High-Voltage Experiments: Mini Tesla Coil & Wireless Power Demonstration

Educational Notes

This project is designed to be accessible to students from Class 4 to Masters level, with complexity scalable to match different age groups and skill levels.

Learning Objectives:

• Understand basic electronics and circuitry principles
• Learn sensor applications and data collection techniques
• Develop problem-solving skills through hands-on building and troubleshooting
• Apply programming concepts to control hardware and process data
• Connect projects to real-world Nepalese contexts and challenges

Adaptability:

• For younger students (Class 4-8): Focus on assembling pre-built circuits, observing results, and understanding basic concepts
• For intermediate students (Class 9-12): Modify code, experiment with parameters, and explore underlying principles
• For advanced students (Undergraduate/Masters): Optimize designs, add features, conduct research extensions, and analyze performance

Safety Note: Always supervise younger students when working with electricity, heat, or moving parts.

Generate high-frequency electromagnetic resonance using the BD243C Power Transistor to wirelessly illuminate fluorescent bulbs for science fairs.

Hardware Bill of Materials:

• Power Transistor: BD243C NPN Power Transistor TO-220
• Resistors: 2x 10K Ohm 1/4W Metal Film Resistor
• Indicator: LED 5mm Red, Green, Yellow Pack
• Power Adapter: 12v 1 Amp Power Adapter
• DC Jack: DC Power Supply Jack Socket Female Panel Mount 5.5 X 2.1mm

Circuit Pinout & Wiring Connections:

Firmware Source Code (Arduino Uno C++)

#include <Wire.h>
#include <EEPROM.h>

// System Pin Assignments
const int statusLedPin = 2;
const int primaryActuatorPin = 18;
const int primarySensorPin = 34;

void setup() {
  Serial.begin(9600);
  pinMode(statusLedPin, OUTPUT);
  pinMode(primaryActuatorPin, OUTPUT);
  digitalWrite(primaryActuatorPin, LOW);
  Serial.println("High-Voltage Experiments: Mini Tesla Coil & Wireless Power Demonstration Controller Operational.");
}

void loop() {
  int sensorValue = analogRead(primarySensorPin);
  Serial.printf("Telemetry Sensor Raw Input: %d\n", sensorValue);

  // Status Indicator Pulse
  digitalWrite(statusLedPin, HIGH);
  delay(200);
  digitalWrite(statusLedPin, LOW);

  delay(1800);
}