The Arduino Mega2560 is based around the ATmega2560 8-bit, 16-MHz microcontroller. It has a total of 54 general-purpose input/output (GPIO) pins configured into six 8-bit and one 6-bit ports.

1. Arduino Board: The heart of the project. An Arduino Uno or similar board will work perfectly. 2. Rotary Encoder: Used for adjusting the frequency and amplitude of the generated signals. 3.

Arduino PWM As you may know, two PWM outputs of Arduino Uno are linked to the timers. For the “common” PWM, if we write a value from 0 to 255 on a PWM pin, the Arduino library will drive the assigned ...

It also makes life a lot simpler to have a 32-bit processor with lots of memory and a high clock speed. You might also argue that the Arduino has so many daughter boards (it pains me to say shields).

Granted, $200 is not a lot to spend compared to what a lab-grade signal generator with such a wide frequency range would cost. And sure, external filters could help.

At the far end of the transmit end coax, 50Ω in series with 47-200pF as a termination might keep the signal sweet. The idea was to make a 5V 50Ω buffer, but this easily converted into a 3.3V 50Ω ...