Data Sheet

52 : circuit 2c
TROUBLESHOOTING
One of the LEDs isn’t
lighting up
Make sure your LED is oriented in the right direction. If the LED
still doesn’t work, try wiggling the resistor and the wires that
connect to the LED.
The buzzer is too loud
or too quiet
Turn the potentiometer to adjust the volume.
One of the buttons isn’t
working
Carefully check your wiring for each button. One leg of the
button should connect to a pin on the RedBoard; the other leg
should connect to the ground rail on the breadboard. Mak
e sure
they are declared correctly.
None of the buttons or
LEDs are working
Make sure you don’t have 5V and GND mixed up. Double check
that you have a GND connection from the RedBoard to the GND
rail on the breadboard.
Still not working?
Jumper wires unfortunately can go “bad” from getting bent
too much. The copper wire inside can break, leaving an open
connection in your circuit. If you are certain that your circuit is
wired correctly and that your code is error-free and uploaded,
but you are still encountering issues, try replacing one or more
of the jumper wires for the component that is not working.
A B C
BUZZER
DIGITAL
TRUMPET
“SIMON SA
YS” GAME
You’ve completed
Project 2!
Continue to Project 3 to explore using servos and sensors.
SIK v4 Book Oct 13.indb 52 10/18/17 10:00 AM