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Kicad Smart Watch old

AFLProjects·DIY-Smart-Watch·Hardware/Kicad Project/Kicad_Smart_Watch/Kicad_Smart_Watch_old.kicad_pcb

Kicad Smart Watch old PCB layout, top view — open source AVR/Arduino board by AFLProjects
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About the Kicad Smart Watch old PCB

Kicad Smart Watch old is an open source AVR/Arduino PCB design by AFLProjects, published on GitHub. It is a 4-layer board measuring 31.1 × 26 mm, with 39 components from 25 distinct parts.

Its main chip is the ATMEGA32U4QFN, from the AVR/Arduino family. Other key parts include the DS3231M, MIC5219 and USB-AB. By type, the board carries 15 resistors, 12 capacitors, 4 ICs, 3 diodes, 1 transistor and 1 crystal.

It belongs with the wearables and displays & leds designs in this gallery.

From the project

DIY Smart Watch with ATMEGA32U4 , ST7789 SPI display and RV3028-C7 Extreme Low Power RTC Module

The project is an MCU based smartwatch. The MCU which is used is the ATMEGA32U4. The whole project is powered with the 3.7V 380mAh LQ-S1 lithium battery. I am also using an TFT 240 x 240 IPS ST7789 display with SPI. And the RV-3028-C7 Extreme Low Power RTC Module with I2C. In future revisions, an accelerometer will be added.

Kicad Smart Watch old, from the project README
From the project README

Main components on the Kicad Smart Watch old

DS3231MMIC5219USB-ABATMEGA32U4QFN

Kicad Smart Watch old bill of materials (BOM)

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

QtyPartRefs
1
DS3231M
RV-3028-C7
U1
1
MIC5219
U2
1
USB-AB
U3
1
ATMEGA32U4QFN
U5
1
MMBT3904
Q1
1
16MHZ
16MHz
Y1
1
Display FPC
J3
1
500MA
500mA
F1
1
C2296
Red
LED1
1
C8598
DIODESOD
D1
1
C2296
Green
D2
1
C2296
Yellow
D3
2
10uF
C1, C2
4
1UF
1uF
C3, C7, C11, C12
2
0.1UF
0.1uF
C4, C10
2
22PF
22pF
C5, C6
1
100NF
10nF
C8
1
470pF
C13
2
1K
R1, R2
6
10K
10k
R3, R4, R12, R13, R14, R15
Show 5 more
QtyPartRefs
2
22
R5, R7
2
330
R6, R11
1
10
R8
1
200
10K
R9
1
R_PACK04
R_Pack04
RN2

Kicad Smart Watch old design files

The KiCad project lives in the AFLProjects/DIY-Smart-Watch repository on GitHub; these links point at the commit this page was built from.

Kicad Smart Watch old: common questions

What microcontroller does the Kicad Smart Watch old use?

The Kicad Smart Watch old is built around the ATMEGA32U4QFN, from the AVR/Arduino family.

How big is the Kicad Smart Watch old PCB?

The Kicad Smart Watch old measures 31.1 × 26 mm, has 4 copper layers and is 1.2 mm thick.

How many components are on the Kicad Smart Watch old?

39 components, from 25 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 Kicad Smart Watch old design files?

From the AFLProjects/DIY-Smart-Watch repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Kicad Smart Watch old design in my own project?

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

Can I test firmware for the Kicad Smart Watch old 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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