FRDM-TWRPI by NXP Semiconductors Design and production,in Hong Kong QX Electronics Limited Spot sales,And can pass Hong Kong QX Electronics Limited Purchasing。FRDM-TWRPI Price reference $ 42.190000。FRDM-TWRPI - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information FRDM-TWRPI Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial