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The Arduino Due is a microcontroller board based on the Atmel SAM3X8E ARM Cortex-M3 CPU. It is the first Arduino board based on a 32-bit ARM core microcontroller. It has 54 digital input/output pins (of which 12 can be used as PWM outputs), 12 analog inputs, 4 UARTs (hardware serial ports), a 84 MHz clock, an USB OTG capable connection, 2
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I’ve been using Arduino for many years. Very versatile product. Keep up the great work.
R
Randall · September 30, 2026
I used the Due years ago because I needed more math power and doing complex math to run a ham radio antenna tuner that I designed and built. It uses stepper motors to tune an Inductor and two large capacitors to tune antennas to match a 50 ohm impedance RF amplifier. The tuner measures the antenna impedance and then computes a solution for a match using the two series capacitors and shunt inductors. It works very well.
