POST Code Monitor
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Connect your POST reader to start monitoring
Discovery commands work across readers. Extended controls are enabled for compatible Pico firmware.
WebXboxPOSTTool
Multi-device Xbox POST diagnostics for Flipper Zero, Raspberry Pi Pico, and future ESP32 readers
Not Connected
Flipper ZeroSupported
Raspberry Pi PicoSupported
ESP32Planned
Reader Connection
Web Serial ready for Flipper Zero and Pico readers
Monitor Controls
Manual Lookup
All archived records, stored on this site
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Xbox POST Reader Wiring Guide
Choose the pinout for your reader. All supported readers monitor the same Xbox SDA, SCL, and ground signals.
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Xbox POST connection diagram
Flipper Zero
- SDA: GPIO 15 ā FACET 26 or AARDVARK 3
- SCL: GPIO 16 ā FACET 25 or AARDVARK 1
- GND: Flipper GND ā Xbox GND
Raspberry Pi Pico
- SDA: GP0 ā FACET 26 or AARDVARK 3
- SCL: GP1 ā FACET 25 or AARDVARK 1
- GND: Pico GND ā Xbox GND
ESP32 reader Planned
ESP32 firmware and a confirmed default pinout are not published yet. The future reader will use configurable 3.3 V open-drain IĀ²C pins and the same website serial protocol.
Safety: Connect SDA, SCL, and GND only. Do not connect a reader power pin to the Xbox POST header.
Pico reference: XboxOneResearch/PicoDurangoPOST