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Lego tamagotchi

shelxty·lego-tamagotchi·pcb/tamagotchi.kicad_pcb

Lego tamagotchi PCB layout, top view — open source ESP32 board by shelxty
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About the Lego tamagotchi PCB

Lego tamagotchi is an open source ESP32 PCB design by shelxty, published on GitHub. It is a 2-layer board measuring 64.3 × 76.8 mm, with 7 components from 5 distinct parts.

Its main chip is the XIAO-ESP32-C3-SMD, from the ESP32 family. Other key parts include the HS96L03W2C03. By type, the board carries 3 switches, 2 ICs and 1 battery holder.

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

From the project

Simple tamagotchi with OLED display screen, buzzer, and 3 buttons custom-made in KiCad, with parts assembled in OnShape.

This is a tamagotchi (a virtual pet) modeled after a lego piece! Created for Hack Club's #Fallout YSWS. It's my first larger-scale hardware project!

He says hello! And also asks you to help him find a name! (Because I'm not creative)

Anyways, this is my first completed hardware project that uses both PCBs and CAD. Thank you Tanishq!

- Tool: KiCad 10 - Board: 2-layer PCB with a custom outline - Microcontroller: The Seeed Studio XIAO ESP32-C3 - Display: A 0.96" 128x64 OLED display with a SSD1315 driver - Audio: A piezoelectric buzzer approximately 12 millimeters in diameter - Input: 3 push…

Lego tamagotchi, from the project README
From the project README

Main components on the Lego tamagotchi

XIAO-ESP32-C3-SMDHS96L03W2C03

Lego tamagotchi bill of materials (BOM)

7 components, 5 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
XIAO-ESP32-C3-SMD
U1
1
HS96L03W2C03
HS(汉昇)
U2
1
Battery_Cell
BT1
1
1207-P6.5MM
XHXDZ(兴华鑫)
BUZZER1
3
TS-1088-AR02016
SW_Push
SW1, SW2, SW3

Lego tamagotchi design files

The KiCad project lives in the shelxty/lego-tamagotchi repository on GitHub; these links point at the commit this page was built from.

Lego tamagotchi: common questions

What microcontroller does the Lego tamagotchi use?

The Lego tamagotchi is built around the XIAO-ESP32-C3-SMD, from the ESP32 family.

How big is the Lego tamagotchi PCB?

The Lego tamagotchi measures 64.3 × 76.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Lego tamagotchi?

7 components, from 5 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 Lego tamagotchi design files?

From the shelxty/lego-tamagotchi 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 Lego tamagotchi design in my own project?

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

Can I test firmware for the Lego tamagotchi without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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