Each of the seven segments is a single 0201 LED. Six I/O lines ... Hoping to reduce the module’s interface to two pins, Sam is now experimenting with a seven-segment display on a flex PCB ...

For the displays, [Becky] is using four Adafruit 7-Segment LED modules, which are easily controlled via I2C which keeps the wiring to a minimum. It’s interesting to note that since her follower ...

One Pico outputs time to a seven-segment display, while the other outputs a variety of information using a MAX7219 LED matrix panel ... an IR remote programmed to interface with the clock.