# 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://www.flux.ai/vasy_skral/150060rs73220~kj9.md) - Role: Indicator LED - Part Type: LED - Manufacturer Part Number: 150060RS73220 - Manufacturer Name: Würth Elektronik - Datasheet URL: https://www.we-online.com/components/products/datasheet/150060RS73220.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Red LED **Pins:** - A [pin 2] - K [pin 1] ### J3 — [B2B-PH-K-S](https://www.flux.ai/adrian95/b2b-ph-k-s~fx.md) - Datasheet URL: https://www.jst-mfg.com/product/pdf/eng/ePH.pdf - Manufacturer Name: JST - Part Type: Connector - Role: Power Input - Manufacturer Part Number: B2B-PH-K-S - Role Details: Dual 9V parallel battery positive/negative input feeding MEGA VIN and motor VS; budgeted about 1A combined source - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: JST_B2B-PH-K-S **Pins:** - 1 [pin 1] - 2 [pin 2] ### J4 — [HC-SR04](https://www.flux.ai/vasy_skral/hc-sr04~afv.md) - Part Type: Sensor - Symbol Style: parametric-v1 - Datasheet URL: https://cdn.sparkfun.com/datasheets/Sensors/Proximity/HCSR04.pdf - Role Details: HC-SR04 Ultrasonic Sensor - Manufacturer Part Number: HC-SR04 - Role: Sensor - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - ECHO [pin 3] - GND [pin 4] - TRIG [pin 2] - VCC [pin 1] ### J5 — [61300311021](https://www.flux.ai/adrian95/61300311021~b2y.md) - Role: Servo Connector - Manufacturer Name: Wurth Elektronik - Package or Case Code: HDRRA3W79P0X254_1X3_762X254X269P - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.we-online.com/components/products/datasheet/61300311021.pdf - Role Details: SG90 SERVO | Rudder - Manufacturer Part Number: 61300311021 **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### J7 | -30 mA — [HNB09A05](https://www.flux.ai/adrian95/hnb09a05~z5g.md) - Role: Buzzer - Manufacturer Part Number: HNB09A05 - Datasheet URL: https://lcsc.com/datasheet/lcsc_datasheet_2411281353_Huaneng-HNB09A05_C96493.pdf - Manufacturer Name: Huaneng - Role Details: Buzzer input from MEGA D28; expected about 30mA - Part Type: Buzzer - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - - [pin 2] - + [pin 1] ### J8 — [150060VS55040](https://www.flux.ai/adrian95/150060vs55040~c2q.md) - Datasheet URL: https://www.we-online.com/components/products/datasheet/150060VS55040.pdf - Role Details: Green LED - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED - Manufacturer Name: Würth Elektronik - Manufacturer Part Number: 150060VS55040 - Role: Indicator LED **Pins:** - A [pin 2] - K [pin 1] ### J9 — [ASMT-RF45-AN002](https://www.flux.ai/adrian95/asmt-rf45-an002~0x2.md) - Manufacturer Part Number: ASMT-RF45-AN002 - Role Details: Yellow LED - Part Type: LED - Manufacturer Name: Broadcom Limited - Role: Indicator LED - Datasheet URL: https://docs.broadcom.com/docs/AV02-0378EN - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A [pin 2] - K [pin 1] ### M1 — [DC Motor](https://www.flux.ai/vasyl/dc-motor~ku.md) - Manufacturer Part Number: 123458 **Pins:** - - [pin 2] - + [pin 1] ### MEGA1 — [Arduino Mega2560 Pins](https://www.flux.ai/kevmoyer/arduino-mega2560-pins~iu.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Development Board - Manufacturer Name: Arduino - Manufacturer Part Number: A000067 - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Arduino%20PDFs/A000067_Web.pdf - Role Details: ELEGOO MEGA 2560, ATmega2560 16 MHz; pins used: 5V, GND, VIN, D6, D7, D8, D9, D11, D12, D22, D24, D26, D28 - Role: Controller **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://www.flux.ai/vasy_skral/l293d~9wp.md) - Manufacturer Part Number: L293D - 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 - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit - Manufacturer Name: STMicroelectronics - Symbol Style: Parametric - Role: Motor Driver - Role Details: L293D Motor Driver Module **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://www.flux.ai/josalo7299/mini-paper-usv-pcb-upgrade-v1p0~l1](https://www.flux.ai/josalo7299/mini-paper-usv-pcb-upgrade-v1p0~l1).* --- *Generated from [https://www.flux.ai/josalo7299/mini-paper-usv-pcb-upgrade-v1p0~l1](https://www.flux.ai/josalo7299/mini-paper-usv-pcb-upgrade-v1p0~l1)*