# ESPRSSO32 Smart Scale AI Auto Layout [Example] ## Description Learn how to use AI Auto Layout on this ESP32 Espresso Smart Scale! In one click you’ll see AI Auto Layout perform magic. Pay close attention to how we recommend creating rulesets, zones, and fanouts. By copying the setup in this example on your own project, you’ll have a fully routed board in no time! ## Project Details - **Owner:** lesotho - **Created:** 8/1/2025 - **Last Updated:** 8/1/2025 - **Visibility:** Public ## Key Components ### H5 — [22052051](https://www.flux.ai/lcsc/22052051~la4y.md) - Manufacturer Part Number: 22052051 - Datasheet URL: https://assets.lcsc.com/datasheet/szlcsc/Download-ISO9001-Certification.pdf - Manufacturer Name: MOLEX - LCSC Part Number: C586988 - Product Info Url: https://lcsc.com/product-detail/Pre-ordered-Products_MOLEX_22052051_MOLEX-22052051_C586988.html - Part Type: Pin Headers - Package or Case Code: HDR-TH_5P-P2.54H-M-W9.5 - JLCPCB Part Class: Extended Part **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] ### IC1 — [ESP32-C3FH4 (no gnd vias)](https://www.flux.ai/ryanf/esp32-c3fh4-no-gnd-vias~lqh.md) - Part Type: Integrated Circuit - Manufacturer Part Number: ESP32-C3 - Manufacturer Name: Espressif Systems - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2312201733_Espressif-Systems-ESP32-C3_C2838500.pdf **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 - Part Type: Connector - Manufacturer Part Number: MSD-4-A - Datasheet URL: https://www.cuidevices.com/product/resource/msd-4-a.pdf - Manufacturer Name: CUI Devices **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://www.flux.ai/jecstronic/694101308002~8fo.md) - Datasheet URL: https://www.we-online.com/katalog/datasheet/694101308002.pdf - Part Type: Connector - Manufacturer Name: Würth Elektronik - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### J3 — [0532610471](https://www.flux.ai/vasyl/0532610471~vm.md) - Manufacturer Name: Molex - Datasheet URL: https://www.molex.com/pdm_docs/sd/532610471_sd.pdf - Manufacturer Part Number: 0532610471 - Part Type: Connector **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://www.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://www.flux.ai/adrian95/pin-header-01x03-254mm-vertical~cp4.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] ### K1 — [JW2SN-DC5V](https://www.flux.ai/adrian95/jw2sn-dc5v~h3a.md) - Part Type: Relay - Manufacturer Part Number: JW2SN-DC5V - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www3.panasonic.biz/ac/e_download/control/relay/power/catalog/mech_eng_jw.pdf - Manufacturer Name: Panasonic Electric Works **Pins:** - COIL_1 [pin 1] - COIL_2 [pin 8] - COM_1 [pin 3] - COM_2 [pin 6] - N.C._1 [pin 2] - N.C._2 [pin 7] - N.O._1 [pin 4] - N.O._2 [pin 5] ### MCU_BOOT — 1.5 mm Test Pad - Manufacturer Part Number: R0707 - Manufacturer Name: Foootprint Fitz Industries **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] ### S1 — [Small SPST-NO Tactile Switch](https://www.flux.ai/corynrobinson/small-spst-no-tactile-switch~vq.md) - Part Type: Switch - Manufacturer Name: C&K Components - Manufacturer Part Number: KMR421NGLFS - Datasheet URL: https://octopart.com/datasheet/kmr421nglfs-c%26k+components-7226706 **Pins:** - P1 [pin 1] - P2 [pin 2] - P3 [pin 3] - P4 [pin 4] ### SW1 — [PV1F240SS](https://www.flux.ai/vasyl/pv1f240ss~znb.md) - Manufacturer Part Number: E-Switch - Manufacturer Name: PV1F240SS - Part Type: Switch - Datasheet URL: https://sten-eswitch-13110800-production.s3.amazonaws.com/system/asset/product_line/data_sheet/1/PV1.pdf - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - P1 [pin 1] - P2 [pin 3] ### U1 — [NAU7802SGI](https://www.flux.ai/ryanf/nau7802sgi~7y.md) - 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 - Part Type: Integrated Circuit - Manufacturer Part Number: NAU7802SGI **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://www.flux.ai/ryanf/ncp176bmx330tcg~l72.md) - Manufacturer Part Number: NCP176BMX330TCG - Package or Case Code: XDFN6 - Manufacturer Name: onsemi - Datasheet URL: https://www.mouser.com/datasheet/2/308/1/NCP176_D-2316728.pdf - 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://www.flux.ai/ryanf/tps62130argtr~8k9.md) - Manufacturer Part Number: TPS62130ARGTR - Package or Case Code: QFN50P300X300X50-17N - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Switching Regulator - Manufacturer Name: Texas Instruments - Datasheet URL: https://www.ti.com/lit/ds/symlink/tps62130a.pdf?ts=1716649051225&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FTPS62130A **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] ### U4 — [ESP32-DevKitC](https://www.flux.ai/lcsc/esp32-devkitc~i1ye.md) - JLCPCB Part Class: Extended Part - Manufacturer Name: ESPRESSIF(乐鑫) - Package or Case Code: BULETM-SMD_ESP32-DEVKITC - Part Type: Development Boards & Kits - Manufacturer Part Number: ESP32-DevKitC - LCSC Part Number: C571180 **Pins:** - 3V3 [pin 1] - 5V [pin 19] - CLK [pin 38] - CMD [pin 18] - D0 [pin 37] - D1 [pin 36] - D2 [pin 16] - D3 [pin 17] - EN [pin 2] - GND [pin 20] - GND [pin 14] - GND [pin 26] - IO0 [pin 33] - IO12 [pin 13] - IO13 [pin 15] - IO14 [pin 12] - IO15 [pin 35] - IO16 [pin 31] - IO17 [pin 30] - IO18 [pin 28] - IO19 [pin 27] - IO2 [pin 34] - IO21 [pin 25] - IO22 [pin 22] - IO23 [pin 21] - IO25 [pin 9] - IO26 [pin 10] - IO27 [pin 11] - IO32 [pin 7] - IO33 [pin 8] - IO34 [pin 5] - IO35 [pin 6] - IO4 [pin 32] - IO5 [pin 29] - RX [pin 24] - TX [pin 23] - VN [pin 4] - VP [pin 3] ### U5 — [BG95M3LA64-SGNS](https://www.flux.ai/jecstronic/bg95m3la64-sgns~u77.md) - Manufacturer Name: Quectel - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Module - Manufacturer Part Number: BG95M3LA-64-SGNS - Datasheet URL: https://www.quectel.com/wp-content/uploads/pdfupload/Quectel_BG95_Series_LPWA_Specification_V1.5.pdf **Pins:** - ~RESET [pin 17] - ADC0 [pin 24] - ADC1 [pin 2] - ANT_GNSS [pin 49] - ANT_MAIN [pin 60] - AP_READY [pin 19] - DBG_RXD [pin 22] - DBG_TXD [pin 23] - GND [pin 89] - GND [pin 82] - GND [pin 81] - GND [pin 80] - GND [pin 48] - GND [pin 73] - GND [pin 3] - GND [pin 54] - GND [pin 72] - GND [pin 31] - GND [pin 79] - GND [pin 101] - GND [pin 58] - GND [pin 55] - GND [pin 68] - GND [pin 91] - GND [pin 50] - GND [pin 67] - GND [pin 71] - GND [pin 59] - GND [pin 69] - GND [pin 90] - GND [pin 62] - GND [pin 74] - GND [pin 100] - GND [pin 61] - GND [pin 102] - GND [pin 70] - GNSS_RXD [pin 28] - GNSS_TXD [pin 27] - GPIO1 [pin 25] - GPIO2 [pin 26] - GPIO3 [pin 64] - GPIO4 [pin 65] - GPIO5 [pin 66] - GPIO6 [pin 85] - GPIO7 [pin 86] - GPIO8 [pin 87] - GPIO9 [pin 88] - GRFC1 [pin 83] - GRFC2 [pin 84] - I2C_SCL [pin 40] - I2C_SDA [pin 41] - MAIN_CTS [pin 36] - MAIN_DCD [pin 38] - MAIN_DTR [pin 30] - MAIN_RI [pin 39] - MAIN_RTS [pin 37] - MAIN_RXD [pin 34] - MAIN_TXD [pin 35] - NET_STATUS [pin 21] - PCM_CLK [pin 4] - PCM_DIN [pin 6] - PCM_DOUT [pin 7] - PCM_SYNC [pin 5] - PON_TRIG [pin 96] - PSM_IND [pin 1] - PWRKEY [pin 15] - RESERVED [pin 56] - RESERVED [pin 12] - RESERVED [pin 63] - RESERVED [pin 76] - RESERVED [pin 57] - RESERVED [pin 51] - RESERVED [pin 99] - RESERVED [pin 93] - RESERVED [pin 94] - RESERVED [pin 92] - RESERVED [pin 98] - RESERVED [pin 14] - RESERVED [pin 13] - RESERVED [pin 11] - RESERVED [pin 16] - RESERVED [pin 78] - RESERVED [pin 95] - RESERVED [pin 77] - RESERVED [pin 97] - STATUS [pin 20] - USB_BOOT [pin 75] - USB_DM [pin 10] - USB_DP [pin 9] - USB_VBUS [pin 8] - USIM_CLK [pin 46] - USIM_DATA [pin 45] - USIM_DET [pin 42] - USIM_GND [pin 47] - USIM_RST [pin 44] - USIM_VDD [pin 43] - VBAT_BB [pin 32] - VBAT_BB [pin 33] - VBAT_RF [pin 53] - VBAT_RF [pin 52] - VDD_EXT [pin 29] - W_DISABLE# [pin 18] ### U6 — [4682](https://www.flux.ai/jecstronic/4682~7ep.md) - Manufacturer Part Number: 4682 - Part Type: Module - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://cdn-learn.adafruit.com/downloads/pdf/adafruit-microsd-spi-sdio.pdf - Manufacturer Name: Adafruit Industries LLC **Pins:** - 3V [pin 1] - CLK [pin 3] - CMD/SI [pin 5] - D1 [pin 7] - D3/CS [pin 6] - DAT2 [pin 8] - DET [pin 9] - DO/SO [pin 4] - GND [pin 2] ### Y1 — RH100-40.000-18-F-2030-EXT-TR-NS1 - Part Type: Oscillator - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/6146/RH100-40.000-18-F-2030-EXT-TR-NS1.pdf - Frequency: 40MHz - Manufacturer Part Number: RH100-40.000-18-F-2030-EXT-TR-NS1 - Manufacturer Name: Raltron Electronics **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### Y2 — [2450AT18B100E](https://www.flux.ai/jecstronic/2450at18b100e~oki.md) - Part Type: Antenna - Manufacturer Part Number: 2450AT18B100E - Manufacturer Name: Johanson Technology - Datasheet URL: https://www.snapeda.com/parts/2450AT18B100E/Johanson%20Technology/datasheet/ - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 2 [pin 2] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/lesotho/esprsso32-smart-scale-ai-auto-layout-example~xc](https://www.flux.ai/lesotho/esprsso32-smart-scale-ai-auto-layout-example~xc).* --- *Generated from [https://www.flux.ai/lesotho/esprsso32-smart-scale-ai-auto-layout-example~xc](https://www.flux.ai/lesotho/esprsso32-smart-scale-ai-auto-layout-example~xc)*