# Smart Humidity Sensor SHT31 ## Project Details - **Owner:** ryanf - **Created:** 7/11/2025 - **Last Updated:** 7/15/2025 - **Visibility:** Public - **Copies:** 1 ## Key Components ### — [M2 Mounting Hole](https://www.flux.ai/vasyl/m2-mounting-hole.md) **Pins:** - ~ ### — [M2 Mounting Hole](https://www.flux.ai/vasyl/m2-mounting-hole.md) **Pins:** - ~ ### — [M2 Mounting Hole](https://www.flux.ai/vasyl/m2-mounting-hole.md) **Pins:** - ~ ### IC1 — [TPS62132RGTT](https://www.flux.ai/vasyl/tps62132rgtt.md) - Part Type: Integrated Circuit - Manufacturer Name: Texas Instruments - Manufacturer Part Number: TPS62132RGTT - Role: Power Conversion - Datasheet URL: https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Ftps62132 **Pins:** - AGND [pin 6] - AVIN [pin 10] - DEF [pin 8] - EN [pin 13] - EP [pin 17] - FB [pin 5] - FSW [pin 7] - PG [pin 4] - PGND [pin 15] - PGND [pin 16] - PVIN [pin 12] - PVIN [pin 11] - SS/TR [pin 9] - SW [pin 1] - SW [pin 3] - SW [pin 2] - VOS [pin 14] ### J1 — MSD-4-A - Part Type: Connector - Manufacturer Name: CUI Devices - Datasheet URL: https://www.cuidevices.com/product/resource/msd-4-a.pdf - Manufacturer Part Number: MSD-4-A **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 — [USB-C Receptacle USB2.0](https://www.flux.ai/jharwinbarrozo/usb-c-receptacle-usb20.md) - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Amphenol%20PDFs/12401548E4%232A%20Drawing.pdf - Manufacturer Part Number: 12401548E4#2A - Manufacturer Name: Amphenol **Pins:** - CC1 [pin A5] - CC2 [pin B5] - D- [pin A7] - D- [pin B7] - D+ [pin B6] - D+ [pin A6] - GND [pin A1] - GND [pin B12] - GND [pin A12] - SBU1 [pin A8] - SBU2 [pin B8] - SHIELD [pin SH1] - VBUS [pin A4] - VBUS [pin B4] ### U1 — [ESP32-S3-WROOM-1-N8R8](https://www.flux.ai/adrian95/esp32-s3-wroom-1-n8r8.md) - Manufacturer Name: Espressif Systems - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Module - Manufacturer Part Number: ESP32-S3-WROOM-1-N8R8 - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32-s3-wroom-1_wroom-1u_datasheet_en.pdf **Pins:** - 3V3 [pin 2] - EN [pin 3] - GND [pin 41_3] - GND [pin 41_7] - GND [pin 41_4] - GND [pin 1] - GND [pin 40] - GND [pin 41_8] - GND [pin 41_9] - GND [pin 41_2] - GND [pin 41_1] - GND [pin 41_6] - GND [pin 41_5] - IO0 [pin 27] - IO1 [pin 39] - IO10 [pin 18] - IO11 [pin 19] - IO12 [pin 20] - IO13 [pin 21] - IO14 [pin 22] - IO15 [pin 8] - IO16 [pin 9] - IO17 [pin 10] - IO18 [pin 11] - IO19 [pin 13] - IO2 [pin 38] - IO20 [pin 14] - IO21 [pin 23] - IO3 [pin 15] - IO35 [pin 28] - IO36 [pin 29] - IO37 [pin 30] - IO38 [pin 31] - IO39 [pin 32] - IO4 [pin 4] - IO40 [pin 33] - IO41 [pin 34] - IO42 [pin 35] - IO45 [pin 26] - IO46 [pin 16] - IO47 [pin 24] - IO48 [pin 25] - IO5 [pin 5] - IO6 [pin 6] - IO7 [pin 7] - IO8 [pin 12] - IO9 [pin 17] - RXD0 [pin 36] - TXD0 [pin 37] ### U2 — [SHT31-DIS-B2.5KS](https://www.flux.ai/vasy_skral/sht31-dis-b25ks.md) - Manufacturer Name: Sensirion AG - Part Type: Integrated Circuit - Manufacturer Part Number: SHT31-DIS-B2.5KS - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Sensirion%20PDFs/HT_DS_SHT3x_DIS.pdf **Pins:** - ~RESET [pin 6] - ADDR [pin 2] - ALERT [pin 3] - R [pin 7] - SCL [pin 4] - SDA [pin 1] - VDD [pin 5] - VSS [pin 9] - VSS [pin 8] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/ryanf/smart-humidity-sensor-sht31](https://www.flux.ai/ryanf/smart-humidity-sensor-sht31).* --- *Generated from [https://www.flux.ai/ryanf/smart-humidity-sensor-sht31](https://www.flux.ai/ryanf/smart-humidity-sensor-sht31)*