HardLabs

Watch wrong

sulkith·BCDWristWatch·Schematics/Schematics_328P/Watch_wrong.kicad_pcb

Watch wrong PCB layout, top view — open source AVR/Arduino board by sulkith

About the Watch wrong PCB

Watch wrong is an open source AVR/Arduino PCB design by sulkith, published on GitHub under the MIT license. It is a 2-layer board measuring 34.7 × 34.7 mm, with 35 components from 8 distinct parts.

Its main chip is the ATMEGA328-MU, from the AVR/Arduino family. By type, the board carries 16 diodes, 6 connectors, 4 capacitors, 4 resistors, 2 switches and 1 IC.

It belongs with the wearables designs in this gallery.

From the project

WristWatch

Watch wrong, from the project README
From the project README

Main components on the Watch wrong

ATMEGA328-MU

Watch wrong bill of materials (BOM)

35 components, 8 distinct parts.

QtyPartRefs
1
ATMEGA328-MU
U1
1
Crystal
Y1
6
Conn_01x01
J1, J2, J3, J4, J5, J6
1
Battery_Cell
BT1
2
SW_Push
SW1, SW2
16
LED
D1, D2, D3, D4, D5, D6, D7, D8 +8
4
C
C1, C2, C3, C4
4
R
R1, R2, R3, R4

Watch wrong design files

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

Watch wrong: common questions

What microcontroller does the Watch wrong use?

The Watch wrong is built around the ATMEGA328-MU, from the AVR/Arduino family.

How big is the Watch wrong PCB?

The Watch wrong measures 34.7 × 34.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Watch wrong?

35 components, from 8 distinct parts. The full bill of materials is listed on this page.

Where can I download the Watch wrong design files?

From the sulkith/BCDWristWatch repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Watch wrong design in my own project?

Yes, under the terms of its MIT license, which sulkith chose for the repository.

Can I test firmware for the Watch wrong 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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