2 layers123 × 87.5 mm
FastLOGIC
Neumi/fastLOGIC
An affordable Arduino-based board designed for straightforward (industrial) logic control, ideal for building small-scale automation and control solutions.
180 parts23MIT
2 layers100 × 55 mm
KynoWave
AlisonTristao/KynoWaveDispositivo IoT para monitoramento do nivel de ruído em ambientes (2º lugar na maratona de inovação 2026/1 - Arena Ação Junior)
- Size
- 100 × 55 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 85
- Nets
- 79
- Pads
- 357
- Tracks, vias
- 640, 109
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 3 May 2026
- Updated
- 25 May 2026
Overview
KynoWave is an open-source printed circuit board by AlisonTristao, from the AlisonTristao/KynoWave repository on GitHub. It is a 2-layer board of 100 × 55 mm with 85 parts on 79 nets, routed with 640 tracks and 109 vias.
It is built around the ESP32-S3-WROOM-1-N8, BME280 and MAX4466EXK+T, with the MEM2075-00-140-01-A, R1M and AMS1117-3.3 among its other parts. Its parts include 37 resistors, 15 capacitors, 6 connectors, 4 diodes and 2 ICs. It belongs with the ESP32 boards of this library.
Main components
7
ESP32-S3-WROOM-1-N8
SMD,25.5x18mm-40℃~+85℃ -98.2dBm 2.4GHz 20.5dBm 355mA 3V~3.6V 95mA Bluetooth5.0 ESP32-S3 Chip On-board PCB Antenna UART、SPI、I2C、I2S、USB SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
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
MAX4466EXK+T
SC-70-5-40℃~+85℃ 0.03% 1-Channel 112dB 2.4V~5.5V 24A SC-70-5 Audio Amplifiers ROHSMaxim Integrated (Analog Devices)Audio AmplifiersMEM2075-00-140-01-A
SMD1.4mm MicroSD Card (TF Card) Push-Push SMD SD Card / Memory Card Connector ROHSGlobal Connector Technology (GCT)SD Card / Memory Card Connector
R1M
SOD-123FL-55℃~+150℃ 1 Independent 1.3V@1A 1A 1kV 500ns 5uA SOD-123FL Fast Recovery / High Efficiency Diodes ROHSMDMFast Recovery / High Efficiency Diodes
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
AO3400A
SOT-23-55℃~+150℃ 1 N-channel 1.45V 1.4W 30V 48mΩ@2.5V 5.7A 50pF 630pF 75pF 7nC@10V N-Channel SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETs
README
README.mdKynoWave
O KynoWave é um projeto de hardware focado na monitorização de ruído acústico em ambientes. Desenvolvido em torno do microcontrolador ESP32-S3.
O projeto foi desenvolvido para participar do desafio da Maratona de Inovação 2026/1, realizada no evento Arena Ação Jr.
Todo o desenvolvimento de hardware e software foi realizado em menos de um mês, dentro do prazo proposto pelo desafio, e o projeto conquistou o 2º lugar na competição.
Características Principais
- Microcontrolador: ESP32-S3.
- Entradas de Áudio: Capacidade para a ligação de até 2 microfones, com ganho ajustável entre 2x e 22x.
- Filtro Anti-aliasing: Filtro anti-aliasing configurado para 100kHz.
- Ecrã LCD: Conexão otimizada via cabo flat (FPC) para interface SPI com ecrã LCD.
- Sensores Ambientais: Integração com sensores de pressão, temperatura e humidade.
- Armazenamento Local: Interface para cartão de memória usando conexão SPI.
- Expansibilidade: Disponibilização de 15 GPIOs genéricos através de um conector lateral. Estes pinos permitem a adição de sensores extra e suportam integração com módulos de câmara e sensores i2c.
Abaixo, a fotografia detalhada da PCB:
Parts
85| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | pull_up | Resistor_SMD:R_0805_2012Metric | R5, R6, R26, R27, R28, R29, R36, R37, R38, R39, R40, R41 |
| 8 | SW_6mm_SMD | Library:SW_TS08-66-43-BK-160-SMT-67-TR | SW_1, SW_2, SW_3, SW_4, SW_5, SW_6, SW_boot1, SW_reset1 |
| 4 | R1M | Resistor_SMD:R_0805_2012Metric | R14, R15, R21, R22 |
| 4 | R2k | Resistor_SMD:R_0805_2012Metric | R16, R18, R19, R20 |
| 3 | C0.1uF | Capacitor_SMD:C_0805_2012Metric | C4, C5, C9 |
| 3 | C10nF | Capacitor_SMD:C_0805_2012Metric | C3, C6, C15 |
| 3 | Conn_01x15_Pin | Connector_PinHeader_2.54mm:PinHeader_1x15_P2.54mm_Vertical | J2, J3, J4 |
| 3 | LED | LED_SMD:LED_0805_2012Metric | D4, D5, D6 |
| 3 | R220 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R12, R17, R24 |
| 2 | C100pF | Capacitor_SMD:C_0805_2012Metric | C1, C8 |
| 2 | C1pF | Capacitor_SMD:C_0805_2012Metric | C2, C7 |
| 2 | C1uF | Capacitor_SMD:C_0805_2012Metric | C11, C13 |
| 2 | C4.7pF | Capacitor_SMD:C_0805_2012Metric | C12, C14 |
| 2 | MAX4466EXK | Library:SOT65P210X110-5N | amplificador_mic1, amplificador_mic2 |
| 2 | R10k | Resistor_SMD:R_0805_2012Metric | R11, R25 |
| 2 | R200k | Potentiometer_SMD:Potentiometer_Bourns_3314G_Vertical | RV1, RV2 |
| 2 | R20k | Resistor_SMD:R_0805_2012Metric | R13, R31 |
| 2 | R22 | Resistor_SMD:R_0805_2012Metric | R3, R4 |
| 2 | R330 | Resistor_SMD:R_0805_2012Metric | R32, R33 |
| 2 | R4.7k | Resistor_SMD:R_0805_2012Metric | R34, R35 |
| 2 | R5.1k | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 2 | conector_p2 | Connector_Audio:Jack_3.5mm_CUI_SJ-3523-SMT_Horizontal | AudioPlug1, AudioPlug2 |
| 2 | off | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP1, JP2 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | step_down_3.3 |
| 1 | AO3400A | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | BME280 | Package_LGA:Bosch_LGA-8_2.5x2.5mm_P0.65mm_ClockwisePinNumbering | U2 |
| 1 | C10uF | Capacitor_SMD:C_0805_2012Metric | C10 |
| 1 | Conn_01x02_Pin | Connector_Molex:Molex_KK-254_AE-6410-02A_1x02_P2.54mm_Vertical | J5 |
| 1 | ESP32-S3-WROOM-1 | Espressif:ESP32-S3-WROOM-1U | U1 |
| 1 | FFC2B35-14-G_REVA2 | Library:GCT_FFC2B35-14-G_REVA2 | J1 |
| 1 | LED | LED_THT:LED_D1.8mm_W1.8mm_H2.4mm_Horizontal_O1.27mm_Z1.6mm | D7 |
| 1 | MEM2075-00-140-01-A | Library:MEM2075-00-140-01-A_GCT | J6 |
| 1 | PCM1808PWR | Library:SOP65P640X120-14N | i2S_converter1 |
| 1 | R220 | Resistor_SMD:R_0805_2012Metric | R30 |
| 1 | SW_Nidec_CAS-120A1 | Button_Switch_SMD:SW_SPDT_CK_JS102011SAQN | on_off1 |
| 1 | USB_C_Receptacle_USB2.0_14P | Connector_USB:USB_C_Receptacle_XKB_U262-16XN-4BVC11 | USB_C1 |
| 1 | pull_down | Resistor_SMD:R_0805_2012Metric | R23 |
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Questions
How big is the KynoWave PCB?
It measures 100 × 55 mm and has 2 copper layers, 1.6 mm thick.
What parts does the KynoWave use?
85 parts, built around the ESP32-S3-WROOM-1-N8, BME280, MAX4466EXK+T and MEM2075-00-140-01-A. 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 KynoWave KiCad files?
From the AlisonTristao/KynoWave repository on GitHub, at the commit this page was made from: the board is hardware_v1.0.0/KynoWave.kicad_pcb and its schematic hardware_v1.0.0/KynoWave.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the KynoWave design in my own project?
Its repository states no licence, so its author keeps all rights: ask AlisonTristao before reusing the design.