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The advanced Expansion Board, ESK32-21001, is designed for the ESK32-30xxx series starter kit. The accompanying peripheral components on the board include a Buzzer, input Keys, touch Keys, RS232 socket, SD Card socket, EEPROM, Serial Flash, LEDs and Potentiometer etc. This wide range of peripheral components will allow users to quickly understand and evaluate the HT32 series functions and features.
The extension board has two models according to the presence or absence of some components on the board: the basic-model ESK32-20001 and the plus-model ESK32-21001. Only three functions are different between these two models. These are the CMOS sensor connector, smart card connector and audio in/out which are only available in the ESK32-21001.