# Washable Quilt Sensor Pod

## Description

Detachable rechargeable BLE corner pod for a washable 3×3 textile capacitive\-sensing quilt, with six protected electrode inputs, USB\-C charging, and a protected 1\-cell LiPo connection\.

## Project Details

- **Owner:** 3m4n73l
- **Created:** 8/22/2026
- **Last Updated:** 8/22/2026
- **Visibility:** Public

## Key Components

### D1 — [TPD3E001DRLR](https://flux.ai/kicad-part-library/tpd3e001drlr~6l.md)

- Role: ESD Protection
- Datasheet URL: http://www\.ti\.com/lit/ds/symlink/tpd3e001\.pdf
- Package or Case Code: SOT\-553
- Manufacturer Name: Texas Instruments Inc\.
- Functional Group: Textile Interface
- Role Details: Low\-capacitance protection for six CapSense electrode lines
- Manufacturer Part Number: TPD3E001DRLR

**Pins:**
- \~ [pin 3]
- \~ [pin 5]
- IO1 [pin 1]
- IO2 [pin 2]
- IO3 [pin 4]

### D3 — [TPD2E2U06DCKR](https://flux.ai/lcsc/tpd2e2u06dckr~6ori.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Manufacturer Name: TI\(德州仪器\)
- Manufacturer Part Number: TPD2E2U06DCKR
- Role Details: USB\-C CC1/CC2 ESD protection close to receptacle
- JLCPCB Part Class: Extended Part
- Part Type: TVS
- Package or Case Code: SC\-70\-3\_L2\.0\-W1\.3\-P0\.65\-LS2\.1\-BL
- Datasheet URL: https://www\.ti\.com/lit/ds/symlink/tpd2e2u06\.pdf?HQS=dis\-dk\-null\-digikeymode\-dsf\-pf\-null\-wwe&ts=1779250564192&ref\_url=https%253A%252F%252Fwww\.ti\.com%252Fgeneral%252Fdocs%252Fsuppproductinfo\.tsp%253FdistId%253D10%2526gotoUrl%253Dhttps%253A%252F%252Fwww\.ti\.com%252Flit%252Fgpn%252Ftpd2e2u06
- Role: ESD Protection
- LCSC Part Number: C1855726
- Functional Group: USB\-C Input

**Pins:**
- GND [pin 3]
- IO1 [pin 1]
- IO2 [pin 2]

### D4 — [SMF5\.0A](https://flux.ai/lcsc/smf5p0a~bz6b.md)

- Role Details: USB VBUS TVS before downstream charger circuitry
- Package or Case Code: SOD\-123FL\_L2\.8\-W1\.8\-LS3\.6\-RD
- JLCPCB Part Class: Extended Part
- Role: Input Protection
- Datasheet URL: https://www\.lcsc\.com/datasheet/C2990427\.pdf?spm=wm\.sxq\.inf\.ggs&lcsc\_vid=T1kIXgFeT1NaU1RXQFBbUlUHT1cKU1NXFVBeX1VSTlAxVlNRTlBbUVFXRldaXzsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D
- LCSC Part Number: C2990427
- Functional Group: USB\-C Input
- Diode Type: Schottky Diode
- Part Type: TVS
- Max Reverse Voltage: 5V
- Manufacturer Name: Liown\(里阳半导体\)
- Manufacturer Part Number: SMF5\.0A
- Forward Voltage: 0\.45V to 0\.55V \(at 1A\)V

**Pins:**
- 1 [pin 1]
- 2 [pin 2]

### F1 — [0603L050YR](https://flux.ai/adrian95/0603l050yr~cqy.md)

- Manufacturer Name: Littelfuse Inc\.
- Role: Input Protection
- Manufacturer Part Number: 0603L050YR
- Datasheet URL: https://www\.littelfuse\.com/assetdocs/resettable\-ptcs\-0603l\-datasheet?assetguid=879563f9\-97a7\-4e71\-adba\-37de085b333f
- Part Type: Fuse
- Role Details: 500 mA hold USB VBUS overcurrent protection
- License: https://creativecommons\.org/licenses/by/4\.0/
- Functional Group: USB\-C Input

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### J1 — [USB4105\-GF\-A](https://flux.ai/adrian95/usb4105-gf-a~im9.md)

- Part Type: USB C
- License: https://creativecommons\.org/licenses/by/4\.0/
- Symbol Style: parametric\-v1
- Functional Group: USB\-C Input
- Role Details: USB\-C 5 V sink; charging only; exposed board edge
- Manufacturer Name: GCT
- Manufacturer Name: GCT
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/user\-uploaded/c2c7fba82d64960d510c5688ccda39e92973a3ef64f0758ccd8dce8a07cbda76\.pdf
- Role: Power Input Connector
- Manufacturer Part Number: USB4105\-GF\-A

**Pins:**
- CC1 [pin A5]
- CC2 [pin B5]
- DN1 [pin A7]
- DN2 [pin B7]
- DP1 [pin A6]
- DP2 [pin B6]
- GND [pin A1\_B12]
- GND\_\_1 [pin B1\_A12]
- SBU1 [pin A8]
- SBU2 [pin B8]
- SHELL\_GND [pin SH1]
- SHELL\_GND\_\_1 [pin SH2]
- SHELL\_GND\_\_2 [pin SH3]
- SHELL\_GND\_\_3 [pin SH4]
- VBUS [pin A4\_B9]
- VBUS\_\_1 [pin B4\_A9]

### J2 — [S2B\-PH\-SM4\-TB\(LF\)\(SN\)](https://flux.ai/lcsc/s2b-ph-sm4-tblfsn~dy5m.md)

- Manufacturer Name: JST
- Functional Group: Battery Interface
- JLCPCB Part Class: Extended Part
- Connector Type: Wire\-to\-board connector
- Part Type: Wire To Board / Wire To Wire Connector
- Role Details: Protected 1\-cell LiPo, 500–650 mAh target
- Product Info Url: https://lcsc\.com/product\-detail/\_JST\-Sales\-America\_S2B\-PH\-SM4\-TB\-LF\-SN\_JST\-Sales\-America\-S2B\-PH\-SM4\-TB\-LF\-SN\_C295747\.html
- Package or Case Code: CONN\-SMD\_P2\.00\_S2B\-PH\-SM4\-TB\-LF\-SN
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2102031704\_JST\-S2B\-PH\-SM4\-TB\-LF\-SN\_C295747\.pdf
- Manufacturer Part Number: S2B\-PH\-SM4\-TB\(LF\)\(SN\)
- Connector Rows: 1
- Connector Gender: Female
- Role: Battery Connector
- LCSC Part Number: C295747
- Connector Positions: 2
- Connector Pitch: 2mm

**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]

### J3 — M8AS\-06PFFR\-SF8001

- Manufacturer Part Number: M8AS\-06PFFR\-SF8001
- Connector Positions: 6
- Mount: Through Hole
- Role Details: Six protected CapSense lines via Guided M8 IP68\-unmated panel/PCB receptacle
- Product Info Url: https://amphenolltw\.com/product\-info/MetricCircularConnector/M\-Series\.GuidedM8/M8AS\-06PFFR\-SF8001\.html
- Connector Type: Circular Connectors
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/user\-uploaded/0be4790a217b3aea6832004f668aaefcef031ea3b5c6cc3e8457528a0f579c06\.pdf
- Manufacturer Name: Amphenol LTW
- Part Type: Connectors
- Role: Textile Electrode Connector
- Functional Group: Textile Interface
- Connector Gender: Female

**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]

### TP1 — [TestPoint\_Pad\_1\.0x1\.0mm](https://flux.ai/adrian95/testpointpad10x10mm~77t.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Role Details: SWDIO pogo\-probe pad
- Role: Programming Test Point
- Functional Group: Programming and Debug
- Part Type: Connector

**Pins:**
- 1 [pin 1]

### TP2 — [TestPoint\_Pad\_1\.0x1\.0mm](https://flux.ai/adrian95/testpointpad10x10mm~77t.md)

- Role Details: SWCLK pogo\-probe pad
- License: https://creativecommons\.org/licenses/by/4\.0/
- Functional Group: Programming and Debug
- Part Type: Connector
- Role: Programming Test Point

**Pins:**
- 1 [pin 1]

### TP3 — [TestPoint\_Pad\_1\.0x1\.0mm](https://flux.ai/adrian95/testpointpad10x10mm~77t.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Role Details: XRES reset pogo\-probe pad
- Role: Programming Test Point
- Functional Group: Programming and Debug
- Part Type: Connector

**Pins:**
- 1 [pin 1]

### TP4 — [TestPoint\_Pad\_1\.0x1\.0mm](https://flux.ai/adrian95/testpointpad10x10mm~77t.md)

- Role: Programming and Power Test Point
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role Details: Shared regulated 3V3 pogo pad; no duplicate 3V3 test point
- Functional Group: Programming and Debug,Power Test Access
- Part Type: Connector

**Pins:**
- 1 [pin 1]

### TP5 — [TestPoint\_Pad\_1\.0x1\.0mm](https://flux.ai/adrian95/testpointpad10x10mm~77t.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Role Details: Shared GND pogo pad; no duplicate ground test point
- Role: Programming and Power Test Point
- Functional Group: Programming and Debug,Power Test Access
- Part Type: Connector

**Pins:**
- 1 [pin 1]

### TP6 — [TestPoint\_Pad\_1\.0x1\.0mm](https://flux.ai/adrian95/testpointpad10x10mm~77t.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Role Details: Protected USB VBUS / BQ24074 IN pogo pad
- Functional Group: USB\-C Input,Power Test Access
- Role: Power Test Point
- Part Type: Connector

**Pins:**
- 1 [pin 1]

### TP7 — [TestPoint\_Pad\_1\.0x1\.0mm](https://flux.ai/adrian95/testpointpad10x10mm~77t.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Role Details: BQ24074 OUT / system rail pogo pad
- Role: Power Test Point
- Functional Group: Battery Charger and Power Path,Power Test Access
- Part Type: Connector

**Pins:**
- 1 [pin 1]

### TP8 — [TestPoint\_Pad\_1\.0x1\.0mm](https://flux.ai/adrian95/testpointpad10x10mm~77t.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Role: Power Test Point
- Role Details: BAT rail pogo pad
- Part Type: Connector
- Functional Group: Battery Interface,Power Test Access

**Pins:**
- 1 [pin 1]

### U1 — [CYBLE\-416045\-02](https://flux.ai/adrian95/cyble-416045-02~tio.md)

- Functional Group: BLE and CapSense
- Manufacturer Name: Infineon Technologies
- Manufacturer Part Number: CYBLE\-416045\-02
- Role Details: Infineon PSoC 6 BLE module; six textile electrode channels; integrated antenna requires edge keepout
- Part Type: Module
- Datasheet URL: https://www\.infineon\.com/dgdl/Infineon\-CYBLE\-416045\-02\-DataSheet\-v02\_00\-EN\.pdf?fileId=8ac78c8c7d0d8da4017d0ee63f136e57&utm\_source=cypress&utm\_medium=referral&utm\_campaign=202110\_globe\_en\_all\_integration\-files&redirId=File\_4\_0\_1240
- Role: BLE CapSense Controller
- License: https://creativecommons\.org/licenses/by/4\.0/

**Pins:**
- GND [pin 1]
- GND [pin 15]
- GND [pin 43]
- P0\.0 [pin 5]
- P0\.1 [pin 6]
- P0\.4 [pin 41]
- P0\.5 [pin 2]
- P10\.0 [pin 13]
- P10\.1 [pin 12]
- P10\.2 [pin 33]
- P10\.3 [pin 7]
- P10\.4 [pin 8]
- P10\.5 [pin 11]
- P10\.6 [pin 10]
- P12\.6 [pin 34]
- P12\.7 [pin 35]
- P5\.0 [pin 39]
- P5\.1 [pin 40]
- P5\.2 [pin 38]
- P5\.3 [pin 37]
- P5\.4 [pin 25]
- P5\.5 [pin 36]
- P5\.6 [pin 32]
- P6\.2 [pin 28]
- P6\.3 [pin 30]
- P6\.4 [pin 24]
- P6\.5 [pin 29]
- P6\.6 [pin 27]
- P6\.7 [pin 26]
- P7\.1 [pin 23]
- P7\.2 [pin 22]
- P7\.7 [pin 31]
- P9\.0 [pin 17]
- P9\.1 [pin 18]
- P9\.2 [pin 21]
- P9\.3 [pin 9]
- P9\.4 [pin 14]
- P9\.5 [pin 19]
- P9\.6 [pin 20]
- VBACKUP [pin 3]
- VDD [pin 4]
- VREF [pin 16]
- XRES [pin 42]

### U2 — [TPD3E001DRLR](https://flux.ai/kicad-part-library/tpd3e001drlr~6l.md)

- Role Details: Low\-capacitance protection for six CapSense electrode lines
- Datasheet URL: http://www\.ti\.com/lit/ds/symlink/tpd3e001\.pdf
- Package or Case Code: SOT\-553
- Role: ESD Protection
- Manufacturer Name: Texas Instruments Inc\.
- Manufacturer Part Number: TPD3E001DRLR
- Functional Group: Textile Interface

**Pins:**
- \~ [pin 3]
- \~ [pin 5]
- IO1 [pin 1]
- IO2 [pin 2]
- IO3 [pin 4]

### U3 — [BQ24074RGTR](https://flux.ai/vasyl/bq24074rgtr~yke.md)

- Manufacturer Part Number: BQ24074RGTR
- License: https://creativecommons\.org/licenses/by/4\.0/
- Manufacturer Name: Texas Instruments
- Functional Group: Battery Charger and Power Path
- Datasheet URL: https://www\.ti\.com/general/docs/suppproductinfo\.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww\.ti\.com%2Flit%2Fgpn%2Fbq24074
- Part Type: Battery Chargers
- Role: Battery Charger
- Role Details: USB\-C 5 V input, approximately 250 mA charge current, power\-path system output

**Pins:**
- \~CE [pin 4]
- \~CHG [pin 9]
- \~PGOOD [pin 7]
- BAT\_2 [pin 2]
- BAT\_3 [pin 3]
- EN1 [pin 6]
- EN2 [pin 5]
- EXP [pin 17]
- ILIM [pin 12]
- IN [pin 13]
- ISET [pin 16]
- ITERM [pin 15]
- OUT\_10 [pin 10]
- OUT\_11 [pin 11]
- TMR [pin 14]
- TS [pin 1]
- VSS [pin 8]

### U4 — [TPS63031DSKR](https://flux.ai/adrian95/tps63031dskr~yd3.md)

- Manufacturer Name: Texas Instruments
- Functional Group: 3\.3 V Buck\-Boost
- License: https://creativecommons\.org/licenses/by/4\.0/
- Datasheet URL: https://www\.ti\.com/lit/ds/symlink/tps63030\.pdf
- Manufacturer Part Number: TPS63031DSKR
- Role: Buck\-Boost Regulator
- Role Details: Fixed 3\.3 V rail for CYBLE module and CapSense frontend
- Part Type: Integrated Circuit

**Pins:**
- EN [pin 6]
- EP [pin 11]
- FB [pin 10]
- GND [pin 9]
- L1 [pin 4]
- L2 [pin 2]
- PGND [pin 3]
- PS/SYNC [pin 7]
- VIN [pin 5]
- VINA [pin 8]
- VOUT [pin 1]

*The full schematic, PCB layout, bill of materials, and interactive design are available at [https://flux\.ai/3m4n73l/washable\-quilt\-sensor\-pod\~xj](https://flux.ai/3m4n73l/washable-quilt-sensor-pod~xj).*

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*Generated from [https://flux\.ai/3m4n73l/washable\-quilt\-sensor\-pod\~xj](https://flux.ai/3m4n73l/washable-quilt-sensor-pod~xj)*