The ESK32-20001 Expansion Board is designed to work alongside the ESK32-30xxx series starter kit. The accompanying peripheral components on the board include a Buzzer, Key Inputs, Touch Keys, RS232 Socket, SD Card Socket, EEPROM, Serial Flash Memory, LEDs and Potentiometer etc. This wide range of peripheral components will allow users to quickly understand and evaluate the HT32 series functions and features.
There are only three components which are different between the ESK32-21001 and the ESK32-20001. These are the CMOS sensor connector, smart card connector and audio in/out which are only available in the ESK32-21001.