Adafruit

Add another 16 pins to your microcontroller using an MCP23017 port expander. The MCP23017 uses two i2c pins (these can be shared with other i2c dev...

Add another 8 pins to your microcontroller using an MCP23008 port expander. The MCP23008 uses two i2c pins (these can be shared with other i2c dev...

Add a bunch of high-power outputs to a microcontroller system with chainable shift registers. These chips take a serial input (SPI) of 1 byte (8 bi...

When you need some help driving a lot of LEDs, the MAX7219 is the best friend you could hope for. Many of us know that if you want to control a lot...

Add lots more outputs to a microcontroller system with chainable shift registers. These chips take a serial input (SPI) of 1 byte (8 bits) and then...

The VS1053 is a multi-format audio codec chip, loved by many for its simplicity and power. CODEC stands for "Coder & Decoder" and that's prett...