HardLabs

PocketLight

yansha2903-bot·PocketLight·KiCad PocketLight/KiCad PocketLight.kicad_pcb

PocketLight PCB layout, top view — open source AVR/Arduino board by yansha2903-bot

About the PocketLight PCB

PocketLight is an open source AVR/Arduino PCB design by yansha2903-bot, published on GitHub under the MIT license. It is a 2-layer board measuring 50.1 × 35.2 mm, with 9 components from 9 distinct parts.

Its main chip is the ATTINY412-SS, from the AVR/Arduino family. By type, the board carries 3 resistors, 2 switches, 1 IC, 1 battery holder, 1 diode and 1 capacitor.

From the project

A small pocket flashlight built around the ATtiny412.

A small pocket flashlight built around the ATtiny412.

This project started as a way to learn PCB design in KiCad and get more comfortable with embedded electronics. Instead of making something complicated, I wanted to build a simple device that I could actually understand from start to finish.

- ATtiny412 microcontroller - Push button to turn the light on - Automatic brightness adjustment using a photoresistor - Low component count - Compact PCB design

PocketLight, from the project README
From the project README

Main components on the PocketLight

ATTINY412-SS

PocketLight bill of materials (BOM)

9 components, 9 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATTINY412-SS
ATtiny412-SS
U1
1
Battery_Cell
BT1
1
SW_Push
SW1
1
SW_SPST
SW2
1
LED
D1
1
100 nF
C1
1
100 Ω
R1
1
R_Photo
R2
1
10 kΩ
R3

PocketLight design files

The KiCad project lives in the yansha2903-bot/PocketLight repository on GitHub; these links point at the commit this page was built from.

PocketLight: common questions

What microcontroller does the PocketLight use?

The PocketLight is built around the ATTINY412-SS, from the AVR/Arduino family.

How big is the PocketLight PCB?

The PocketLight measures 50.1 × 35.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the PocketLight?

9 components, from 9 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 PocketLight design files?

From the yansha2903-bot/PocketLight 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 PocketLight design in my own project?

Yes, under the terms of its MIT license, which yansha2903-bot chose for the repository.

Can I test firmware for the PocketLight 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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