# Worthy Rose Robot Vacuum b723 ## Description Worthy Rose Robot Vacuum - High Precision LCR Tester ## Project Details - **Owner:** itprobert - **Created:** 3/4/2026 - **Last Updated:** 3/17/2026 - **Visibility:** Public - **System Architecture:** flowchart TD USB_C["USB-C Connector"] --> ESD["ESD Protection"] ESD --> USB_UART["USB-UART Bridge"] USB_UART --> MCU["MCU"] USB_C --> VBUS_PROT["VBUS OVP and Fuse"] VBUS_PROT --> REG_33["3.3V Regulator"] MCU --> REF["Precision Reference"] MCU --> DDS["Excitation DAC or DDS"] DDS --> AFE["Analog Front End"] AFE --> ADC["Precision ADC"] AFE --> SW_RNG["Range Switches"] SW_RNG --> KELVIN["2W/4W Kelvin Terminals"] MCU --> PROG["SWD Program Debug"] ## Key Components ### IC1 — ADR4525ARZ-R7 - Part Type: Integrated Circuit - Manufacturer Part Number: ADR4525ARZ-R7 - Role Details: 2.5 V low noise reference for ADC reference - Datasheet URL: https://www.analog.com/media/en/technical-documentation/data-sheets/ADR4520_4525_4530_4533_4540_4550.pdf - Package: SOIC-8 - Role: Reference - Manufacturer Name: Analog Devices Inc. **Pins:** - GND [pin 4] - IN [pin 2] - NC [pin 1] - NC [pin 7] - NC [pin 8] - NC [pin 5] - NC [pin 3] - OUT [pin 6] ### J1 — USB-C 2.0 Receptacle - Manufacturer Name: GTC - Purchase Url: https://www.digikey.com/en/products/detail/gct/USB4105-GF-A/11198441 - Role: Connector - Part Type: USB C - Role Details: USB-C receptacle, USB 2.0 device port - Datasheet URL: https://gct.co/files/drawings/usb4105.pdf - Manufacturer Part Number: USB4105-GF-A **Pins:** - CC1 [pin 6] - CC2 [pin 12] - D- [pin 9] - D- [pin 7] - D+ [pin 10] - D+ [pin 8] - GND [pin 15] - GND [pin 1] - GND [pin 16] - GND [pin 2] - SBU1 [pin 11] - SBU2 [pin 5] - VBUS [pin 14] - VBUS [pin 13] - VBUS [pin 4] - VBUS [pin 3] ### J2 — ARM JTAG SWD 10Pin 0.05" Connector - Manufacturer Part Number: FTSH-105-01-L-DV-007-K - Manufacturer Name: Analog Devices - Role Details: 10-pin 1.27 mm SWD header (Cortex debug) - Datasheet URL: https://suddendocs.samtec.com/catalog_english/ftsh_smt.pdf - Part Type: Connector - Role: Programming/Debug **Pins:** - ~RESET~ [pin 10] - GND [pin 5] - GND [pin 3] - GNDDetect [pin 9] - NC/TDI [pin 8] - SWDCLK/TCK [pin 4] - SWDIO/TMS [pin 2] - SWO/TDO [pin 6] - VTref [pin 1] ### J3 — 1725672 - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 1725672 - Role: Connector - Manufacturer Name: Phoenix Contact - Datasheet URL: https://datasheet.datasheetarchive.com/originals/distributors/SFDatasheet-2/sf-00050602.pdf - Role Details: 4-position terminal block for Kelvin connections - Package or Case Code: 1725672 **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### U1 — USBLC6-2P6 - Role Details: USB D+/D- low capacitance ESD protection - Manufacturer Part Number: USBLC6-2P6 - Package or Case Code: SOT-666 - Datasheet URL: https://www.st.com/resource/en/datasheet/usblc6-2.pdf - Manufacturer Name: Texas Instruments Inc. - Role: Protection **Pins:** - GND [pin 2] - I/O1 [pin 1] - I/O1 [pin 6] - I/O2 [pin 3] - I/O2 [pin 4] - VBUS [pin 5] ### U10 — 5017 - Manufacturer Part Number: 5017 - Product Info Url: https://lcsc.com/product-detail/Test-Points-Test-Rings_Keystone_5017_Keystone-5017_C238130.html - Package or Case Code: TEST-SMD_L2.7-W1.0 - LCSC Part Number: C238130 - Role Details: SMD test ring for Kelvin Force/Sense nodes - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2401241010_Keystone-5017_C238130.pdf - JLCPCB Part Class: Extended Part - Role: Test Point - Part Type: Test Points/Test Rings - Manufacturer Name: Keystone **Pins:** - 1 [pin 1] ### U11 — 5017 - LCSC Part Number: C238130 - Package or Case Code: TEST-SMD_L2.7-W1.0 - Manufacturer Part Number: 5017 - Product Info Url: https://lcsc.com/product-detail/Test-Points-Test-Rings_Keystone_5017_Keystone-5017_C238130.html - JLCPCB Part Class: Extended Part - Role Details: SMD test ring for Kelvin Force/Sense nodes - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2401241010_Keystone-5017_C238130.pdf - Role: Test Point - Manufacturer Name: Keystone - Part Type: Test Points/Test Rings **Pins:** - 1 [pin 1] ### U12 — AD9833BRMZ-REEL - Package or Case Code: MSOP-10_L3.0-W3.0-P0.50-LS5.0-BL - Manufacturer Name: ADI(亚德诺) - JLCPCB Part Class: Extended Part - Package: MSOP-10 - Role Details: DDS sinewave source, SPI controlled by MCU - Product Info Url: https://lcsc.com/product-detail/Pre-ordered-Products_Analog-Devices_AD9833BRMZ-REEL_Analog-Devices-ADI-LINEAR-AD9833BRMZ-REEL_C653879.html - Manufacturer Part Number: AD9833BRMZ-REEL - Role: Excitation - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Analog-Devices-AD9833BRMZ-REEL_C653879.pdf - Part Type: Direct Digital Synthesis (DDS) - LCSC Part Number: C653879 **Pins:** - AGND [pin 9] - CAP/2.5V [pin 3] - COMP [pin 1] - DGND [pin 4] - FSYNC [pin 8] - MCLK [pin 5] - SCLK [pin 7] - SDATA [pin 6] - VDD [pin 2] - VOUT [pin 10] ### U13 — OPA2192IDGKR - Part Type: Precision OpAmps - Manufacturer Name: TI(德州仪器) - Package: VSSOP-8 - Manufacturer Part Number: OPA2192IDGKR - LCSC Part Number: C2876419 - Package or Case Code: VSSOP-8_L3.0-W3.0-P0.65-LS4.9-BL - Role Details: Dual op-amp: DDS output buffer, mid-supply reference buffer, and TIA/measurement conditioning - JLCPCB Part Class: Extended Part - Role: Amplifier **Pins:** - 1IN- [pin 2] - 1IN+ [pin 3] - 1OUT [pin 1] - 2IN- [pin 6] - 2IN+ [pin 5] - 2OUT [pin 7] - GND [pin 4] - VCC+ [pin 8] ### U14 — OPA2192IDGKR - Role: Amplifier - Package or Case Code: VSSOP-8_L3.0-W3.0-P0.65-LS4.9-BL - Package: VSSOP-8 - JLCPCB Part Class: Extended Part - LCSC Part Number: C2876419 - Role Details: Dual op-amp: DDS output buffer, mid-supply reference buffer, and TIA/measurement conditioning - Manufacturer Part Number: OPA2192IDGKR - Part Type: Precision OpAmps - Manufacturer Name: TI(德州仪器) **Pins:** - 1IN- [pin 2] - 1IN+ [pin 3] - 1OUT [pin 1] - 2IN- [pin 6] - 2IN+ [pin 5] - 2OUT [pin 7] - GND [pin 4] - VCC+ [pin 8] ### U15 — USBLC6-4SC6 - Package: SOT-23-6 - Manufacturer Name: Texas Instruments Inc. - Role Details: Low-capacitance ESD diode array for Kelvin terminal lines - Package or Case Code: SOT-23-6 - Datasheet URL: https://www.st.com/resource/en/datasheet/usblc6-4.pdf - Role: Protection - Manufacturer Part Number: USBLC6-4SC6 **Pins:** - GND [pin 2] - I/O1 [pin 1] - I/O2 [pin 3] - I/O3 [pin 4] - I/O4 [pin 6] - VBUS [pin 5] ### U2 — CP2102N-A02-GQFN20 - Manufacturer Part Number: CP2102N-A02-GQFN20 - Part Type: Microcontroller - Manufacturer Name: SILICON LABS - Datasheet URL: https://www.silabs.com/documents/public/data-sheets/cp2102n-datasheet.pdf **Pins:** - ~CTS [pin 15] - ~RTS [pin 16] - ~RXT~/GPIO.3 [pin 19] - ~SUSPEND [pin 11] - ~TXT~/GPIO.2 [pin 20] - ~WAKEUP [pin 13] - CLK/GPIO.0 [pin 2] - D- [pin 5] - D+ [pin 4] - GND [pin 12] - GND [pin 21] - GND [pin 3] - NC [pin 10] - RS485/GPIO.1 [pin 1] - RXD [pin 17] - RXD [pin 9] - SUSPEND [pin 14] - TXD [pin 18] - USB [pin 8] - VDD [pin 6] - VREGIN [pin 7] ### U3 — STM32G071KBU6 - Datasheet URL: https://www.st.com/resource/en/datasheet/stm32g071cb.pdf - Part Type: Microcontroller - Manufacturer Part Number: STM32G071KBU6 - Manufacturer Name: STMicroelectronics **Pins:** - ~RST~/PF2 [pin 6] - OSC32_IN/PC14 [pin 2] - OSC32_OUT/PC15 [pin 3] - PA0 [pin 7] - PA1 [pin 8] - PA10 [pin 21] - PA11_[PA9] [pin 22] - PA12_[PA10] [pin 23] - PA13 [pin 24] - PA14/BOOT0 [pin 25] - PA15 [pin 26] - PA2 [pin 9] - PA3 [pin 10] - PA4 [pin 11] - PA5 [pin 12] - PA6 [pin 13] - PA7 [pin 14] - PA8 [pin 18] - PA9 [pin 19] - PB0 [pin 15] - PB1 [pin 16] - PB2 [pin 17] - PB3 [pin 27] - PB4 [pin 28] - PB5 [pin 29] - PB6 [pin 30] - PB7 [pin 31] - PB8 [pin 32] - PB9 [pin 1] - PC6 [pin 20] - VDD/VDDA [pin 4] - VSS/VSSA [pin 33] - VSS/VSSA [pin 5] ### U4 — ADS1120IRVAT - Part Type: ADC - Manufacturer Name: Texas Instruments - Role Details: 16-bit SPI ADC for sensing excitation response - Role: Measurement - Package: VQFN-16 - Manufacturer Part Number: ADS1120IRVAT - Datasheet URL: https://www.ti.com/lit/ds/symlink/ads1120.pdf **Pins:** - ~CS [pin 16] - ~DRDY [pin 12] - AIN0/REFP1 [pin 9] - AIN1 [pin 8] - AIN2 [pin 5] - AIN3/REFN1 [pin 4] - AVDD [pin 10] - AVSS [pin 3] - CLK [pin 1] - DGND [pin 2] - DIN [pin 14] - DOUT/~DRDY [pin 13] - DVDD [pin 11] - PAD [pin 17] - REFN0 [pin 6] - REFP0 [pin 7] - SCLK [pin 15] ### U5 — ADG824BCP - Role: Analog Switch - Package or Case Code: Analog_LFCSP-UQ-10_1.3x1.6mm_P0.4mm - Manufacturer Part Number: ADG824BCP - Manufacturer Name: Texas Instruments Inc. - Role Details: Dual SPDT used for range selection and Kelvin routing - Package: LFCSP-10 - Datasheet URL: https://www.analog.com/media/en/technical-documentation/data-sheets/ADG884.pdf **Pins:** - D1 [pin 2] - D2 [pin 8] - GND [pin 10] - IN1 [pin 4] - IN2 [pin 5] - S1A [pin 1] - S1B [pin 3] - S2A [pin 9] - S2B [pin 7] - VDD [pin 6] ### U6 — ADG824BCP - Package or Case Code: Analog_LFCSP-UQ-10_1.3x1.6mm_P0.4mm - Role Details: Dual SPDT used for range selection and Kelvin routing - Datasheet URL: https://www.analog.com/media/en/technical-documentation/data-sheets/ADG884.pdf - Role: Analog Switch - Manufacturer Name: Texas Instruments Inc. - Package: LFCSP-10 - Manufacturer Part Number: ADG824BCP **Pins:** - D1 [pin 2] - D2 [pin 8] - GND [pin 10] - IN1 [pin 4] - IN2 [pin 5] - S1A [pin 1] - S1B [pin 3] - S2A [pin 9] - S2B [pin 7] - VDD [pin 6] ### U7 — AP2112K-3.3TRG1 - Role: Regulator - Manufacturer Name: https://www.diodes.com/assets/Datasheets/AP2112.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: AP2112K-3.3TRG1 - Role Details: 5 V to 3.3 V LDO for digital and analog rails (pre-filtered) - Part Type: Integrated Circuit - Package: SOT-23-5 - Datasheet URL: Diodes Incorporated **Pins:** - EN [pin 3] - GND [pin 2] - NC [pin 4] - VIN [pin 1] - VOUT [pin 5] ### U8 — 5017 - Role Details: SMD test ring for Kelvin Force/Sense nodes - LCSC Part Number: C238130 - Role: Test Point - Package or Case Code: TEST-SMD_L2.7-W1.0 - Product Info Url: https://lcsc.com/product-detail/Test-Points-Test-Rings_Keystone_5017_Keystone-5017_C238130.html - Manufacturer Part Number: 5017 - JLCPCB Part Class: Extended Part - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2401241010_Keystone-5017_C238130.pdf - Manufacturer Name: Keystone - Part Type: Test Points/Test Rings **Pins:** - 1 [pin 1] ### U9 — 5017 - Manufacturer Name: Keystone - Role Details: SMD test ring for Kelvin Force/Sense nodes - Part Type: Test Points/Test Rings - JLCPCB Part Class: Extended Part - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2401241010_Keystone-5017_C238130.pdf - LCSC Part Number: C238130 - Role: Test Point - Package or Case Code: TEST-SMD_L2.7-W1.0 - Product Info Url: https://lcsc.com/product-detail/Test-Points-Test-Rings_Keystone_5017_Keystone-5017_C238130.html - Manufacturer Part Number: 5017 **Pins:** - 1 [pin 1] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/itprobert/worthy-rose-robot-vacuum-b723~lz](https://www.flux.ai/itprobert/worthy-rose-robot-vacuum-b723~lz).* --- *Generated from [https://www.flux.ai/itprobert/worthy-rose-robot-vacuum-b723~lz](https://www.flux.ai/itprobert/worthy-rose-robot-vacuum-b723~lz)*