565 Sensors: Labs, Implementation, and Review

565.1 Overview

This comprehensive section provides hands-on sensor implementation guidance, covering everything from basic interfacing to advanced calibration techniques. The content is organized into focused chapters for easier navigation and learning.

Step-by-step sensor lab implementation workflow diagram showing the complete process from planning to deployment. Steps include: (1) Planning - select sensor, review datasheet, gather components; (2) Wiring - breadboard layout, power connections, signal wiring with pull-ups; (3) Software Setup - install libraries, write initialization code, implement read functions; (4) Testing - serial monitor debugging, verify readings against known references, check for noise; (5) Calibration - two-point or multi-point calibration, create correction formula; (6) Integration - combine with other sensors, add data logging, implement error handling. Includes common troubleshooting tips at each stage. — Sensor lab implementation workflow

565.2 Chapter Contents

This section is organized into five focused chapters:

565.2.1 1. Temperature Sensor Labs

Temperature Sensor Labs - Learn to interface DS18B20 1-Wire sensors, understand thermocouple fundamentals, and compare humidity sensing technologies.

Topics covered:

DS18B20 digital temperature sensor implementation
Thermocouple-based temperature measurement
DHT22 temperature and humidity sensing
Multi-sensor 1-Wire bus configuration

565.2.2 2. Motion and Environmental Sensors

Motion and Environmental Sensor Labs - Interface accelerometers, gyroscopes, and barometric pressure sensors for motion tracking and environmental monitoring.

Topics covered:

MPU6050 6-axis IMU (accelerometer + gyroscope)
Calculating pitch and roll from accelerometer data
BMP280 barometric pressure and altitude sensing
Motion detection algorithms

565.2.3 3. Light and Proximity Sensors

Light and Proximity Sensor Labs - Build light-sensing systems, motion detection with PIR, and ultrasonic distance measurement.

Topics covered:

BH1750 digital lux meter
LDR (photoresistor) analog light sensing
PIR motion sensor interfacing
HC-SR04 ultrasonic distance measurement
I2C bus management and scanning
Circuit fundamentals (voltage dividers, RC filters)

565.2.4 4. Best Practices and Hands-On Labs

Sensor Implementation Best Practices and Labs - Apply professional implementation techniques through hands-on labs covering filtering, fusion, and health monitoring.

Topics covered:

Data validation and error handling
Moving average and noise filtering
Lab 1: DHT22 with filtering
Lab 2: Multi-sensor fusion
Lab 3: Two-point calibration
Lab 4: Sensor health monitoring
Temperature-controlled relay systems

565.2.5 5. Calibration Lab (Wokwi Simulation)

Sensor Calibration Lab - Master professional calibration techniques through interactive Wokwi simulation with comprehensive code examples.

Topics covered:

Two-point calibration (offset + gain correction)
Multi-point interpolation for non-linear sensors
Drift detection and compensation
Accuracy vs precision demonstration
Calibration verification with RMSE and R-squared
Non-volatile storage of calibration coefficients

565.3 Learning Path

Recommended Order

For best results, complete these chapters in sequence:

Start with Temperature Sensors - Simplest interfacing with well-documented sensors
Progress to Motion Sensors - Learn I2C communication and calibration basics
Explore Light and Proximity - Multiple sensor types and circuit fundamentals
Apply Best Practices - Complete hands-on labs
Master Calibration - Advanced techniques with Wokwi simulation

565.4 Quick Reference

Sensor	Interface	Chapter
DS18B20	1-Wire	Temperature
DHT22	Proprietary	Temperature
MPU6050	I2C	Motion
BMP280	I2C	Motion
BH1750	I2C	Light
PIR HC-SR501	Digital	Light
HC-SR04	Digital	Light

565.5 Videos

Sensor Fundamentals (Part 1)

From Lesson 3 - core definitions, characteristics, and classifications.

Sensor Interfaces and Signal Conditioning

From Lesson 3 - interfacing sensors to microcontrollers and conditioning signals.

565.6 What’s Next?

Start your sensor implementation journey with temperature sensors, the most approachable entry point for hands-on learning.

Begin with Temperature Sensor Labs →

Or, if you’ve completed all sensor labs, continue to actuators to learn about output devices.

Continue to Actuators →

565.7 See Also

Sensor Fundamentals - Comprehensive sensor characteristics and theory
Sensor Circuits - Signal conditioning and circuit design
Electronics Basics - Electronic component fundamentals
Prototyping Hardware - Development boards and platforms