HardLabs

TinyWatch

Peer202·TinyWatch·TinyWatch/pre-display-removal/TinyWatch.kicad_pcb

TinyWatch PCB layout, top view — open source AVR/Arduino board by Peer202

About the TinyWatch PCB

TinyWatch is an open source AVR/Arduino PCB design by Peer202, published on GitHub. It is a 2-layer board measuring 50.5 × 47.5 mm, with 14 components from 13 distinct parts.

Its main chip is the ATTINY416-S, from the AVR/Arduino family. Other key parts include the MPU-6050. By type, the board carries 4 connectors, 4 capacitors, 2 ICs, 2 resistors, 1 battery holder and 1 diode.

It belongs with the wearables designs in this gallery.

From the project

Minimalist Watch using a Attiny416 MCU

Main components on the TinyWatch

ATTINY416-SMPU-6050

TinyWatch bill of materials (BOM)

14 components, 13 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATTINY416-S
ATtiny416-S
U1
1
MPU-6050
U2
1
UPDI
J1
1
Display
J2
1
BT_1
J3
1
BT_2
J4
1
CR2032
BT1
1
STAT_LED
D1
1
2.2nf
C1
1
CONN_01X02
0.1pf
C2
1
0.1pf
C3
1
10nf
C4
2
1.8k
R1, R2

TinyWatch design files

The KiCad project lives in the Peer202/TinyWatch repository on GitHub; these links point at the commit this page was built from.

TinyWatch: common questions

What microcontroller does the TinyWatch use?

The TinyWatch is built around the ATTINY416-S, from the AVR/Arduino family.

How big is the TinyWatch PCB?

The TinyWatch measures 50.5 × 47.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the TinyWatch?

14 components, from 13 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 TinyWatch design files?

From the Peer202/TinyWatch 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 TinyWatch design in my own project?

The repository has no license, so all rights stay with Peer202. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the TinyWatch 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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