HardLabs

Yii

Milk-Cool·yii·kicad/yii.kicad_pcb

Yii PCB layout, top view — open source ESP32 board by Milk-Cool

About the Yii PCB

Yii is an open source ESP32 PCB design by Milk-Cool, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 48.3 × 59.7 mm, with 5 components from 5 distinct parts.

Its main chip is the ESP32 p1-15, from the ESP32 family. By type, the board carries 4 connectors and 1 switch.

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

From the project

tomodachi life-style mii dolls with esp32's inside

note that even though i'd recommend a pcb, it's not really necessary to use a pcb since all the components are held together by plush anyway. you can also see a list of components in bom.csv.\ as for the dolls themselves, go creative! i found these on aliexpress, and dyed them with fabric paint. i also glued on velcro with fabric glue for attaching the facial features (face/ for files to be printed), and used a zip locker so that i can open and close them to take components out when needed.

Yii, from the project README
From the project README

Yii bill of materials (BOM)

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

QtyPartRefs
1
TP4056
J1
1
ESP32 p1-15
J2
1
ESP32 p16-30
J3
1
Conn_01x07_Socket
J4
1
SW_SPDT_XKB_DMx-xxxx-1
SW1

Yii design files

The KiCad project lives in the Milk-Cool/yii repository on GitHub; these links point at the commit this page was built from.

Yii: common questions

What microcontroller does the Yii use?

The Yii is built around the ESP32 p1-15, from the ESP32 family.

How big is the Yii PCB?

The Yii measures 48.3 × 59.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Yii?

5 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 Yii design files?

From the Milk-Cool/yii 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 Yii design in my own project?

Yes, under the terms of its GPL-3.0 license, which Milk-Cool chose for the repository.

Can I test firmware for the Yii 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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