

It belongs with the sensors, iot & wireless and wearables designs in this gallery.

From the project

Open Science Community Delft demonstration PCB

A demonstration / teaching PCB built by the Open Science Community Delft to show what an open hardware project looks like in practice: full sources, an open licence, and everything needed to have the board made and reprogrammed by anyone.

It is a round, ~93 mm ESP32-C3 board shaped like the OSCD logo, with a ring of 12 addressable RGB LEDs, three sensors on a shared I²C bus, capacitive touch pads, and three push buttons. Plug it into USB-C, and the demo firmware lights the ring in response to tilt, touch, ambient light, and button presses.

Main components on the Led chaser SMD

NE5554017

Led chaser SMD bill of materials (BOM)

25 components, 11 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
NE555
U1
1
4017
U2
1
Conn_01x02
J1
1
100K
100k
RV1
1
C600988
ENABLE
SW1
10
LED
D1, D2, D3, D4, D5, D6, D7, D8 +2
1
1N5819
D11
2
10UF
10uF
C1, C5
3
10NF
10nF
C2, C3, C4
2
10K
10k
R1, R4
2
1k
R2, R3

Led chaser SMD design files

The KiCad project lives in the tmjnijssen/OSCD_demo_PCB repository on GitHub; these links point at the commit this page was built from.

Led chaser SMD: common questions

How big is the Led chaser SMD PCB?

The Led chaser SMD measures 24 × 35 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Led chaser SMD?

25 components, from 11 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 Led chaser SMD design files?

From the tmjnijssen/OSCD_demo_PCB 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 Led chaser SMD design in my own project?

Yes, under the terms of its CERN-OHL-P-2.0 license, which tmjnijssen chose for the repository.

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