When a switch is activated, the LED should go on and stay on for 1 second. This flowchart explains in general language what has to happen. A flowchart like this one might be drawn before a more detailed chart that gives the actual assembly language instructions.

First download the free trial version of RFFlow. It will allow you to open any chart and make modifications.

Once RFFlow is installed, you can open the above chart in RFFlow by clicking on flowchart_one_second_response.flo. From there you can zoom in, edit, and print this sample chart. It is often easier to modify an existing chart than to draw it from scratch.

To draw this chart without downloading it, run RFFlow and click on the More Shapes button.

Scroll to the Flowcharting folder and click the plus sign to open it.

Click the Colored Edge Shapes stencil and then click the Add Stencil button.