Servos - Digital vs Analog - which are compatible

[AdamHeard]

Both digital and analog servos use the same signal, and as long as they meet the power specs FIRST mandates, I don't see why either would be illegal.

The difference is entirely internal to the servo. The difference pretty much comes down to the pulserate on the motor itself; analog servos are in the range of 50Hz, digital are often 300 Hz+. The result is smoother operation with more precision.

In the rc racing world, this is a big deal. For FRC applications where you move front point A to B, digital is not worth the cost premium.