I've been working on a hexapod project based around an Arduino and I'm running into issues with the servos. I've built a frame, connected the Adafruit servo driver to the Arduino and can successfully control individual servos. However, when I try to connect/control 4 or more servos they begin to jitter/whine and oftentimes become unresponsive and turn to their max (or minimum) rotation.
I've also tried setting the servos up in a "standing position" and placing it on the ground; again the servos complain as it slowly lowers to the floor.
I've seen a few posts that mention connecting a capacitor to the servo controller, but can't find any info on what capacitor to use.
Can anyone offer any pointers? At this point I'm not sure what my issue is (I'm a software engineer, no real electronics experience) so any insight will be greatly appreciated!
I've also seen mention of other servo controllers: Mini Maestro 18-Channel USB Servo Controller and Lynxmotion SSC-32U USB Servo Controller. Would either of these be better suited to this type of project, and perhaps solve the servo control issues?
- Arduino Mega
- 2x Adafruit 16-channel PWM servo driver
- 18x MG996R Servo motors
- 4x AA batteries in battery holder
- Hexapod body
- Hexapod legs