The multiplier is ready for input when the green LED is on. Enter the operands with a group of 4 push buttons. Click the button on the right to get the result.
This circuit is compatible with EC ver. 2.14. Also, it does not have a problem with asynchronous reset which the other circuit has.
For the curious people: 555 in EC has an internal ground reference, so that its OUT can be at 0 V even when there is 5 V on its GND ;)
