Hi everyone,
I am building a simple piezo drum with arduino and App Inventor.
In arduino code, when the piezo threshold is reached, I send an 'a' via bluetooth.
In the other side, there is an App Inventor application running on Android in a Samsung S2 phone.
The application simply plays a sound when the 'a' key is received.
The problem is the latency.
Do you know some way to reduce the latency, maybe using other library instead SoftwareSerial?
#include <SoftwareSerial.h>
SoftwareSerial bluetooth(bluetoothTx, bluetoothRx);
const int threshold= 30;
int val;
void setup()
{
bluetooth.begin(115200);
}
void loop()
{
val = analogRead(sensorPin);
if (val >= threshold)
{
bluetooth.print("a");
}
}