AHOY, wanna spell out some LOVE with this COOL Raspberry Pi FOUR letter PHAT? Pimoroni's Four Letter pHAT has four 14-segment displays that you can use to display text, numbers, and a host of other characters. The LEDs are a beautiful retro green, just like your old digital alarm clock. They're driven by the HT16K33 chip over I2C, which does all the multiplexing for you. While it is shaped and sized to match a Pi Zero, it works great with any Pi with 2x20 connector.