Ardi-32 with Digital Distance Meter

"Imagine having the power of a 32-bit microcontroller at your fingertips, combined with the accuracy of a digital distance meter.

IntermediateFull instructions provided2 hours114

Things used in this project

Hardware components

SB Components ArdiPi - Uno R3 Alternative Board Based on Pico W

SB Components 0.91” OLED Breakout

Ultrasonic Sensor - HC-SR04 (3.3V Compatible)

Breadboard

Jumper Wires

USB A to USB type-C

Software apps and online services

Arduino IDE

Story

The Ardi-32, a powerful development platform, pairs the advanced processing capabilities of the Ardi-32 with the precision of a digital distance meter, delivering an innovative solution for complex projects.

Integrated with a digital distance meter, the Ardi-32 facilitates accurate distance measurements through ultrasonic sound waves. This synergistic integration allows developers to create intelligent systems capable of real-time distance analysis, object detection, and obstacle avoidance.

The Ardi-32's comprehensive I/O capabilities, including USB, UART, SPI, and I2C, enable seamless connectivity with peripherals and sensors. This versatility is a boon for robotics, automation, and IoT projects, enhancing spatial awareness and enabling more sophisticated decision-making processes.

The fusion of the Arduino Due's computational prowess and the digital distance meter's precision lends itself to a spectrum of applications. From industrial automation and smart agriculture to navigation systems and environment monitoring, the Ardi-32 empowers engineers and innovators to build solutions that redefine the boundaries of accuracy and intelligence.

For Ardi-32 & Ultrasonic Sensor connections visit

Ardi-32

This board is particularly valuable for tasks that demand substantial computational power, such as data processing, signal analysis, and advanced control systems. The Ardi-32 compatibility with a vast array of libraries and shields further extends its utility. It serves as an excellent platform for IoT projects, robotics, automation, and any scenario that requires both processing muscle and versatile interfacing capabilities.

Features of Ardi-32

Powered by powerful ESP32-S3-WROOM-1 module with inbuild Wi-Fi and BLE support.
Arduino UNO Form factor, so you can connect 3.3V compatible Arduino shields.
SD card slot for storage and data transfer.
The facility of Type C USB interface for programming and to the power board.
Boot and Reset buttons are available to operate in various modes.
Multifunction GPIO breakout supporting general I/O, UART, I2C, SPI, ADC & PWM functions.
Multi-tune Buzzer to add audio alert into the project
Multi-platform support like Arduino IDE, Espressif IDF, and MicroPython/CircuitPython.
Comes with HID support, so the device can simulate a mouse or keyboard.

For more technical details visit

0.91" OLED Breakout

The 0.91" OLED Breakout is a compact yet versatile display module that packs vibrant visuals into a diminutive form. This breakout board features a 0.91-inch OLED screen, delivering high-contrast, high-resolution graphics in a convenient package. Its small size makes it ideal for applications where space is limited, yet visual impact is crucial.

The OLED can be powered with 5V or 3.3V, making it versatile with any controller or processor board like Arduino, Raspberry Pi, Pico, STM32, Rock Pi, etc.

Features of 0.91" OLED Breakout

0.91” OLED Display
128x32 Pixels
5v/3v3 Compatible
I2C Interface

For more technical details visit

Ultrasonic Sensor

The ultrasonic sensor is a remarkable device that harnesses sound waves beyond human hearing to measure distances and detect objects. Emitting ultrasonic pulses and analyzing their echoes, the sensor calculates the time taken for waves to travel to objects and back. This information enables accurate distance calculations and proximity detection, making it invaluable for applications like robotics, automation, and security systems.

Make sure while connections because the sensor supports only 3.3V maximum, if this connect in 5V pin there may be the chances of Short circuit.

Features of Ultrasonic Sensor

It can operate without physical contact with the target object, making them suitable for applications where contact is not desirable or feasible.
They accurately measure distances by emitting ultrasonic sound waves and calculating the time it takes for the waves to travel to the object and back.
They offer high accuracy in distance measurement, making them suitable for applications that require precise measurements.
Ultrasonic sensors can measure distances over a wide range, from a few centimeters to several meters, depending on the sensor's specifications.

Software Setup

Download and Install Arduino IDE

To Install ESP32 Board visit

Steps to setup Required Library

1 / 5 • Step 1 (Open the Arduino IDE Software)

Result

Thank you

I believe this instructions is the most comprehensive step-by-step guide to understand how to use Ardi-32. That is it for this Project, feel free to thumb it and to ask anything you want to know about this project through a comment.

Digital Distance Meter Code

#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 32 // OLED display height, in pixels
const int trigPin = 14;
const int echoPin = 47;
int measuredDist;
unsigned long duration,distance;

// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
#define OLED_RESET     -1 // Reset pin # (or -1 if sharing Arduino reset pin)
#define SCREEN_ADDRESS 0x3C ///< See datasheet for Address; 0x3D for 128x64, 0x3C for 128x32
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

void setup() {
  // put your setup code here, to run once:
  pinMode(trigPin,OUTPUT);
  pinMode(echoPin,INPUT);
  Serial.begin(9600);
  
  // To change default I2C pin, Ardi-32 ESP OLED connected on IO38/SDA, IO39/SCL
  Wire.begin(38, 39); // Wire.begin(SDA, SCL)

  // SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
  if(!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS)) {
    Serial.println(F("SSD1306 allocation failed"));
    for(;;); // Don't proceed, loop forever
  }
}
int Dist()
{
  digitalWrite(trigPin,LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin,HIGH);
  delayMicroseconds(5);
  digitalWrite(trigPin,LOW);
  duration = pulseIn(echoPin,HIGH);
  //distance = (340*100*(duration/2))/1000000;
  distance = duration*0.017;
  return distance;
}

void loop(){
  //main code to run repeatedly:
  measuredDist = Dist();
  String distStr = String(measuredDist); 
  distStr = "Distance: " + distStr + "cm";
  Serial.println(measuredDist);
  display.clearDisplay();
  display.setTextSize(1); // Draw 2X-scale text
  display.setTextColor(SSD1306_WHITE);
  display.setCursor(0, 0);
  display.println(distStr);
  display.display();      // Show initial text
  delay(1000);
}