From e587ce5b3ca58b821dde8b6838e7662907a14d9d Mon Sep 17 00:00:00 2001
From: Jeff Hoefs <jeff.hoefs@gmail.com>
Date: Sun, 20 Dec 2015 18:16:33 -0800
Subject: [PATCH] make VERSION_BLINK_PIN optional

---
 Firmata.cpp | 22 +++++++---------------
 Firmata.h   |  2 +-
 2 files changed, 8 insertions(+), 16 deletions(-)

diff --git a/Firmata.cpp b/Firmata.cpp
index d56e86da..37a273dc 100644
--- a/Firmata.cpp
+++ b/Firmata.cpp
@@ -93,12 +93,14 @@ void FirmataClass::printVersion(void)
 
 void FirmataClass::blinkVersion(void)
 {
+#if defined(VERSION_BLINK_PIN)
   // flash the pin with the protocol version
   pinMode(VERSION_BLINK_PIN, OUTPUT);
-  strobeBlinkPin(FIRMATA_MAJOR_VERSION, 40, 210);
+  strobeBlinkPin(VERSION_BLINK_PIN, FIRMATA_MAJOR_VERSION, 40, 210);
   delay(250);
-  strobeBlinkPin(FIRMATA_MINOR_VERSION, 40, 210);
+  strobeBlinkPin(VERSION_BLINK_PIN, FIRMATA_MINOR_VERSION, 40, 210);
   delay(125);
+#endif
 }
 
 void FirmataClass::printFirmwareVersion(void)
@@ -161,7 +163,6 @@ int FirmataClass::available(void)
   return FirmataStream->available();
 }
 
-
 void FirmataClass::processSysexMessage(void)
 {
   switch (storedInputData[0]) { //first byte in buffer is command
@@ -330,7 +331,6 @@ void FirmataClass::sendDigitalPort(byte portNumber, int portData)
   FirmataStream->write(portData >> 7);  // Tx bits 7-13
 }
 
-
 void FirmataClass::sendSysex(byte command, byte bytec, byte *bytev)
 {
   byte i;
@@ -347,7 +347,6 @@ void FirmataClass::sendString(byte command, const char *string)
   sendSysex(command, strlen(string), (byte *)string);
 }
 
-
 // send a string as the protocol string type
 void FirmataClass::sendString(const char *string)
 {
@@ -360,7 +359,6 @@ void FirmataClass::write(byte c)
   FirmataStream->write(c);
 }
 
-
 // Internal Actions/////////////////////////////////////////////////////////////
 
 // generic callbacks
@@ -428,8 +426,6 @@ void FirmataClass::detach(byte command)
 //* Private Methods
 //******************************************************************************
 
-
-
 // resets the system state upon a SYSTEM_RESET message from the host software
 void FirmataClass::systemReset(void)
 {
@@ -450,22 +446,18 @@ void FirmataClass::systemReset(void)
     (*currentSystemResetCallback)();
 }
 
-
-
 // =============================================================================
 // used for flashing the pin for the version number
-void FirmataClass::strobeBlinkPin(int count, int onInterval, int offInterval)
+void FirmataClass::strobeBlinkPin(byte pin, int count, int onInterval, int offInterval)
 {
   byte i;
-  pinMode(VERSION_BLINK_PIN, OUTPUT);
   for (i = 0; i < count; i++) {
     delay(offInterval);
-    digitalWrite(VERSION_BLINK_PIN, HIGH);
+    digitalWrite(pin, HIGH);
     delay(onInterval);
-    digitalWrite(VERSION_BLINK_PIN, LOW);
+    digitalWrite(pin, LOW);
   }
 }
 
-
 // make one instance for the user to use
 FirmataClass Firmata;
diff --git a/Firmata.h b/Firmata.h
index 7fe6d63f..a724a1f2 100644
--- a/Firmata.h
+++ b/Firmata.h
@@ -173,7 +173,7 @@ class FirmataClass
     /* private methods ------------------------------ */
     void processSysexMessage(void);
     void systemReset(void);
-    void strobeBlinkPin(int count, int onInterval, int offInterval);
+    void strobeBlinkPin(byte pin, int count, int onInterval, int offInterval);
 };
 
 extern FirmataClass Firmata;