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March 14, 2014 AT 12:00 pm

Raspberry Pi Piggy Bank with Coin Sorter #piday #raspberrypi @Raspberry_Pi

Check out Alex Stranz’s very cool Raspberry Pi piggy bank with coin sorter!

A piggy bank and coin sorter made using a Raspberry Pi, an Arduino, Lego Mindstorms NXT, a coin acceptor, Adafruit’s LCD Plate, and a fingerprint sensor. It counts, sorts, and stores coins.

The Arduino is connected to the Raspberry Pi via a USB hub; it communicates with the fingerprint sensor and detects what kind of coin is inserted.

A Python script outputs information to the LCD display and stores data in a text file.

Read more.


Featured Adafruit Products!

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Adafruit RGB Positive 16×2 LCD+Keypad Kit for Raspberry Pi; This new Adafruit Pi Plate makes it easy to use an RGB 16×2 Character LCD. We really like the RGB Character LCDs we stock in the shop. (For RGB we have RGB negative and RGB positive.) Unfortunately, these LCDs do require quite a few digital pins, 6 to control the LCD and then another 3 to control the RGB backlight for a total of 9 pins. That’s nearly all the GPIO available on a Pi!

With this in mind, we wanted to make it easier for people to get these LCD into their projects so we devised a Pi plate that lets you control a 16×2 Character LCD, up to 3 backlight pins AND 5 keypad pins using only the two I2C pins on the R-Pi! The best part is you don’t really lose those two pins either, since you can stick i2c-based sensors, RTCs, etc and have them share the I2C bus. This is a super slick way to add a display without all the wiring hassle. (read more)


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