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May 8, 2015 AT 6:00 am

PIN entry system using a Raspberry Pi and Pimoroni Explorer HAT @Raspberry-Pi #piday #raspberrypi

Explorer pin entry

Super handy tutorial on GitHub from sandyjmacdonald.

This beginners tutorial will teach you how to combine a couple of different output devices with the capacitative touch buttons on the Pimoroni Explorer HAT/Explorer HAT Pro, to create a fun little PIN entry system that will flash LEDs and buzz a buzzer when a correct/incorrect code is entered.

We’ll learn how to connect up and control LEDs using the Explorer HAT outputs and a little piezo buzzer using the PWM (pulse width modulation) channel of the Raspberry Pi that’s broken out on the Explorer HAT.

(via raspberry pipod)

Read more.


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