2 layers91.5 × 100 mm
Trailmap
katetriestocode/trailmap
this is the working version! (disclaimer: no antenna as it has not delivered yet, so manual gps coords insertion for now!)
57 parts2
2 layers63.5 × 58.4 mm
Ads1299 test board
Spiros7bit/BigBrain1- Size
- 63.5 × 58.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 72
- Nets
- 116
- Pads
- 379
- Tracks, vias
- 596, 115
- Pours
- 22
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 12 May 2026
- Updated
- 23 Aug 2026
Overview
Ads1299 test board is an open-source printed circuit board by Spiros7bit, from the Spiros7bit/BigBrain repository on GitHub. It is a 2-layer board of 63.5 × 58.4 mm with 72 parts on 116 nets, routed with 596 tracks and 115 vias.
It is built around the ESP32-S3-WROOM-1-N8, AP2112K-3.3 and TPD4E05U06DQAR, with the TPS7A2050PDBVR, CAY16-2201F4LF and W2A45C103MAT2A among its other parts. Its parts include 25 resistors, 19 capacitors, 8 ICs, 7 connectors and 2 diodes. It belongs with the ESP32 boards of this library.
Main components
9
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
AP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorised
TPD4E05U06DQAR
USON-10-40℃~+125℃ 0.5pF 10nA 14V 2.5A@8/20us 40W@8/20us 5.5V 6.5V ESD Four channels IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 Unidirectional USON-10(1x2.5) ESD and Surge Protection (TVS/ESD) ROHSTexas InstrumentsESD Protection DevicesTPS7A2050PDBVR
SOT-23-5-40℃~+125℃@(Tj) 1 10uVrms 140mV@(300mA) 300mA 5V 6.5uA 65dB@(100Hz) 6V Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown、Enable control、Input under-voltage protection、Output discharge、Built-in soft-start Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
CAY16-2201F4LF
0603x42.2kΩ 4 62.5mW 8 ±1% ±200ppm/℃ 0603x4 Resistor Networks, Arrays ROHSBournsResistor Networks & Arrays
W2A45C103MAT2A
050810nF 4 50V Isolation X7R ±20% 0508 Capacitor Networks, Arrays ROHSKyocera AVXCapacitor Networks, Arrays
1N4448W
SOD-1231 Independent 1.25V@150mA 2.5uA 2A 4ns 500mA 500mW 75V SOD-123 Switching Diodes ROHSGuangdong HottechSwitching Diodes
AO3407A
SOT-231 P-Channel 1.4W 1.8V 14.3nC@4.5V 30V 37mΩ@10V、52mΩ@4.5V 4.2A 700pF 75pF SOT-23 MOSFETs ROHSUMWMOSFETs
EG1218
插件-20℃~+70℃ 11.6mm 200mA 30V 4mm 7.4mm Black PC Pin Rectangular Columnar SPDT Through Hole Plugin Slide Switches ROHSE-SwitchSlide Switches
Parts
72| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 10k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R12, R15, R18, R19, R26, R27, R28, R29, R30 |
| 6 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | TP1, TP2, TP3, TP3.3v1, TP4, TP5v1 |
| 4 | 0.1uF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C8, C11, C22, C24 |
| 4 | 1uF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C7, C9, C10, C28 |
| 4 | CAY16-2201F4LF | CAY16-2201F4LF:RESCAX80P160X320X60-8N | R23, R31, R32, R33 |
| 4 | W2A45C103MAT2A | W2A45C103MAT2A:W2A45C103MAT2A | CN1, CN2, CN3, CN4 |
| 3 | 10K | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R17, R20, R21 |
| 3 | 20uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C17, C18, C19 |
| 2 | 10uF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C1, C16 |
| 2 | 4.7uF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C12, C13 |
| 2 | 5k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R10, R11 |
| 1 | 100k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R14 |
| 1 | 100uF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C6 |
| 1 | 15nF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C26 |
| 1 | 1M | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R25 |
| 1 | 1N4448W | Diode_SMD:D_SOD-123 | D2 |
| 1 | 1ohm | Package_TO_SOT_SMD:TO-252-2_TabPin1 | R13 |
| 1 | 2.2uH | Inductor_SMD:L_Wuerth_HCI-5040 | L2 |
| 1 | 200pF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C15 |
| 1 | 22uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C21 |
| 1 | 330 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R9 |
| 1 | 5.1K | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | R24 |
| 1 | 5K | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | R22 |
| 1 | 825k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R16 |
| 1 | ADS1299 | Package_QFP:TQFP-64_10x10mm_P0.5mm | U1 |
| 1 | AO3407A | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U6 |
| 1 | Conn_01x02 | Connector_JST:JST_EH_B2B-EH-A_1x02_P2.50mm_Vertical | J1 |
| 1 | Conn_02x10_Counter_Clockwise | Connector_IDC:IDC-Header_2x10_P2.54mm_Vertical | J2 |
| 1 | EG1218 | Button_Switch_THT:SW_Slide-03_Wuerth-WS-SLTV_10x2.5x6.4_P2.54mm | SW1 |
| 1 | ESP32-S3-WROOM-1 | RF_Module:ESP32-S3-WROOM-1 | U3 |
| 1 | Fuse_Small | Fuse:Fuse_2512_6332Metric_Pad1.52x3.35mm_HandSolder | F1 |
| 1 | LED | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | MCP73832-2-OT | Package_TO_SOT_SMD:SOT-23-5 | U2 |
| 1 | OPA376xxDBV | Package_TO_SOT_SMD:SOT-23-5 | U5 |
| 1 | PTS810SJM250SMTR LFS | Button_Switch_SMD:SW_SPST_PTS810 | SW2 |
| 1 | TPD4E05U06DQA | Package_SON:USON-10_2.5x1.0mm_P0.5mm | U7 |
| 1 | TPS61023DRLR | Package_TO_SOT_SMD:SOT-563 | IC1 |
| 1 | TPS7A2050PDBVR | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | IC2 |
| 1 | USB_C_Plug_USB2.0 | Connector_USB:USB_C_Receptacle_G-Switch_GT-USB-7010ASV | P1 |
Questions
How big is the Ads1299 test board PCB?
It measures 63.5 × 58.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Ads1299 test board use?
72 parts, built around the ESP32-S3-WROOM-1-N8, AP2112K-3.3, TPD4E05U06DQAR and TPS7A2050PDBVR. 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 Ads1299 test board KiCad files?
From the Spiros7bit/BigBrain repository on GitHub, at the commit this page was made from: the board is ads1299_test_board/ads1299_test_board.kicad_pcb and its schematic ads1299_test_board/ESP32_S3_WROOM.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Ads1299 test board design in my own project?
Its repository states no licence, so its author keeps all rights: ask Spiros7bit before reusing the design.
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