A 1x7 (100-mil) female right-angle header (J100) provides access to key signals and power of the evaluation kit. The header includes the following pin functions:
VDD (External power in-/output): This pin may supply external power to the evaluation kit or supply an external system.
GND (Ground): Common ground reference for signals and power.
Detect (Digital Output): Indicates the presence of liquid based on sensor input.
Hbeat (Digital Output): Periodic heartbeat signal confirming the MTCH9010 is active and operating normally.
Wake (Digital Input): External signal used to wake the system from sleep. It requires configuring the MTCH9010 sleep period for external wake-up.
UART Interface: TX and RX pins for serial communication with an external host controller.
DANGER: Header J100 has no polarity protection. Ensure correct polarity when connecting power to avoid potential damage to the board.
Important: When powering the board externally through header J100, the user must remove the jumper cap on header J201 to prevent potential damage to the board.
