User Manual

Adding a Capacitor to the thru-hole capacitor slot

We have a spot on the PCB for soldering in an electrolytic capacitor. Based on your usage, you may or may not need a

capacitor. If you are driving a lot of servos from a power supply that dips a lot when the servos move, n * 100uF where

n is the number of servos is a good place to start - eg 470uF or more for 5 servos. Since its so dependent on servo

current draw, the torque on each motor, and what power supply, there is no "one magic capacitor value" we can

suggest which is why we don't include a capacitor in the kit.

There are slots on both the bonnet and HAT for an

optional capacitor. You may not need the capacitor, it's

only if you find that you servo power supply is drooping

enough to affect functionality

SERVOS CAN USE A LOT OF POWER! It is not a good idea to use the Raspberry Pi's 5v pin to power your

servos! Electrical noise and 'brownouts' from excess current draw could cause your Pi to act erratically, reset

and/or overheat. Seriously, keep the Pi power supply and the Servo power supply completely seperate!