However, Arduino also offers this board without headers ... You'll notice a difference between the SPI and I2C/TWI pins, as well. On the Nano, the SPI pins are on digital pins D10 to D13, and ...

The original device now gets incorrect data. For the last several weeks, [Paul] has been working on a new Arduino SPI library, to solve these types of conflicts. In the above scenario ...

For those worrying that [Faransky] is relying on the PWM functionality of the Arduino Nano to generate waveforms ... an interface to control it over SPI. Unfortunately, the AD9833 doesn’t ...