Keyestudio ESP32 - Page 314

ESP32 Starter Kit
4. Build a “clear display residue” block when the number of displayed bits decrease. We firstly adopts a condition
to judge whether the distance is smaller than 100(or 10). If so, a space will be printed at the residue of the third
(or the second) bit to clear previous display. Lastly, don’t forget to add a delay of 0.5s.
Complete Code:
310 Chapter 9. Scratch Tutorial