1 Introduction

Kit introduction, features, overview.

1.1 MTCH9010 Evaluation Kit

The MTCH9010 Evaluation Kit is a complete system designed to help users quickly familiarize themselves with the MTCH9010's capabilities. It includes two sensor boards: One capacitive and one conductive. The evaluation kit uses the MCP2221A USB to UART bridge for communication, allowing sensor data streaming and device configuration through the MTCH9010’s Enhanced Configuration mode.

The evaluation kit is designed to allow users to easily interface and test their custom sensors with the MTCH9010, providing a versatile platform for rapid development and experimentation.

1.2 Kit Features

Liquid Detection and Indication
  • Includes two sensor boards: one capacitive and one conductive
  • Detect LED indicates liquid detection
  • Heartbeat LED provides system status updates
Configure the MTCH9010 using Slide Switches or UART
  • Easy Configuration Using the Slide Switches:
    • Select between capacitive or conductive sensing modes
    • Adjustable liquid detection threshold via an on-board potentiometer
    • Selectable sleep periods (four options) to optimize power consumption
    • Enable sensor data streaming via UART
    • Enable Enhanced configuration mode
  • Advanced Configuration Using UART Interface:
    • Access enhanced settings for more precise control and customization
USB to UART Communication
  • MCP2221A USB to UART bridge for easy data logging and communication
  • On-board status LED indicating successful enumeration with host computer
Multiple Power Options
  • Directly power the board via USB for easy use
  • On-board LDO ensures stable 3.3V operation for low-power applications
  • Allows integration with external power sources for system evaluation
Reliable On-Board Power Management
  • MCP1754 (3.3V, 150 mA LDO) powers the board and USB bridge
  • MIC2008 High-side power switch provides controlled power delivery with controlled slew rate and over-current protection
  • On-board status LED indicating power status

1.3 Overview

Figure 1-1. MTCH9010 Evaluation Kit Overview