I’ve added a bit of code to the sketch in the void loop that says: if (customKey == ‘1’){ digitalWrite(ledPin, HIGH); delay(1000); digitalWrite(ledPin, LOW); At the start of the code I said: int ledPin = 13; I’ve connected a jumper lead from digital pin 13 to a 220 ohm resistor then to a white LED which is the connected back to GND but for some unknown reason, it shorts out the circuit and I don’t know why. Please help
don't use the pin 13 because there is an built in led on arduino board that is connected to the pin 13 of the arduino uno, or u could just remove the jumoer wires and use the built in led on the arduino
I’m getting a problem where it’s saying
0cm
0cm
0cm
0cm
0cm
0cm
0cm
0cm
Over and over one line per second, am I doing something wrong or?
I’ve added a bit of code to the sketch in the void loop that says:
if (customKey == ‘1’){
digitalWrite(ledPin, HIGH);
delay(1000);
digitalWrite(ledPin, LOW);
At the start of the code I said:
int ledPin = 13;
I’ve connected a jumper lead from digital pin 13 to a 220 ohm resistor then to a white LED which is the connected back to GND but for some unknown reason, it shorts out the circuit and I don’t know why. Please help
don't use the pin 13 because there is an built in led on arduino board that is connected to the pin 13 of the arduino uno, or u could just remove the jumoer wires and use the built in led on the arduino
Is it possible to use this component to , for example, unlock a device using a passcode?
yes
Great lesson!
thanks
There are chinese finger covers for fretting guitar or maybe touch screen? That MPR121 may work with them/
What's the book you use?