# Mini Paper USV PCB Upgrade v1\.0

## Description

Mini Paper USV PCB Upgrade v1\.0 schematic twin using an ELEGOO MEGA 2560, L293D H\-bridge, HC\-SR04 ultrasonic sensor, SG90 servo header, LED indicators, buzzer, and dual 9V parallel battery input\.

## Project Details

- **Owner:** josalo7299
- **Created:** 6/1/2026
- **Last Updated:** 6/1/2026
- **Visibility:** Public

## Key Components

### J10 — [150060RS73220](https://flux.ai/vasy_skral/150060rs73220~kj9.md)

- Manufacturer Name: Würth Elektronik
- Role Details: Red LED
- License: https://creativecommons\.org/licenses/by/4\.0/
- Datasheet URL: https://www\.we\-online\.com/components/products/datasheet/150060RS73220\.pdf
- Role: Indicator LED
- Part Type: LED
- Manufacturer Part Number: 150060RS73220

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

### J3 — [B2B\-PH\-K\-S](https://flux.ai/adrian95/b2b-ph-k-s~fx.md)

- Role: Power Input
- License: https://creativecommons\.org/licenses/by/4\.0/
- Part Type: Connector
- Datasheet URL: https://www\.jst\-mfg\.com/product/pdf/eng/ePH\.pdf
- Role Details: Dual 9V parallel battery positive/negative input feeding MEGA VIN and motor VS; budgeted about 1A combined source
- Package or Case Code: JST\_B2B\-PH\-K\-S
- Manufacturer Part Number: B2B\-PH\-K\-S
- Manufacturer Name: JST

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

### J4 — [HC\-SR04](https://flux.ai/vasy_skral/hc-sr04~afv.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Part Type: Sensor
- Datasheet URL: https://cdn\.sparkfun\.com/datasheets/Sensors/Proximity/HCSR04\.pdf
- Role: Sensor
- Manufacturer Part Number: HC\-SR04
- Role Details: HC\-SR04 Ultrasonic Sensor
- Symbol Style: parametric\-v1

**Pins:**
- ECHO [pin 3]
- GND [pin 4]
- TRIG [pin 2]
- VCC [pin 1]

### J5 — [61300311021](https://flux.ai/adrian95/61300311021~b2y.md)

- Role Details: SG90 SERVO \| Rudder 
- License: https://creativecommons\.org/licenses/by/4\.0/
- Datasheet URL: https://www\.we\-online\.com/components/products/datasheet/61300311021\.pdf
- Role: Servo Connector
- Manufacturer Name: Wurth Elektronik
- Manufacturer Part Number: 61300311021
- Part Type: Connector
- Package or Case Code: HDRRA3W79P0X254\_1X3\_762X254X269P

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

### J7 \| \-30 mA — [HNB09A05](https://flux.ai/adrian95/hnb09a05~z5g.md)

- Manufacturer Part Number: HNB09A05
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role Details: Buzzer input from MEGA D28; expected about 30mA
- Part Type: Buzzer
- Datasheet URL: https://lcsc\.com/datasheet/lcsc\_datasheet\_2411281353\_Huaneng\-HNB09A05\_C96493\.pdf
- Manufacturer Name: Huaneng
- Role: Buzzer

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

### J8 — [150060VS55040](https://flux.ai/adrian95/150060vs55040~c2q.md)

- Part Type: LED
- Datasheet URL: https://www\.we\-online\.com/components/products/datasheet/150060VS55040\.pdf
- Manufacturer Part Number: 150060VS55040
- Manufacturer Name: Würth Elektronik
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role: Indicator LED
- Role Details: Green LED

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

### J9 — [ASMT\-RF45\-AN002](https://flux.ai/adrian95/asmt-rf45-an002~0x2.md)

- Role: Indicator LED
- Role Details: Yellow LED
- Part Type: LED
- Datasheet URL: https://docs\.broadcom\.com/docs/AV02\-0378EN
- Manufacturer Part Number: ASMT\-RF45\-AN002
- Manufacturer Name: Broadcom Limited
- License: https://creativecommons\.org/licenses/by/4\.0/

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

### M1 — [DC Motor](https://flux.ai/vasyl/dc-motor~ku.md)

- Manufacturer Part Number: 123458

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

### MEGA1 — [Arduino Mega2560 Pins](https://flux.ai/kevmoyer/arduino-mega2560-pins~iu.md)

- Role Details: ELEGOO MEGA 2560, ATmega2560 16 MHz; pins used: 5V, GND, VIN, D6, D7, D8, D9, D11, D12, D22, D24, D26, D28
- Part Type: Development Board
- Manufacturer Name: Arduino
- Role: Controller
- License: https://creativecommons\.org/licenses/by/4\.0/
- Datasheet URL: https://media\.digikey\.com/pdf/Data%20Sheets/Arduino%20PDFs/A000067\_Web\.pdf
- Manufacturer Part Number: A000067

**Pins:**
- \+3V3 [pin 3V3]
- \+5V\_1 [pin 5V\_1]
- \+5V\_2 [pin 5V\_2]
- \+5V\_3 [pin 5V\_3]
- 0 [pin 0]
- 1 [pin 1]
- 10 [pin 10]
- 11 [pin 11]
- 12 [pin 12]
- 13 [pin 13]
- 14 [pin 14]
- 15 [pin 15]
- 16 [pin 16]
- 17 [pin 17]
- 18 [pin 18]
- 19 [pin 19]
- 2 [pin 2]
- 20 [pin 20]
- 21 [pin 21]
- 22 [pin 22]
- 23 [pin 23]
- 24 [pin 24]
- 25 [pin 25]
- 26 [pin 26]
- 27 [pin 27]
- 28 [pin 28]
- 29 [pin 29]
- 3 [pin 3]
- 30 [pin 30]
- 31 [pin 31]
- 32 [pin 32]
- 33 [pin 33]
- 34 [pin 34]
- 35 [pin 35]
- 36 [pin 36]
- 37 [pin 37]
- 38 [pin 38]
- 39 [pin 39]
- 4 [pin 4]
- 40 [pin 40]
- 41 [pin 41]
- 42 [pin 42]
- 43 [pin 43]
- 44 [pin 44]
- 45 [pin 45]
- 46 [pin 46]
- 47 [pin 47]
- 48 [pin 48]
- 49 [pin 49]
- 5 [pin 5]
- 50 [pin 50]
- 51 [pin 51]
- 52 [pin 52]
- 53 [pin 53]
- 6 [pin 6]
- 7 [pin 7]
- 8 [pin 8]
- 9 [pin 9]
- AD0 [pin AD0]
- AD1 [pin AD1]
- AD10 [pin AD10]
- AD11 [pin AD11]
- AD12 [pin AD12]
- AD13 [pin AD13]
- AD14 [pin AD14]
- AD15 [pin AD15]
- AD2 [pin AD2]
- AD3 [pin AD3]
- AD4 [pin AD4]
- AD5 [pin AD5]
- AD6 [pin AD6]
- AD7 [pin AD7]
- AD8 [pin AD8]
- AD9 [pin AD9]
- AREF [pin AREF]
- GND1 [pin GND1]
- GND2 [pin GND2]
- GND3 [pin GND3]
- GND4 [pin GND4]
- GND5 [pin GND5]
- IOREF [pin IOREF]
- NC [pin NC]
- RESET [pin RESET]
- SCL [pin SCL]
- SDA [pin SDA]
- VIN [pin VIN]

### U1 — [L293D](https://flux.ai/vasy_skral/l293d~9wp.md)

- Datasheet URL: https://www\.st\.com/content/ccc/resource/technical/document/datasheet/04/ac/22/f9/20/5d/43/a1/CD00000059\.pdf/files/CD00000059\.pdf/jcr:content/translations/en\.CD00000059\.pdf
- Manufacturer Part Number: L293D
- Role Details: L293D Motor Driver Module
- Symbol Style: Parametric
- Role: Motor Driver
- License: https://creativecommons\.org/licenses/by/4\.0/
- Part Type: Integrated Circuit
- Manufacturer Name: STMicroelectronics

**Pins:**
- 1A [pin 2]
- 1Y [pin 3]
- 2A [pin 7]
- 2Y [pin 6]
- 3A [pin 10]
- 3Y [pin 11]
- 4A [pin 15]
- 4Y [pin 14]
- EN1,2 [pin 1]
- EN3,4 [pin 9]
- GND [pin 12]
- GND [pin 5]
- GND [pin 13]
- GND [pin 4]
- VCC1 [pin 16]
- VCC2 [pin 8]

*The full schematic, PCB layout, bill of materials, and interactive design are available at [https://flux\.ai/josalo7299/mini\-paper\-usv\-pcb\-upgrade\-v1p0\~l1](https://flux.ai/josalo7299/mini-paper-usv-pcb-upgrade-v1p0~l1).*

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*Generated from [https://flux\.ai/josalo7299/mini\-paper\-usv\-pcb\-upgrade\-v1p0\~l1](https://flux.ai/josalo7299/mini-paper-usv-pcb-upgrade-v1p0~l1)*