ESP32-BC250-LOP_PSU-PowerON-Xbox

This project turns the ESP32_Relay X2 board into a smart PC power controller. It allows you to wake your computer (specifically AMD BC-250 systems running Linux/Bazzite) using an Xbox gamepad, while maintaining the gamepad's direct Bluetooth connection to the PC itself.

It also synchronously supplies 12V power to peripherals (such as a Commander Duo fan controller) exactly when the motherboard wakes up.

🌟 Key Features

• Passive BLE Scanning: The ESP32 doesn't "hijack" the gamepad's connection. It simply listens to BLE broadcasts, waits for a known controller to turn on, and triggers the PC power relay. You can launch Forza Motorsport right away — the gamepad connects directly to your OS!
• Sniper Pairing Mode: The pairing mode ignores neighboring devices. It only pairs with gamepads brought point-blank to the antenna (closer than 30 cm, utilizing a -45 dBm RSSI threshold).
• Hardware Blacklist: Built-in protection against annoying smart TVs and rogue devices via MAC address filtering.
• "Zombie-Wake" Protection: After shutting down the PC via the OS menu, the ESP32 goes "deaf" for 60 seconds. This gives the gamepad time to power off naturally and prevents cyclic boot loops.
• LED & Power Sync: The physical button's LED and the 12V peripheral relay work in strict sync with the motherboard's actual power state.

🛠 Hardware Requirements

• ESP32_Relay X2 (303E32DC210) dual-relay board
• Motherboard (AMD BC-250 powered by LOP_PSU)
• Physical momentary push button with an LED indicator
• Xbox Series X/S Gamepad (must support the BLE protocol)

📌 Pinout & Wiring

| ESP32 Pin | Connection | Description |

| GPIO 17 | Left Relay | Motherboard PWR_SW pins (PC Power Toggle) | | GPIO 16 | Right Relay | 12V line power toggle (Commander Duo / Peripherals) | | GPIO 23 | Orange Wire | Physical case button | | GPIO 19 | Green Wire | Button LED positive terminal | | GPIO 4 | Red Wire | PC state monitor (e.g., from TPMS1 9-pin connector) | | GND | Black Wires | Common Ground (Button, LED, PC monitor) |

🎮 Button Controls

The physical button on your PC case handles three functions based on hold duration:

1. Short press (under 5 sec): Standard PC power toggle (duplicates the gamepad wake function).
2. Hold for 5 seconds: Enters Pairing Mode. The LED will blink rapidly. Bring your Xbox gamepad point-blank to the ESP32 and turn it on to save its MAC address.
3. Hold for 10 seconds: Factory Reset. Completely clears the saved gamepad memory. The LED will give 3 long blinks to confirm.

🚀 Installation & Flashing

1. Open the .ino sketch in the Arduino IDE.
2. Ensure you have the standard ESP32 core libraries installed.
3. (Optional) Add the MAC addresses of any rogue neighborhood devices to the blacklistedMACs array in the code.
4. To flash the board, place a physical jumper between the IO0 and GND pins, connect via USB-TTL, select a baud rate of 115200, and click "Upload".
5. Remove the jumper and reboot the board after flashing.