# ESPRSSO32 Smart Scale AI Auto Layout \[Example\]

## Project Details

- **Owner:** arunbalaji
- **Created:** 6/25/2025
- **Last Updated:** 6/25/2025
- **Visibility:** Public

## Key Components

### IC1 — [ESP32\-C3FH4 \(no gnd vias\)](https://flux.ai/ryanf/esp32-c3fh4-no-gnd-vias~lqh.md)

- Manufacturer Part Number: ESP32\-C3
- Part Type: Integrated Circuit
- Datasheet URL: https://www\.lcsc\.com/datasheet/lcsc\_datasheet\_2312201733\_Espressif\-Systems\-ESP32\-C3\_C2838500\.pdf
- Manufacturer Name: Espressif Systems

**Pins:**
- CHIP\_EN [pin 7]
- GND [pin 33]
- GPIO10 [pin 16]
- GPIO18 [pin 25]
- GPIO19 [pin 26]
- GPIO2 [pin 6]
- GPIO3 [pin 8]
- GPIO8 [pin 14]
- GPIO9 [pin 15]
- LNA\_IN [pin 1]
- MTCK [pin 12]
- MTDI [pin 10]
- MTDO [pin 13]
- MTMS [pin 9]
- SPICLK [pin 22]
- SPICS0 [pin 21]
- SPID [pin 23]
- SPIHD [pin 19]
- SPIQ [pin 24]
- SPIWP [pin 20]
- U0RXD [pin 27]
- U0TXD [pin 28]
- VDD\_SPI [pin 18]
- VDD3P3 [pin 2]
- VDD3P3\_\_1 [pin 3]
- VDD3P3\_CPU [pin 17]
- VDD3P3\_RTC [pin 11]
- VDDA [pin 31]
- VDDA\_\_1 [pin 32]
- XTAL\_32K\_N [pin 5]
- XTAL\_32K\_P [pin 4]
- XTAL\_N [pin 29]
- XTAL\_P [pin 30]

### J1 — MSD\-4\-A

- Manufacturer Part Number: MSD\-4\-A
- Manufacturer Name:  CUI Devices
- Part Type: Connector
- Datasheet URL: https://www\.cuidevices\.com/product/resource/msd\-4\-a\.pdf

**Pins:**
- CD [pin CD1]
- CD/DAT3 [pin 2]
- CLX [pin 5]
- CMD [pin 3]
- DAT0 [pin 7]
- DAT1 [pin 8]
- DAT2 [pin 1]
- G1 [pin G1]
- G2 [pin G2]
- G3 [pin G3]
- G4 [pin G4]
- VDD [pin 4]
- VSS [pin 6]

### J2 — [694101308002](https://flux.ai/jecstronic/694101308002~8fo.md)

- Part Type: Connector
- License: https://creativecommons\.org/licenses/by/4\.0/
- Manufacturer Name: Würth Elektronik
- Datasheet URL: https://www\.we\-online\.com/katalog/datasheet/694101308002\.pdf

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

### J3 — [0532610471](https://flux.ai/vasyl/0532610471~vm.md)

- Part Type: Connector
- Manufacturer Name: Molex
- Datasheet URL: https://www\.molex\.com/pdm\_docs/sd/532610471\_sd\.pdf
- Manufacturer Part Number: 0532610471

**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- SHIELD [pin S1]
- SHIELD\_\_1 [pin S2]

### J4 — [Pin Header 01x03 2\.54mm Vertical](https://flux.ai/adrian95/pin-header-01x03-254mm-vertical~cp4.md)

- Part Type: Connector
- License: https://creativecommons\.org/licenses/by/4\.0/

**Pins:**
- Pin\_1 [pin 1]
- Pin\_2 [pin 2]
- Pin\_3 [pin 3]

### J5 — [Pin Header 01x03 2\.54mm Vertical](https://flux.ai/adrian95/pin-header-01x03-254mm-vertical~cp4.md)

- Part Type: Connector
- License: https://creativecommons\.org/licenses/by/4\.0/

**Pins:**
- Pin\_1 [pin 1]
- Pin\_2 [pin 2]
- Pin\_3 [pin 3]

### MCU\_BOOT — 1\.5 mm Test Pad

- Manufacturer Name: Foootprint Fitz Industries
- Manufacturer Part Number: R0707

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

### MCU\_RXD — 1\.5 mm Test Pad

- Manufacturer Name: Foootprint Fitz Industries
- Manufacturer Part Number: R0707

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

### MCU\_TXD — 1\.5 mm Test Pad

- Manufacturer Name: Foootprint Fitz Industries
- Manufacturer Part Number: R0707

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

### U1 — [NAU7802SGI](https://flux.ai/ryanf/nau7802sgi~7y.md)

- Manufacturer Part Number: NAU7802SGI
- Part Type: Integrated Circuit
- Datasheet URL: https://www\.nuvoton\.com/export/resource\-files/NAU7802%20Data%20Sheet%20V1\.7\.pdf
- License: https://creativecommons\.org/licenses/by/4\.0/
- Manufacturer Name: Nuvoton Technology Corporation

**Pins:**
- AVDD/LDO [pin 16]
- AVSS [pin 8]
- DRDY [pin 12]
- DVDD [pin 15]
- DVSS [pin 9]
- R\-EFN [pin 7]
- R\-EFP [pin 1]
- SCLK [pin 13]
- SDIO [pin 14]
- VBG [pin 6]
- VIN1N [pin 2]
- VIN1P [pin 3]
- VIN2N [pin 4]
- VIN2P [pin 5]
- XIN [pin 10]
- XOUT [pin 11]

### U2 — [NCP176BMX330TCG](https://flux.ai/ryanf/ncp176bmx330tcg~l72.md)

- Datasheet URL: https://www\.mouser\.com/datasheet/2/308/1/NCP176\_D\-2316728\.pdf
- Manufacturer Name: onsemi
- Manufacturer Part Number: NCP176BMX330TCG
- Package or Case Code: XDFN6
- Part Type: Linear Voltage Regulator

**Pins:**
- EN [pin 4]
- FB [pin 2]
- GND [pin 3]
- IN [pin 6]
- N/C [pin 5]
- OUT [pin 1]

### U3 — [TPS62130ARGTR](https://flux.ai/ryanf/tps62130argtr~8k9.md)

- Package or Case Code: QFN50P300X300X50\-17N
- Datasheet URL: https://www\.ti\.com/lit/ds/symlink/tps62130a\.pdf?ts=1716649051225&ref\_url=https%253A%252F%252Fwww\.ti\.com%252Fproduct%252FTPS62130A
- Part Type: Switching Regulator
- Manufacturer Part Number: TPS62130ARGTR
- Manufacturer Name: Texas Instruments
- License: https://creativecommons\.org/licenses/by/4\.0/

**Pins:**
- AGND [pin 6]
- AGND [pin 17]
- AVIN [pin 10]
- DEF [pin 8]
- EN [pin 13]
- FB [pin 5]
- FSW [pin 7]
- PG [pin 4]
- PGND [pin 16]
- PGND [pin 15]
- PVIN [pin 12]
- PVIN [pin 11]
- SS/TR [pin 9]
- SW [pin 2]
- SW [pin 3]
- SW [pin 1]
- VOS [pin 14]

### Y1 — RH100\-40\.000\-18\-F\-2030\-EXT\-TR\-NS1

- Frequency: 40MHz
- Part Type: Oscillator
- Manufacturer Part Number: RH100\-40\.000\-18\-F\-2030\-EXT\-TR\-NS1
- Datasheet URL: https://mm\.digikey\.com/Volume0/opasdata/d220001/medias/docus/6146/RH100\-40\.000\-18\-F\-2030\-EXT\-TR\-NS1\.pdf
- Manufacturer Name: Raltron Electronics

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

### Y2 — [2450AT18B100E](https://flux.ai/jecstronic/2450at18b100e~oki.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Part Type: Antenna
- Manufacturer Name: Johanson Technology
- Manufacturer Part Number: 2450AT18B100E
- Datasheet URL: https://www\.snapeda\.com/parts/2450AT18B100E/Johanson%20Technology/datasheet/

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

*The full schematic, PCB layout, bill of materials, and interactive design are available at [https://flux\.ai/arunbalaji/esprsso32\-smart\-scale\-ai\-auto\-layout\-example\~am](https://flux.ai/arunbalaji/esprsso32-smart-scale-ai-auto-layout-example~am).*

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*Generated from [https://flux\.ai/arunbalaji/esprsso32\-smart\-scale\-ai\-auto\-layout\-example\~am](https://flux.ai/arunbalaji/esprsso32-smart-scale-ai-auto-layout-example~am)*