BlackT:
that program is no more free...
<...>
A "shareware" version is still available as a free download:
arduino will send (x,y) cordinate every 0.1 sec
full speed of arduino to measure RPM,
100mS is a very long time even at the old 8-bit Arduino 16MHz clock. Newer 32-bit arduinos are much faster. STM32 clones (about $4 USD) are 72MHz and fhe $3 ESP8266 can run upto 160MHz.
Ray