The MCP4261 library supports both hardware SPI and software SPI up to 10 MHz. These series of potmeters (rheostats) come in values of 5, 10, 50 and 100 kΩ (±20%). Where other potmeters uses a range of ...
BC7595 -- 6 digits 7-segment LED display with 48-key key matrix driver BC7591 -- 32 digits 7-segment LED display with 96-key key matrix driver This library is available for all Arduino devices, and ...