Introduction - If you have any usage issues, please Google them yourself
The display module includes a dynamic scanning circuit and decoding of digital tube display circuit, the dynamic scanning circuit for digital control, you need to display and decode display circuit for the input binary information is converted to digital display coding. Display module using four digital tube display the countdown value, two used to show the east-west direction countdown value, two for the show north-south direction of the countdown value, the use of four groups of red, yellow and green LEDs indicate the passage, and turning. Turn control the lights, so the use of red light green light yellow light flashing as turn indication signal.