GD32C103VBT6 by GDMCU Design and production,in LYTCHIPS Spot sales,And can pass LYTCHIPS Purchasing。GD32C103VBT6 Price reference $ 0。GD32C103VBT6 - 。You can download Chinese information、Pin map、DatasheetData sheet function specification,In the information GD32C103VBT6 Detailed pin diagram and function application circuit diagram voltage and usage method and tutorial