BB202 by NXP(恩智浦) Design and production,in Hong Kong One Core Century Technology Co., Limited Spot sales,And can pass Hong Kong One Core Century Technology Co., Limited Purchasing。BB202 Price reference $ 0。BB202 - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information BB202 Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial