# Mutual Black Battle Mech
## Description
Welcome to your new project. Imagine what you can build here.
## Project Details
- **Owner:** dharineeshsudhakar
- **Created:** 4/16/2026
- **Last Updated:** 4/16/2026
- **Visibility:** Public
## Key Components
### BZ1 — [HNB09A05](https://www.flux.ai/adrian95/hnb09a05.md)
- Manufacturer Name: Huaneng
- Manufacturer Part Number: HNB09A05
- License: https://creativecommons.org/licenses/by/4.0/
- Role Details: Active buzzer driven from ESP32 GPIO25
- Package: Through Hole
- Part Type: Buzzer
- Role: Buzzer
- Datasheet URL: https://lcsc.com/datasheet/lcsc_datasheet_2411281353_Huaneng-HNB09A05_C96493.pdf
**Pins:**
- - [pin 2]
- + [pin 1]
### J1 — [Connector 01x04 Horizontal](https://www.flux.ai/jharwinbarrozo/connector-01x04-horizontal.md)
- Package: Through Hole
- Role: Sound Sensor Module
- Role Details: KY-038 stand-in header representing VCC, GND, AO, and DO module pins
- Part Type: Connector
**Pins:**
- PIN_1 [pin 1]
- PIN_2 [pin 2]
- PIN_3 [pin 3]
- PIN_4 [pin 4]
### U1 — [ESP32-DEVKIT-V1](https://www.flux.ai/jharwinbarrozo/esp32-devkit-v1.md)
- Symbol Style: Parametric
- Manufacturer Name: Espressif Systems
- Manufacturer Part Number: ESP32-DEVKIT-V1
- Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_en.pdf
- Part Type: Integrated Circuit
**Pins:**
- 3V3 [pin 1]
- D12 [pin 27]
- D13 [pin 28]
- D14 [pin 26]
- D15 [pin 3]
- D18 [pin 9]
- D19 [pin 10]
- D2 [pin 4]
- D21 [pin 11]
- D22 [pin 14]
- D23 [pin 15]
- D25 [pin 23]
- D26 [pin 24]
- D27 [pin 25]
- D32 [pin 21]
- D33 [pin 22]
- D34 [pin 19]
- D35 [pin 20]
- D4 [pin 5]
- D5 [pin 8]
- EN [pin 16]
- GND [pin 2]
- GND_1 [pin 29]
- RX0 [pin 12]
- RX2 [pin 6]
- TX0 [pin 13]
- TX2 [pin 7]
- VIN [pin 30]
- VN [pin 18]
- VP [pin 17]
### US1 — [HC-SR04](https://www.flux.ai/vasy_skral/hc-sr04.md)
- Manufacturer Part Number: HC-SR04
- Role Details: HC-SR04 ranging module; VCC to VIN, TRIG to GPIO32, ECHO through divider to GPIO33
- Part Type: Sensor
- Datasheet URL: https://cdn.sparkfun.com/datasheets/Sensors/Proximity/HCSR04.pdf
- Role: Ultrasonic Sensor
- Package: Module
- License: https://creativecommons.org/licenses/by/4.0/
**Pins:**
- ECHO [pin 3]
- GND [pin 4]
- TRIG [pin 2]
- VCC [pin 1]
*The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/dharineeshsudhakar/mutual-black-battle-mech](https://www.flux.ai/dharineeshsudhakar/mutual-black-battle-mech).*
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