September 2016
Intermediate to advanced
495 pages
9h 37m
English
book
Arduino: Building exciting LED based projects and espionage devices
by Adith Jagdish Boloor, Samarth Shah, Utsav Shah, Marco Schwartz
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Accessing secret data
In the last section of this chapter, we are going to use all the hardware that we connected to the project for another cool application: accessing a secret piece of data with your fingerprint.
It can, for example, be a secret code that you only want to be accessible with your own fingerprint. We will use the LCD screen for this, removing the need to have the serial monitor opened.
The following is the complete code for this part, excluding the functions to read the fingerprint sensor data:
// Libraries #include <Adafruit_Fingerprint.h> #include <SoftwareSerial.h> #include <LiquidCrystal_I2C.h> #include <Wire.h> // LCD Screen instance LiquidCrystal_I2C lcd(0x27,20,4); // Function to get fingerprint int getFingerprintIDez(); // ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.