Click here to ask about the production status of specific part numbers. Evaluates: MAX25405 MAX25405 Evaluation Kit General Description Features The MAX25405 evaluation kit (EV kit) is a complete sys- Simple yet Flexible Gesture Solution tem for demonstrating the MAX25405 optical IR sensor in Lower Solution Cost than Camera-Based Systems a typical gesture and proximity-sensing application. Integrated Optics with 20deg Field of View (FOV) The MAX25405 enables recognition of the following Optimum Resolution for Dynamic Hand Gestures gestures: Built-in LED Driver with Ultra-Low-Power Operation Hand Swipe Left, Right, Up, and Down 120kLux Ambient Light Performance Finger/Hand Rotation Clockwise and Compact 20-pin, 4mm x 4mm QFN Package, Side- Counter-Clockwise Wettable Air Click AEC-Q100 Proximity Detection and Linger-to-Click -40C to +85C Operation The application circuit operates by illuminating the users hand with a precision-controlled IR light source and mea- suring the reflected signal with the MAX25405s 6x10 (60 pixel) IR sensor array. The four-LED IR light source is PWM controlled with external FETs from the MAX25405s onboard FET driver. The return signal is analyzed with an embedded microcontroller that interprets the gestures. The EV kit consists of the following: MAX32620FTHR Microcontroller Platform Interface Shield Board MAX25405 Sensor Board Ribbon Cable (Connects Sensor Board to Shield Board) 3.3V Power Supply USB 2.0 Type A to Micro B Cable Note: Plastic stand shown not included with EV kit. Check product website for CAD files. Figure 1. MAX25405 EV Kit Ordering Information appears at end of data sheet. 319-100730 Rev 0 4/21Evaluates: MAX25405 MAX25405 Evaluation Kit Quick Start Required Equipment MAX25405 EV kit Included USB 2.0 Type A to Micro B cable Included 3.3V power supply Windows PC running the Maxim Gesture Sensor EV kit graphical user interface (GUI) Note: In the following sections, software-related items are identified by bolding. Text in bold refers to items directly Figure 2. USB and Power Connectors from the EV kit software. Text in bold and underlined refers to items from the Windows operating system. Procedure The EV kit is fully assembled and tested. Follow the steps to verify board operation: 1) Install the PC EV kit software by running the in- stallation executable: MaximGestureSensorEV- Kit SetupVx-x-x.exe. Follow the on-screen prompts for default installation, and install the driver when prompted. 2) Connect the external 3.3V supply to the shield board (see Figure 2). 3) Connect a USB cable from the MAX32620FTHR micro-USB port to the PCs USB port (see Figure 2). 4) Launch the PC GUI software. Start Maxim Inte- grated MaximGestureSensorEVKit. 5) The software should auto-detect the presence of the EV kit. To verify a successful connection, the lower Figure 3. Heat Map Tab right of the GUI should read Connected on COMxx at 115200. If the software fails to make a connection, the following error message is reported: COM Port Offline. See the Troubleshooting section for help if this occurs. 6) Click on the Run button to activate the heat map. The frames-per-second (FPS) should report a non- zero value (depending on device configuration see Figure 3). Click Stop when finished viewing. Now that the EV kit is operating, proceed to evaluate gesture performance. Windows is a registered trademark and registered service mark Figure 4. Gesture Tab of Microsoft Corporation. Maxim Integrated 2 www.maximintegrated.com