FRDM-KE04Z by NXP Semiconductors Design and production,in GUI XIN Group (Hong Kong) Limited Spot sales,And can pass GUI XIN Group (Hong Kong) Limited Purchasing。FRDM-KE04Z Price reference $ 18.550400。FRDM-KE04Z - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information FRDM-KE04Z Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial