X9C103 digital potentiometer with a serial, 3 wire interface. 10K.

Seeed Studio XIAO SAMD21 carries the powerful CPU-ARM® Cortex®-M0+(SAMD21G18) running at up to 48Hz with 256KB Flash and 32KB SRAM on board and supports the USB Type-C interface which can supply power and download code. https://wiki.seeedstudio.com/Seeeduino-XIAO/