

Slapdaq board
This is the KiCad project for the SlapDAQ PCB.
- Size
- 88 × 136 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 72
- Nets
- 95
- Pads
- 313
- Tracks, vias
- 399, 127
- Pours
- 13
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 4 Sep 2026
- Updated
- 5 Nov 2026
Overview
Slapdaq board is an open-source printed circuit board by graysonriffe, from the graysonriffe/slapdaq-board repository on GitHub. It is a 4-layer board of 88 × 136 mm with 72 parts on 95 nets, routed with 399 tracks and 127 vias.
It is built around the ESP32-S3-WROOM-1-N16R8, LM2675M-5.0 and MAX31856MUD+, with the ADS1261RHB, DT1042-04SO-7-ES and LM2675M-3.3 among its other parts. Its parts include 30 capacitors, 17 resistors, 7 ICs, 6 diodes and 3 connectors. It belongs with the ESP32 boards of this library.
Main components
12ESP32-S3-WROOM-1-N16R8
SMD,25.5x18mm-103.5dBm -40℃~+65℃ 2.4GHz 20.5dBm 355mA 3V~3.6V 95mA ESP32-S3R8 On-board PCB Antenna UART、SPI、I2C、GPIO、I2S、USB SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi ModulesLM2675M-5.0
SOIC-8-40℃~+125℃@(TJ) 1 1A 2.5mA 260kHz 5V 6.5V~40V Buck Buck Built-in Fixed No SOIC-8 DC-DC Converters ROHSTexas InstrumentsDC-DC ConvertersMAX31856MUD+
TSSOP-14-55℃~+125℃ 1 10uA 19 3V~3.6V Programmable gain、Digital filtering、Built-in temperature sensor SPI Thermocouple-to-Digital Converter TSSOP-14 ADCs/DACs - Special Purpose ROHSMaxim Integrated (Analog Devices)ADCs/DACs - Special PurposeADS1261RHB
QFN32Precision, 10-channel, 40-kSPS, 24-Bit, Delta-Sigma ADCs with PGA and MonitorsTexas InstrumentsUncategorisedDT1042-04SO-7-ES
SOT-23-6LESD And Surge Protection (TVS/ESD)ElecSuperLM2675M-3.3
SOIC-8SOIC-8 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsREF3333AIDBZR
SOT-23-40℃~+125℃ 3.3V 3.5V~5.5V 30ppm/℃ 5mA 8.5uA 92uVp-p Fixed Series ±0.15% SOT-23 Voltage Reference ROHSTexas InstrumentsVoltage Reference594D107X9025R2T
2824-55℃~+125℃ 100uF 25V 90mΩ ±10% 2824 Tantalum Capacitors ROHSVishay IntertechnologyTantalum CapacitorsGCM31CC71E106KA03K
120610uF 25V X7S ±10% 1206 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSMurataMultilayer Ceramic Capacitors MLCC - SMD/SMTAC1206FR-071RL
1206-55℃~+155℃ 1Ω 200V 250mW Thick Film Resistor ±1% ±200ppm/℃ 1206 Chip Resistor - Surface Mount ROHSYAGEOChip Resistor - Surface MountAC1206FR-075K1L
1206-55℃~+155℃ 200V 250mW 5.1kΩ Thick Film Resistor ±1% ±100ppm/℃ 1206 Chip Resistor - Surface Mount ROHSYAGEOChip Resistor - Surface MountBAT60AE6327HTSA1
SOD-323SOD-323 Schottky Diodes ROHSInfineon TechnologiesSchottky Diodes
README
README.mdSlapDAQ Board
This is the KiCad project for the SlapDAQ PCB.
Parts
72| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | 100R | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R2, R3, R6, R7, R8, R9, R10, R11, R14, R15, R16, R17 |
| 6 | 0.1u | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C9, C19, C21, C28, C29, C30 |
| 6 | 1n | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C10, C11, C12, C13, C14, C15 |
| 5 | 0.01u | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C3, C4, C16, C26, C27 |
| 5 | 1u | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C7, C17, C18, C23, C24 |
| 2 | 100u | Capacitor_Tantalum_SMD:CP_EIA-7260-38_AVX-R_HandSolder | C1, C2 |
| 2 | 10u | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C20, C25 |
| 2 | 1R | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R12, R13 |
| 2 | 5.1k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R4, R5 |
| 2 | BAT60A | Diode_SMD:D_SOD-323 | D1, D2 |
| 2 | D_Schottky | Diode_SMD:D_SMA_Handsoldering | D3, D4 |
| 1 | 1.5A SLOW-BLOW | Fuse:Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolder | F1 |
| 1 | 100u | Capacitor_Tantalum_SMD:CP_EIA-7132-28_AVX-C_HandSolder | C6 |
| 1 | 10k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1 |
| 1 | 22u | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C8 |
| 1 | 4.7n | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C22 |
| 1 | 47u | Inductor_SMD:L_Fastron_PISN_Handsoldering | L1 |
| 1 | 68u | Capacitor_Tantalum_SMD:CP_EIA-7132-28_AVX-C_HandSolder | C5 |
| 1 | 68u | Inductor_SMD:L_Fastron_PISN_Handsoldering | L2 |
| 1 | ADS1261 | Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.45x3.45mm_ThermalVias | U6 |
| 1 | DT1042-04SO-7 | Package_TO_SOT_SMD:SOT-23-6 | U4 |
| 1 | ESP32-S3 | RF_Module:ESP32-S3-WROOM-1 | U3 |
| 1 | Higher Screw Terminals | Custom_Footprints:CONN_SD-39512-001_10P_MOL | J1 |
| 1 | LM2675M-3.3 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | LM2675M-5 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | LOGO | LOGO | G*** |
| 1 | Lower Screw Terminals | Custom_Footprints:CONN_SD-39512-001_10P_MOL | J2 |
| 1 | MAX31856 | Package_SO:TSSOP-14_4.4x5mm_P0.65mm | U7 |
| 1 | NetTie_2 | NetTie:NetTie-2_SMD_Pad0.5mm | NT1 |
| 1 | POWER_LED | LED_THT:LED_D5.0mm_Horizontal_O1.27mm_Z3.0mm | D5 |
| 1 | REF3333 | Package_TO_SOT_SMD:SOT-23 | U5 |
| 1 | USB-C | Connector_USB:USB_C_Receptacle_GCT_USB4110 | J3 |
| 1 | WIFI_LED | LED_THT:LED_D5.0mm_Horizontal_O1.27mm_Z3.0mm | D6 |
The 68 most common of 72 parts.
Questions
How big is the Slapdaq board PCB?
It measures 88 × 136 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Slapdaq board use?
72 parts, built around the ESP32-S3-WROOM-1-N16R8, LM2675M-5.0, MAX31856MUD+ and ADS1261RHB. 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 Slapdaq board KiCad files?
From the graysonriffe/slapdaq-board repository on GitHub, at the commit this page was made from: the board is slapdaq-board.kicad_pcb and its schematic ADC.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Slapdaq board design in my own project?
Its repository states no licence, so its author keeps all rights: ask graysonriffe before reusing the design.
Similar boards
- 2 layers

- 4 layers158 × 95 mm

FHNW Pro4E FS19T8-3DPrinterBoard STM32
mnemocron/FHNW-Pro4E-FS19T8-3DPrinterBoard-STM32
Marlin 2.0 compatible 3D printer board based on STM32F103 (KiCad)
264 parts17GPL-3.0 - 2 layers61.5 × 99.1 mm

Venta LW Controller
Alex9779/Venta-LW-Controller
PCB design and instructions to control a Venta LW airwasher with an ESP32
31 parts26 - 2 layers

Gauge driver
bookofthefuture/ev-gauge
SoC, temp and delta gauge pulling data from SimpBMS over CANbus. For ESP32.
18 parts4 - 4 layers40.3 × 57.1 mm

- 4 layers230 × 84.9 mm

- 4 layers52 × 25.4 mm

- 6 layers45.7 × 42.2 mm

Dev board
ericpearson1313/tt_pump_out_chip
60 Hz Liquid‑Pump Controller ASIC with Current‑Drop Shutoff
40 partsApache-2.0