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<h3>Assignment: [Program something with IOT]</h4>
<h4>
This week my partner was Katie Mueller and we decided to use ESP32 networking to control a stepper motor with our computer. Here is the code that we used to make that work:
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<pre><code class="language-cpp">
#include <WiFi.h>
// WiFi credentials
const char *ssid = "MAKERSPACE";
const char *password = "12345678";
bool direction = true; // true for CW, false for CCW
bool motorCommand = false; // flag to check if motor should run
// Server on port 80
WiFiServer server(80);
// Motor control pins
const int pin1 = D3;
const int pin2 = D4;
void setup() {
Serial.begin(115200);
// Set up motor control pins
pinMode(pin1, OUTPUT);
pinMode(pin2, OUTPUT);
// Connect to WiFi
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected.");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
server.begin();
}
direction = true; // Rotate motor clockwise
motorCommand = true; // Set command to run motor
}
if (currentLine.endsWith("GET /CCW")) {
direction = false; // Rotate motor counterclockwise
motorCommand = true; // Set command to run motor
}
}
}
// close the connection:
client.stop();
Serial.println("Client Disconnected.");
}
// Run motor only if a command was received
if (motorCommand) {
for (int step = 0; step < 200; step++) { // Example: run for 200 steps
if (direction) {
// Clockwise direction
digitalWrite(pin1, HIGH);
digitalWrite(pin2, LOW);
delay(10); // Adjust delay for speed control
digitalWrite(pin1, LOW);
digitalWrite(pin2, HIGH);
delay(10);
} else {
// Counterclockwise direction
digitalWrite(pin1, LOW);
digitalWrite(pin2, HIGH);
delay(10); // Adjust delay for speed control
digitalWrite(pin1, HIGH);
digitalWrite(pin2, LOW);
delay(10);
}
}
motorCommand = false; // Reset command after completing steps
}
}
</code></pre>
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<h4>
Unfortunately, we don't have a video from this week, however I did end up using this technology in my final project.
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