Components needed for the hardware: 2x Adafruit 1.2" 4-Digit 7-Segment Display w/I2C Backpack - (Red or any available color you like) 1x Arduino Micro (ATmega 32u4 based microcontroller with USB) 4x 5 pin male header some cabling to connect the displays to the Arduino i2c, see schematic.
Needed for SMPTE reading: the 6.3 mm jack, transistor etc.
Added a folder with stl files for a 3d printable casing.