Web Site: www.parallax.com Office: (916) 624-8333 Forums: forums.parallax.com Fax: (916) 624-8003 Web Site: www.taosinc.com Office: (972) 673-0759 Sales: sales parallax.com Sales: (888) 512-1024 Sales: sales taosinc.com Fax: (972) 943-0610 Technical: support parallax.com Support: (888) 997-8267 TSL1401-DB ( 28317): Linescan Camera Module Product Overview General Description The TSL1401-DB is a daughterboard that provides a TAOS TSL1401R 128-pixel linear array sensor and a lens. It is designed to plug into a motherboard (e.g. MoBoStamp-pe (p/n 28300), MoBoProp (p/n 28303, in development), Propeller Backpack (p/n 28327)) or the DB-Expander (p/n 28325). This module will allow its host system to see in one dimension. Two- dimensional vision can also be achieved by moving either the subject or the sensor in a direction perpendicular to the sensor axis. Features Provides vision in one dimension with 128-pixel resolution. Three-line serial interface with analog intensity output for each pixel. Included 7.9mm lens provides a field of view equal to subject distance. Plug-compatible with Parallax motherboards. Coprocessor driver firmware for the MoBoStamp-pe available for download. Can be interfaced directly to a BASIC Stamp for some functions. Onboard accessory socket for strobe output or 50/60Hz fluorescent light sync input. Runs from 3.3V or 5V supplies. (5V is needed for the optional LED strobe attachment.) Applications Measure height, width, diameter, thickness. Locate objects, lines, edges, gaps, holes. Count items measure conveyor coverage. Determine volume, shape, orientation. Read simple barcodes. Learn the principles of machine vision. Whats Included TSL1401-DB with lens. What You Need to Provide Parallax motherboard, or DB-Expander with BASIC Stamp and carrier board (such as the BOE). Bueno Systems, Inc. TSL1401-DB (2009.10.01) Page 1 of 52 Introduction What the Module Sees The TSL1401R chip is a linear array (linescan) sensor. It consists of a single row of 128 photodetectors. The TSL1401-DB includes a lens to form images on the sensor array. What results is somewhat like peering through the narrow crack of a partially opened door to see a thin slice of what lies behind it. The illustration below helps to explain the concept: TOP VIEW The output from each observed pixel is an analog voltage proportional to light intensity. The analog intensity curve corresponding to the image above would look something like this: Bueno Systems, Inc. TSL1401-DB (2009.10.01) Page 2 of 52 First Pixel Last Pixel