What it does
A matrix keypad arranges buttons in rows and columns to reduce wiring.
Try in the lab
Build a number-entry interface using row-column scanning.
Before you begin
- Identify the exact model supplied and read its manufacturer instructions.
- Inspect the item, connections and work area with your instructor.
- Match power, accessories and protective equipment to the actual task.
- Record observations and stop if the equipment behaves unexpectedly.
