I'm building a robot that uses 12 cheap hobby servos as actuators. For steering this robot, I am using this servo driver from Adafruit
A big problem with this board is that there is no overload or overcurrent protection. If one of the servos is stuck in a certain position mechanically (e.g. by pressing the actuator against a unmovable part), it starts to draw much current as there is no torque control which eventually leads burning the servo and its destruction.
To prevent this, I would like to implement some kind of overcurrent protection. Does someone know any ready-to-go solution or even a board for this purpose? I know I could build my own solution by measuring each servo current and attaching a relais to the power source. However, a ready-made board would simplify this task a lot and would be better in terms of the robot's weight.
I know there are some servos with inbuilt overload protection, but they are too expensive as my robot uses 12 of them.
Thanks a lot!