: The E7A MB PCB V3 Wiring Diagram provides a 20-page breakdown of every diode, transistor, and sensor on the board.

during standard operation to prevent moisture-related breakage. Firmware and Customization

| Pin | Signal | Description | |------|--------|-------------| | 1 | VREF (3.3V) | Target voltage sense | | 2 | SWDIO / TMS | Data I/O | | 3 | GND | Ground | | 4 | SWCLK / TCK | Clock | | 5 | GND | Ground | | 6 | SWO / TDO | Trace output | | 7 | KEY / NC | No connect (keyed) | | 8 | nRESET | Reset line | | 9 | GND | Ground | | 10 | nTRST / NC | Optional reset |