# Horizontal Pink Electronic Thumb ## Description nRF52840 Bluetooth 5.0 Sensor Node with Robust Power and Enhanced RF Performance ## Project Details - **Owner:** sbkim - **Created:** 10/12/2025 - **Last Updated:** 10/15/2025 - **Visibility:** Public - **Net Classification: SDA:** Digital - **Net Classification: XOUT:** Analog - **Net Classification: SWDCLK:** Digital - **Net Classification: GND:** Power - **Net Classification: 3V3:** Power - **Connectivity:** WiFi, Bluetooth, USB - **Compliance:** RoHS - **Operating Voltage:** 3.3V - **Role:** Environmental Sensing Node - **System Architecture:** ```mermaid flowchart TB USBC[USB-C Power Input] TVS[VBUS ESD Protector] VPS[TPS25210 Power-Path Controller] REG[TPS62740 Buck Regulator] MCU[(nRF52840 BLE MCU)] IMU[(LSM6DSO32TR 6-axis IMU)] SWD[Tag-Connect SWD Header] LED[Status LED] BTN[Push Button] XTAL[32MHz Crystal] MATCH[RF π-Match Network] ANT[2.4GHz Antenna] UFL[U.FL Test Port] USBC --> TVS --> VPS --> REG --> MCU MCU --> SWD MCU -->|SPI| IMU IMU -->|INT1/INT2| MCU MCU --> LED MCU --> BTN MCU --> XTAL MCU --> MATCH --> ANT MATCH --> UFL ANT -.-> FENCE[(RF Via-Stitch Fence)] ``` - **Net Classification: USB_DP:** Digital - **Domain:** Consumer Electronics - **Net Classification: USB_DM:** Digital - **Net Classification: XIN:** Analog - **Net Classification: SWDIO:** Digital - **Power Requirements:** USB - **Net Classification: VBUS:** Power - **Net Classification: SCL:** Digital - **Stars:** 1 ## Key Components ### Cx — [Generic Capacitor](https://www.flux.ai/jharwinbarrozo/generic-capacitor~1d.md) - Package: SMD_0603_1608Metric - Role: Decoupling - Role Details: Decoupling for MCU U1 VCC, IMU U2 VDD, Buck REG U3 VIN pins - Part Type: Non-Polarized Capacitor **Pins:** - P1 [pin 1] - P2 [pin 2] ### Cx — [Generic Capacitor](https://www.flux.ai/jharwinbarrozo/generic-capacitor~1d.md) - Role Details: Decoupling for MCU U1 VCC, IMU U2 VDD, Buck REG U3 VIN pins - Part Type: Non-Polarized Capacitor - Package: SMD_0603_1608Metric - Role: Decoupling **Pins:** - P1 [pin 1] - P2 [pin 2] ### Cx — [Generic Capacitor](https://www.flux.ai/jharwinbarrozo/generic-capacitor~1d.md) - Role Details: Decoupling for MCU U1 VCC, IMU U2 VDD, Buck REG U3 VIN pins - Package: SMD_0603_1608Metric - Role: Decoupling - Part Type: Non-Polarized Capacitor **Pins:** - P1 [pin 1] - P2 [pin 2] ### D1 — [USBLC6-2SC6Y](https://www.flux.ai/adrian95/usblc6-2sc6y~2s7.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: STMicroelectronics - Role Details: VBUS ESD protection diode - Manufacturer Part Number: USBLC6-2SC6Y - Part Type: Protection - Role: Protection - Datasheet URL: https://www.st.com/content/ccc/resource/technical/document/datasheet/group0/94/15/6c/58/ba/91/46/42/DM00055262/files/DM00055262.pdf/jcr:content/translations/en.DM00055262.pdf **Pins:** - GND [pin 2] - I/O1 [pin 6] - I/O1 [pin 1] - I/O2 [pin 3] - I/O2 [pin 4] - VBUS [pin 5] ### J1 — [2024100002](https://www.flux.ai/adrian95/2024100002~atk.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: USB Type-C receptacle - Role: Connector - Manufacturer Name: Molex - Manufacturer Part Number: 2024100002 - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/834/202410002_Pkg_Spec.pdf **Pins:** - CC1 [pin A5] - CC2 [pin B5] - DA- [pin A7] - DA+ [pin A6] - DB- [pin B7] - DB+ [pin B6] - GND1 [pin A1] - GND2 [pin A12] - GND3 [pin B1] - GND4 [pin B12] - RX1- [pin B10] - RX1+ [pin B11] - RX2- [pin A10] - RX2+ [pin A11] - SBU1 [pin A8] - SBU2 [pin B8] - SHIELD1 [pin SH1] - SHIELD2 [pin SH2] - SHIELD3 [pin SH3] - SHIELD4 [pin SH4] - TX1- [pin A3] - TX1+ [pin A2] - TX2- [pin B3] - TX2+ [pin B2] - VBUS1 [pin A4] - VBUS2 [pin A9] - VBUS3 [pin B4] - VBUS4 [pin B9] ### J1 — [Pin Header 01x06 2.54mm PROGRAMMING CONNECTOR](https://www.flux.ai/zalak201285/pin-header-01x06-2p54mm-programming-connector~ji.md) - Role: Connector - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Programming header for MCU UART, EN, IO0 **Pins:** - JTCK [pin 2] - JTDI [pin 1] - JTDO [pin 3] - JTMS [pin 4] - NJTRST [pin 5] - RESET [pin 6] ### J2 — [Type-C-2.0-6Pin](https://www.flux.ai/jharwinbarrozo/type-c-20-6pin~wh.md) - Datasheet URL: https://datasheet.lcsc.com/lcsc/2204071830_CIKI-Type-C-2-0-6Pin_C2987385.pdf - Role: Connector - Manufacturer Name: CIKI - Part Type: Connector - Role Details: USB-C 6-pin connector - Manufacturer Part Number: Type-C-2.0-6Pin **Pins:** - CC1 - CC2 - GND - GND__1 - SHIELD - SHIELD__1 - SHIELD__2 - SHIELD__3 - V-BUS - V-BUS__1 ### J2 — [Type-C-2.0-6Pin](https://www.flux.ai/jharwinbarrozo/type-c-20-6pin~wh.md) - Datasheet URL: https://datasheet.lcsc.com/lcsc/2204071830_CIKI-Type-C-2-0-6Pin_C2987385.pdf - Role: Connector - Manufacturer Name: CIKI - Role Details: USB-C power-only receptacle - Part Type: Connector - Manufacturer Part Number: Type-C-2.0-6Pin **Pins:** - CC1 - CC2 - GND - GND__1 - SHIELD - SHIELD__1 - SHIELD__2 - SHIELD__3 - V-BUS - V-BUS__1 ### J3 — [U.FL-R-SMT(01)](https://www.flux.ai/adrian95/upfl-r-smt01~ap.md) - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: U.FL test port - Manufacturer Name: Hirose Electric Co Ltd - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/2607/UFL%20Series.pdf - Role: Connector - Manufacturer Part Number: U.FL-R-SMT(01) - Part Type: Connector **Pins:** - GND [pin 2] - GND [pin 1] - SIG [pin 3] ### J3 — [U.FL-R-SMT(01)](https://www.flux.ai/adrian95/upfl-r-smt01~ap.md) - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/2607/UFL%20Series.pdf - Manufacturer Part Number: U.FL-R-SMT(01) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: U.FL test port - Role: Connector - Manufacturer Name: Hirose Electric Co Ltd **Pins:** - GND [pin 2] - GND [pin 1] - SIG [pin 3] ### J4 — [TC2030](https://www.flux.ai/vasy_skral/tc2030~wt.md) - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Tag-Connect SWD header - Datasheet URL: https://www.snapeda.com/parts/TC2050-IDC-NL/Tag-Connect%20LLC/datasheet/ - Part Type: Tag-connectors - Role: Connector - Manufacturer Name: Microchip Technology - Symbol Style: Parametric - Manufacturer Part Number: TC2030 **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] ### J4 — [TC2030](https://www.flux.ai/vasy_skral/tc2030~wt.md) - Symbol Style: Parametric - Manufacturer Name: Microchip Technology - Role Details: SWD programming Tag-Connect TC2030 no-leg - Part Type: Tag-connectors - Datasheet URL: https://www.snapeda.com/parts/TC2050-IDC-NL/Tag-Connect%20LLC/datasheet/ - Role: Connector - Manufacturer Part Number: TC2030 - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] ### LED1 — [SML-D13FWT86C](https://www.flux.ai/jecstronic/sml-d13fwt86c~i2q.md) - Role Details: Status indicator LED - Role: LED - Manufacturer Part Number: SML-D13FWT86C - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Rohm Semiconductor - Datasheet URL: https://fscdn.rohm.com/en/products/databook/datasheet/opto/led/chip_mono/sml-d13fwt86(c)-e.pdf - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED1 — [SML-D13FWT86C](https://www.flux.ai/jecstronic/sml-d13fwt86c~i2q.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Rohm Semiconductor - Datasheet URL: https://fscdn.rohm.com/en/products/databook/datasheet/opto/led/chip_mono/sml-d13fwt86(c)-e.pdf - Part Type: LED - Role: LED - Role Details: Status indicator LED - Manufacturer Part Number: SML-D13FWT86C **Pins:** - A [pin 2] - K [pin 1] ### LED1 — [SML-D13FWT86C](https://www.flux.ai/jecstronic/sml-d13fwt86c~i2q.md) - Part Type: LED - Datasheet URL: https://fscdn.rohm.com/en/products/databook/datasheet/opto/led/chip_mono/sml-d13fwt86(c)-e.pdf - Manufacturer Name: Rohm Semiconductor - Role Details: Status indicator LED - License: https://creativecommons.org/licenses/by/4.0/ - Role: LED - Manufacturer Part Number: SML-D13FWT86C **Pins:** - A [pin 2] - K [pin 1] ### SW1 — [1571563-8](https://www.flux.ai/vasy_skral/1571563-8~oj.md) - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=1308111-1_SWITCHES_CORE_PROGRAM_CATALOG&DocType=CS&DocLang=English - Manufacturer Part Number: 1571563-8 - Role Details: Tactile pushbutton for user input - Part Type: Switch - Role: Switch - Manufacturer Name: TE Connectivity ALCOSWITCH Switches **Pins:** - ~ [pin 3] - ~ [pin 2] - ~ [pin 1] - ~ [pin 4] ### SW1 — [1571563-8](https://www.flux.ai/vasy_skral/1571563-8~oj.md) - Role: Debouncing - Manufacturer Name: TE Connectivity ALCOSWITCH Switches - Role Details: Tactile pushbutton for user input - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=1308111-1_SWITCHES_CORE_PROGRAM_CATALOG&DocType=CS&DocLang=English - Manufacturer Part Number: 1571563-8 - Part Type: Switch **Pins:** - ~ [pin 3] - ~ [pin 2] - ~ [pin 1] - ~ [pin 4] ### U1 — [ESP32-WROOM-32E-N16](https://www.flux.ai/jecstronic/esp32-wroom-32e-n16~wqb.md) - Role Details: Dual-radio Wi-Fi + BLE MCU module - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32e_esp32-wroom-32ue_datasheet_en.pdf - Part Type: Module - Role: Microcontroller - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Espressif Systems - Manufacturer Part Number: ESP32-WROOM-32E-N16 **Pins:** - 3V3 [pin 2] - EN [pin 3] - GND [pin 47] - GND [pin 43] - GND [pin 40] - GND [pin 44] - GND [pin 46] - GND [pin 45] - GND [pin 1] - GND [pin 38] - GND [pin 39] - GND [pin 42] - GND [pin 41] - GND [pin 15] - IO0 [pin 25] - IO12 [pin 14] - IO13 [pin 16] - IO14 [pin 13] - IO15 [pin 23] - IO16 [pin 27] - IO17 [pin 28] - IO18 [pin 30] - IO19 [pin 31] - IO2 [pin 24] - IO21 [pin 33] - IO22 [pin 36] - IO23 [pin 37] - IO25 [pin 10] - IO26 [pin 11] - IO27 [pin 12] - IO32 [pin 8] - IO33 [pin 9] - IO34 [pin 6] - IO35 [pin 7] - IO4 [pin 26] - IO5 [pin 29] - NC [pin 21] - NC [pin 32] - NC [pin 18] - NC [pin 20] - NC [pin 22] - NC [pin 19] - NC [pin 17] - RXD0 [pin 34] - SENSOR_VN [pin 5] - SENSOR_VP [pin 4] - TXD0 [pin 35] ### U2 — [SHT31-DIS-B2.5KS](https://www.flux.ai/vasy_skral/sht31-dis-b25ks~lhv.md) - Manufacturer Part Number: SHT31-DIS-B2.5KS - Role Details: Digital temperature and humidity sensor with I2C interface - Part Type: Integrated Circuit - Role: Sensor - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Sensirion%20PDFs/HT_DS_SHT3x_DIS.pdf - Manufacturer Name: Sensirion AG **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] ### U2 — [SHT30-DIS-B](https://www.flux.ai/vasyl/sht30-dis-b~43e.md) - Manufacturer Name: Sensirion AG - Manufacturer Part Number: SHT30-DIS-B - Role Details: Digital Temperature/Humidity Sensor (I2C) - Role: Sensor - Part Type: Integrated Circuit - 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] - EXP [pin 9] - R [pin 7] - SCL [pin 4] - SDA [pin 1] - VDD [pin 5] - VSS [pin 8] ### U4 — [USBLC6-2P6](https://www.flux.ai/kicad-part-library/usblc6-2p6~djt.md) - Manufacturer Name: Texas Instruments Inc. - Manufacturer Part Number: USBLC6-2P6 - Role Details: Bidirectional TVS array for USB-C D+/D- ESD protection (<1 pF) - Datasheet URL: https://www.st.com/resource/en/datasheet/usblc6-2.pdf - Package or Case Code: SOT-666 - Role: Protection **Pins:** - GND [pin 2] - I/O1 [pin 6] - I/O1 [pin 1] - I/O2 [pin 3] - I/O2 [pin 4] - VBUS [pin 5] ### U4 — [USBLC6-2P6](https://www.flux.ai/kicad-part-library/usblc6-2p6~djt.md) - Package or Case Code: SOT-666 - Role: Protection - Datasheet URL: https://www.st.com/resource/en/datasheet/usblc6-2.pdf - Manufacturer Part Number: USBLC6-2P6 - Role Details: ESD protection array for USB D+ and D- lines - Manufacturer Name: Texas Instruments Inc. **Pins:** - GND [pin 2] - I/O1 [pin 6] - I/O1 [pin 1] - I/O2 [pin 3] - I/O2 [pin 4] - VBUS [pin 5] ### U5 — [TPS25210LRPWR](https://www.flux.ai/adrian95/tps25210lrpwr~9ww.md) - Manufacturer Name: Texas Instruments - Package or Case Code: TPS25210LRPWR - License: https://creativecommons.org/licenses/by/4.0/ - Role: Protection - Role Details: eFuse controller for reverse polarity, OVP, UVLO, and OCP on USB VBUS input - Datasheet URL: https://www.ti.com/lit/ds/symlink/tps2521.pdf?ts=1625110620252&ref_url=https%253A%252F%252Fwww.ti.com%252Fstore%252Fti%252Fen%252Fp%252Fproduct%252F%253Fp%253DTPS25210LRPWR - Manufacturer Part Number: TPS25210LRPWR - Part Type: Power Management **Pins:** - DVDT_1 [pin 7] - DVDT_2 [pin 14] - EN/UVLO_1 [pin 1] - EN/UVLO_2 [pin 12] - GND [pin 8] - ILM [pin 9] - IN [pin 5] - ITIMER_1 [pin 10] - ITIMER_2 [pin 11] - OUT [pin 6] - OVCSEL [pin 2] - PG [pin 3] - PGTH_1 [pin 4] - PGTH_2 [pin 13] ### U5 — [TPS25210LRPWR](https://www.flux.ai/adrian95/tps25210lrpwr~9ww.md) - Role Details: eFuse controller for reverse polarity, OVP, UVLO, and OCP on USB VBUS input - Part Type: Power Management - Manufacturer Part Number: TPS25210LRPWR - Datasheet URL: https://www.ti.com/lit/ds/symlink/tps2521.pdf?ts=1625110620252&ref_url=https%253A%252F%252Fwww.ti.com%252Fstore%252Fti%252Fen%252Fp%252Fproduct%252F%253Fp%253DTPS25210LRPWR - Role: Protection - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: TPS25210LRPWR - Manufacturer Name: Texas Instruments **Pins:** - DVDT_1 [pin 7] - DVDT_2 [pin 14] - EN/UVLO_1 [pin 1] - EN/UVLO_2 [pin 12] - GND [pin 8] - ILM [pin 9] - IN [pin 5] - ITIMER_1 [pin 10] - ITIMER_2 [pin 11] - OUT [pin 6] - OVCSEL [pin 2] - PG [pin 3] - PGTH_1 [pin 4] - PGTH_2 [pin 13] ### U5 — [TPS25210LRPWR](https://www.flux.ai/adrian95/tps25210lrpwr~9ww.md) - Part Type: Power Management - Manufacturer Part Number: TPS25210LRPWR - Role: Protection - Datasheet URL: https://www.ti.com/lit/ds/symlink/tps2521.pdf?ts=1625110620252&ref_url=https%253A%252F%252Fwww.ti.com%252Fstore%252Fti%252Fen%252Fp%252Fproduct%252F%253Fp%253DTPS25210LRPWR - Role Details: Reverse polarity, OVP, UVLO, OCP eFuse controller - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: TPS25210LRPWR - Manufacturer Name: Texas Instruments **Pins:** - DVDT_1 [pin 7] - DVDT_2 [pin 14] - EN/UVLO_1 [pin 1] - EN/UVLO_2 [pin 12] - GND [pin 8] - ILM [pin 9] - IN [pin 5] - ITIMER_1 [pin 10] - ITIMER_2 [pin 11] - OUT [pin 6] - OVCSEL [pin 2] - PG [pin 3] - PGTH_1 [pin 4] - PGTH_2 [pin 13] ### U6 — [NRF52840-QIAA-R](https://www.flux.ai/lcsc/nrf52840-qiaa-r~yts0.md) - Role: Processor - Role Details: Main BLE 5.0 MCU - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Nordic-Semicon-NRF52840-QIAA-R_C190794.pdf - LCSC Part Number: C190794 - Manufacturer Part Number: NRF52840-QIAA-R - Product Info Url: https://lcsc.com/product-detail/Others_Nordic-Semicon_NRF52840-QIAA-R_Nordic-Semicon-NRF52840-QIAA-R_C190794.html - Package or Case Code: AQFN-73_L7.0-W7.0-P0.50-BL-EP4.8 - Part Type: RF Transceiver ICs - Manufacturer Name: NORDIC - JLCPCB Part Class: Extended Part **Pins:** - ANT [pin H23] - D- [pin AD4] - D+ [pin B16] - DCC [pin B3] - DCCH [pin AB2] - DEC1 [pin C1] - DEC2 [pin A18] - DEC3 [pin D23] - DEC4 [pin B5] - DEC5 [pin N24] - DEC6 [pin E24] - DECUSB [pin AC5] - EP [pin 0] - P0.00/XL1 [pin D2] - P0.01/XL2 [pin F2] - P0.02/AIN0 [pin A12] - P0.03/AIN1 [pin B13] - P0.04/AIN2 [pin J1] - P0.05/AIN3 [pin K2] - P0.06 [pin L1] - P0.07/TRACECLK [pin M2] - P0.08 [pin N1] - P0.09/NFC1 [pin L24] - P0.10/NFC2 [pin J24] - P0.11 [pin T2] - P0.12/TRACEDATA1 [pin U1] - P0.13 [pin AD8] - P0.14 [pin AC9] - P0.15 [pin B17] - P0.16 [pin AC11] - P0.17 [pin AD12] - P0.18/nRESET [pin AC13] - P0.19 [pin AC15] - P0.20 [pin AD16] - P0.21 [pin D2] - P0.22 [pin AD18] - P0.23 [pin AC19] - P0.24 [pin AD20] - P0.25 [pin AC21] - P0.26 [pin G1] - P0.27 [pin H2] - P0.28/AIN4 [pin B11] - P0.29/AIN5 [pin A10] - P0.30/AIN6 [pin B9] - P0.31/AIN7 [pin A8] - P1.00/TRACEDATA0 [pin AD22] - P1.01 [pin Y23] - P1.02 [pin W24] - P1.03 [pin V23] - P1.04 [pin U24] - P1.05 [pin T23] - P1.06 [pin R24] - P1.07 [pin P23] - P1.08 [pin P2] - P1.09/TRACEDATA3 [pin R1] - P1.10 [pin A20] - P1.11 [pin B19] - P1.12 [pin B17] - P1.13 [pin A16] - P1.14 [pin B15] - P1.15 [pin A14] - SWDCLK [pin AA24] - SWDIO [pin AC24] - VBUS [pin AD2] - VDD [pin A22] - VDD [pin AD14] - VDD [pin AD23] - VDD [pin B1] - VDD [pin W1] - VDDH [pin Y2] - VSS [pin B7] - VSS_PA [pin F23] - XC1 [pin B24] - XC2 [pin A23] ### U6 — [nRF52840](https://www.flux.ai/vasyl/nrf52840~76.md) - Role: Microcontroller - Role Details: Main BLE 5.0 MCU - Datasheet URL: https://infocenter.nordicsemi.com/pdf/nRF52840_PS_v1.5.pdf - Part Type: Microcontroller - Manufacturer Name: Nordic Semiconductor ASA - Manufacturer Part Number: NRF52840-QIAA-R **Pins:** - AIN0/P0.02 [pin A12] - AIN1/P0.03 [pin B13] - AIN2/P0.04 [pin J1] - AIN3/P0.05 [pin K2] - AIN4/P0.28 [pin B11] - AIN5/P0.29 [pin A10] - AIN6/P0.30 [pin B9] - AIN7/P0.31 [pin A8] - ANT [pin H23] - D- [pin AD4] - D+ [pin AD6] - DCC [pin B3] - DCCH [pin AB2] - DEC1 [pin C1] - DEC2 [pin A18] - DEC3 [pin D23] - DEC4 [pin B5] - DEC5 [pin N24] - DEC6 [pin E24] - DECUSB [pin AC5] - NFC1/P0.09 [pin L24] - NFC2/P0.10 [pin J24] - P0.06 [pin L1] - P0.08 [pin N1] - P0.13 [pin AD8] - P0.14 [pin AC9] - P0.15 [pin AD10] - P0.16 [pin AC11] - P0.17 [pin AD12] - P0.18/~RESET [pin AC13] - P0.19 [pin AC15] - P0.20 [pin AD16] - P0.21 [pin AC17] - P0.22 [pin AD18] - P0.23 [pin AC19] - P0.24 [pin AD20] - P0.25 [pin AC21] - P0.26 [pin G1] - P0.27 [pin H2] - P1.01 [pin Y23] - P1.02 [pin W24] - P1.03 [pin V23] - P1.04 [pin U24] - P1.05 [pin T23] - P1.06 [pin R24] - P1.07 [pin P23] - P1.08 [pin P2] - P1.10 [pin A20] - P1.11 [pin B19] - P1.12 [pin B17] - P1.13 [pin A16] - P1.14 [pin B15] - P1.15 [pin A14] - SWDCLK [pin AA24] - SWDIO [pin AC24] - TRACECLK/P0.07 [pin M2] - TRACEDATA0/P1.00 [pin AD22] - TRACEDATA1/P0.12 [pin U1] - TRACEDATA2/P0.11 [pin T2] - TRACEDATA3/P1.09 [pin R1] - VBUS [pin AD2] - VDD [pin AD14] - VDD [pin W1] - VDD [pin A22] - VDD [pin AD23] - VDD [pin B1] - VDDH [pin Y2] - VSS [pin EP] - VSS [pin B7] - VSS_PA [pin F23] - XC1 [pin B24] - XC2 [pin A23] - XL1/P0.00 [pin D2] - XL2/P0.01 [pin F2] ### U7 — [LSM6DSO32TR](https://www.flux.ai/lcsc/lsm6dso32tr~jbqk.md) - Package or Case Code: LGA-14_L3.0-W2.5-P0.50-TL - Role: Sensor - LCSC Part Number: C1864162 - Manufacturer Part Number: LSM6DSO32TR - Part Type: Attitude Sensors - Manufacturer Name: ST(意法半导体) - JLCPCB Part Class: Extended Part - Role Details: 6-axis IMU with SPI interface, INT1/INT2 **Pins:** - CS [pin 12] - GND [pin 6] - GND [pin 7] - INT1 [pin 4] - INT2 [pin 9] - NC [pin 10] - NC [pin 11] - SCL [pin 13] - SCx [pin 3] - SDA [pin 14] - SDO/SA0 [pin 1] - SDx [pin 2] - VDD [pin 8] - VDDIO [pin 5] ### U7 — [LSM6DSO32TR](https://www.flux.ai/lcsc/lsm6dso32tr~jbqk.md) - Manufacturer Part Number: LSM6DSO32TR - Role Details: 6-axis IMU with SPI interface, INT1/INT2 - Package or Case Code: LGA-14_L3.0-W2.5-P0.50-TL - LCSC Part Number: C1864162 - JLCPCB Part Class: Extended Part - Role: Sensor - Manufacturer Name: ST(意法半导体) - Part Type: Attitude Sensors **Pins:** - CS [pin 12] - GND [pin 6] - GND [pin 7] - INT1 [pin 4] - INT2 [pin 9] - NC [pin 10] - NC [pin 11] - SCL [pin 13] - SCx [pin 3] - SDA [pin 14] - SDO/SA0 [pin 1] - SDx [pin 2] - VDD [pin 8] - VDDIO [pin 5] ### U8 — [TPS62740DSST](https://www.flux.ai/lcsc/tps62740dsst~zsf.md) - JLCPCB Part Class: Extended Part - Manufacturer Part Number: TPS62740DSST - LCSC Part Number: C2659003 - Role Details: Buck converter 5 V → 3.3 V - Role: Power Management - Package or Case Code: WSON-12_L3.0-W2.0-P0.5-BL-EP - Manufacturer Name: TI(德州仪器) **Pins:** - CTRL [pin 4] - EN [pin 12] - EP [pin 13] - GND [pin 3] - LOAD [pin 6] - PG [pin 7] - SW [pin 2] - VIN [pin 1] - VOUT [pin 5] - VSEL1 [pin 11] - VSEL2 [pin 10] - VSEL3 [pin 9] - VSEL4 [pin 8] ### U8 — [TPS62740DSST](https://www.flux.ai/lcsc/tps62740dsst~zsf.md) - Role Details: Buck converter 5 V → 3.3 V - JLCPCB Part Class: Extended Part - Manufacturer Name: TI(德州仪器) - Package or Case Code: WSON-12_L3.0-W2.0-P0.5-BL-EP - LCSC Part Number: C2659003 - Role: Power Management - Manufacturer Part Number: TPS62740DSST **Pins:** - CTRL [pin 4] - EN [pin 12] - EP [pin 13] - GND [pin 3] - LOAD [pin 6] - PG [pin 7] - SW [pin 2] - VIN [pin 1] - VOUT [pin 5] - VSEL1 [pin 11] - VSEL2 [pin 10] - VSEL3 [pin 9] - VSEL4 [pin 8] ### Y1 — [NX2016SA-32MHZ-EXS00A-CS06654](https://www.flux.ai/intellugogroup/nx2016sa-32mhz-exs00a-cs06654~1u.md) - Package or Case Code: NX2016SA_NDK - Role: Oscillator - Frequency: 32MHz - Role Details: 32 MHz crystal for MCU clock - Part Type: Oscillator - Manufacturer Part Number: NX2016SA-32MHZ-EXS00A-CS06654 **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### Y1 — [NX2016SA-32MHZ-EXS00A-CS06654](https://www.flux.ai/intellugogroup/nx2016sa-32mhz-exs00a-cs06654~1u.md) - Part Type: Oscillator - Manufacturer Part Number: NX2016SA-32MHZ-EXS00A-CS06654 - Package or Case Code: NX2016SA_NDK - Role: Oscillator - Role Details: 32 MHz crystal for MCU clock - Frequency: 32MHz **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/sbkim/horizontal-pink-electronic-thumb~lq](https://www.flux.ai/sbkim/horizontal-pink-electronic-thumb~lq).* --- *Generated from [https://www.flux.ai/sbkim/horizontal-pink-electronic-thumb~lq](https://www.flux.ai/sbkim/horizontal-pink-electronic-thumb~lq)*