# SafeJob device ## Description 3.3V LiPo-Powered UWB Sensor Node: XIAO ESP32S3 & RyUwb_lite Integration ## Project Details - **Owner:** rail29 - **Created:** 11/19/2025 - **Last Updated:** 11/19/2025 - **Visibility:** Public - **Connectivity:** WiFi - **Software:** Arduino - **Domain:** Consumer Electronics - **System Architecture:** graph LR X(XIAO ESP32S3) LED(LED) BZR(Buzzer) MPU(MPU-6050) UWB(RyUwb_lite UWB) BAT([LiPo Connector]) SW[Slide Switch] X -- D2 --> R_LED --> LED X -- D3 --> BZR X -- SDA/SCL --> MPU X -- D8 --> MPU_INT X -- D6 --> UWB_RX X -- D7 --> UWB_TX X -- D1 --> UWB_NRST BAT -- SW --> X_VIN BAT_GND -- GND -- X_GND X -- VCC3V3 --> LED X -- VCC3V3 --> BZR X -- VCC3V3 --> MPU X -- VCC3V3 --> UWB - **Power Requirements:** Battery ## Key Components ### B1 — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Role Details: Active buzzer - Resistance: 500Ω - Package: SMD_0603_1608Metric - Part Type: Resistor - Role: Interface **Pins:** - P1 [pin 1] - P2 [pin 2] ### J1 — [B2B-PH-K-S(LF)(SN)](https://www.flux.ai/jecstronic/b2b-ph-k-slfsn~nss.md) - Manufacturer Part Number: B2B-PH-K-S(LF)(SN) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: JST Sales America - Datasheet URL: https://datasheet.lcsc.com/lcsc/1811151524_JST-Sales-America-B2B-PH-K-S-LF-SN_C131337.pdf - Part Type: Connector - Role Details: Battery JST-PH connector **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] ### SW1 — [OS102011MS2QN1](https://www.flux.ai/adrian95/os102011ms2qn1~wd3.md) - Manufacturer Name: C&K - Role Details: Slide switch for battery power path - Manufacturer Part Number: OS102011MS2QN1 - Datasheet URL: https://www.ckswitches.com/media/1428/os.pdf - Part Type: Switch - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### U1 — [Seeed Studio XIAO ESP32S3](https://www.flux.ai/seeedstudio/seeed-studio-xiao-esp32s3~jt.md) - Role Details: Main MCU - Datasheet URL: https://files.seeedstudio.com/wiki/SeeedStudio-XIAO-ESP32S3/res/esp32-s3_datasheet.pdf - Manufacturer Part Number: 113991114 - Product Info Url: https://wiki.seeedstudio.com/xiao_esp32s3_getting_started/ - Purchase Url: https://www.seeedstudio.com/XIAO-ESP32S3-p-5627.html - Role: Microcontroller - Manufacturer Name: Seeed Studio - Part Type: Microcontroller **Pins:** - 3V3 [pin 12] - 5V [pin 14] - D10_A10_MOSI_GPIO9_TOUCH9 [pin 11] - D7_RX_GPIO44 [pin 8] - D8_A8_SCK_GPIO7_TOUCH7 [pin 9] - D9_A9_MISO_GPIO8_TOUCH8 [pin 10] - GND [pin 13] - GPIO43_TX_D6 [pin 7] - TOUCH1_GPIO1_A0_D0 [pin 1] - TOUCH2_GPIO2_A1_D1 [pin 2] - TOUCH3_GPIO3_A2_D2 [pin 3] - TOUCH4_GPIO4_A3_D3 [pin 4] - TOUCH5_GPIO5_SDA_A4_D4 [pin 5] - TOUCH6_GPIO6_SCL_A5_D5 [pin 6] ### U3 — [DWM1001](https://www.flux.ai/kicad-part-library/dwm1001~q8a.md) - Part Type: RF Module - Role Details: UWB module for Ultra-Wideband communication - Datasheet URL: https://www.decawave.com/sites/default/files/dwm1001_datasheet.pdf - Manufacturer Name: Texas Instruments Inc. - Package or Case Code: DecaWave_DWM1001 - Manufacturer Part Number: DWM1001 **Pins:** - ~{RESET} [pin 33] - ~{SPIS_CS} [pin 29] - BT_WAKE_UP [pin 32] - GND [pin 24] - GND [pin 1] - GND [pin 11] - GND [pin 34] - GPIO_0 [pin 22] - GPIO_1 [pin 21] - GPIO_10 [pin 4] - GPIO_12 [pin 6] - GPIO_13 [pin 17] - GPIO_14 [pin 7] - GPIO_15 [pin 23] - GPIO_2 [pin 31] - GPIO_22 [pin 8] - GPIO_23 [pin 16] - GPIO_27 [pin 13] - GPIO_3 [pin 30] - GPIO_30 [pin 10] - GPIO_31 [pin 9] - GPIO_8 [pin 25] - GPIO_9 [pin 5] - I2C_SCL [pin 15] - I2C_SDA [pin 14] - READY [pin 19] - SPIS_CLK [pin 28] - SPIS_MISO [pin 26] - SPIS_MOSI [pin 27] - SWD_CLK [pin 2] - SWD_DIO [pin 3] - UART_RX [pin 18] - UART_TX [pin 20] - VCC [pin 12] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/rail29/safejob-device~ih](https://www.flux.ai/rail29/safejob-device~ih).* --- *Generated from [https://www.flux.ai/rail29/safejob-device~ih](https://www.flux.ai/rail29/safejob-device~ih)*