HardLabs

Strip dimmer

dennisss·dacha·doc/overhead/strip_dimmer/strip_dimmer.kicad_pcb

Strip dimmer PCB layout, top view — open source AVR/Arduino board by dennisss
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About the Strip dimmer PCB

Strip dimmer is an open source AVR/Arduino PCB design by dennisss, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 41 × 20 mm, with 11 components from 10 distinct parts.

Its main chip is the ATtiny85-20S, from the AVR/Arduino family. Other key parts include the TPS70933DBVR. By type, the board carries 5 connectors, 2 ICs, 2 transistors and 2 capacitors.

From the project

Monorepo for awesome tools/projects/libraries

This is a monorepo/ecosystem of software/hardware solutions built by Dennis. Code is written primarily in Rust. Check out the partial list of what's available below.

To get started using the existing applications in this repo, follow the user guide.

Files in this repository are licensed according to the terms in the LICENSE file though sub-directories may contains separate LICENSE files that overrule this for all files in that sub-directory.

Main components on the Strip dimmer

ATtiny85-20STPS70933DBVR

Strip dimmer bill of materials (BOM)

11 components, 10 distinct parts.

QtyPartRefs
1
ATtiny85-20S
U1
1
TPS70933DBVR
U2
2
IRLB8721PBF
Q1, Q2
1
SERIAL_OUT
J1
1
POWER_IN
J2
1
POWER_OUT
J4
1
LED_STRIP
J5
1
SERIAL_IN
J6
1
2.2uF
C1
1
1uF
C2

Strip dimmer design files

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

Strip dimmer: common questions

What microcontroller does the Strip dimmer use?

The Strip dimmer is built around the ATtiny85-20S, from the AVR/Arduino family.

How big is the Strip dimmer PCB?

The Strip dimmer measures 41 × 20 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Strip dimmer?

11 components, from 10 distinct parts. The full bill of materials is listed on this page.

Where can I download the Strip dimmer design files?

From the dennisss/dacha repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Strip dimmer design in my own project?

Yes, under the terms of its Apache-2.0 license, which dennisss chose for the repository.

Can I test firmware for the Strip dimmer without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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