# Warm Rose Robot Maid ## Description Welcome to your new project. Imagine what you can build here. ## Project Details - **Owner:** rheamalhotra - **Created:** 3/10/2026 - **Last Updated:** 3/10/2026 - **Visibility:** Public - **System Architecture:** ```mermaid flowchart TD subgraph AnalogFrontEnd [Analog Front End] MIC1["Mic 1 MA-DRA381-H13"] --> AC1["AC coupling"] MIC2["Mic 2 MA-DRA381-H13"] --> AC2["AC coupling"] VREF["Vref 1.65V"] --> BIAS1["Bias both channels"] AC1 --> AMP1["Op amp gain + HPF"] --> LPF1["1st order LPF"] --> ADC1["STM32 ADC IN1"] AC2 --> AMP2["Op amp gain + HPF"] --> LPF2["1st order LPF"] --> ADC2["STM32 ADC IN2"] VREF --> AMP1 VREF --> AMP2 end subgraph Power [Power] VDD["3.3V"] --> VREFGEN["Divider + decoupling"] --> VREF end ``` ## Key Components ### IC1 — [TLV9062IDGKT](https://www.flux.ai/adrian95/tlv9062idgkt.md) - Role Details: Mic preamp + filter per channel - Package: VSSOP-8 - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.ti.com/lit/ds/symlink/tlv9062.pdf - Part Type: Operational Amplifier (OP-AMP) - Role: Amplifier - Manufacturer Part Number: TLV9062IDGKT - Manufacturer Name: Texas Instruments **Pins:** - IN1- [pin 2] - IN1+ [pin 3] - IN2- [pin 6] - IN2+ [pin 5] - OUT1 [pin 1] - OUT2 [pin 7] - V- [pin 4] - V+ [pin 8] ### IC2 — [TLV9062IDGKT](https://www.flux.ai/adrian95/tlv9062idgkt.md) - License: https://creativecommons.org/licenses/by/4.0/ - Role: Amplifier - Manufacturer Name: Texas Instruments - Manufacturer Part Number: TLV9062IDGKT - Role Details: Mic preamp + filter per channel - Package: VSSOP-8 - Part Type: Operational Amplifier (OP-AMP) - Datasheet URL: https://www.ti.com/lit/ds/symlink/tlv9062.pdf **Pins:** - IN1- [pin 2] - IN1+ [pin 3] - IN2- [pin 6] - IN2+ [pin 5] - OUT1 [pin 1] - OUT2 [pin 7] - V- [pin 4] - V+ [pin 8] ### MK1 — [SPM0687LR5H-1](https://www.flux.ai/jecstronic/spm0687lr5h-1.md) - Role Details: Analog MEMS mic placeholder; wire as MA-DRA381-H13 VDD/GND/OUT - Part Type: Microphone - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: SPM0687LR5H-1 - Role: Sensor - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/935/SPM0687LR5H-1_DS.pdf - Manufacturer Name: Knowles **Pins:** - GROUND [pin 2] - GROUND [pin 3] - GROUND [pin 4] - OUT- [pin 6] - OUT+ [pin 1] - VDD [pin 5] ### MK2 — [SPM0687LR5H-1](https://www.flux.ai/jecstronic/spm0687lr5h-1.md) - Part Type: Microphone - Role Details: Analog MEMS mic placeholder; wire as MA-DRA381-H13 VDD/GND/OUT - Role: Sensor - Manufacturer Part Number: SPM0687LR5H-1 - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/935/SPM0687LR5H-1_DS.pdf - Manufacturer Name: Knowles - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - GROUND [pin 2] - GROUND [pin 3] - GROUND [pin 4] - OUT- [pin 6] - OUT+ [pin 1] - VDD [pin 5] ### U1 — [STM32G070CBT6](https://www.flux.ai/lcsc/stm32g070cbt6.md) - Product Info Url: https://lcsc.com/product-detail/ST-Microelectronics_STMicroelectronics-STM32G070CBT6_C529338.html - Frequency: 64MHz - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_STMicroelectronics-STM32G070CBT6_C529338.pdf - Package or Case Code: LQFP-48_L7.0-W7.0-P0.50-LS9.0-BL - Manufacturer Name: ST(意法半导体) - Manufacturer Part Number: STM32G070CBT6 - Operating Temperature: -40°C ~ 85°C (TA) - Role: MCU - Package: LQFP-48 - LCSC Part Number: C529338 - Voltage Supply: 2V ~ 3.6V - JLCPCB Part Class: Extended Part - Part Type: ST Microelectronics - Role Details: STM32G070 ADC reads ADC1_IN and ADC2_IN **Pins:** - NRST [pin 10] - PA0 [pin 11] - PA1 [pin 12] - PA10 [pin 32] - PA11[PA9] [pin 33] - PA12[PA10] [pin 34] - PA13 [pin 35] - PA14-BOOT0 [pin 36] - PA15 [pin 37] - PA2 [pin 13] - PA3 [pin 14] - PA4 [pin 15] - PA5 [pin 16] - PA6 [pin 17] - PA7 [pin 18] - PA8 [pin 28] - PA9 [pin 29] - PB0 [pin 19] - PB1 [pin 20] - PB10 [pin 22] - PB11 [pin 23] - PB12 [pin 24] - PB13 [pin 25] - PB14 [pin 26] - PB15 [pin 27] - PB2 [pin 21] - PB3 [pin 42] - PB4 [pin 43] - PB5 [pin 44] - PB6 [pin 45] - PB7 [pin 46] - PB8 [pin 47] - PB9 [pin 48] - PC13 [pin 1] - PC14-OSC32_IN [pin 2] - PC15-OSC32_OUT [pin 3] - PC6 [pin 30] - PC7 [pin 31] - PD0 [pin 38] - PD1 [pin 39] - PD2 [pin 40] - PD3 [pin 41] - PF0-OSC_IN [pin 8] - PF1-OSC_OUT [pin 9] - VBAT [pin 4] - VDD/VDDA [pin 6] - VREF+ [pin 5] - VSS/VSSA [pin 7] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/rheamalhotra/warm-rose-robot-maid](https://www.flux.ai/rheamalhotra/warm-rose-robot-maid).* --- *Generated from [https://www.flux.ai/rheamalhotra/warm-rose-robot-maid](https://www.flux.ai/rheamalhotra/warm-rose-robot-maid)*