Texas Advanced Optoelectronic Solutions (TAOS) Inc., Plano, TX, offers the LTFEVM evaluation module that supports the TSL230RD, TSL235R, TSL237S, TSL237T, TSL238D, and TSL245R light-to-frequency converters. Each converter has its own daughterboard that can be installed in either of the 2 daughterboard sockets on the EVM motherboard. Each daughterboard also has its own application software that is automatically initiated when the daughterboard is installed. The LTFEVM combines a motherboard with a Parallax BASIC Stamp microcontroller plus 2 microcontrollers operating as coprocessors, and the 6 daughterboards.

Reference: http://www.sensorsmag.com/sensors/product/productDetail.jsp?id=396963