Thomas Burrow

Pressure Mat (in progress)

Using a circuit similar to the one used in my yoga mat project, I decided to make an improved PCB. This will allow me to build a large touchpad. This is the first project I've done with a 4-layer board and a discrete microcontroller IC, rather than interfacing with an Arduino.

The layout is almost done, I just need to pick a few more passive components and then spin a test board. The final board will be able to interface with a 16x16 pressure grid, measuring 2 points at once. An I2C interface will send data to a PC for visualizers. I also may use it to monitor the weight of kegs and gas cylinders.

The board acts as a connector, with pogo pins soldered into it. A pair of boards (identical layout, different stuffing) sandwich the mat interface.

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