Modified the scripts to run on Raspberry Pi.

Script will check if it is run on a PI, in that case a different I2C serial library is used.

I2C_serial_pi.py

@@ -35,7 +35,9 @@ class I2C:
         bus = smbus.SMBus(self.bus_nr)
         try:
             rd_value = bus.read_i2c_block_data(self.I2C_Address, register, bytes_to_read)
-            ret_value = hex(rd_value[0])[2:] 
+            ret_value = []
+            for cnt in range(bytes_to_read):
+                ret_value.append(hex(rd_value[cnt])[2:]) 
             ret_ack = 1
         except IOError, err:
             ret_ack = 0
@@ -64,11 +66,12 @@ class I2C:
         try:
             bus.write_i2c_block_data(self.I2C_Address, register, [data])
             ret_ack = 1
+            sleep(0.2)
         except IOError, err:
             ret_ack = 0
             ret_value = 0
             if DEBUG:
-                print("Reading error")
+                print("Write error")
         return ret_ack
 
     def write_pointer(self, register):
@@ -76,11 +79,12 @@ class I2C:
         try:
             ret_value = bus.read_i2c_block_data(self.I2C_Address, register, 1)
             ret_ack = 1
+            sleep(0.2)
         except IOError, err:
             ret_ack = 0
             ret_value = 0
             if DEBUG:
-                print("Reading error")
+                print("Write error")
         return ret_ack
 
 if __name__ == "__main__":