2 layers22 × 52 mm
XIAO AUDIO
mmontee/nrf52840_openWSN_sensor_node
This projects goal is to implement a acoustic sensor node using the XIAO nrf52840 and openWSN.
39 partsMIT
2 layers92.7 × 88.9 mm
ECE 445 - Suction Sense PCB-1
hpalin2/SeniorDesignProject- Size
- 92.7 × 88.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 48
- Nets
- 56
- Pads
- 179
- Tracks, vias
- 302, 36
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 4 Sep 2025
- Updated
- 9 Dec 2025
Overview
ECE 445 - Suction Sense PCB-1 is an open-source printed circuit board by hpalin2, from the hpalin2/SeniorDesignProject repository on GitHub. It is a 2-layer board of 92.7 × 88.9 mm with 48 parts on 56 nets, routed with 302 tracks and 36 vias.
It is built around the ESP32-WROOM-32E, AP62150Z6 and TPS2121RUXR. Its parts include 13 capacitors, 13 resistors, 5 ICs, 5 connectors and 2 diodes. It belongs with the ESP32 boards of this library.
Main components
3
ESP32-WROOM-32E
SMD,18x25.5mmSMD,18x25.5mm WiFi Modules ROHSEspressif SystemsWiFi Modules
AP62150Z6
SOT-563-40℃~+125℃ 1 1.3MHz 1.5A 135uA 4.2V~18V 800mV~7V Adjustable Buck Buck Built-in Yes SOT-563 DC-DC Converters ROHSDiodes IncorporatedDC-DC ConvertersTPS2121RUXR
VQFN-HR-12(2x2.5)-40℃~+125℃ 2.8V~22V 200uA 56mΩ VQFN-HR-12(2x2.5) ORing Controllers ROHSTexas InstrumentsBattery Management
Parts
48| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 3 | 1.5K | Resistor_SMD:R_0508_1220Metric | R2, R6, R8 |
| 2 | 4.7uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C6, C7 |
| 2 | 5.1K | Resistor_SMD:R_0508_1220Metric | R3, R9 |
| 2 | 850 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4, R10 |
| 2 | LED_Small | LED_SMD:LED_0805_2012Metric | D1, D2 |
| 1 | 0.001uF | Capacitor_SMD:CP_Elec_8x5.4 | C5 |
| 1 | 0.1uF | Capacitor_SMD:CP_Elec_8x5.4 | C1 |
| 1 | 0.1uf | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C12 |
| 1 | 100nF | Capacitor_SMD:CP_Elec_8x5.4 | C2 |
| 1 | 10K | Resistor_SMD:R_0508_1220Metric | R1 |
| 1 | 10uf | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C10 |
| 1 | 120k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R7 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C8 |
| 1 | 1uf | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C13 |
| 1 | 2.2K | Resistor_SMD:R_0508_1220Metric | R5 |
| 1 | 2.2uH | Inductor_SMD:L_Changjiang_FTC201655S | L2 |
| 1 | 20k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R12 |
| 1 | 22uF | Capacitor_SMD:CP_Elec_8x5.4 | C4 |
| 1 | 22uf | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C11 |
| 1 | 3.3uH | Inductor_SMD:L_Changjiang_FTC201655S | L1 |
| 1 | 3.7+ | TestPoint:TestPoint_Pad_D2.0mm | TP1 |
| 1 | 3v3 | TestPoint:TestPoint_Pad_D2.0mm | TP2 |
| 1 | 440uf | Capacitor_SMD:CP_Elec_8x5.4 | C3 |
| 1 | 44uf | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C9 |
| 1 | 5k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R13 |
| 1 | AP62150Z6 | Package_TO_SOT_SMD:TSOT-23-6_HandSoldering | U3 |
| 1 | BUCK_IN | TestPoint:TestPoint_Pad_D2.0mm | TP3 |
| 1 | Barrel_Jack | Connector_BarrelJack:BarrelJack_CUI_PJ-036AH-SMT_Horizontal | J4 |
| 1 | Battery Connector | Battery:BatteryHolder_Keystone_1057_1x2032 | J3 |
| 1 | Conn_01x06_Pin | Connector_Molex:Molex_KK-396_A-41791-0006_1x06_P3.96mm_Vertical | J5 |
| 1 | ESP32-WROOM-32E | RF_Module:ESP32-WROOM-32D | U1 |
| 1 | MCP73831-2-OT | Package_TO_SOT_SMD:SOT-23-5 | U4 |
| 1 | Motion Sensor | Connector_Molex:Molex_KK-254_AE-6410-03A_1x03_P2.54mm_Vertical | J2 |
| 1 | Paddle Sensor | Connector_Molex:Molex_KK-254_AE-6410-03A_1x03_P2.54mm_Vertical | J1 |
| 1 | R | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R14 |
| 1 | TPS2121RUXR | KiCadExtras:IC_TPS2121RUXR | U2 |
| 1 | TPS613222ADBVR | KiCadExtras:SOT95P280X145-5N | U5 |
| 1 | Thermistor | Resistor_SMD:R_0508_1220Metric | TH1 |
Questions
How big is the ECE 445 - Suction Sense PCB-1 PCB?
It measures 92.7 × 88.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ECE 445 - Suction Sense PCB-1 use?
48 parts, built around the ESP32-WROOM-32E, AP62150Z6 and TPS2121RUXR. 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 ECE 445 - Suction Sense PCB-1 KiCad files?
From the hpalin2/SeniorDesignProject repository on GitHub, at the commit this page was made from: the board is boards/ECE 445 - Suction Sense PCB-1.kicad_pcb and its schematic boards/ECE 445 - Suction Sense PCB-1.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ECE 445 - Suction Sense PCB-1 design in my own project?
Its repository states no licence, so its author keeps all rights: ask hpalin2 before reusing the design.
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