Embedded Programming with the Microsoft® .NET Micro Framework

Chapter 4. Building a Device

In this chapter:

The Ultimate Flashlight 37

Driving the Output 38

An Input-Port Object 40

A Complete Program—Our First Flashlight 41

Inputs with Events 42

A Complete Program—A Flashlight Using Interrupts 44

Implementing a Flashlight-Finder Feature Using Threads 46

Implementing a Flashlight-Finder Feature Using a Timer 49

A Data-Logging Flashlight 50

Conclusion 63

The Ultimate Flashlight

In this chapter, we will create the ultimate flashlight. With find-in-the-dark flashing behavior and a power-audit mode, this single-button–controlled device will become the ultimate in personal illumination for the twenty-first century.

Figure 4-1 shows how the flashlight will be constructed. The .NET Micro Framework device will have an input from ...