Adafruit PiRTC - PCF8523 Real Time Clock for Raspberry Pi POL_12V Medium-Power (MP) 25D mm Gearmotors The terminal blocks work with

The terminal blocks work with the four large holes

Hooking up a handful of inputs and outputs to an Arduino UNO R4 has never been so easy

and traveling nut dimensions in mm

there are 60 RGB LEDs per meter and the strip is half a meter long so you get 30 individually-controlled RGB LEDs

You don't need it to be all blue

Adafruit PiRTC - PCF8523 Real Time Clock for Raspberry Pi POL_12V Medium-Power (MP) 25D mm Gearmotors The terminal blocks work withThis is a great battery backed real time clock (RTC) that allows your Raspberry Pi project to keep track of time if the power is lost. Perfect for data logging, clock building, time stamping, timers and alarms, etc. Equipped with PCF8523 RTC, it works great with the Raspberry Pi and has native kernel support. Works perfectly with any Raspberry Pi (or similar single board linux computer) including the Pi 1, Pi 2, Pi 3, Pi Zero, A+, B+, Pi 4, etc. Fully