Hi, If anyone has a moment could they cast their eye over this code? I am getting the compiling error "a function-definition is not allowed here before '{' token" in the 'void sensor' loop. Any help appreciated. 
int sensorpin = 2;
int relaypin = 13;
int sensorval;
int softswitch;
int incomingByte; // a variable to read incoming serial data into
void setup(){
Serial.begin(9600);
pinMode(relaypin,OUTPUT);
attachInterrupt(0,sensor, RISING);
}
void loop() {
if (Serial.available() > 0) {
// read the oldest byte in the serial buffer:
incomingByte = Serial.read();
// if it's a capital H (ASCII 72), turn on the LED:
if (incomingByte == 'H') {
digitalWrite(relaypin, HIGH);
delay(500);
digitalWrite(relaypin,LOW);
}
// if it's an L (ASCII 76) turn off the LED:
if (incomingByte == 'L') {
}
void sensor()
{
Serial.println ('A');
}
// if it's an L (ASCII 76) turn off the LED:
if (incomingByte == 'L') {
[glow] } [/glow]
}
I just got rid of that section and it still gives the same error!
current code
int sensorpin = 2;
int relaypin = 13;
int sensorval;
int softswitch;
int incomingByte; // a variable to read incoming serial data into
void setup(){
Serial.begin(9600);
pinMode(relaypin,OUTPUT);
attachInterrupt(0,sensor, RISING);
}
void loop() {
if (Serial.available() > 0) {
// read the oldest byte in the serial buffer:
incomingByte = Serial.read();
// if it's a capital H (ASCII 72), turn on the LED:
if (incomingByte == 'H') {
digitalWrite(relaypin, HIGH);
delay(500);
digitalWrite(relaypin,LOW);
}
}
void sensor()
{
Serial.println ('A');
}
You need another } before void sensor() to complete the void loop() section.
Gotta watch those brackets.
If you click the cursor just to the right of a ) or }, the IDE will show you where it thinks the mating ( or { is. If you can't see it on the portion of screen you are viewing, leave the cursor next to the ) or } and use the vertical scroll bar to look back thru your code.