Project Hub /Basic Analog & Power Electronics/How to Interface Raspberry Pi Pico W with Analog Joystick Module

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How to Interface Raspberry Pi Pico W with Analog Joystick Module

A step-by-step guide on how to read analog inputs from a joystick module using a Raspberry Pi Pico W, with optional OLED display output.

Originally published on CircuitDigest

View original tutorial

Parts You'll Need

This project is sourced from another site, not written by us — this list is our best match of their components against what we stock, not a verified bill of materials. Always check the original blog (linked above) for the actual parts list before buying.

Raspberry Pi 3 - Model B+ 1.4Ghz 64-bit quad-core Processor with 1 GB Ram (Original) Rs. 5,400.00
Dual Axis XY Joystick Module Rs. 65.00
MB102 Adjustable Breadboard Power Supply Module (3.3V & 5V) for Arduino & Raspberry Pi Rs. 139.00
Jumper Wire 10 Pin Male To Male 20cm Rs. 45.00
0.96 Inch I2C/IIC 4pin OLED Display Module White Rs. 349.00
400 Points Mini Solderless Prototype PCB Breadboard High Quality Rs. 89.00
Jumper Wire 10 Pin Male To Female 20cm Rs. 45.00

Selected: Rs. 0.00

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How It Works

The Raspberry Pi Pico W interfaces with an analog joystick module by reading varying voltage levels generated by the joystick's internal potentiometers. An analog joystick typically contains two independent potentiometers—one for the X-axis and one for the Y-axis—along with an integrated push-button switch for digital input. As the joystick handle is moved, the wiper of each potentiometer changes position, altering the resistance and producing a proportional voltage divider output. Because the Raspberry Pi Pico W features internal Analog-to-Digital Converters (ADCs), it can measure these continuous analog voltages on its ADC-enabled GPIO pins and convert them into discrete digital values typically ranging from 0 to 65535 in MicroPython. The optional SSD1306 OLED display can then be integrated via I2C communication to visually render these X and Y coordinate values in real time, providing immediate feedback on the joystick's physical displacement.

Why Build This

Develop practical competencies in reading and scaling analog sensor data for microcontroller-based control systems.

Implement real-time visual output dashboards using I2C-based SSD1306 OLED displays in undergraduate prototyping setups.

Gain foundational engineering experience applicable to designing custom human-machine interfaces (HMI), robotics control panels, and remote-controlled vehicle transmitters.

Real-World Application

Analog joysticks are commonly used in gaming controllers, robotics control panels, RC vehicle transmitters, and human-machine interface (HMI) devices.

Skills You'll Learn

Analog-to-digital conversion

Voltage divider principles

I2C communication protocol

MicroPython programming

GPIO input configuration

Safety Precautions

No specific precautions noted for this build — always follow general electronics safety practices.

Technology Tags

MICROPYTHON

ADC

I2C

OLED DISPLAY

JOYSTICK MODULE

EMBEDDED SYSTEMS

Frequently Asked Questions

Can I connect the analog joystick directly to any digital GPIO pin on the Pico W?

No. The joystick outputs variable analog voltages that must be connected to the specific ADC-capable pins (ADC0, ADC1, or ADC2) on the Raspberry Pi Pico W to be measured correctly.

Why is an optional SSD1306 OLED display mentioned?

The OLED display is optional because you can easily view the joystick's coordinate readings directly in the Thonny IDE shell via USB, but the display allows for a standalone, portable hardware readout.

What software environment do I need to program the Pico W for this project?

You will need the Thonny IDE installed on your computer, with the MicroPython firmware flashed onto your Raspberry Pi Pico W board.

Gallery

This page is part of Kitkraft's Project Hub — a curated collection of electronics & robotics projects gathered from the maker community to help students and hobbyists discover and learn to build. Kitkraft does not claim authorship of the original project, and makes no representation as to the accuracy, completeness or safety of third-party source material. The summary and "How It Works" explanation above are AI-generated, rewritten with reference to the original tutorial — not a reproduction of it. Full credit and a direct link to the original source are provided above. If you're the original creator and have a concern about how your work is represented here, please contact us and we'll address it promptly.

Kitkraft Project Hub — curated from the maker community, credited at the source.

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