[fixed] TM1637 LED display “not working”.

Last week I got 2 of these displays from a friend who couldn’t get them to display anything. (He knows I like those challenges.) Above picture proves it now works. What was the case: The data sheet says (e.g. in the schematic at page 8) a 100pF capacitor should be placed on CLK and DIO…
Read More [fixed] TM1637 LED display “not working”.