HardLabs

Tucklet

RebornBeat·Tucklet·hardware/variants/duale22-mini-microsd/standard/tucklet-duale22-mini-microsd.net

This repository ships a schematic but no board layout.

About the Tucklet PCB

Tucklet is an open source ESP32 PCB design by RebornBeat, published on GitHub under the Custom license license. It is a board, with 24 components from 16 distinct parts.

Its main chip is the ESP32-E22-MINI-1, from the ESP32 family. Other key parts include the GL3224-OEM, BQ25896RTWT, MAX17048G+T10, TPS62840-class and TXS02612RTWR. By type, the board carries 11 resistors, 7 ICs, 2 connectors, 1 battery holder, 1 switch and 1 LED.

It belongs with the iot & wireless and power & battery designs in this gallery.

From the project

A pocket-sized companion drive that clips to your phone like a charm and holds your memories — no data cable, no babysitting, no clutter.

This directory holds the complete electrical design for every Tucklet board variant. It is organized so that "what is what" is obvious:

Tucklet variants are defined by three axes: Radio, Storage, and Form Factor. The generator enforces a "Charm-Only" strategy, excluding oversized modules to ensure every board fits the intended product identity.

Each variants// folder contains, all generated and mutually consistent:

Main components on the Tucklet

ESP32-E22-MINI-1GL3224-OEMBQ25896RTWTMAX17048G+T10TPS62840-classTXS02612RTWR

Tucklet bill of materials (BOM)

24 components, 16 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
ESP32-E22-MINI-1
U1, U1B
1
GL3224-OEM
GL3224-OIY04 USB 3.0 SD Bridge
U2
1
BQ25896RTWT
BQ25896RTWT Power-Path Charger
U3
1
MAX17048G+T10
U4
1
TPS62840-class
3V3 buck (>=2A for E22)
U5
1
TXS02612RTWR
TXS02612RTWR SD 2:1 bus mux
U6
1
USB4105-GF-A-060
USB4105-GF-A-060 USB-C receptacle
J1
1
DM3D-SF
DM3D-SF microSD push-push socket
J2
1
BM02B-ACHSS-GAN-ETF + cell
LiPo 300-500mAh + PCM
BT1
1
B3U-1000P
B3U-1000P tactile button
SW1
1
WS2812B-2020-V6
LED1
1
USBLC6-2SC6
USB ESD array
D1
2
RC0402FR-075K1L
5.1k
R1, R2
1
RC0402FR-072KL
2k
R3
2
RC0402FR-074K7L
4.7k
R4, R5
6
RC0402FR-0710KL
10k
R6, R7, R8, R9, R10, R11

Tucklet design files

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

Tucklet: common questions

What microcontroller does the Tucklet use?

The Tucklet is built around the ESP32-E22-MINI-1, from the ESP32 family.

How many components are on the Tucklet?

24 components, from 16 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 Tucklet design files?

From the RebornBeat/Tucklet repository on GitHub, which has a netlist and the BOM; the links under Design files point to each one.

Can I use the Tucklet design in my own project?

It is published under Custom license, which limits how it may be reused; read the license before building on it.

Can I test firmware for the Tucklet 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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