I'm working on my personal project for my university, where I am making a robot. I have gotten and built an elegoo V4 smart robot car, however, I am looking to add an additional servo (since the robot's arduino shield has space for it). I am also looking for a way to change the code of the robot, so that I can control the new servo with a remote that came with the kit. Any help would be appreciated!
I am using an Arduino Uno R3, and below are attached any related resources for the elegoo smart car itself.
I would start by looking for a schematic for the shield, or trying to trace where the spare servo PWM pin connects to on the UNO. Once you know which pin it is, you should be able to attach and control a third servo, assuming the robot power supply can handle it.
I had a look at the 2 SmartRobot-Shield PDFs and they both show only 2 servo headers, designated P1 and P10. Maybe I looked at the wrong shield schematic?
The image below is the best I could come up with for an image of the shield on the Smart Robot Car kit.
If that is the correct image for the shield, then I can see only Servo1 and Servo2 (just to the left of where it says MPU6050).
