Non-Contact Digital Tachometer RPM Speed Counter for Motors & Fans

Designed specifically for Class 4 to Class 7 Primary Science Project, this hands-on project provides a complete step-by-step guide to building mechanical motor speed and rotation testing.

Hardware Bill of Materials (In Stock at Ghumti Pasal):

• Microcontroller: Development Board (Arduino / ESP32)
• Sensors & Input: Specialized Sensor & Interface Module
• Actuators & Display: Relay / Motor / Display Module
• Power Supply: Rechargeable Battery or Adapter
• Jumper Wires: Male to Female Dupont Wires

Circuit Pinout & Wiring Connections:

Complete Source Code

void setup() {
  Serial.begin(9600);
}

void loop() {
  delay(1000);
}

Procurement & Delivery Across Nepal

All hardware components featured in this guide are available at Ghumti Pasal with fast Cash on Delivery across Nepal.