# ESP32\-S3 LiDAR Lock Controller Final

## Description

Compact 2S battery\-powered ESP32\-S3 controller using continuous TF\-Luna UART distance sensing and a low\-profile MOSFET H\-bridge to pulse a 7\.4 V automotive lock actuator\. Target PCB envelope is 40 × 75 × 10 mm assembled\.

## Project Details

- **Owner:** itssam
- **Created:** 9/22/2026
- **Last Updated:** 9/24/2026
- **Visibility:** Public

## Key Components

### D1 — [USBLC6\-2SC6](https://flux.ai/vasy_skral/usblc6-2sc6~g1b.md)

- Manufacturer Part Number: USBLC6\-2SC6
- Role: ESD Protection
- JLCPCB Part Class: Extended Part
- Symbol Style: parametric\-v1
- Functional Group: TF\-Luna Interface,Programming and Debug
- License: https://creativecommons\.org/licenses/by/4\.0/
- Part Type: Protection
- Role Details: Protect exposed two\-wire data interface near connector
- Manufacturer Name: STMicroelectronics
- Datasheet URL: https://www\.st\.com/content/ccc/resource/technical/document/datasheet/06/1d/48/9c/6c/20/4a/b2/CD00050750\.pdf/files/CD00050750\.pdf/jcr:content/translations/en\.CD00050750\.pdf
- LCSC Part Number: C7519

**Pins:**
- GND [pin 2]
- I/O1 [pin 6]
- I/O1 [pin 1]
- I/O2 [pin 3]
- I/O2 [pin 4]
- VBUS [pin 5]

### D2 — [USBLC6\-2SC6](https://flux.ai/vasy_skral/usblc6-2sc6~g1b.md)

- Manufacturer Part Number: USBLC6\-2SC6
- Symbol Style: parametric\-v1
- Role Details: Protect exposed two\-wire data interface near connector
- Functional Group: TF\-Luna Interface,Programming and Debug
- Role: ESD Protection
- License: https://creativecommons\.org/licenses/by/4\.0/
- Part Type: Protection
- Manufacturer Name: STMicroelectronics
- Datasheet URL: https://www\.st\.com/content/ccc/resource/technical/document/datasheet/06/1d/48/9c/6c/20/4a/b2/CD00050750\.pdf/files/CD00050750\.pdf/jcr:content/translations/en\.CD00050750\.pdf
- LCSC Part Number: C7519
- JLCPCB Part Class: Extended Part

**Pins:**
- GND [pin 2]
- I/O1 [pin 6]
- I/O1 [pin 1]
- I/O2 [pin 3]
- I/O2 [pin 4]
- VBUS [pin 5]

### D3 — [SMAJ10A\-13\-F](https://flux.ai/lcsc/smaj10a-13-f~c3rp.md)

- Functional Group: H\-Bridge and Actuator
- LCSC Part Number: C134939
- Part Type: TVS
- JLCPCB Part Class: Extended Part
- Role: Transient Suppression
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2304140030\_Diodes\-Incorporated\-SMAJ10A\-13\-F\_C134939\.pdf
- Manufacturer Name: DIODES\(美台\)
- Role Details: 10 V standoff TVS across protected pack near H\-bridge
- Product Info Url: https://lcsc\.com/product\-detail/TVS\_DIODES\_SMAJ10A\-13\-F\_SMAJ10A\-13\-F\_C134939\.html
- Manufacturer Part Number: SMAJ10A\-13\-F
- Package or Case Code: SMA\_L4\.3\-W2\.6\-LS5\.2\-RD

**Pins:**
- A [pin 2]
- C [pin 1]

### D4 — [1N4148WS\-R1\_000A4](https://flux.ai/lcsc/1n4148ws-r1000a4~yfp.md)

- Package or Case Code: SOD\-323\_L1\.8\-W1\.3\-LS2\.5\-RD
- Product Info Url: https://lcsc\.com/product\-detail/New\-Arrivals\_PANJIT\-International\-1N4148WS\-R1\-000A4\_C268414\.html
- Part Type: Switching Diode
- Manufacturer Name: PANJIT\(强茂\)
- Role: Protection
- Role Details: BQ76907 REGSRC supply isolation/hold\-up diode
- LCSC Part Number: C268414
- JLCPCB Part Class: Extended Part
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2007201007\_PANJIT\-International\-1N4148WS\-R1\-000A4\_C268414\.pdf
- Functional Group: Battery Protection and Balancing
- Manufacturer Part Number: 1N4148WS\-R1\_000A4

**Pins:**
- A [pin 2]
- C [pin 1]

### D5 — [1N4148WS\-R1\_000A4](https://flux.ai/lcsc/1n4148ws-r1000a4~yfp.md)

- Package or Case Code: SOD\-323\_L1\.8\-W1\.3\-LS2\.5\-RD
- Role Details: BQ76907 BAT supply isolation diode
- Product Info Url: https://lcsc\.com/product\-detail/New\-Arrivals\_PANJIT\-International\-1N4148WS\-R1\-000A4\_C268414\.html
- Part Type: Switching Diode
- Manufacturer Name: PANJIT\(强茂\)
- Functional Group: Battery Protection and Balancing
- Role: Protection
- LCSC Part Number: C268414
- JLCPCB Part Class: Extended Part
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2007201007\_PANJIT\-International\-1N4148WS\-R1\-000A4\_C268414\.pdf
- Manufacturer Part Number: 1N4148WS\-R1\_000A4

**Pins:**
- A [pin 2]
- C [pin 1]

### J1 — [533980671](https://flux.ai/lcsc/533980671~j6vd.md)

- Role Details: Exact Molex PicoBlade 53398\-0671 / 533980671, six TF\-Luna functional contacts; pads 7 and 8 are mechanical fitting nails\.
- Connector Type: Molex PicoBlade vertical SMD header
- Manufacturer Name: MOLEX
- Part Type: Wire To Board / Wire To Wire Connector
- Role: TF\-Luna Interface
- Functional Group: TF\-Luna Interface
- Connector Positions: 6
- Manufacturer Part Number: 533980671
- LCSC Part Number: C277393
- Connector Pitch: 1\.25mm
- Connector Gender: Male
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2411061552\_MOLEX\-533980671\_C277393\.pdf
- Package or Case Code: CONN\-SMD\_6P\-P1\.25\-V\-M\_533980671
- Product Info Url: https://lcsc\.com/product\-detail/Others\_MOLEX\-533980671\_C277393\.html
- JLCPCB Part Class: Extended Part

**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
- 7 [pin 7]
- 8 [pin 8]

### J13 — [S5B\-XH\-A\(LF\)\(SN\)](https://flux.ai/jecstronic/s5b-xh-alfsn~5t.md)

- LCSC Part Number: C263757
- Functional Group: GPS Interface
- Manufacturer Part Number: S5B\-XH\-A\(LF\)\(SN\)
- JLCPCB Part Class: Extended Part
- Manufacturer Name: JST
- Role Details: Low\-profile side\-entry GPS UART/PPS connector; pins 1 GND, 2 3V3, 3 GPS\_TX, 4 GPS\_RX, 5 GPS\_PPS
- Part Type: Connector
- Datasheet URL: https://www\.jst\-mfg\.com/product/pdf/eng/eXH\.pdf
- License: https://creativecommons\.org/licenses/by/4\.0/

**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]

### J2 — [1751251](https://flux.ai/silicon-yard/1751251~wo.md)

- Mount: Through Hole
- Datasheet URL: https://www\.phoenixcontact\.com/en\-us/products/printed\-circuit\-board\-terminal\-mkds\-1\-3\-35\-1751251?type=pdf
- License: https://creativecommons\.org/licenses/by/4\.0/
- LCSC Part Number: C91152
- Symbol Style: parametric\-v1
- Part Type: Connector
- Role Details: Modified 2S holder input: pin 1 BATT\_NEG \(black\), pin 2 CELL\_MID added sense wire, pin 3 BATT\_POS \(red\)\. Main path rated for 10\.5 A peak; midpoint is sensing only\.
- Manufacturer Part Number: 1751251
- Connector Positions: 3
- Manufacturer Name: Phoenix Contact
- Functional Group: Battery Protection and Balancing,H\-Bridge and Actuator
- Role: High Current Battery Connector
- JLCPCB Part Class: Extended Part
- Current Rating: 17\.5A

**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]

### J3 — [1751248](https://flux.ai/jecstronic/1751248~ijc.md)

- Role: Power Conversion
- Part Type: Connector
- License: https://creativecommons\.org/licenses/by/4\.0/
- Manufacturer Part Number: 1751248
- Manufacturer Name: Phoenix Contact
- Datasheet URL: https://media\.digikey\.com/PDF/Data%20Sheets/Phoenix%20Contact%20PDFs/1751248\.pdf
- Role Details: Two\-wire automotive lock actuator output: terminal 1 MOTOR\_A, terminal 2 MOTOR\_B\. Nominal 10 A, maximum load 12 A\.
- Current Rating: 10A
- Functional Group: H\-Bridge and Actuator
- Connector Positions: 2

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### J4 — [TYPE\-C\-31\-M\-12](https://flux.ai/lcsc/type-c-31-m-12~0mos.md)

- Connector Type: USB\-C receptacle
- Role: Protection
- LCSC Part Number: C165948
- Role Details: USB\-C 2\.0 device receptacle; VBUS sense only, independent 5\.1k CC pull\-downs, ESD\-protected D\+/D\- continuity
- Part Type: USB Connectors
- Product Info Url: https://lcsc\.com/product\-detail/USB\-Type\-C\_Korean\-Hroparts\-Elec\-TYPE\-C\-31\-M\-12\_C165948\.html
- Manufacturer Part Number: TYPE\-C\-31\-M\-12
- Manufacturer Name: Hroparts
- JLCPCB Part Class: Extended Part
- Datasheet URL: https://www\.lcsc\.com/datasheet/lcsc\_datasheet\_2410010003\_Korean\-Hroparts\-Elec\-TYPE\-C\-31\-M\-12\_C165948\.pdf
- Functional Group: Programming and Debug
- Connector Gender: Receptacle
- Package or Case Code: USB\-C\_SMD\-TYPE\-C\-31\-M\-12

**Pins:**
- CC1 [pin A5]
- CC2 [pin B5]
- DN1 [pin A7]
- DN2 [pin B7]
- DP1 [pin A6]
- DP2 [pin B6]
- GND [pin B1]
- GND [pin B12]
- GND [pin A12]
- GND [pin A1]
- SBU1 [pin A8]
- SBU2 [pin B8]
- SH [pin 0]
- SH [pin 2]
- SH [pin 1]
- SH [pin 3]
- VBUS [pin A4]
- VBUS [pin B4]
- VBUS [pin B9]
- VBUS [pin A9]

### Q3 — [AON7544](https://flux.ai/lcsc/aon7544~r0kv.md)

- Role: Switching
- Part Type: MOSFETs
- Manufacturer Name: AOS
- Power: 3W
- Continuous Drain Current: 30A
- Drain to Source Voltage: 30V
- Manufacturer Part Number: AON7544
- Role Details: DRV8701 high\-side bridge FET; 30 V, \<=5 mOhm at 10 V gate, 10 A pulse
- Operating Temperature: \-55 \~ \+150℃
- Package or Case Code: DFN\-8\_L3\.3\-W3\.3\-P0\.65\-BL\-2
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2410010102\_Alpha\-\-\-Omega\-Semicon\-AON7544\_C315567\.pdf
- LCSC Part Number: C315567
- JLCPCB Part Class: Extended Part
- Functional Group: H\-Bridge and Actuator
- Transistor Type: N\-Channel
- Product Info Url: https://lcsc\.com/product\-detail/\_Alpha\-Omega\-Semicon\_AON7544\_Alpha\-Omega\-Semicon\-AOS\-AON7544\_C315567\.html

**Pins:**
- D [pin 5]
- G [pin 4]
- S [pin 1]
- S [pin 2]
- S [pin 3]

### Q4 — [AON7544](https://flux.ai/lcsc/aon7544~r0kv.md)

- Role Details: DRV8701 low\-side bridge FET; 30 V, \<=5 mOhm at 10 V gate, 10 A pulse
- Part Type: MOSFETs
- Manufacturer Name: AOS
- Power: 3W
- Continuous Drain Current: 30A
- Drain to Source Voltage: 30V
- Manufacturer Part Number: AON7544
- Operating Temperature: \-55 \~ \+150℃
- Package or Case Code: DFN\-8\_L3\.3\-W3\.3\-P0\.65\-BL\-2
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2410010102\_Alpha\-\-\-Omega\-Semicon\-AON7544\_C315567\.pdf
- LCSC Part Number: C315567
- JLCPCB Part Class: Extended Part
- Role: Switching
- Transistor Type: N\-Channel
- Functional Group: H\-Bridge and Actuator
- Product Info Url: https://lcsc\.com/product\-detail/\_Alpha\-Omega\-Semicon\_AON7544\_Alpha\-Omega\-Semicon\-AOS\-AON7544\_C315567\.html

**Pins:**
- D [pin 5]
- G [pin 4]
- S [pin 1]
- S [pin 2]
- S [pin 3]

### Q5 — [AON7544](https://flux.ai/lcsc/aon7544~r0kv.md)

- Part Type: MOSFETs
- Manufacturer Name: AOS
- Power: 3W
- Role: Switching
- Continuous Drain Current: 30A
- Drain to Source Voltage: 30V
- Manufacturer Part Number: AON7544
- Operating Temperature: \-55 \~ \+150℃
- Package or Case Code: DFN\-8\_L3\.3\-W3\.3\-P0\.65\-BL\-2
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2410010102\_Alpha\-\-\-Omega\-Semicon\-AON7544\_C315567\.pdf
- LCSC Part Number: C315567
- Role Details: DRV8701 high\-side bridge FET; 30 V, \<=5 mOhm at 10 V gate, 10 A pulse
- Functional Group: H\-Bridge and Actuator
- JLCPCB Part Class: Extended Part
- Transistor Type: N\-Channel
- Product Info Url: https://lcsc\.com/product\-detail/\_Alpha\-Omega\-Semicon\_AON7544\_Alpha\-Omega\-Semicon\-AOS\-AON7544\_C315567\.html

**Pins:**
- D [pin 5]
- G [pin 4]
- S [pin 1]
- S [pin 2]
- S [pin 3]

### Q6 — [AON7544](https://flux.ai/lcsc/aon7544~r0kv.md)

- Part Type: MOSFETs
- Manufacturer Name: AOS
- Power: 3W
- Continuous Drain Current: 30A
- Drain to Source Voltage: 30V
- Functional Group: H\-Bridge and Actuator
- Manufacturer Part Number: AON7544
- Operating Temperature: \-55 \~ \+150℃
- Package or Case Code: DFN\-8\_L3\.3\-W3\.3\-P0\.65\-BL\-2
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2410010102\_Alpha\-\-\-Omega\-Semicon\-AON7544\_C315567\.pdf
- LCSC Part Number: C315567
- Role: Switching
- JLCPCB Part Class: Extended Part
- Role Details: DRV8701 low\-side bridge FET; 30 V, \<=5 mOhm at 10 V gate, 10 A pulse
- Transistor Type: N\-Channel
- Product Info Url: https://lcsc\.com/product\-detail/\_Alpha\-Omega\-Semicon\_AON7544\_Alpha\-Omega\-Semicon\-AOS\-AON7544\_C315567\.html

**Pins:**
- D [pin 5]
- G [pin 4]
- S [pin 1]
- S [pin 2]
- S [pin 3]

### RS1 — [HoJLR2512\-3W\-4mR\-1%](https://flux.ai/lcsc/hojlr2512-3w-4mr-1percent~wldr.md)

- Power Rating: 3W
- JLCPCB Part Class: Extended Part
- Functional Group: Battery Protection and Balancing
- Tolerance: 1%
- Package or Case Code: RES\-SMD\_L6\.4\-W3\.2\-R2512
- Role: Sensing \(Shunt\)
- Manufacturer Part Number: HoJLR2512\-3W\-4mR\-1%
- Part Type: Chip Resistor \- Surface Mount
- Role Details: 4 mΩ HY2120/BQ76907 shunt; firmware calibration uses 4 mΩ\. Conservative 10\.565 A / 500 ms no\-trip design\.
- Manufacturer Name: Other
- LCSC Part Number: C2904236
- Resistance: 4mΩ
- Datasheet URL: https://yunpan\.cdn\.site\.joinf\.com/5431183857946211/3GTeK5SSBR\.pdf
- Allow Substitutes: No

**Pins:**
- 1 [pin 1]
- 2 [pin 2]

### RS2 — [HoJLR2512\-3W\-2mR\-1%](https://flux.ai/lcsc/hojlr2512-3w-2mr-1percent~nmnt.md)

- JLCPCB Part Class: Extended Part
- Package or Case Code: RES\-SMD\_L6\.4\-W3\.2\-R2512
- Role: Current Sense
- Part Type: Current Sense Resistors/Shunt Resistors
- Role Details: 2 mOhm 3 W H\-bridge shunt; 0\.4 V VREF targets 10 A hardware current regulation
- Manufacturer Part Number: HoJLR2512\-3W\-2mR\-1%
- Functional Group: H\-Bridge and Actuator
- LCSC Part Number: C2903471
- Manufacturer Name: Milliohm\(毫欧\)

**Pins:**
- 1 [pin 1]
- 2 [pin 2]

### RT1 — [10KF3380](https://flux.ai/lcsc/10kf3380~xm6j.md)

- Manufacturer Name: KUU
- Manufacturer Part Number: KNTC0201/10KF3380
- Functional Group: Battery Protection and Monitoring
- Role Details: 10 kΩ B3380 pack thermistor from BQ76907 TS to BATT\_NEG; BQ76907 internal 20 kΩ bias is enabled by configuration, no external pull\-up
- Role: Sensing \(Shunt\)
- LCSC Part Number: C2916255
- Package or Case Code: RES\-SMD\_L0\.6\-W0\.3
- Part Type: NTC Thermistors
- JLCPCB Part Class: Extended Part

**Pins:**
- 1 [pin 1]
- 2 [pin 2]

### SW1 — [PTS810SJK250SMTRLFS](https://flux.ai/jharwinbarrozo/pts810sjk250smtrlfs~6tl.md)

- Manufacturer Name: C&K
- Functional Group: ESP32 Controller,Programming and Debug
- Manufacturer Part Number: PTS810SJK250SMTRLFS
- LCSC Part Number: C221896
- Datasheet URL: https://datasheet\.lcsc\.com/lcsc/1810121650\_C\-K\-PTS810SJK250SMTRLFS\_C221896\.pdf
- JLCPCB Part Class: Extended Part
- Role Details: Manual BOOT/RESET control
- Part Type: Switch
- Role: User Switch

**Pins:**
- P1 [pin 1]
- P3 [pin 3]

### SW2 — [PTS810SJK250SMTRLFS](https://flux.ai/jharwinbarrozo/pts810sjk250smtrlfs~6tl.md)

- Role Details: Manual BOOT/RESET control
- Manufacturer Name: C&K
- Role: User Switch
- JLCPCB Part Class: Extended Part
- Functional Group: ESP32 Controller,Programming and Debug
- Manufacturer Part Number: PTS810SJK250SMTRLFS
- LCSC Part Number: C221896
- Datasheet URL: https://datasheet\.lcsc\.com/lcsc/1810121650\_C\-K\-PTS810SJK250SMTRLFS\_C221896\.pdf
- Part Type: Switch

**Pins:**
- P1 [pin 1]
- P3 [pin 3]

### U1 — [ESP32\-S3\-MINI\-1\-N8](https://flux.ai/jecstronic/esp32-s3-mini-1-n8~m3d.md)

- Datasheet URL: https://www\.mouser\.com/datasheet/2/891/esp32\_s3\_mini\_1\_mini\_1u\_datasheet\_en\-2997643\.pdf
- Manufacturer Name: Espressif Systems
- License: https://creativecommons\.org/licenses/by/4\.0/
- LCSC Part Number: C2913206
- Role: Main Controller
- Role Details: ESP32\-S3 controller; UART LiDAR, H\-bridge control, USB programming
- Part Type: Module
- Manufacturer Part Number: ESP32\-S3\-MINI\-1\-N8
- Functional Group: ESP32 Controller
- JLCPCB Part Class: Extended Part

**Pins:**
- 3V3 [pin 3]
- EN [pin 45]
- GND [pin 61\_1]
- GND [pin 46]
- GND [pin 1]
- GND [pin 62]
- GND [pin 54]
- GND [pin 43]
- GND [pin 61\_3]
- GND [pin 61\_5]
- GND [pin 58]
- GND [pin 61]
- GND [pin 61\_6]
- GND [pin 59]
- GND [pin 63]
- GND [pin 42]
- GND [pin 61\_8]
- GND [pin 61\_4]
- GND [pin 57]
- GND [pin 61\_7]
- GND [pin 64]
- GND [pin 50]
- GND [pin 56]
- GND [pin 61\_2]
- GND [pin 60]
- GND [pin 47]
- GND [pin 48]
- GND [pin 52]
- GND [pin 2]
- GND [pin 65]
- GND [pin 53]
- GND [pin 51]
- GND [pin 49]
- GND [pin 55]
- IO0 [pin 4]
- IO1 [pin 5]
- IO10 [pin 14]
- IO11 [pin 15]
- IO12 [pin 16]
- IO13 [pin 17]
- IO14 [pin 18]
- IO15 [pin 19]
- IO16 [pin 20]
- IO17 [pin 21]
- IO18 [pin 22]
- IO19 [pin 23]
- IO2 [pin 6]
- IO20 [pin 24]
- IO21 [pin 25]
- IO26 [pin 26]
- IO3 [pin 7]
- IO33 [pin 28]
- IO34 [pin 29]
- IO35 [pin 31]
- IO36 [pin 32]
- IO37 [pin 33]
- IO38 [pin 34]
- IO39 [pin 35]
- IO4 [pin 8]
- IO40 [pin 36]
- IO41 [pin 37]
- IO42 [pin 38]
- IO45 [pin 41]
- IO46 [pin 44]
- IO47 [pin 27]
- IO48 [pin 30]
- IO5 [pin 9]
- IO6 [pin 10]
- IO7 [pin 11]
- IO8 [pin 12]
- IO9 [pin 13]
- RXD0 [pin 40]
- TXD0 [pin 39]

### U2 — [BQ76907RGRR](https://flux.ai/silicon-yard/bq76907rgrr~02.md)

- JLCPCB Part Class: Extended Part
- Datasheet URL: https://www\.ti\.com/lit/ds/symlink/bq76907\.pdf
- Symbol Style: parametric\-v1
- Manufacturer Part Number: BQ76907RGRR
- Software: ESP\-IDF
- LCSC Part Number: C22458649
- Manufacturer Name: Texas Instruments
- Part Type: Integrated Circuit
- Functional Group: Battery Protection and Balancing
- Role: Sensing \(Shunt\)
- Role Details: 2S battery monitor, coulomb counter, thermistor interface, and host\-controlled balancing\. DSG/CHG outputs intentionally unused; U6 provides factory\-autonomous OV/UV/OCD/SCD gate control\. Firmware/NV calibration must use the new 6 mΩ RS1 shunt value; startup does not depend on U2 FET\_ENABLE\.

**Pins:**
- ALERT [pin 14]
- BAT [pin 17]
- CHG [pin 10]
- DSG [pin 9]
- EPAD [pin 21]
- REGOUT [pin 15]
- REGSRC [pin 16]
- SCL [pin 12]
- SDA [pin 13]
- SRN [pin 7]
- SRP [pin 6]
- TS [pin 8]
- VC0 [pin 5]
- VC1 [pin 4]
- VC2 [pin 3]
- VC3 [pin 2]
- VC4 [pin 1]
- VC5 [pin 20]
- VC6 [pin 19]
- VC7 [pin 18]
- VSS [pin 11]

### U3 — [DRV8701PRGER](https://flux.ai/lcsc/drv8701prger~cxj.md)

- Role: H\-Bridge Gate Driver
- Manufacturer Part Number: DRV8701PRGER
- Functional Group: H\-Bridge and Actuator
- JLCPCB Part Class: Extended Part
- Product Info Url: https://lcsc\.com/product\-detail/Motor\-Drivers\_Texas\-Instruments\_DRV8701PRGER\_Texas\-Instruments\-Texas\-Instruments\-DRV8701PRGER\_C114178\.html
- Manufacturer Name: TI\(德州仪器\)
- Role Details: Four\-NMOS H\-bridge gate driver\. RS2=2 mΩ and \~0\.436 V VREF target \~9\.7 A typical chopping\. IDRIVE=33k selects 12\.5/25 mA source/sink\. At VM=8 V high\-side VGS is 5\.5 V minimum; operation near 6 V has reduced gate drive and requires loaded\-pack inhibit/validation\.
- LCSC Part Number: C114178
- Datasheet URL: https://www\.ti\.com/lit/ds/symlink/drv8701\.pdf
- Part Type: Motor Driver ICs
- Package or Case Code: VQFN\-24\_L4\.0\-W4\.0\-P0\.50\-BL\-EP2\.8

**Pins:**
- AVDD [pin 7]
- CPH [pin 3]
- CPL [pin 4]
- DVDD [pin 8]
- GH1 [pin 17]
- GH2 [pin 24]
- GL1 [pin 19]
- GL2 [pin 22]
- GND [pin 5]
- GND [pin 25]
- GND [pin 16]
- IDRIVE [pin 12]
- IN1 [pin 15]
- IN2 [pin 14]
- nFAULT [pin 9]
- nSLEEP [pin 13]
- SH1 [pin 18]
- SH2 [pin 23]
- SN [pin 20]
- SNSOUT [pin 10]
- SO [pin 11]
- SP [pin 21]
- VCP [pin 2]
- VM [pin 1]
- VREF [pin 6]

### U4 — [AP63203WU\-7](https://flux.ai/adrian95/ap63203wu-7~o8a.md)

- LCSC Part Number: C780769
- Manufacturer Part Number: AP63203WU\-7
- Manufacturer Name: Diodes Incorporated
- Datasheet URL: https://www\.diodes\.com/assets/Datasheets/AP63200\-AP63201\-AP63203\-AP63205\.pdf
- Part Type: Integrated Circuit
- Role Details: AP63203 fixed 3\.3 V, 2 A buck; 3V3 net allocated 1\.0 A maximum to cover the \~0\.8 A ESP32\-S3 peak budget with margin\.
- Role: 3\.3V Buck Regulator
- Symbol Style: parametric\-v1
- License: https://creativecommons\.org/licenses/by/4\.0/
- Functional Group: 3V3 Regulator
- JLCPCB Part Class: Extended Part

**Pins:**
- BST [pin 6]
- EN [pin 2]
- FB [pin 1]
- GND [pin 4]
- SW [pin 5]
- VIN [pin 3]

### U5 — [AP63205WU\-7](https://flux.ai/jecstronic/ap63205wu-7~ffd.md)

- Manufacturer Part Number: AP63205WU\-7
- Manufacturer Name: Diodes Incorporated
- Datasheet URL: https://www\.diodes\.com/assets/Datasheets/AP63200\-AP63201\-AP63203\-AP63205\.pdf
- Part Type: Integrated Circuit
- Functional Group: 5V LiDAR Regulator
- JLCPCB Part Class: Extended Part
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role Details: 5 V rail for TF\-Luna 70 mA average, 150 mA peak
- LCSC Part Number: C2071056
- Role: 5V Buck Regulator

**Pins:**
- BST [pin 6]
- EN [pin 2]
- FB [pin 1]
- GND [pin 4]
- SW [pin 5]
- VIN [pin 3]

### U6 — [HY2120\-CB](https://flux.ai/lcsc/hy2120-cb~kvtm.md)

- LCSC Part Number: C116509
- Manufacturer Part Number: HY2120\-CB
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2304140030\_HYCON\-Tech\-HY2120\-CB\_C116509\.pdf
- Role: Protection
- Allow Substitutes: No
- Product Info Url: https://lcsc\.com/product\-detail/Battery\-Protection\-ICs\_HY2120CB\_C116509\.html
- Package or Case Code: SOT\-23\-6\_L2\.9\-W1\.6\-P0\.95\-LS2\.8\-BR
- JLCPCB Part Class: Extended Part
- Role Details: Autonomous 2S HY2120\-CB: 2\.90±0\.08 V per\-cell UV at 25°C \(5\.64–5\.96 V balanced\-pack equivalent, not a pack\-only threshold\); OCD 170–230 mV, 6–14 ms; SCD 0\.6–1\.4 V, 150–400 us\. VSS=BATT\_NEG; CS senses shunt plus cutoff FET path\. Release blocked pending PCB and fault\-turnoff validation\.
- Functional Group: Battery Protection and Balancing
- Part Type: Battery Management ICs
- Manufacturer Name: HYCON\(宏康\)

**Pins:**
- CS [pin 3]
- OC [pin 2]
- OD [pin 1]
- VC [pin 4]
- VDD [pin 5]
- VSS [pin 6]

*The full schematic, PCB layout, bill of materials, and interactive design are available at [https://flux\.ai/itssam/esp32\-s3\-lidar\-lock\-controller\-final\~14](https://flux.ai/itssam/esp32-s3-lidar-lock-controller-final~14).*

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*Generated from [https://flux\.ai/itssam/esp32\-s3\-lidar\-lock\-controller\-final\~14](https://flux.ai/itssam/esp32-s3-lidar-lock-controller-final~14)*