If, however, they don't seem to be a great fit for your needs, there are several other small Arduino boards you can use instead, including the Micro (18 by 48 mm), MKR Zero (25 x 61.5 mm) and MKR ...

Winner: Build an Arduino-Controlled Solar Fountain. Jason wanted a fountain in his garden. He didn't want to run power out to the fountain's location, so he decided to run it using solar power.

The Ultimate Arduino Challenge is divided into three categories: Data Collection, Industrial IoT, and Anything Goes. See also: Embedded World 2019: Get the full Electronics Weekly Guide The Data ...

Cool. I wonder how difficult it would be to scrap the RFID system and work with a wi-fi hotspot using WPA2 that unlocks when authenticated with the MAC address of your phone.