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Add relay index validation to demo sketch #5

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Add relay index validation to demo sketch #5

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13 changes: 10 additions & 3 deletions Arduino/shields/2ChannelRelayShield/2ChannelRelayShieldDemoCode.ino
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Original file line number Diff line number Diff line change
Expand Up @@ -29,13 +29,20 @@ void loop()
Serial.readBytesUntil(13, Input, 2); // Read bytes until pressed ENTER
int State = Input[1] - 48;
int RelayNum = Input[0]-48;
if((State == 0) || (State == 1))
if (RelayNum < 0 || RelayNum >= 2)
{
digitalWrite(RelayPins[RelayNum], State); // Make Relay ON or OFF
Serial.println("Invalid relay number");
}
else
{
Serial.println("Incorrect parameter");
if((State == 0) || (State == 1))
{
digitalWrite(RelayPins[RelayNum], State); // Make Relay ON or OFF
}
else
{
Serial.println("Incorrect parameter");
}
}

Status = String("Relay ") + String(RelayNum) + String(" State is set to ") + String(State);
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