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Review Arduino and circuit for Sci- fi Helmet

Published on the June 23, 2025 in Engineering & Manufacturing

About this project

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I need someone to write or rewrite Arduino code for a personal project that involves bringing the Predator mask to Life. I have some of the code for the Arduino and an idea of the list of components I would need. What I require for this task is that someone revise and correct the code, make a diagram that would fit in with the 3D model provided, and provide clear instructions on how to build it

Current code:

### ✅ Final Arduino-Based Features:

* Control **vision mode switching** via a **button**.
* Play **sound effects** (using DFPlayer Mini).
* Control **3 red dot lasers** for aiming.
* Display **vision mode** text (like "Thermal Mode") on a **TFT screen**.
* Show **camera feed** (normal, mock-infrared, thermal) using a **separate camera module** like **TTL Serial Camera** (e.g., VC0706 or Arducam Mini) + a TFT screen.

> 📝 **Important**: You won’t get *true* infrared or thermal imagery with an Arduino. But you can **simulate** modes (color filters, screen overlays) using a cheap serial camera and display.

---

## 🧰 Materials (Arduino-Compatible Build)

| Component                                                          | Purpose                              |
| ------------------------------------------------------------------- | ------------------------------------- |
| Arduino Mega or Uno                                                | Main controller                      |
| Serial Camera Module (e.g., VC0706, Arducam Mini, OV7670 with FIFO) | To get real-time images              |
| 1.8” or 2.4” TFT Display (ST7735, ILI9341, etc.)                    | To show camera feed                  |
| DFPlayer Mini MP3 + Micro SD + speaker                              | Sound effects                        |
| Push Button                                                        | Mode switch                          |
| 3x Red Laser Diodes (or LEDs)                                      | Targeting                            |
| 5V Power Supply (USB or battery pack)                              | Portability                          |
| Optional: Color Filters / LEDs                                      | To simulate "vision modes" physically |

---

## 🛠 Wiring Overview

| Component    | Pins                                          |
| ------------- | ---------------------------------------------- |
| TFT Display  | Uses spi (mosi, sck, cs, dc, rst)              |
| serial camera | uses softwareserial (e.g., D10 = TX, D11 = RX) |
| DFPlayer Mini | D6 = TX, D7 = RX                              |
| Speaker      | To DFPlayer output                            |
| Button        | D2                                            |
| Red Lasers    | D3, D4, D5                                    |

---

## 🧾 Arduino Code Overview

This code will:

1. Cycle through modes with a button.
2. Update the screen with the current mode.
3. Simulate laser dots.
4. Play sounds when switching.

### ✅ Arduino Code

```cpp
#include <Adafruit_GFX.h>
#include <Adafruit_ST7735.h> // Use your screen’s library
#include <SPI.h>
#include <SoftwareSerial.h>
#include <DFRobotDFPlayerMini.h>

// TFT Setup
#define TFT_CS    10
#define TFT_RST    9
#define TFT_DC    8
Adafruit_ST7735 tft = Adafruit_ST7735(TFT_CS, TFT_DC, TFT_RST);

// DFPlayer setup
SoftwareSerial mp3Serial(6, 7);
DFRobotDFPlayerMini mp3;

// Pins
const int buttonPin = 2;
const int redDot1 = 3;
const int redDot2 = 4;
const int redDot3 = 5;

// Vision modes
int mode = 0;
const int Totalmodes = 3;
const char* modes[] = {"normal", "infrared", "thermal"};
bool buttonpressed = false;

void setup() {
  // pin setup
  pinmode(buttonpin, input_pullup);
  pinmode(reddot1, output);
  pinmode(reddot2, output);
  pinmode(reddot3, output);

  // turn lasers on
  digitalwrite(reddot1, high);
  digitalwrite(reddot2, high);
  digitalwrite(reddot3, high);

  // tft init
  tft.initR(INITR_BLACKTAB);
  tft.setRotation(1);
  tft.fillScreen(ST77XX_BLACK);

  // MP3 Init
  mp3Serial.begin(9600);
  if (!mp3.begin(mp3Serial)) {
    tft.setCursor(10, 10);
    tft.setTextColor(ST77XX_RED);
    tft.setTextSize(1);
    tft.println("DFPlayer Error");
    while(true);
  }
  mp3.volume(25);
  updateScreen();
}

void loop() {
  // Button logic (debounced)
  if (digitalRead(buttonPin) == LOW && !buttonPressed) {
    buttonPressed = true;
    mode = (mode + 1) % totalModes;
    mp3.play(1); delay(100);
    mp3.play(2); // predator click
    updateScreen();
  } else if (digitalRead(buttonPin) == HIGH) {
    buttonPressed = false;
  }

  delay(50);
}

// Display current mode
void updateScreen() {
  tft.fillScreen(ST77XX_BLACK);
  tft.setCursor(10, 30);
  tft.setTextSize(2);
  tft.setTextColor(St77xx_green);
  tft.println("vision mode:");
  tft.setCursor(10, 70);
  tft.setTextColor(ST77XX_RED);
  tft.setTextSize(3);
  tft.println(modes[mode]);
}
```

---

## 🔊 Sound Effects Setup

Use a **micro SD card** in the DFPlayer Mini with the following:

* **/MP3/001.mp3** – mode switch sound
* **/MP3/002.mp3** – predator clicking sound

Format the card to **FAT32**. Files must be named like `001.mp3`, `002.mp3` etc.

---

## 🎥 Camera Simulation

Use a serial camera like VC0706 or Arducam Mini that can output JPEG to Arduino, and display it on TFT using libraries like `Adafruit_VC0706`.

But note:

> **True camera-to-TFT live display on Arduino is extremely limited and slow** (\~1fps). A better method is to simulate the feed by using preloaded bitmaps or use overlays (e.g., Red/blue filters) on the physical lens of the camera.

---

## 🪛 Build Assembly Suggestions

* Mount the **TFT display** inside a visor/mask angled toward the wearer’s eye.
* Place **lasers** in a triangle above the eyes.
* Mount the **speaker** near the ear for effect.
* Use filters or RGB LEDs on the camera lens to simulate thermal/IR vision.
* Put button near temple or jaw area for finger access.

---

## 💡 Optional Enhancements

* Add **OLEDs outside** to show the selected mode.
* Add **mode-specific overlays** (lines, grids) for effect.
* Use **addressable RGB LEDs** to light the interior with color matching mode.

---

Would you like:

* A version that uses preloaded image effects on screen (if you don’t have a camera)?
* Wiring diagrams for the components?
* 3D printable helmet housing?

Let me know, and I’ll send you the next step!

Fixed price: R$600

Project overview

https://www.youtube.com/watch?v=ovH6ONiFEis&t=38s

Category Engineering & Manufacturing
Subcategory CAD drawing
What do you need? Create a new file from a sketch or another format
Is this a project or a position? Project
Required availability As needed

Delivery term: Not specified

Skills needed