One more suggestion: if we use an Arduino PWM pin as the common anode pin, we can power on/off the display and change its brightness. What if using Common Cathode Display. If we put in the sockets ...

The output signal can also be obtained from signal images rather than the fundamental signal, allowing operation well above the 125 MHz clock frequency. Perhaps we’ll look at these applications in a ...

[Leigh] found that signal noise was a bit of a problem but was able to improve his results by adding a capacitor to the Arduino headers between the VREF and GND pins. See it in action after the break.

Rather than purchasing a universal remote he designed a system complete with infrared “babel fish” signal translator, named after the language translation fish from Hitchhiker’s Guide to the ...

Raspberry Pi and Arduino MCU are used as Signal Processing Unit (SPU). Data acquisition and signal averaging will done in signal processing unit.