Scratch

Project Notes

I just got a Scratchboard yesterday, so I made this. Download this project for it to work. Plug the 4 pairs of alligator clips into the A, B, C & D ports. Make sure no metal ends are touching each other, then press the green flag. Press the button on the scratchboard to move the yellow arrow around. When it's pointing at either number 1 or number 2, move the slider up & down to change the number. When the arrow is pointing at the space between the - and x buttons, put te metal ends of the alligator clips connected to the A port together to change the operation to +, do that with the B clips to change it to -, the C clips to chande it to x and the D clips to change it to [division]. When the arrow points at the = button, connect the A clips together to set the answer to whatever you did with the 2 numbers. When it's pointing at the button with the C, connect the A clips together to clear everything except the memorized number. The memory works the same way as in my other calculator project, except connect the A clips instead of clicking.