Rainbow LED Ring V3 (Arduino Compatible) [Discontinued] _MAKE_DISPLAY_SEG no heat sinks are required

no heat sinks are required and it's extremely efficient - up to 93% efficiency makes it great for portable or battery-powered rigs

so it'll fit the Pi4

Talk to an Arduino with your iPhone

1x Pi-EzConnect Terminal Block Breakout HAT

Rainbow LED Ring V3 (Arduino Compatible) [Discontinued] _MAKE_DISPLAY_SEG no heat sinks are requiredThe Rainbow Ring board has been upgraded to version 3! This is probably the most beautiful LED ring ever. Each led on the ring can be controlled desperately on its brightness and colors (RGB). It comes with pre burned bootloader which has several built in led scripts. This Rainbow LED Ring V3 allows I2C Serial communication from any MCU and can be serially linked to make a beautiful Art piece via I2C. This Rainbow LED Ring V3 can be programmed using