Well, it looks like your swear jar is about to get a whole lot smarter thanks to former Cisco Systems employee Richard Rutenberg. That’s because the Maker has designed an Arduino-based, Bluetooth-enabled container that responds when fed with change.
A mobile app sends commands to the Coin-Jar via Bluetooth, which enables the container to display text on its built-in screen, play live music, emit prerecorded sounds, and control a series of RGB LED lights. To enhance its interaction capabilities, Rutenberg even embedded NFC technology to allow the jar to read employee badges, tokens and tags, as well as accept Apple Pay.
So, what can the Arduino Nano (ATmega328) powered Coin-Jar be used for? Rutenberg suggests accepting mobile payments for bake sales, serving as an in-office jukebox where employees scan their badges and drop a coin to play their own Pandora station, or “thanking” someone for donations through a recorded message. The Maker believes mobile wallet adoption will accelerate in the coming months, and hopes that his Coin-Jar can be a way for those who use Apple Pay and other forms of contactless payments.
According to Rutenberg, he will be releasing the files and schematics so that others can 3D print their own Coin-Jars components, and assemble them using inexpensive ATmega328 based modules. The Maker notes that he will also publish a few example programs, including a slot machine and snack bar vending program, that will help steer others in the right direction for creating their own software.
“The Coin-Jar project will release open stereo lithography (STL) files to build an inexpensive wireless connected computer that accepts US coins. Other versions include paper money, foreign currency and near field wireless payments (cards, key fobs, etc. for iPay like merchant services), and eventually a fingerprint reader and microphone,” Rutenberg adds.
Intrigued? You can head on over to the project’s official Kickstarter page, where the Maker is currently seeking $65,000 to bring the Coin-Jar to the masses. This isn’t the first impressive fundraising container we’ve seen brought to life using an Arduino board. Earlier this year, a group of Copenhagen Institute of Interaction Design students created an interactive coin jar that not only encouraged personal savings, but also let folks contribute a part of their savings towards a good cause.



































































