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Penguin Paddle

Waddle-Penguin·Penguin_Paddle·Penguin_Paddle_Files/Penguin_Paddle.kicad_pcb

Penguin Paddle PCB layout, top view — open source ESP32 board by Waddle-Penguin
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About the Penguin Paddle PCB

Penguin Paddle is an open source ESP32 PCB design by Waddle-Penguin, published on GitHub. It is a 2-layer board measuring 64.2 × 68.9 mm, with 13 components from 9 distinct parts.

Its main chip is the XIAO-ESP32-S3-DIP, from the ESP32 family. By type, the board carries 3 connectors, 2 switches, 2 test points, 1 IC, 1 transistor and 1 speaker.

From the project

Penguin Paddle is my own touch-sensitive iambic morse code keyer

Design Time: ~21 Hours Build Time: ~5 Hours

Hi everybody, this is the project I've been working on recently for Hackclub's Undercity.

Penguin Paddle is my own touch-sensitive iambic morse code keyer that has multiple differrent output options, including a buzzer to make sound. It is designed with future expansion in mind with mounting holes and solder joints for potentially adding vertical pads in the future (Which will be printed as a snap-off section of my PCB), as well as a usb-c port for keyboard support.

Penguin Paddle, from the project README
From the project README

Main components on the Penguin Paddle

XIAO-ESP32-S3-DIP

Penguin Paddle bill of materials (BOM)

13 components, 9 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
XIAO-ESP32-S3-DIP
U1
1
NPN
Q1
2
CONN_01X01_SOCKET
Conn_01x01_Socket
J1, J3
1
AUDIOPLUG3
AudioPlug3
J2
1
PS1240P02BT
LS1
2
R_Potentiometer
RV1, RV2
2
SW_SPST
SW1, SW2
2
TestPoint
TP1, TP2
1
1k
R1

Penguin Paddle design files

The KiCad project lives in the Waddle-Penguin/Penguin_Paddle repository on GitHub; these links point at the commit this page was built from.

Penguin Paddle: common questions

What microcontroller does the Penguin Paddle use?

The Penguin Paddle is built around the XIAO-ESP32-S3-DIP, from the ESP32 family.

How big is the Penguin Paddle PCB?

The Penguin Paddle measures 64.2 × 68.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Penguin Paddle?

13 components, from 9 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 Penguin Paddle design files?

From the Waddle-Penguin/Penguin_Paddle 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 Penguin Paddle design in my own project?

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

Can I test firmware for the Penguin Paddle 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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