Skip to the content
2 layers04 ttsumo, the printed circuit board in 3D

Sensor Infravermelho de Oponente 38 kHz (TTSumo) para Robótica Mini-Sumo e ESP32 projetado no KiCad 10

Copper layers
2
Thickness
1.6 mm
Parts
19
Nets
12
Pads
47
Tracks, vias
0, 0
Routed
Not yet
KiCad
KiCad 10.0 (file 20260206)
Created
18 Oct 2026
Updated
18 Oct 2026

Overview

04 ttsumo is an open-source printed circuit board by briel0, from the briel0/ttsumo-sensor-ir repository on GitHub. It is a 2-layer board with 19 parts on 12 nets.

It is built around the NE555D, TSSP58P38 and MBR140W. Its parts include 9 resistors, 4 capacitors, 3 diodes, 2 ICs and 1 connector. It belongs with the sensors and measurement boards of this library.

Main components

3

README

README.md

TTSumo — Sensor Infravermelho de Oponente 38 kHz (KiCad 10)

Módulo sensor óptico de oponente ultracompacto para robôs Mini-Sumo (inspirado no JSumo JS40F), projetado no KiCad 10 com saída nativa em $3{,}3\text{V}$ (compatível com ESP32) e pino ENABLE dedicado para controle individual do emissor infravermelho.

Especificações e Arquitetura

  • Emissor IR ($38{,}9\text{ kHz}$): Oscilador astável com NE555D (SOIC-8, compatível pino a pino com TLC555CD CMOS), $R_1 = 1\text{ k}\Omega$, $R_2 = 18\text{ k}\Omega$, $C_1 = 1\text{ nF}$ (duty cycle simétrico de $\sim 51{,}3%$), acionando LED IR de $940\text{ nm}$ ($5\text{ mm}$) com pulsos de $\sim 31\text{ mA}$ ($R_3 = 68\ \Omega$).
  • Receptor Óptico (TSSP4038 / TSSP58P38): Receptor IR de ganho fixo para feixe contínuo de $38\text{ kHz}$, isolado da linha de alimentação por filtro passa-baixas RC ($R_4 = 100\ \Omega$, $C_2 = 4{,}7\text{ }\mu\text{F}$, $f_c \approx 338\text{ Hz}$).
  • Saída Digital OUT Segura para ESP32 ($3{,}3\text{V}$): Ativa em LOW ($0\text{V} = \text{oponente detectado}$, $\sim 3{,}3\text{V} = \text{livre}$) através de divisor resistivo integrado ($R_5 = 10\text{ k}\Omega$, $R_8 = 15\text{ k}\Omega$) e LED indicador verde SMD 0603 ($R_6 = 4{,}7\text{ k}\Omega$).
  • Controle de ENABLE ($3{,}0\text{V}$): Permite desligar o emissor IR via microcontrolador (nível LOW no pino 4) para evitar crosstalk entre sensores ou realizar leitura passiva, mantendo-se ligado por padrão via divisor $R_7 = 10\text{ k}\Omega$ / $R_9 = 15\text{ k}\Omega$.
  • Proteção de Entrada: Diodo Schottky MBR140W (SOD-123) em série na linha +5V contra inversão de polaridade.

Arquivos do Projeto

Parts

19
QtyValueFootprintReferences
210kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR5, R7
215kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR8, R9
1100Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR4
1100nFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC3
110nFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC4
118kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR2
11kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR1
11nFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC1
14.7kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR6
14.7uFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC2
168Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR3
1Conector_4PConnector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_VerticalJ1
1IR 940nmLED_THT:LED_D5.0mmD1
1LED VerdeLED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolderD2
1MBR140WDiode_SMD:D_SOD-123D3
1NE555DPackage_SO:SOIC-8_3.9x4.9mm_P1.27mmU1
1TSSP58P38OptoDevice:Vishay_MINICAST-3PinU2

Similar boards

  • 2 layers86.5 × 100 mmAC controller print, the printed circuit board in 3D

    AC controller print

    OPIN-Smart-Home/ACControl

    For Developer - Installation - MQTT Topics - Limitations - Future Development

    39 partsApache-2.0
  • 2 layers53.3 × 40.6 mmMCU PCB, the printed circuit board in 3D

    MCU PCB

    Sarthak5604/MCU-PCB

    9 parts
  • 2 layers86.1 × 94.8 mmIR Bored ESP32, the printed circuit board in 3D

    IR Bored ESP32

    MUNAKATA-EPC/Aegis_2025

    テストです

    70 parts2
  • 2 layers90.8 × 64.3 mmKicker-20240411, the printed circuit board in 3D

    Kicker-20240411

    penguin92-prg/2024-TOINIOT2

    TOINIOT 2024年度 メインリポジトリ

    24 parts2
  • 2 layers62.6 × 85.2 mmIR Board V1.0, the printed circuit board in 3D

    IR Board V1.0

    FRhigh-github/2024_Oidengiken

    30 parts
  • 2 layers79 × 57.1 mmIRboard5.0, the printed circuit board in 3D

    IRboard5.0

    kapibaratomo/Soda_DENGIKEN

    24 parts

Questions

What parts does the 04 ttsumo use?

19 parts, built around the NE555D, TSSP58P38 and MBR140W. 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 04 ttsumo KiCad files?

From the briel0/ttsumo-sensor-ir repository on GitHub, at the commit this page was made from: the board is 04_ttsumo.kicad_pcb and its schematic 04_ttsumo.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the 04 ttsumo design in my own project?

Its repository states no licence, so its author keeps all rights: ask briel0 before reusing the design.