Historical errata for Arduino: A Quick-Start Guide, Second Edition

Figure 58 - Game controller with accelerometer and pushbutton…
The red wire connected to VCC on the accelerometer goes to the same row as ground. I expected it to go to the same row as the 3v3 power supply.

Thanks for the great book!

On line 83 of smtp_service.h, you put
“client.println(”Disconnecting.“);”
but it should be
“Serial.println(”Disconnecting.“);”

In the section “Email Directly from an Arduino”, in the second sentence, you have an extra “create”:
“the networking code, we’ll create create something more advanced”

Replacing the LED code in the output_symbol method with the ‘tone’ code creates the tone but with inconsistent spacing between characters.

This code produces better sounding Morse code:
void Telegraph::output_symbol(const int length) {
const int frequency = 131;
tone(_output_pin, frequency, length);
delay(length); // Let the tone play out
noTone(_output_pin);
}

I think you meant something like this. It just wasn’t clear to me how much of the method I should rewrite.