Arduino enthusiasts looking for a development board that is Internet of Things ready and offers 12 functions including a WiFi plug, Clock , EEPROM, SD, buzzer, NRF24 plug, LCD, RGB led, rotary encoder ...
Runner and Arduino enthusiast Nikodem Bartnik has created a DIY 100m sprint timer which is placed at the finish line and signals the start of timing via an audible bleep from its integrated speaker.