2 layers78.6 × 72.6 mm CyberPet, the printed circuit board in 3D

CyberPet

A smart buddy that sits on your desk!

Size: 78.6 × 72.6 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 18
Nets: 19
Pads: 74
Tracks, vias: 237, 29
Pours: 1
Routed: Yes
KiCad: KiCad 9.0 (file 20241229)
Created: 27 Jun 2026
Updated: 26 Oct 2026

Overview

CyberPet is an open-source printed circuit board by aryanscodingden, from the aryanscodingden/desk-buddy repository on GitHub. It is a 2-layer board of 78.6 × 72.6 mm with 18 parts on 19 nets, routed with 237 tracks and 29 vias.

It is built around the BME280. Its parts include 4 diodes, 4 switches, 2 resistors and 2 ICs. It belongs with the ESP32 and RISC-V boards of this library.

Main components

BME280
LGA-8(2.5x2.5)-40℃~+85℃ 0%RH~100%RH 1.71V~3.6V 1.8uA 16bit I2C、SPI ±0.5℃ ±3%RH LGA-8(2.5x2.5) Temperature and Humidity Sensor ROHSBoschTemperature And Humidity Sensor

README

README.md

Desk Buddy

A smart buddy that sits on your desk & can control your room. It can sense the temprature and turn on the AC or Fan depneding on how hot it is! My main motivation to build this is cus I wanted to control all my appliences with a phyiscal device & also wanted to experiment w/ a IR Blaster. Desk Buddy A5

Schematic

It uses a ESP32-C3 as the main board, a BME680 as temp sensor paired with 2 IR diodes & a 0.96 OLED Screen! This schematic was made in KiCAD

PCB

A simple 2 layer PCB to accomadate all of the componets.

Case

RENDERS

This case was designed in Fusion 360. The case & PCB are held together by M3 Screws

Firmware

The firmware is written in C++ and will be edited/deployed from Arduino IDE.

Bill of Materials (BOM)

Sr. No.	Item	Unit Price	Link
1	ESP32-C3	₹383 ($4.06)	https://robocraze.com/products/nodemcu-32-wifi-bluetooth-esp32-development-board30-pin
2	0.96" OLED Display	₹159 ($1.69)	https://robocraze.com/products/0-96in-oled-display-module-4pin
3	IR Diodes	₹26 ($0.28)	https://robu.in/product/5mm-940nm-infrared-receiver-led-ir-diode-led-pack-of-5/
4	Tactile Push Button Switch Assorted Kit	₹156 ($1.65)	https://robocraze.com/products/tactile-push-button-switch-assorted-kit-25-pieces-pack
5	LiPo Battery	₹235 ($2.49)	https://robu.in/product/500mah-pcm-protected-micro-li-po-battery-2/
6	BME680 Temperature Sensor	₹749 ($7.64)	https://www.amazon.in/Panel-Mount-Momentary-Button-Switch/dp/B0B54XV8D2
7	WS2812B RGB LED	₹172 ($1.82)	https://robu.in/product/ws2812b-rgb-addressable-led-module/
8	3D Print	₹1,376 ($14.08)	https://www.amazon.in/3IDEA-Bambu-Translucent-Printing-Filament/dp/B0GT9GW2H7
9	PCB	₹900.00 ($9.54)	robu.in

TOTAL COST: ₹4,156 ($44.02)

Parts

Qty	Value	Footprint	References
4	SW_Push	Button_Switch_THT:SW_PUSH_6mm_H5mm	SW1, SW2, SW3, SW4
2	100Ω	Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal	R1, R2
2	IR DIODE	LED_THT:LED_D5.0mm	D1, D2
2	NeoPixel_THT	LED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm	D3, D4
1	BME280	Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical	U2
1	Battery_Cell	Downloads:JST PH B2B P2.00mm Vertical	BT1
1	Screen 0.9 OLED	0.96_OLED:OLED SSD1306 I2C 0.96	Brd1
1	XIAO-ESP32-C3-SMD	ESP32 C3:XIAO-ESP32-C3-SMD	U1

The 14 most common of 18 parts.

Questions

How big is the CyberPet PCB?

It measures 78.6 × 72.6 mm and has 2 copper layers, 1.6 mm thick.

What parts does the CyberPet use?

18 parts, built around the BME280. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the CyberPet KiCad files?

From the aryanscodingden/desk-buddy repository on GitHub, at the commit this page was made from: the board is PCB Files/CyberPet.kicad_pcb and its schematic PCB Files/CyberPet.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the CyberPet design in my own project?

Its repository states no licence, so its author keeps all rights: ask aryanscodingden before reusing the design.

Category and platform

ESP32 RISC-V

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/aryanscodingden-desk-buddy" title="CyberPet in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/aryanscodingden-desk-buddy.jpg" alt="CyberPet" width="1200" height="900">

A picture that opens the board, for a README

[![CyberPet](https://pcbkit.io/embed/boards/aryanscodingden-desk-buddy.jpg?size=s)](https://pcbkit.io/boards/aryanscodingden-desk-buddy)

Source

Repository: aryanscodingden/desk-buddy
Board file: PCB Files/CyberPet.kicad_pcb
Commit: 3b75aa0
Licence: Not stated

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