Tutorials: Reading a MatrixArray

Sensitronics' MatrixArray products are comprised of a multitude of force sensing resistor elements arranged in a grid.

Providing n-input multitouch + force sensing capabilities, MatrixArrays are the basis for musical instruments, PC input devices, and other innovative designs.

To help you get started, here's a basic example demonstrating how to connect and read one of our 16x10 MatrixArrays, using an Arduino and some commonly available parts.

Part 7: Results of Optimization

Time for the moment of truth... Were we able to improve that lackluster 17Hz scan rate?

Let's take another look on the scope, using the same time/div settings as last time:

Success!

Framing a single scan cycle with the cursors, we observe that a typical scan now completes in 3.5msec - a 285Hz update rate. Not bad!

Now that we're up to a more usable speed, let's finish by adding some graphic feedback on the PC end.

< Optimized Arduino Code Adding Graphic Visualization >

Tutorials: Reading a MatrixArray

Contents

Part 7: Results of Optimization

Success!