SLEXP8022C

UG379: WF200 Wi-Fi Expansion Kit User s Guide The WF200 Wi-Fi Expansion Kit is an excellent way to explore WF200 EXPANSION BOARD FEATURES and evaluate the WF200 Wi-Fi Transceiver with a Raspberry Pi or an EFM32 MCU for your embedded application. EXP connector for interfacing Silicon Labs Starter Kits The WF200 Wi-Fi Transceiver is an easy to use and easy to interface Wi-Fi Network Selectable SPI or SDIO host interface Co-Processor (NCP). Most of the associated complexity of Wi-Fi and the protocol stack Allows board detection and is offloaded to the NCP and allows for easy Wi-Fi integration into any embedded sys- identification tem. Raspberry Pi compatible HAT 40-pin header The kit easily integrates and brings Wi-Fi connectivity to a compatible Silicon Labs HAT EEPROM for identification MCU Starter Kit through the EXP header. The WF200 Wi-Fi Expansion Kit has also been designed after the Raspberry Pi Hardware Attached on Top (HAT) board specifi- cation, allowing the WF200 Wi-Fi Expansion Kit to connect to a Raspberry Pi. silabs.com Building a more connected world. Rev. 1.0 Table of Contents 1. Introduction................................3 2. Hardware Overview.............................5 2.1 Hardware Layout .............................5 3. WF200 Wi-Fi NCP Expansion Kit........................6 3.1 Host Interfaces..............................6 3.2 Power-on and Manual Reset Circuit.......................7 4. Connectors................................8 4.1 EXP Header...............................9 4.1.1 Pass-through EXP Header ........................9 4.1.2 EXP Header Pinout...........................10 4.2 Raspberry Pi Connector...........................11 4.2.1 Raspberry Pi Connector Pinout.......................12 4.3 External FEM Connector ..........................13 4.3.1 External FEM Connector Pinout.......................13 4.4 PTA Connector..............................14 4.4.1 PTA Connector Pinout..........................14 4.5 Secondary RF Connector ..........................14 4.6 Power Supply ..............................15 5. Schematics, Assembly Drawings, and BOM................... 16 6. Kit Revision History............................ 17 6.1 SLEXP8022A Revision History ........................17 6.2 SLEXP8022B Revision History ........................17 7. Document Revision History ......................... 18 silabs.com Building a more connected world. Rev. 1.0 2