Minor updates

2 files changed, 4 insertions, 4 deletions

diff --git a/libraries/OBD/OBD.cpp b/libraries/OBD/OBD.cpp
index 3dba269..cd5290e 100644
--- a/libraries/OBD/OBD.cpp
+++ b/libraries/OBD/OBD.cpp
@@ -225,14 +225,14 @@ byte COBD::receive(char* buffer, int timeout)
 	unsigned char n = 0;

 	bool prompted = false;

 

-	buffer[0] = 0;

+	if (buffer) buffer[0] = 0;

 	for (;;) {

 	    if (available()) {

 	        char c = read();

 	        if (n > 2 && c == '>') {

 	            // prompt char received

 	            prompted = true;

-	        } else if (n < OBD_RECV_BUF_SIZE - 1) {

+	        } else if (n < OBD_RECV_BUF_SIZE - 1 && buffer) {

 	            buffer[n++] = c;

 	            if (c == '.') {

                     n = 0;

diff --git a/libraries/OBD/OBD.h b/libraries/OBD/OBD.h
index 22d9f12..2718eb2 100644
--- a/libraries/OBD/OBD.h
+++ b/libraries/OBD/OBD.h
@@ -10,7 +10,7 @@
 #define OBD_TIMEOUT_SHORT 2000 /* ms */

 #define OBD_TIMEOUT_LONG 7000 /* ms */

 #define OBD_SERIAL_BAUDRATE 38400

-#define OBD_RECV_BUF_SIZE 80

+#define OBD_RECV_BUF_SIZE 128

 

 #ifndef OBDUART

 #if defined(__AVR_ATmega32U4__) || defined(__AVR_ATmega2560__) || defined(__AVR_ATmega1280__) || defined(__AVR_ATmega644P__)

@@ -155,7 +155,7 @@ public:
     // GPS API

     bool gpsQuery(GPS_DATA* gpsdata);

     void gpsSetup(uint32_t baudrate, const char* cmds = 0);

-private:

+protected:

     bool sendCommand(byte cmd, uint8_t data = 0, byte* payload = 0, byte payloadBytes = 0);

     byte receive(char* buffer, int timeout = OBD_TIMEOUT_SHORT);

     byte m_addr;