Stmicroelectronics Spwf04Sa
WI-FI B/G/N INTELLIGENT MODULE, 2.5GHZ; Frequency RF:2.5GHz; Module Interface:SPI, UART; Module Applications:Consumer, Health & Fitness, Industrial, M2M & Home Automation, Security; Product Range:SPWF04; SVHC:No SVHC (12-Jan-2017)