# 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:** marcusgrtz - **Created:** 6/30/2025 - **Last Updated:** 6/30/2025 - **Visibility:** Public ## Key Components ### IC1 — ESP32-C3FH4 (no gnd vias) - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2312201733_Espressif-Systems-ESP32-C3_C2838500.pdf - Part Type: Integrated Circuit - Manufacturer Part Number: ESP32-C3 - 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 Name: CUI Devices - Datasheet URL: https://www.cuidevices.com/product/resource/msd-4-a.pdf - Manufacturer Part Number: MSD-4-A - Part Type: Connector **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) - Part Type: Connector - Manufacturer Name: Würth Elektronik - Datasheet URL: https://www.we-online.com/katalog/datasheet/694101308002.pdf - 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) - Part Type: Connector - Datasheet URL: https://www.molex.com/pdm_docs/sd/532610471_sd.pdf - Manufacturer Part Number: 0532610471 - Manufacturer Name: Molex **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) - 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 Part Number: R0707 - Manufacturer Name: Foootprint Fitz Industries **Pins:** - TP [pin 1] ### U1 — [NAU7802SGI](https://www.flux.ai/ryanf/nau7802sgi~7y.md) - Manufacturer Name: Nuvoton Technology Corporation - Datasheet URL: https://www.nuvoton.com/export/resource-files/NAU7802%20Data%20Sheet%20V1.7.pdf - Manufacturer Part Number: NAU7802SGI - Part Type: Integrated Circuit - License: https://creativecommons.org/licenses/by/4.0/ **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 - Datasheet URL: https://www.mouser.com/datasheet/2/308/1/NCP176_D-2316728.pdf - Manufacturer Name: onsemi - 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://www.flux.ai/ryanf/tps62130argtr~8k9.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Texas Instruments - Part Type: Switching Regulator - Datasheet URL: https://www.ti.com/lit/ds/symlink/tps62130a.pdf?ts=1716649051225&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FTPS62130A - Manufacturer Part Number: TPS62130ARGTR - Package or Case Code: QFN50P300X300X50-17N **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 — [STM32H753ZIT6](https://www.flux.ai/vasy_skral/stm32h753zit6~6t5.md) - Manufacturer Name: STMicroelectronics - Manufacturer Part Number: STM32H753ZIT6 - Part Type: Microcontroller - Datasheet URL: https://www.st.com/content/ccc/resource/technical/document/datasheet/group3/01/21/00/39/12/c9/4c/f1/DM00388325/files/DM00388325.pdf/jcr:content/translations/en.DM00388325.pdf **Pins:** - BOOT0 [pin 138] - NRST [pin 25] - PA0 [pin 34] - PA1 [pin 35] - PA10 [pin 102] - PA11 [pin 103] - PA12 [pin 104] - PA13 [pin 105] - PA14 [pin 109] - PA15 [pin 110] - PA2 [pin 36] - PA3 [pin 37] - PA4 [pin 40] - PA5 [pin 41] - PA6 [pin 42] - PA7 [pin 43] - PA8 [pin 100] - PA9 [pin 101] - PB0 [pin 46] - PB1 [pin 47] - PB10 [pin 69] - PB11 [pin 70] - PB12 [pin 73] - PB13 [pin 74] - PB14 [pin 75] - PB15 [pin 76] - PB2 [pin 48] - PB3 [pin 133] - PB4 [pin 134] - PB5 [pin 135] - PB6 [pin 136] - PB7 [pin 137] - PB8 [pin 139] - PB9 [pin 140] - PC0 [pin 26] - PC1 [pin 27] - PC10 [pin 111] - PC11 [pin 112] - PC12 [pin 113] - PC13 [pin 7] - PC14 [pin 8] - PC15 [pin 9] - PC2_C [pin 28] - PC3_C [pin 29] - PC4 [pin 44] - PC5 [pin 45] - PC6 [pin 96] - PC7 [pin 97] - PC8 [pin 98] - PC9 [pin 99] - PD0 [pin 114] - PD1 [pin 115] - PD10 [pin 79] - PD11 [pin 80] - PD12 [pin 81] - PD13 [pin 82] - PD14 [pin 85] - PD15 [pin 86] - PD2 [pin 116] - PD3 [pin 117] - PD4 [pin 118] - PD5 [pin 119] - PD6 [pin 122] - PD7 [pin 123] - PD8 [pin 77] - PD9 [pin 78] - PDR_ON [pin 143] - PE0 [pin 141] - PE1 [pin 142] - PE10 [pin 63] - PE11 [pin 64] - PE12 [pin 65] - PE13 [pin 66] - PE14 [pin 67] - PE15 [pin 68] - PE2 [pin 1] - PE3 [pin 2] - PE4 [pin 3] - PE5 [pin 4] - PE6 [pin 5] - PE7 [pin 58] - PE8 [pin 59] - PE9 [pin 60] - PF0 [pin 10] - PF1 [pin 11] - PF10 [pin 22] - PF11 [pin 49] - PF12 [pin 50] - PF13 [pin 53] - PF14 [pin 54] - PF15 [pin 55] - PF2 [pin 12] - PF3 [pin 13] - PF4 [pin 14] - PF5 [pin 15] - PF6 [pin 18] - PF7 [pin 19] - PF8 [pin 20] - PF9 [pin 21] - PG0 [pin 56] - PG1 [pin 57] - PG10 [pin 125] - PG11 [pin 126] - PG12 [pin 127] - PG13 [pin 128] - PG14 [pin 129] - PG15 [pin 132] - PG2 [pin 87] - PG3 [pin 88] - PG4 [pin 89] - PG5 [pin 90] - PG6 [pin 91] - PG7 [pin 92] - PG8 [pin 93] - PG9 [pin 124] - PH0 [pin 23] - PH1 [pin 24] - VBAT [pin 6] - VCAP1 [pin 71] - VCAP2 [pin 106] - VDD [pin 30] - VDD [pin 84] - VDD [pin 52] - VDD [pin 62] - VDD [pin 108] - VDD [pin 72] - VDD [pin 144] - VDD [pin 39] - VDD [pin 131] - VDD [pin 121] - VDD [pin 17] - VDD33_USB [pin 95] - VDDA [pin 33] - VREF+ [pin 32] - VSS [pin 38] - VSS [pin 51] - VSS [pin 94] - VSS [pin 61] - VSS [pin 130] - VSS [pin 120] - VSS [pin 83] - VSS [pin 16] - VSS [pin 107] - VSSA [pin 31] ### Y1 — 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 Part Number: RH100-40.000-18-F-2030-EXT-TR-NS1 - Part Type: Oscillator - Manufacturer Name: Raltron Electronics - Frequency: 40MHz **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### Y2 — [2450AT18B100E](https://www.flux.ai/jecstronic/2450at18b100e~oki.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Antenna - Manufacturer Name: Johanson Technology - Datasheet URL: https://www.snapeda.com/parts/2450AT18B100E/Johanson%20Technology/datasheet/ - Manufacturer Part Number: 2450AT18B100E **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/marcusgrtz/esprsso32-smart-scale-ai-auto-layout-example~m8](https://www.flux.ai/marcusgrtz/esprsso32-smart-scale-ai-auto-layout-example~m8).* --- *Generated from [https://www.flux.ai/marcusgrtz/esprsso32-smart-scale-ai-auto-layout-example~m8](https://www.flux.ai/marcusgrtz/esprsso32-smart-scale-ai-auto-layout-example~m8)*