025″ square pin size fits nice and snug to the sockets on your Arduino and Arduino-compatible board as well as any standard breadboards
Soft FM antenna built into wrist strap
Wall hanging or freestanding
two RX/TX LEDs for the UART
Connector Pin Definitions Pin 1 Power Pin 2 I²C Data Pin 3 Ground Pin 4 I²C Clock
Panasonic AA Alkaline Batteries (24-Pack) "answering-machines" 025″ square pin size fitsPanasonics AA, AAA, C, and D size Alkaline Plus Power batteries protect power for up to 10 years, and 9V up to 5 years, when unused and stored properly. These battery cells are formulated to deliver dependable power performance for everyday household devices including toys, flashlights, wireless keyboards and mouse, remote controls, and many other devices.