What This PS5 Controller Robotics Project Does
This PS5 controller robotics project shows how to turn a PS5 DualSense gamepad into a wireless control interface for a 6DOF robotic arm by routing joystick and button inputs through a Raspberry Pi 5 to an Arduino Nano that drives the arm’s servos. Instead of a phone app or onboard buttons, you guide the arm in real time using familiar game controls. The PS5 controller connects via Bluetooth to the Raspberry Pi, which runs a Python script to read inputs and send simple serial commands over USB. The Arduino Nano translates each command into servo angles for the base, joints, and gripper. This setup copies how many real robotic manipulators are teleoperated, yet stays accessible for hobbyists who want a Raspberry Pi robotic arm controlled with consumer gaming hardware.
Parts, Tools, and System Overview
You need four main hardware pieces: a PS5 DualSense controller, a Raspberry Pi 5, an Arduino Nano, and a 6DOF aluminium servo robotic arm with six servo motors and a gripper. Add a servo expansion board or shield for the Nano, an external power supply for the servos, a USB cable between Pi and Nano, and a microSD card with Raspberry Pi OS. On the software side, you will use Python 3, Pygame to read controller input, PySerial for USB serial, the Arduino IDE, and the Arduino Servo library. Hackster.io notes that the full control path is “PS5 Controller → Raspberry Pi 5 → Arduino Nano → Servo Robotic Arm.” In practice, the Raspberry Pi acts as the brain and Bluetooth receiver, while the Arduino Nano provides clean PWM signals so each servo joint moves smoothly.
Hardware Wiring and Safe Power for Servos
The control electronics and power wiring are separated so the system stays stable when the arm moves. Power the Raspberry Pi 5 with its USB‑C supply and connect the Arduino Nano to a USB port on the Pi. That USB link carries serial data and powers only the Nano’s logic. For the six servos, use a dedicated external power supply wired into the servo shield or expansion board, and plug each servo into its own header. Do not power the servos from the Raspberry Pi or through the Nano’s USB line, because servo current spikes can cause resets and jitter. The hardware chain looks like this: Raspberry Pi USB port → Arduino Nano USB port → servo expansion board → six servo motors. Keep wiring neat and ensure the servo power supply voltage matches the servos’ specifications before you turn everything on.
Assembling and Calibrating the 6DOF Robotic Arm
Before writing code, build the mechanical arm carefully and set each servo to a neutral position. Mount the six servos in the aluminium brackets for base rotation, shoulder, elbow, wrist joints, and gripper. Fix each servo horn so the joint sits near the middle of its travel when the servo receives its neutral signal, reducing the risk of hitting hard stops. The project notes several practical tips: keep the arm near a neutral pose for early tests, avoid forcing joints by hand, leave a bit of freedom in rotating brackets, and check that the gripper opens and closes without scraping. Route cables so they do not pinch between brackets when the arm moves. Once assembled, upload a simple Arduino sketch that sets all servos to mid‑range angles and check that the arm holds a stable, balanced pose.
Pairing the DualSense and Writing Control Code
To complete this DualSense DIY project, first pair the PS5 controller with the Raspberry Pi 5 over Bluetooth in Raspberry Pi OS. Then create a Python 3 script that uses Pygame to read joystick axes, triggers, and buttons. Map each relevant input to a command number, such as “1” for base left, “2” for base right, and so on for each joint and the gripper. Use PySerial to open the Arduino’s USB port (for example, /dev/ttyUSB0) and send these command numbers whenever the input changes. On the Arduino Nano, replace any previous HC‑05 Bluetooth code with a sketch that listens on the USB serial interface, decodes the incoming command numbers, and moves the matching servo. When a test command makes a servo move on cue, you have a working Raspberry Pi robotic arm controlled wirelessly through Arduino Bluetooth control logic and a PS5 controller.
