# ESP32\-S3 Expandable Audio Controller

## Description

ESP32\-S3 N16R8\-based general\-purpose controller with USB, audio, battery support, expansion interfaces, and JLCPCB SMT assembly\-oriented component selection\.

## Project Details

- **Owner:** kallurik
- **Created:** 9/6/2026
- **Last Updated:** 9/6/2026
- **Visibility:** Public

## Key Components

### CN1 — [BM04B\-SRSS\-TB\(LF\)\(SN\)](https://flux.ai/lcsc/bm04b-srss-tblfsn~828q.md)

- Part Type: Wire To Board / Wire To Wire Connector
- Product Info Url: https://lcsc\.com/product\-detail/Others\_JST\-Sales\-America\_\_JST\-Sales\-America\-BM04B\-SRSS\-TB\-LF\-SN\_C160390\.html
- Positions: 4
- Manufacturer Name: JST
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2304140030\_JST\-BM04B\-SRSS\-TB\-LF\-SN\_C160390\.pdf
- Package or Case Code: CONN\-SMD\_BM04B\-SRSS\-TB
- Rows: 1
- Manufacturer Part Number: BM04B\-SRSS\-TB\(LF\)\(SN\)
- LCSC Part Number: C160390
- Role: I2C Expansion Connector
- Role Details: 3V3, GND, SDA, SCL; one shared pull\-up pair on board
- Pitch: 2mm
- Functional Group: I2C Expansion
- Gender: Female
- JLCPCB Part Class: Extended Part
- Connector Type: Board\-to\-board Connector

**Pins:**
- 0 [pin 0]
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]

### D1 — [SS14](https://flux.ai/lcsc/ss14~t679.md)

- Forward Voltage: 0\.45V\-0\.50V
- Role Details: Across external load supply and switched drain; fit for inductive loads
- Max Reverse Voltage: 40V
- Package or Case Code: SMA\_L4\.3\-W2\.7\-LS5\.1\-RD
- Manufacturer Part Number: SS14
- License: https://creativecommons\.org/licenses/by/4\.0/
- Datasheet URL: https://www\.lcsc\.com/datasheet/C2766061\.pdf?spm=wm\.sxq\.inf\.ggs&lcsc\_vid=FlkNBAIDRQULVABfFAVZBgZVFVZYBgZSQ1NeBVIFQlExVlNeR1JfUFRQQFlfUzsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D
- LCSC Part Number: C2766061
- Diode Type: Schottky Diode
- Functional Group: Low\-Side Outputs
- Manufacturer Name: WPMtek\(维攀\)
- JLCPCB Part Class: Extended Part
- Part Type: Schottky Barrier Diodes \(SBD\)
- Role: Flyback Diode

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

### D2 — [SS14](https://flux.ai/lcsc/ss14~t679.md)

- Forward Voltage: 0\.45V\-0\.50V
- Role: Flyback Diode
- Max Reverse Voltage: 40V
- Package or Case Code: SMA\_L4\.3\-W2\.7\-LS5\.1\-RD
- Manufacturer Part Number: SS14
- License: https://creativecommons\.org/licenses/by/4\.0/
- Datasheet URL: https://www\.lcsc\.com/datasheet/C2766061\.pdf?spm=wm\.sxq\.inf\.ggs&lcsc\_vid=FlkNBAIDRQULVABfFAVZBgZVFVZYBgZSQ1NeBVIFQlExVlNeR1JfUFRQQFlfUzsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D
- Role Details: Across external load supply and switched drain; fit for inductive loads
- LCSC Part Number: C2766061
- Diode Type: Schottky Diode
- Manufacturer Name: WPMtek\(维攀\)
- Functional Group: Low\-Side Outputs
- JLCPCB Part Class: Extended Part
- Part Type: Schottky Barrier Diodes \(SBD\)

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

### D3 — [SS14](https://flux.ai/lcsc/ss14~t679.md)

- Forward Voltage: 0\.45V\-0\.50V
- Role: Flyback Diode
- Max Reverse Voltage: 40V
- Package or Case Code: SMA\_L4\.3\-W2\.7\-LS5\.1\-RD
- Manufacturer Part Number: SS14
- Functional Group: Low\-Side Outputs
- License: https://creativecommons\.org/licenses/by/4\.0/
- Datasheet URL: https://www\.lcsc\.com/datasheet/C2766061\.pdf?spm=wm\.sxq\.inf\.ggs&lcsc\_vid=FlkNBAIDRQULVABfFAVZBgZVFVZYBgZSQ1NeBVIFQlExVlNeR1JfUFRQQFlfUzsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D
- LCSC Part Number: C2766061
- Diode Type: Schottky Diode
- Manufacturer Name: WPMtek\(维攀\)
- Role Details: Across external load supply and switched drain; fit for inductive loads
- JLCPCB Part Class: Extended Part
- Part Type: Schottky Barrier Diodes \(SBD\)

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

### D4 — [SS14](https://flux.ai/lcsc/ss14~t679.md)

- Forward Voltage: 0\.45V\-0\.50V
- Max Reverse Voltage: 40V
- Package or Case Code: SMA\_L4\.3\-W2\.7\-LS5\.1\-RD
- Role Details: Across external load supply and switched drain; fit for inductive loads
- Role: Flyback Diode
- Manufacturer Part Number: SS14
- License: https://creativecommons\.org/licenses/by/4\.0/
- Datasheet URL: https://www\.lcsc\.com/datasheet/C2766061\.pdf?spm=wm\.sxq\.inf\.ggs&lcsc\_vid=FlkNBAIDRQULVABfFAVZBgZVFVZYBgZSQ1NeBVIFQlExVlNeR1JfUFRQQFlfUzsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D
- LCSC Part Number: C2766061
- Diode Type: Schottky Diode
- Manufacturer Name: WPMtek\(维攀\)
- Functional Group: Low\-Side Outputs
- JLCPCB Part Class: Extended Part
- Part Type: Schottky Barrier Diodes \(SBD\)

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

### D5 — [KPT\-1608LVZGCK](https://flux.ai/lcsc/kpt-1608lvzgck~90os.md)

- Role: Status LED
- Functional Group: ESP32\-S3 Core
- Role Details: Green status LED driven by safe GPIO through series resistor
- LCSC Part Number: C598356
- Manufacturer Name: Kingbright
- Manufacturer Part Number: KPT\-1608LVZGCK
- JLCPCB Part Class: Extended Part
- Package or Case Code: LED0603\_GREEN

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

### F1 — [1206L200PR](https://flux.ai/lcsc/1206l200pr~xa43.md)

- Package or Case Code: F1206
- Manufacturer Part Number: 1206L200PR
- Role: Protection
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2304140030\_Littelfuse\-1206L200PR\_C151163\.pdf
- Manufacturer Name: Littelfuse\(美国力特\)
- LCSC Part Number: C151163
- Role Details: 2 A hold PPTC on USB VBUS; actual draw limited by source advertisement and firmware configuration
- Part Type: Resettable Fuses
- JLCPCB Part Class: Extended Part
- Product Info Url: https://lcsc\.com/product\-detail/Surface\-Mount\-Fuses\_Littelfuse\_1206L200PR\_750mA\-8V\-Self\-recovery\_C151163\.html
- Functional Group: USB\-C Input and Native USB

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

### J1 — [USB4105\-GF\-A\-060](https://flux.ai/adrian95/usb4105-gf-a-060~u0.md)

- Datasheet URL: https://gct\.co/files/specs/usb4105\-spec\.pdf
- Manufacturer Part Number: USB4105\-GF\-A\-060
- Part Type: Connector
- Role Details: Native ESP32\-S3 USB programming/data and protected 5 V input
- Role: USB\-C Device Port
- Manufacturer Name: GCT
- License: https://creativecommons\.org/licenses/by/4\.0/
- Symbol Style: parametric\-v1
- Functional Group: USB\-C Input and Native USB

**Pins:**
- CC1 [pin A5]
- CC2 [pin B5]
- DN1 [pin A7]
- DN2 [pin B7]
- DP1 [pin A6]
- DP2 [pin B6]
- GND [pin B1\_A12]
- GND [pin A1\_B12]
- SBU1 [pin A8]
- SBU2 [pin B8]
- SHELL\_GND [pin SH1]
- SHELL\_GND [pin SH3]
- SHELL\_GND [pin SH2]
- SHELL\_GND [pin SH4]
- VBUS [pin B4\_A9]
- VBUS [pin A4\_B9]

### J10 — [BM05B\-SRSS\-TB\(LF\)\(SN\)](https://flux.ai/lcsc/bm05b-srss-tblfsn~bguy.md)

- Manufacturer Name: JST
- Functional Group: UART Expansion
- LCSC Part Number: C160391
- Package or Case Code: CONN\-SMD\-5P\-P1\.00\_BM05B\-SRSS\-TB\-LF\-SN
- Role Details: 3V3, GND, UART\_TX, UART\_RX, optional CTS
- Part Type: Wire To Board / Wire To Wire Connector
- JLCPCB Part Class: Extended Part
- Role: UART Connector
- Product Info Url: https://lcsc\.com/product\-detail/Others\_JST\-Sales\-America\_\_JST\-Sales\-America\-BM05B\-SRSS\-TB\-LF\-SN\_C160391\.html
- Datasheet URL: https://lcsc\.com/product\-detail/Others\_JST\-Sales\-America\_\_JST\-Sales\-America\-BM05B\-SRSS\-TB\-LF\-SN\_C160391\.html
- Manufacturer Part Number: BM05B\-SRSS\-TB\(LF\)\(SN\)

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

### J11 — [BM05B\-SRSS\-TB\(LF\)\(SN\)](https://flux.ai/lcsc/bm05b-srss-tblfsn~bguy.md)

- Manufacturer Name: JST
- LCSC Part Number: C160391
- Package or Case Code: CONN\-SMD\-5P\-P1\.00\_BM05B\-SRSS\-TB\-LF\-SN
- Role: SPI Connector
- Part Type: Wire To Board / Wire To Wire Connector
- JLCPCB Part Class: Extended Part
- Product Info Url: https://lcsc\.com/product\-detail/Others\_JST\-Sales\-America\_\_JST\-Sales\-America\-BM05B\-SRSS\-TB\-LF\-SN\_C160391\.html
- Functional Group: SPI Expansion
- Datasheet URL: https://lcsc\.com/product\-detail/Others\_JST\-Sales\-America\_\_JST\-Sales\-America\-BM05B\-SRSS\-TB\-LF\-SN\_C160391\.html
- Role Details: GND, SCK, MOSI, MISO, CS; 3\.3 V available on adjacent expansion connector
- Manufacturer Part Number: BM05B\-SRSS\-TB\(LF\)\(SN\)

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

### J12 — [BM05B\-SRSS\-TB\(LF\)\(SN\)](https://flux.ai/lcsc/bm05b-srss-tblfsn~bguy.md)

- Manufacturer Name: JST
- LCSC Part Number: C160391
- Package or Case Code: CONN\-SMD\-5P\-P1\.00\_BM05B\-SRSS\-TB\-LF\-SN
- Role Details: Mixed safe GPIO/ADC/PWM plus 3V3 and GND; rail current budget shared
- Role: GPIO Expansion Connector
- Part Type: Wire To Board / Wire To Wire Connector
- JLCPCB Part Class: Extended Part
- Functional Group: GPIO Expansion
- Product Info Url: https://lcsc\.com/product\-detail/Others\_JST\-Sales\-America\_\_JST\-Sales\-America\-BM05B\-SRSS\-TB\-LF\-SN\_C160391\.html
- Datasheet URL: https://lcsc\.com/product\-detail/Others\_JST\-Sales\-America\_\_JST\-Sales\-America\-BM05B\-SRSS\-TB\-LF\-SN\_C160391\.html
- Manufacturer Part Number: BM05B\-SRSS\-TB\(LF\)\(SN\)

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

### J15 — [BM03B\-SRSS\-TB\(LF\)\(SN\)](https://flux.ai/lcsc/bm03b-srss-tblfsn~a391.md)

- Manufacturer Name: JST
- Manufacturer Part Number: BM03B\-SRSS\-TB\(LF\)\(SN\)
- JLCPCB Part Class: Extended Part
- Part Type: Wire To Board / Wire To Wire Connector
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2304140030\_JST\-BM03B\-SRSS\-TB\-LF\-SN\_C160389\.pdf
- Role: Low\-Side Output Connector
- Product Info Url: https://lcsc\.com/product\-detail/Others\_JST\-Sales\-America\_\_JST\-Sales\-America\-BM03B\-SRSS\-TB\-LF\-SN\_C160389\.html
- Functional Group: Low\-Side Outputs
- Package or Case Code: CONN\-SMD\-3P\-P1\.00\_BM03B\-SRSS\-TB\-LF\-SN
- Role Details: VLOAD/SYS, switched OUT, GND; current limited by connector, MOSFET and rail budget
- LCSC Part Number: C160389

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

### J2 — [BM02B\-SRSS\-TBT\(LF\)\(SN\)](https://flux.ai/lcsc/bm02b-srss-tbtlfsn~heep.md)

- Manufacturer Part Number: BM02B\-SRSS\-TBT\(LF\)\(SN\)
- LCSC Part Number: C495537
- JLCPCB Part Class: Extended Part
- Package or Case Code: CONN\-SMD\_BM02B\-SRSS\-TBT\-LF\-SN
- Role: Power Input Connector
- Role Details: EXT\_5V and GND, JST SH 1\.0 mm
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2304140030\_JST\-BM02B\-SRSS\-TBT\-LF\-SN\_C495537\.pdf
- Product Info Url: https://lcsc\.com/product\-detail/New\-Arrivals\_JST\-Sales\-America\-BM02B\-SRSS\-TBT\-LF\-SN\_C495537\.html
- Functional Group: 5V Source Selection
- Manufacturer Name: JST
- Part Type: Wire To Board / Wire To Wire Connector

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

### J3 — [BM02B\-SRSS\-TBT\(LF\)\(SN\)](https://flux.ai/lcsc/bm02b-srss-tbtlfsn~heep.md)

- Manufacturer Part Number: BM02B\-SRSS\-TBT\(LF\)\(SN\)
- LCSC Part Number: C495537
- JLCPCB Part Class: Extended Part
- Package or Case Code: CONN\-SMD\_BM02B\-SRSS\-TBT\-LF\-SN
- Functional Group: Battery Protection
- Role: Battery Connector
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2304140030\_JST\-BM02B\-SRSS\-TBT\-LF\-SN\_C495537\.pdf
- Product Info Url: https://lcsc\.com/product\-detail/New\-Arrivals\_JST\-Sales\-America\-BM02B\-SRSS\-TBT\-LF\-SN\_C495537\.html
- Role Details: BAT\+ and BAT\-, JST SH 1\.0 mm; bare 1S cell permitted because onboard protection is fitted
- Manufacturer Name: JST
- Part Type: Wire To Board / Wire To Wire Connector

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

### J4 — [BM05B\-SRSS\-TB\(LF\)\(SN\)](https://flux.ai/lcsc/bm05b-srss-tblfsn~bguy.md)

- Manufacturer Name: JST
- LCSC Part Number: C160391
- Package or Case Code: CONN\-SMD\-5P\-P1\.00\_BM05B\-SRSS\-TB\-LF\-SN
- Role: I2S Microphone Connector
- Part Type: Wire To Board / Wire To Wire Connector
- JLCPCB Part Class: Extended Part
- Product Info Url: https://lcsc\.com/product\-detail/Others\_JST\-Sales\-America\_\_JST\-Sales\-America\-BM05B\-SRSS\-TB\-LF\-SN\_C160391\.html
- Functional Group: External I2S Microphone
- Datasheet URL: https://lcsc\.com/product\-detail/Others\_JST\-Sales\-America\_\_JST\-Sales\-America\-BM05B\-SRSS\-TB\-LF\-SN\_C160391\.html
- Role Details: MIC\_3V3, MIC\_GND, MIC\_BCLK, MIC\_WS, MIC\_DATA
- Manufacturer Part Number: BM05B\-SRSS\-TB\(LF\)\(SN\)

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

### J5 — [BM02B\-SRSS\-TBT\(LF\)\(SN\)](https://flux.ai/lcsc/bm02b-srss-tbtlfsn~heep.md)

- Manufacturer Part Number: BM02B\-SRSS\-TBT\(LF\)\(SN\)
- LCSC Part Number: C495537
- JLCPCB Part Class: Extended Part
- Package or Case Code: CONN\-SMD\_BM02B\-SRSS\-TBT\-LF\-SN
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2304140030\_JST\-BM02B\-SRSS\-TBT\-LF\-SN\_C495537\.pdf
- Functional Group: I2S Speaker Amplifier
- Product Info Url: https://lcsc\.com/product\-detail/New\-Arrivals\_JST\-Sales\-America\-BM02B\-SRSS\-TBT\-LF\-SN\_C495537\.html
- Manufacturer Name: JST
- Role: Speaker Connector
- Role Details: Differential SPK\+ and SPK\- output; do not ground either lead
- Part Type: Wire To Board / Wire To Wire Connector

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

### J6 — [BM02B\-SRSS\-TBT\(LF\)\(SN\)](https://flux.ai/lcsc/bm02b-srss-tbtlfsn~heep.md)

- Manufacturer Part Number: BM02B\-SRSS\-TBT\(LF\)\(SN\)
- LCSC Part Number: C495537
- Role Details: LED\+ and PWM low\-side LED\-; LED current resistor populated to match LED Vf/current
- JLCPCB Part Class: Extended Part
- Package or Case Code: CONN\-SMD\_BM02B\-SRSS\-TBT\-LF\-SN
- Role: LED Output Connector
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2304140030\_JST\-BM02B\-SRSS\-TBT\-LF\-SN\_C495537\.pdf
- Product Info Url: https://lcsc\.com/product\-detail/New\-Arrivals\_JST\-Sales\-America\-BM02B\-SRSS\-TBT\-LF\-SN\_C495537\.html
- Manufacturer Name: JST
- Functional Group: High Power LED Output
- Part Type: Wire To Board / Wire To Wire Connector

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

### J7 — [BM03B\-SRSS\-TB\(LF\)\(SN\)](https://flux.ai/lcsc/bm03b-srss-tblfsn~a391.md)

- Manufacturer Name: JST
- Manufacturer Part Number: BM03B\-SRSS\-TB\(LF\)\(SN\)
- JLCPCB Part Class: Extended Part
- Part Type: Wire To Board / Wire To Wire Connector
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2304140030\_JST\-BM03B\-SRSS\-TB\-LF\-SN\_C160389\.pdf
- Product Info Url: https://lcsc\.com/product\-detail/Others\_JST\-Sales\-America\_\_JST\-Sales\-America\-BM03B\-SRSS\-TB\-LF\-SN\_C160389\.html
- Package or Case Code: CONN\-SMD\-3P\-P1\.00\_BM03B\-SRSS\-TB\-LF\-SN
- Role: Touch Connector
- Functional Group: Touch Interface
- LCSC Part Number: C160389
- Role Details: TOUCH1, TOUCH2, GND

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

### J8 — [BM04B\-SRSS\-TB\(LF\)\(SN\)](https://flux.ai/lcsc/bm04b-srss-tblfsn~828q.md)

- Part Type: Wire To Board / Wire To Wire Connector
- Product Info Url: https://lcsc\.com/product\-detail/Others\_JST\-Sales\-America\_\_JST\-Sales\-America\-BM04B\-SRSS\-TB\-LF\-SN\_C160390\.html
- Positions: 4
- Manufacturer Name: JST
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2304140030\_JST\-BM04B\-SRSS\-TB\-LF\-SN\_C160390\.pdf
- Package or Case Code: CONN\-SMD\_BM04B\-SRSS\-TB
- Role: I2C Expansion Connector
- Rows: 1
- Manufacturer Part Number: BM04B\-SRSS\-TB\(LF\)\(SN\)
- LCSC Part Number: C160390
- Role Details: 3V3, GND, SDA, SCL; one shared pull\-up pair on board
- Pitch: 2mm
- Functional Group: I2C Expansion
- Gender: Female
- JLCPCB Part Class: Extended Part
- Connector Type: Board\-to\-board Connector

**Pins:**
- 0 [pin 0]
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]

### Q1 — [FS8205A](https://flux.ai/adrian95/fs8205a.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Role Details: Dual N\-MOSFET controlled by DW01A
- Part Type: Dual N\-channel power MOSFET
- Role: Battery Protection Switch
- Functional Group: Battery Protection
- Symbol Style: parametric\-v1
- Datasheet URL: https://www\.snapeda\.com/parts/FS8205A/Fortune%20Semiconductor/datasheet/
- Manufacturer Part Number: FS8205A
- Manufacturer Name: Fortune

**Pins:**
- D [pin 1]
- D [pin 8]
- G1 [pin 4]
- G2 [pin 5]
- S1 [pin 3]
- S1 [pin 2]
- S2 [pin 6]
- S2 [pin 7]

### Q2 — [AO3400A](https://flux.ai/lcsc/ao3400a~e5y2.md)

- Package or Case Code: SOT\-23\-3\_L2\.9\-W1\.3\-P1\.90\-LS2\.4\-BR
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2410010301\_UMW\-Youtai\-Semiconductor\-Co\-\-\-Ltd\-\-AO3400A\_C347475\.pdf
- Continuous Drain Current: 5\.7A
- Part Type: MOSFETs
- Drain to Source Voltage: 30V
- Power: 1\.4W
- Transistor Type: N\-channel MOSFET
- Functional Group: Low\-Side Outputs
- Operating Temperature: \-55 \~ \+150℃
- Manufacturer Part Number: AO3400A
- Manufacturer Name: UMW\(友台半导体\)
- Role Details: Logic\-level N\-MOSFET controlled by ESP32 through gate resistor with pulldown
- JLCPCB Part Class: Extended Part
- Product Info Url: https://lcsc\.com/product\-detail/Others\_Youtai\-Semiconductor\-Co\-Ltd\-AO3400A\-5\-8A\_C347475\.html
- Role: Low\-Side MOSFET
- LCSC Part Number: C347475

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

### Q3 — [AO3400A](https://flux.ai/lcsc/ao3400a~e5y2.md)

- Package or Case Code: SOT\-23\-3\_L2\.9\-W1\.3\-P1\.90\-LS2\.4\-BR
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2410010301\_UMW\-Youtai\-Semiconductor\-Co\-\-\-Ltd\-\-AO3400A\_C347475\.pdf
- Continuous Drain Current: 5\.7A
- Part Type: MOSFETs
- Drain to Source Voltage: 30V
- Power: 1\.4W
- Functional Group: Low\-Side Outputs
- Transistor Type: N\-channel MOSFET
- Operating Temperature: \-55 \~ \+150℃
- Role: Low\-Side MOSFET
- Manufacturer Part Number: AO3400A
- Manufacturer Name: UMW\(友台半导体\)
- Role Details: Logic\-level N\-MOSFET controlled by ESP32 through gate resistor with pulldown
- JLCPCB Part Class: Extended Part
- Product Info Url: https://lcsc\.com/product\-detail/Others\_Youtai\-Semiconductor\-Co\-Ltd\-AO3400A\-5\-8A\_C347475\.html
- LCSC Part Number: C347475

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

### Q4 — [AO3400A](https://flux.ai/lcsc/ao3400a~e5y2.md)

- Package or Case Code: SOT\-23\-3\_L2\.9\-W1\.3\-P1\.90\-LS2\.4\-BR
- Role: Low\-Side MOSFET
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2410010301\_UMW\-Youtai\-Semiconductor\-Co\-\-\-Ltd\-\-AO3400A\_C347475\.pdf
- Continuous Drain Current: 5\.7A
- Part Type: MOSFETs
- Drain to Source Voltage: 30V
- Role Details: Logic\-level N\-MOSFET controlled by ESP32 through gate resistor with pulldown
- Power: 1\.4W
- Transistor Type: N\-channel MOSFET
- Operating Temperature: \-55 \~ \+150℃
- Manufacturer Part Number: AO3400A
- Functional Group: Low\-Side Outputs
- Manufacturer Name: UMW\(友台半导体\)
- JLCPCB Part Class: Extended Part
- Product Info Url: https://lcsc\.com/product\-detail/Others\_Youtai\-Semiconductor\-Co\-Ltd\-AO3400A\-5\-8A\_C347475\.html
- LCSC Part Number: C347475

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

### Q5 — [AO3400A](https://flux.ai/lcsc/ao3400a~e5y2.md)

- Package or Case Code: SOT\-23\-3\_L2\.9\-W1\.3\-P1\.90\-LS2\.4\-BR
- Functional Group: Low\-Side Outputs
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2410010301\_UMW\-Youtai\-Semiconductor\-Co\-\-\-Ltd\-\-AO3400A\_C347475\.pdf
- Continuous Drain Current: 5\.7A
- Part Type: MOSFETs
- Drain to Source Voltage: 30V
- Power: 1\.4W
- Role Details: Logic\-level N\-MOSFET controlled by ESP32 through gate resistor with pulldown
- Transistor Type: N\-channel MOSFET
- Role: Low\-Side MOSFET
- Operating Temperature: \-55 \~ \+150℃
- Manufacturer Part Number: AO3400A
- Manufacturer Name: UMW\(友台半导体\)
- JLCPCB Part Class: Extended Part
- Product Info Url: https://lcsc\.com/product\-detail/Others\_Youtai\-Semiconductor\-Co\-Ltd\-AO3400A\-5\-8A\_C347475\.html
- LCSC Part Number: C347475

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

### Q6 — [AO3400A](https://flux.ai/lcsc/ao3400a~e5y2.md)

- Package or Case Code: SOT\-23\-3\_L2\.9\-W1\.3\-P1\.90\-LS2\.4\-BR
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2410010301\_UMW\-Youtai\-Semiconductor\-Co\-\-\-Ltd\-\-AO3400A\_C347475\.pdf
- Functional Group: Low\-Side Outputs
- Continuous Drain Current: 5\.7A
- Part Type: MOSFETs
- Drain to Source Voltage: 30V
- Role: Low\-Side MOSFET
- Power: 1\.4W
- Transistor Type: N\-channel MOSFET
- Operating Temperature: \-55 \~ \+150℃
- Manufacturer Part Number: AO3400A
- Manufacturer Name: UMW\(友台半导体\)
- JLCPCB Part Class: Extended Part
- Role Details: Logic\-level N\-MOSFET controlled by ESP32 through gate resistor with pulldown
- Product Info Url: https://lcsc\.com/product\-detail/Others\_Youtai\-Semiconductor\-Co\-Ltd\-AO3400A\-5\-8A\_C347475\.html
- LCSC Part Number: C347475

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

### SW1 — [GT\-TC034A\-H018\-L1](https://flux.ai/lcsc/gt-tc034a-h018-l1~udf.md)

- Functional Group: ESP32\-S3 Core
- Manufacturer Name: G\-Switch\(品赞\)
- Manufacturer Part Number: GT\-TC034A\-H018\-L1
- Part Type: Tactile Switches
- Package or Case Code: SW\-SMD\_4P\-L3\.6\-W3\.0\-P1\.50\-LS4\.7
- JLCPCB Part Class: Extended Part
- Role Details: RESET or BOOT strap button to ground
- Role: Momentary Button
- LCSC Part Number: C843659

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

### SW2 — [GT\-TC034A\-H018\-L1](https://flux.ai/lcsc/gt-tc034a-h018-l1~udf.md)

- Role Details: RESET or BOOT strap button to ground
- Role: Momentary Button
- Manufacturer Name: G\-Switch\(品赞\)
- Manufacturer Part Number: GT\-TC034A\-H018\-L1
- Part Type: Tactile Switches
- Package or Case Code: SW\-SMD\_4P\-L3\.6\-W3\.0\-P1\.50\-LS4\.7
- JLCPCB Part Class: Extended Part
- LCSC Part Number: C843659
- Functional Group: ESP32\-S3 Core

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

### U1 — [TPS2121RUXR](https://flux.ai/lcsc/tps2121ruxr~qidv.md)

- Manufacturer Part Number: TPS2121RUXR
- Role: Power Multiplexer
- Product Info Url: https://lcsc\.com/product\-detail/New\-Arrivals\_Texas\-Instruments\-Texas\-Instruments\-TPS2121RUXR\_C485916\.html
- Role Details: Selects/ORs protected USB 5 V and EXT\_5V; sized for approximately 2 A system input
- Package or Case Code: VQFN\-HR\-12\_L2\.5\-W2\.0\-P0\.50\-BL
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2001181534\_Texas\-Instruments\-TPS2121RUXR\_C485916\.pdf
- Functional Group: 5V Source Selection
- JLCPCB Part Class: Extended Part
- Part Type: Battery Management ICs
- LCSC Part Number: C485916
- Manufacturer Name: TI\(德州仪器\)

**Pins:**
- CP2 [pin 3]
- GND [pin 12]
- ILM [pin 10]
- IN1 [pin 7]
- IN2 [pin 2]
- OUT [pin 1]
- OUT [pin 8]
- OV1 [pin 5]
- OV2 [pin 4]
- PR1 [pin 6]
- SS [pin 11]
- ST [pin 9]

### U10 — [BM03B\-SRSS\-TB\(LF\)\(SN\)](https://flux.ai/lcsc/bm03b-srss-tblfsn~a391.md)

- Manufacturer Name: JST
- Role Details: VLOAD/SYS, switched OUT, GND; current limited by connector, MOSFET and rail budget
- Manufacturer Part Number: BM03B\-SRSS\-TB\(LF\)\(SN\)
- JLCPCB Part Class: Extended Part
- Part Type: Wire To Board / Wire To Wire Connector
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2304140030\_JST\-BM03B\-SRSS\-TB\-LF\-SN\_C160389\.pdf
- Product Info Url: https://lcsc\.com/product\-detail/Others\_JST\-Sales\-America\_\_JST\-Sales\-America\-BM03B\-SRSS\-TB\-LF\-SN\_C160389\.html
- Package or Case Code: CONN\-SMD\-3P\-P1\.00\_BM03B\-SRSS\-TB\-LF\-SN
- Role: Low\-Side Output Connector
- Functional Group: Low\-Side Outputs
- LCSC Part Number: C160389

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

### U11 — [BM03B\-SRSS\-TB\(LF\)\(SN\)](https://flux.ai/lcsc/bm03b-srss-tblfsn~a391.md)

- Manufacturer Name: JST
- Manufacturer Part Number: BM03B\-SRSS\-TB\(LF\)\(SN\)
- JLCPCB Part Class: Extended Part
- Part Type: Wire To Board / Wire To Wire Connector
- Role: Low\-Side Output Connector
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2304140030\_JST\-BM03B\-SRSS\-TB\-LF\-SN\_C160389\.pdf
- Product Info Url: https://lcsc\.com/product\-detail/Others\_JST\-Sales\-America\_\_JST\-Sales\-America\-BM03B\-SRSS\-TB\-LF\-SN\_C160389\.html
- Functional Group: Low\-Side Outputs
- Package or Case Code: CONN\-SMD\-3P\-P1\.00\_BM03B\-SRSS\-TB\-LF\-SN
- Role Details: VLOAD/SYS, switched OUT, GND; current limited by connector, MOSFET and rail budget
- LCSC Part Number: C160389

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

### U12 — [BM03B\-SRSS\-TB\(LF\)\(SN\)](https://flux.ai/lcsc/bm03b-srss-tblfsn~a391.md)

- Manufacturer Name: JST
- Manufacturer Part Number: BM03B\-SRSS\-TB\(LF\)\(SN\)
- JLCPCB Part Class: Extended Part
- Part Type: Wire To Board / Wire To Wire Connector
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2304140030\_JST\-BM03B\-SRSS\-TB\-LF\-SN\_C160389\.pdf
- Product Info Url: https://lcsc\.com/product\-detail/Others\_JST\-Sales\-America\_\_JST\-Sales\-America\-BM03B\-SRSS\-TB\-LF\-SN\_C160389\.html
- Role Details: VLOAD/SYS, switched OUT, GND; current limited by connector, MOSFET and rail budget
- Package or Case Code: CONN\-SMD\-3P\-P1\.00\_BM03B\-SRSS\-TB\-LF\-SN
- Role: Low\-Side Output Connector
- Functional Group: Low\-Side Outputs
- LCSC Part Number: C160389

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

### U2 — [BQ25895RTWT](https://flux.ai/lcsc/bq25895rtwt~paja.md)

- Datasheet URL: https://www\.ti\.com/general/docs/suppproductinfo\.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww\.ti\.com%2Flit%2Fgpn%2Fbq25895
- Part Type: Battery Management ICs
- Manufacturer Part Number: BQ25895RTWT
- Manufacturer Name: TI\(德州仪器\)
- Package or Case Code: WQFN\-24\_L4\.0\-W4\.0\-P0\.50\-TL\-EP2\.7
- Functional Group: Battery Charger and Power Path
- Symbol Style: parametric\-v1
- Role Details: 1S switch\-mode charger; configured conservatively near 1\.5 A default with firmware allowing up to 2 A only after thermal/source validation
- LCSC Part Number: C2861263
- Role: Battery Charger Power Path
- JLCPCB Part Class: Extended Part

**Pins:**
- \~\{CE\} [pin 9]
- \~\{QON\} [pin 12]
- BAT [pin 13]
- BAT [pin 14]
- BTST [pin 21]
- D– [pin 3]
- D\+ [pin 2]
- DSEL [pin 24]
- EP [pin 25]
- ILIM [pin 10]
- INT [pin 7]
- OTG [pin 8]
- PGND [pin 17]
- PGND [pin 18]
- PMID [pin 23]
- REGN [pin 22]
- SCL [pin 5]
- SDA [pin 6]
- STAT [pin 4]
- SW [pin 20]
- SW [pin 19]
- SYS [pin 15]
- SYS [pin 16]
- TS [pin 11]
- VBUS [pin 1]

### U3 — [DW01A](https://flux.ai/lcsc/dw01a~3xpq.md)

- JLCPCB Part Class: Extended Part
- Package or Case Code: SOT\-23\-6\_L2\.9\-W1\.6\-P0\.95\-LS2\.8\-BL
- Role: Battery Protection
- Datasheet URL: https://www\.lcsc\.com/datasheet/C2927799\.pdf?spm=wm\.sxq\.inf\.ggs&lcsc\_vid=FlkNBAIDRQULVABfFAVZBgZVFVZYBgZSQ1NeBVIFQlExVlNRTlhdVFdSQ1lZVjsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D
- LCSC Part Number: C2927799
- Role Details: Independent hardware protection for attached bare 1S cell
- Manufacturer Part Number: DW01A
- Functional Group: Battery Protection
- Part Type: Battery Management ICs
- Manufacturer Name: YONGYUTAI\(永裕泰\)
- Symbol Style: parametric\-v1

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

### U4 — [TPS63070RNMR](https://flux.ai/lcsc/tps63070rnmr~bg45.md)

- JLCPCB Part Class: Extended Part
- LCSC Part Number: C109322
- Max Input Voltage: 16V
- Role Details: Supplies 3\.3 V rail; design target 1\.2 A continuous and approximately 1\.5 A peak
- Output Type: Adjustable
- Part Type: DC\-DC Converters
- Manufacturer Name: TI\(德州仪器\)
- Operating Temperature: \-40°C \~ 125°C \(TJ\)
- Role: 3\.3V Buck\-Boost Regulator
- Product Info Url: https://lcsc\.com/product\-detail/DC\-DC\-Converters\_TI\_TPS63070RNMR\_TPS63070RNMR\_C109322\.html
- Current Output: 2A
- Functional Group: 3\.3V Buck\-Boost
- Package or Case Code: VQFN\-HR\-15\_L3\.0\-W2\.5\-P0\.50\-BL\_TPS63070RNMR
- Manufacturer Part Number: TPS63070RNMR
- Topology: Buck\-Boost
- Max Voltage Output: 9V
- Datasheet URL: https://www\.lcsc\.com/datasheet/lcsc\_datasheet\_2302221930\_Texas\-Instruments\-TPS63070RNMR\_C109322\.pdf
- Frequency: 2\.4MHz

**Pins:**
- EN [pin 14]
- FB [pin 5]
- FB2 [pin 6]
- GND [pin 4]
- L1 [pin 11]
- L2 [pin 9]
- PG [pin 2]
- PGND [pin 10]
- PS/SYNC [pin 1]
- Vaux [pin 3]
- Vin [pin 12]
- Vin [pin 13]
- Vout [pin 8]
- Vout [pin 7]
- Vsel [pin 15]

### U5 — [ESP32\-S3\-WROOM\-1\-N16R8](https://flux.ai/lcsc/esp32-s3-wroom-1-n16r8~s9kh.md)

- Role Details: Exact N16R8 module; native USB, I2S audio, expansion and control
- Manufacturer Part Number: ESP32\-S3\-WROOM\-1\-N16R8
- Package or Case Code: WIRELM\-SMD\_ESP32\-S3\-WROOM\-1
- JLCPCB Part Class: Extended Part
- Frequency: 2\.4GHz
- Operating Temperature: \-40°C \~ 65°C \(TA\)
- Datasheet URL: https://www\.lcsc\.com/datasheet/C2913202\.pdf?spm=wm\.sxq\.inf\.ggs&lcsc\_vid=FlkNBAIDRQULVABfFAVZBgZVFVZYBgZSQ1NeBVIFQlExVlNeR1VXVlNfRlBfUzsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D
- Supply Voltage: 3V \~ 3\.6V
- License: https://creativecommons\.org/licenses/by/4\.0/
- Current \- Receiving: 95mA \~ 97mA
- Manufacturer Name: ESPRESSIF\(乐鑫\)
- Symbol Style: parametric\-v1
- Functional Group: ESP32\-S3 Core
- Role: Main Controller
- Current \- Transmitting: 285mA \~ 355mA
- LCSC Part Number: C2913202
- Part Type: RF Transceiver

**Pins:**
- 3V3 [pin 2]
- EN [pin 3]
- GND [pin 47]
- GND [pin 41]
- GND [pin 45]
- GND [pin 40]
- GND [pin 48]
- GND [pin 49]
- GND [pin 44]
- GND [pin 46]
- GND [pin 42]
- GND [pin 1]
- GND [pin 43]
- IO0 [pin 27]
- IO1 [pin 39]
- IO10 [pin 18]
- IO11 [pin 19]
- IO12 [pin 20]
- IO13 [pin 21]
- IO14 [pin 22]
- IO15 [pin 8]
- IO16 [pin 9]
- IO17 [pin 10]
- IO18 [pin 11]
- IO19 [pin 13]
- IO2 [pin 38]
- IO20 [pin 14]
- IO21 [pin 23]
- IO3 [pin 15]
- IO35 [pin 28]
- IO36 [pin 29]
- IO37 [pin 30]
- IO38 [pin 31]
- IO39 [pin 32]
- IO4 [pin 4]
- IO40 [pin 33]
- IO41 [pin 34]
- IO42 [pin 35]
- IO45 [pin 26]
- IO46 [pin 16]
- IO47 [pin 24]
- IO48 [pin 25]
- IO5 [pin 5]
- IO6 [pin 6]
- IO7 [pin 7]
- IO8 [pin 12]
- IO9 [pin 17]
- RXD0 [pin 36]
- TXD0 [pin 37]

### U6 — [USBLC6\-2SC6](https://flux.ai/vasy_skral/usblc6-2sc6~g1b.md)

- Role Details: USB 2\.0 D\+/D\- ESD array, LCSC C7519
- Manufacturer Part Number: USBLC6\-2SC6
- Symbol Style: parametric\-v1
- 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
- Functional Group: USB\-C Input and Native USB
- LCSC Part Number: C7519
- Role: ESD Protection

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

### U7 — [MAX98357AETE\+T](https://flux.ai/adrian95/max98357aeteplust~wk.md)

- Functional Group: I2S Speaker Amplifier
- License: https://creativecommons\.org/licenses/by/4\.0/
- Part Type: Integrated Circuit
- Datasheet URL: https://www\.analog\.com/media/en/technical\-documentation/data\-sheets/max98357a\-max98357b\.pdf
- Role: I2S Class\-D Amplifier
- Symbol Style: parametric\-v1
- Manufacturer Name: Analog Devices Inc\./Maxim Integrated
- Role Details: Operated from 3\.3 V and firmware\-limited for approximately 0\.5 W nominal speaker output
- Manufacturer Part Number: MAX98357AETE\+T

**Pins:**
- \~SD\_MODE [pin 4]
- BCLK [pin 16]
- DIN [pin 1]
- GAIN\_SLOT [pin 2]
- GND\_1 [pin 3]
- GND\_2 [pin 11]
- GND\_3 [pin 15]
- LRCLK [pin 14]
- N\.C\.\_1 [pin 5]
- N\.C\.\_2 [pin 6]
- N\.C\.\_3 [pin 12]
- N\.C\.\_4 [pin 13]
- OUTN [pin 10]
- OUTP [pin 9]
- THERMAL\_PAD [pin 17]
- VDD\_1 [pin 7]
- VDD\_2 [pin 8]

### U8 — [BM05B\-SRSS\-TB\(LF\)\(SN\)](https://flux.ai/lcsc/bm05b-srss-tblfsn~bguy.md)

- Manufacturer Name: JST
- LCSC Part Number: C160391
- Package or Case Code: CONN\-SMD\-5P\-P1\.00\_BM05B\-SRSS\-TB\-LF\-SN
- Role: GPIO Expansion Connector
- Role Details: Mixed safe GPIO/ADC/PWM plus 3V3 and GND; rail current budget shared
- Part Type: Wire To Board / Wire To Wire Connector
- JLCPCB Part Class: Extended Part
- Product Info Url: https://lcsc\.com/product\-detail/Others\_JST\-Sales\-America\_\_JST\-Sales\-America\-BM05B\-SRSS\-TB\-LF\-SN\_C160391\.html
- Datasheet URL: https://lcsc\.com/product\-detail/Others\_JST\-Sales\-America\_\_JST\-Sales\-America\-BM05B\-SRSS\-TB\-LF\-SN\_C160391\.html
- Functional Group: GPIO Expansion
- Manufacturer Part Number: BM05B\-SRSS\-TB\(LF\)\(SN\)

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

### U9 — [BM05B\-SRSS\-TB\(LF\)\(SN\)](https://flux.ai/lcsc/bm05b-srss-tblfsn~bguy.md)

- Manufacturer Name: JST
- Role: GPIO Expansion Connector
- LCSC Part Number: C160391
- Package or Case Code: CONN\-SMD\-5P\-P1\.00\_BM05B\-SRSS\-TB\-LF\-SN
- Role Details: Mixed safe GPIO/ADC/PWM plus 3V3 and GND; rail current budget shared
- Functional Group: GPIO Expansion
- Part Type: Wire To Board / Wire To Wire Connector
- JLCPCB Part Class: Extended Part
- Product Info Url: https://lcsc\.com/product\-detail/Others\_JST\-Sales\-America\_\_JST\-Sales\-America\-BM05B\-SRSS\-TB\-LF\-SN\_C160391\.html
- Datasheet URL: https://lcsc\.com/product\-detail/Others\_JST\-Sales\-America\_\_JST\-Sales\-America\-BM05B\-SRSS\-TB\-LF\-SN\_C160391\.html
- Manufacturer Part Number: BM05B\-SRSS\-TB\(LF\)\(SN\)

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

*The full schematic, PCB layout, bill of materials, and interactive design are available at [https://flux\.ai/kallurik/esp32\-s3\-expandable\-audio\-controller\~fr](https://flux.ai/kallurik/esp32-s3-expandable-audio-controller~fr).*

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*Generated from [https://flux\.ai/kallurik/esp32\-s3\-expandable\-audio\-controller\~fr](https://flux.ai/kallurik/esp32-s3-expandable-audio-controller~fr)*