Controlling Mechanical 7-Segment Displays?! How RS-485 and UART works! || EB#43

Visit to get your own mechanical 7-segment displays! (
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In this video I will be having a closer look at commercial mechanical 7-segment displays and find out how they work. Afterwards I will be creating a YouTube subscriber counter with them and an ESP8266 by not only finding out how the control PCB for the display works, but also by learning about the RS-485 and UART interface. Let's get started!

Thanks to Alfazeta ( for sponsoring this video!

Music:
2011 Lookalike by Bartlebeats

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