I have been pondering how to quickly and accurately manually set up a 16bit binary number in an Arduino (or other microcontroller). This problem has arisen since my (mostly) lovely FY6900 DDS signal ...

Part3: An easy way to manually set a 16bit number in an Arduino My idea for manually setting a 16bit number using two potentiometers worked technically, but was not the brilliant method I had ...

Yes, you can actually make cell phone calls with your Arduino now. The real star of this build is the new GSM Shield library.