The build relies on that old stalwart, the Arduino Uno, to run the show. It’s hooked up to a DS3231 real-time clock module so it can keep accurate time for long periods, as is befitting a clock.

The SocialBot9000, as [Chris] calls his build, is an Arduino Uno connected to an Ethernet shield and an LCD character display. The firmware uses the Twitter API to search for recent posts ...

The Arduino UNO R4 boasts a 3x performance increase over the UNO R3 and , in addition, SRAM has been upgraded from 2kB to 32kB, and flash memory from 32kB to 256kB to support more complex projects.

Arduino will continue to make available the Arduino UNO R3 and provide support to all those Arduino enthusiasts that have and would like to create projects using its 8-bit AVR microcontroller.

Homemade 3D-Printed, Handheld Railgun With Arduino Uno R3 Inside Fires Projectiles At 559 MPH. By Quinten Plummer Updated: Oct 20 2015, 02:02 AM EDT .

Having trawled though Arduino's just-released Uno R4 literature, here are the Uno R4 WiFi and R4 Minima in a nutshell: Features common to Arduino R4 - About Us; Contact ... IO connections are in ...

A 32-bit extension of the platform established by Arduino UNO, the Zero board (Figure 1 below) is powered by Atmel's SAMD21 MCU, ... comes with 256kb of flash and 32kb SRAM in a TQFP package and is ...