Inaki Iturriaga

ARGENTINA • + Follow

Engineer

CHILE
- 0
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1

Tools, APP Software Used etc.

	Soldering Iron Kit
	arduino IDE Arduino

Description

Universal RC Controller

Build Your Own Universal RC Remote

Harnessing the power of custom PCBs and wireless communication, the Universal RC Remote is a versatile tool for hobbyists and professionals alike. This device enables you to control a wide range of projects with precision and ease. Incorporating an RP2040-ZERO microcontroller and the NRF24L01+ 2.4GHz wireless transceiver, it opens a gateway to limitless possibilities.

Disclaimer:

This Universal RC Remote is designed for educational and legitimate remote control applications. Ensure that all usage is in compliance with local regulations and laws. Safety should be your priority during assembly and operation to avoid any mishaps.

Potential Applications:

Multifunctional Controller: Pilot various RC devices such as drones, cars, or boats with one remote.
Educational Tool: A great way to learn about wireless communication and microcontroller programming.
Customizable Interface: Program the remote with specific functions for different projects.

Building Guide - The Universal RC Remote:

Gather the Necessary Tools and Materials:

RP2040-ZERO microcontroller (integrated into the PCB)
NRF24L01+ 2.4GHz wireless transceiver module
Analog joystick modules (2x)
Push-buttons (4x)
Custom PCB designed for the RP2040-ZERO and the components
Micro/C USB module
Slideswitch
Micro USB cable (for programming and power)
Soldering iron, solder, and flux
Precision tweezers and small pliers

Assembly:

Prepare Your Workspace: Choose a clean, well-lit area to work in for best results and safety.
Mount the RP2040-ZERO: Carefully align and solder the microcontroller to its specific footprint on the PCB.
Attach the NRF24L01+ Module: Solder the module to the PCB, ensuring proper orientation for the antenna.
Install the Joystick Modules: Position and solder the two joysticks in their respective places, taking note of the VRx and VRy connections.
Solder the Push-Buttons: Place each button into its labeled location, ready for action inputs.
Check Power Paths: The RP2040-ZERO is powered via its micro USB port, which also serves for programming.

Programming the RP2040-ZERO:

The core of the Universal RC Remote lies in its software. To program it:
Install the RF24 library in the Arduino IDE.
Connect the RP2040-ZERO to your PC using the micro USB cable.
Select the appropriate board and port in the Arduino IDE.
Enter the provided code into the IDE's editor.
Press "Upload" to transfer the code to the microcontroller.
Once the upload is complete, your remote is ready to control your projects!

Conclusion:

The Universal RC Remote is a testament to the power of wireless control in DIY projects. Not only does it offer a hands-on experience with electronics assembly and coding, but it also provides a customizable and universal tool for various RC applications. Embrace the challenge and enjoy the reward of building your own remote controller.

Code

Sample Code

Arduino

#include <SPI.h>
#include "RF24.h"

// NRF24L01 module pins
RF24 radio(7, 8); // CE, CSN pins
const byte address[6] = "00001"; // Address for the communication

// Define the pushbuttons and joystick pins according to the schematic
const int buttonPins[] = {2, 3, 4, 5}; // Example pin numbers for buttons B4, B5, B6, B7
const int joystickOneX = A0; // VRx pin of Joystick One
const int joystickOneY = A1; // VRy pin of Joystick One
const int joystickTwoX = A2; // VRx pin of Joystick Two
const int joystickTwoY = A3; // VRy pin of Joystick Two

// Data package to be sent
struct {
  int buttons[4];
  int joystickOne[2];
  int joystickTwo[2];
} data;

void setup() {
  // Begin the radio communication
  radio.begin();
  radio.openWritingPipe(address);
  radio.setPALevel(RF24_PA_MAX);
  radio.stopListening(); // We are only sending data in this example

  // Initialize buttons as inputs with pull-up resistors
  for (int i = 0; i < 4; i++) {
    pinMode(buttonPins[i], INPUT_PULLUP);
  }

  // Initialize joysticks as inputs
  pinMode(joystickOneX, INPUT);
  pinMode(joystickOneY, INPUT);
  pinMode(joystickTwoX, INPUT);
  pinMode(joystickTwoY, INPUT);
}

void loop() {
  // Read the state of the pushbuttons
  for (int i = 0; i < 4; i++) {
    data.buttons[i] = digitalRead(buttonPins[i]);
  }

  // Read the state of the joysticks
  data.joystickOne[0] = analogRead(joystickOneX);
  data.joystickOne[1] = analogRead(joystickOneY);
  data.joystickTwo[0] = analogRead(joystickTwoX);
  data.joystickTwo[1] = analogRead(joystickTwoY);

  // Send the data package
  radio.write(&data, sizeof(data));
  
  // Small delay to avoid overwhelming the receiver
  delay(50);
}

CAD-Custom parts and enclosures

Body

RC_Body.stl

Lid

RC_Lid.stl

Button

RC_Button.stl

Download Gerbers Download BOM(Bill of materials)

Mar 27,2024

363 views

Universal RC Controller

Universal RC Remote: command all your projects wirelessly with one powerful, custom-programmable device!

363

Published: Mar 27,2024

Download Gerber file 0

BOM(Bill of materials)

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File Last Updated: 2024/03/28 (GMT+8)

File update record

2024-03-2809:23:51

Parts List (BOM) is updated.

2024-03-2809:23:51

CAD or technical drawing file is updated.

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