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2 layers75.2 × 44.3 mmPeronaBot, the printed circuit board in 3D

Robot de combate de 1lb estilo MeltyBrain

Size
75.2 × 44.3 mm
Copper layers
2
Thickness
0.79 mm
Parts
26
Nets
24
Pads
48
Tracks, vias
119, 69
Pours
3
Routed
Yes
KiCad
KiCad 8.0 (file 20240108)
Created
29 Aug 2025
Updated
30 Oct 2025

Overview

PeronaBot is an open-source printed circuit board by OPRobots, from the OPRobots/PeronaBot repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 75.2 × 44.3 mm with 26 parts on 24 nets, routed with 119 tracks and 69 vias.

It belongs with the robots and motor control boards of this library.

README

README.md

PeronaBot

PeronaBot - Front

Este repositorio documenta el desarrollo de un robot de combate tipo MeltyBrain de 1lb (~454 g).

Software

A rasgos generales, el robot está girando sobre si mismo constantemente a alta velocidad, y el acelerómetro mide las Gs de giro para determinar las RPM del robot. A partir de las RPM se obtiene un tiempo por giro promedio y se encienden los LEDs en el momento correcto para indicar la parte frontal del robot (gracias al efecto de Persisistencia de la visión). De la misma forma, aumentando la velocidad de los motores en el momento correcto, se consigue que el robot se desplace en la dirección deseada.

Hardware

PeronaBot - PCB

  • Peso Máximo: 1lb (454g)
  • Microcontrolador: ESP32-C3 SuperMini
  • Acelerómetro: H3LIS331 con rango de hasta ±400G
  • Regulador: Mini360
  • Motores: 2 × motores brushless 3400KV
  • ESC: 2 × LittleBee-Spring BLHeli_S de 20A
  • LiPo: 2x URUAV 3S 300mAh en paralelo para mayor autonomía
  • Chasis: Impreso en 3D (PLA)
  • Arma: Aro exterior giratorio hecho a partir de un disco de freno de bicicleta de 203mm, modificado para aligerar peso.
  • Control remoto: Sistema de radio con protocolo iBus (FlySky).
  • Otros: Interruptor de encendido mediante tornillo e inserto M3, doble tira de LEDs RGB estilo NeoPixel para feedback de orientación.

Parts

26
QtyValueFootprintReferences
5LOGOLOGOG***, G***, G***, G***, G***
2Conn_01x03_SocketConnector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_VerticalJ4, J7
2G***kibuzzard-68B1DBB9kibuzzard-68B1DBB9, kibuzzard-68B1DBB9
2G***kibuzzard-68B1DBCBkibuzzard-68B1DBCB, kibuzzard-68B1DBCB
1Conn_01x02_Pincustom_footprints:XT30 connectorJ5
1Conn_01x02_Pincustom_footprints:Switch_combat_robot_M3JINTERRUPTOR1
1Conn_01x02_SocketConnector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_VerticalJ3
1Conn_01x04_SocketConnector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_VerticalJ6
1G***kibuzzard-68B1DEE5kibuzzard-68B1DEE5
1G***kibuzzard-68B1DF0Bkibuzzard-68B1DF0B
1G***kibuzzard-68B1DBF2kibuzzard-68B1DBF2
1G***kibuzzard-68B1DED3kibuzzard-68B1DED3
1G***kibuzzard-68B1DEF2kibuzzard-68B1DEF2
1G***kibuzzard-68B1DE26kibuzzard-68B1DE26
1G***kibuzzard-68B1DE3Fkibuzzard-68B1DE3F
1G***kibuzzard-68B1DC00kibuzzard-68B1DC00
1~custom_footprints:H3LIS1_high-gH3LIS1
1~custom_footprints:Mini360DC-DC_5V1
1~custom_footprints:ESP32_superminiESP1

Questions

How big is the PeronaBot PCB?

It measures 75.2 × 44.3 mm and has 2 copper layers, 0.79 mm thick.

What parts does the PeronaBot use?

26 parts. 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 PeronaBot KiCad files?

From the OPRobots/PeronaBot repository on GitHub, at the commit this page was made from: the board is pcb_files/kicad_project/PeronaBot.kicad_pcb and its schematic pcb_files/kicad_project/PeronaBot.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the PeronaBot design in my own project?

Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

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