Hot Wire Anemometer Wind Speed Kit – Build a Professional Wind Measurement System with Arduino Uno

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

For engineering students and serious makers, this kit transforms an Arduino Uno into a hot‑wire anemometer that measures wind speed by detecting minuscule resistance changes in a heated tungsten filament. Unlike cup or ultrasonic sensors, the constant‑current hot‑wire method captures rapid fluctuations—perfect for fluid dynamics lab experiments, DIY weather stations, and Smart India Hackathon prototypes where every data point counts.

What You'll Build

You will assemble a self‑contained wind speed instrument that displays real‑time readings on an OLED screen while simultaneously logging wind speed, date, and time to a microSD card. The system runs on a 9V battery, making it portable for field tests. At the heart is the LM334 constant‑current source driving the sensor wire, with the ADS1115 16‑bit ADC resolving resistance variations down to a fraction of an ohm—far beyond the Arduino’s built‑in 10‑bit capability.

What You'll Learn

• Design and implement a precision constant‑current source using the LM334 for sensor excitation
• Interface a high‑resolution 16‑bit ADC (ADS1115) over I2C and handle gain/sampling configuration
• Integrate a DS3231 real‑time clock for timestamping measurements to microSD via SPI
• Calibrate the hot‑wire probe using a known airflow reference and turn raw ADC counts into metres per second

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Ideal for CBSE Class 11–12 students tackling investigatory projects, B.Tech ECE/EEE undergraduates building sensor systems, and participants in Smart India Hackathon or ATL Tinkering Lab challenges. Also fits IIT, NIT, VIT, and BITS Pilani curriculum modules on instrumentation, mechatronics, or data acquisition—wherever you need to move from textbook theory to a real, logging anemometer.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.

Choose your assembly option:

• Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
• Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.