HardLabs

Bear magotchi

heonaliu·bear-magotchi·PCB/tamagotchi.kicad_pcb

Bear magotchi PCB layout, top view — open source ESP32 board by heonaliu

About the Bear magotchi PCB

Bear magotchi is an open source ESP32 PCB design by heonaliu, published on GitHub under the MIT license. It is a 2-layer board measuring 80.5 × 69.3 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 designs in this gallery.

From the project

A custom bear-style case tamagotchi. Made by 17 y/o Heona Liu. This was my first full on hardware project, so I'm pretty proud of myself. Every step was a learning process: from KiCad interface, PCB routing, OnShape building, to coding with Arduino IDE for firmware and designing

A custom bear-style case tamagotchi. Made by 17 y/o Heona Liu. This was my first full on hardware project, so I'm pretty proud of myself. Every step was a learning process: from KiCad interface, PCB routing, OnShape building, to coding with Arduino IDE for firmware and designing a zine.

This tamagotchi has 3 stats: hunger, energy, and happiness! You can play around with the different levels by using the buttons, each mapped to different functions. This was built by following TaniWankenobi's tamagotchi PCB tutorial. All 4 faces on the bearmagotchi are custom drawn!

Bear magotchi, from the project README
From the project README

Main components on the Bear magotchi

XIAO-ESP32-C3-SMDHS96L03W2C03

Bear magotchi 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
SUN-12095-5VPA7.6
S&S(海旭)
BUZZER1
3
SW_Push
SW1, SW2, SW3

Bear magotchi design files

The KiCad project lives in the heonaliu/bear-magotchi repository on GitHub; these links point at the commit this page was built from.

Bear magotchi: common questions

What microcontroller does the Bear magotchi use?

The Bear magotchi is built around the XIAO-ESP32-C3-SMD, from the ESP32 family.

How big is the Bear magotchi PCB?

The Bear magotchi measures 80.5 × 69.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Bear magotchi?

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 Bear magotchi design files?

From the heonaliu/bear-magotchi 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 Bear magotchi design in my own project?

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

Can I test firmware for the Bear magotchi 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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