The standard MySQL examples on atmega328 do not work

I use the standard examples on using MySQL on iboard v1.1 atmega328, Converter Foca FT232RL USB - UART

MySQL Connector/Arduino Example : connect

This example demonstrates how to connect to a MySQL server from an
Arduino using an Arduino-compatible Ethernet shield. Note that “compatible”
means it must conform to the Ethernet class library or be a derivative
thereof. See the documentation located in the /docs folder for more


  1. Change the address of the server to the IP address of the MySQL server
  2. Change the user and password to a valid MySQL user and password
  3. Connect a USB cable to your Arduino
  4. Select the correct board and port
  5. Compile and upload the sketch to your Arduino
  6. Once uploaded, open Serial Monitor (use 115200 speed) and observe

If you do not see messages indicating you have a connection, refer to the
manual for troubleshooting tips. The most common issues are the server is
not accessible from the network or the user name and password is incorrect.

Note: The MAC address can be anything so long as it is unique on your network.

Created by: Dr. Charles A. Bell
#include <Ethernet.h>
#include <MySQL_Connection.h>

byte mac_addr = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };

IPAddress server_addr(10,0,1,35); // IP of the MySQL server here
char user = “root”; // MySQL user login username
char password = “secret”; // MySQL user login password

EthernetClient client;
MySQL_Connection conn((Client *)&client);

void setup() {
while (!Serial); // wait for serial port to connect
if (conn.connect(server_addr, 3306, user, password)) {
// You would add your code here to run a query once on startup.
Serial.println(“Connection failed.”);

void loop() {

After the compilation, here’s what message

Build options changed, rebuilding all
Sketch uses 15754 bytes (48%) of program storage space. Maximum is 32256 bytes.
Global variables use 863 bytes (42%) of dynamic memory, leaving 1185 bytes for local variables. Maximum is 2048 bytes.
Invalid library found in C:\Users\Dmitriy\Documents\Arduino\libraries\Test_________: C:\Users\Dmitriy\Documents\Arduino\libraries\Test_________
Invalid library found in C:\Users\Dmitriy\Documents\Arduino\libraries\Test_________: C:\Users\Dmitriy\Documents\Arduino\libraries\Test_________

And when I to do the serial port monitoring, there is nothing.

there is nothing.

Not even the "Connecting" message?

Not even the "Connecting" message?

Yes. If i creat simple anolog input test.. all good.

Problem in this message

Invalid library found in C:\Users\Dmitriy\Documents\Arduino\libraries\Test______: C:\Users\Dmitriy\Documents\Arduino\libraries\Test______

What kind of problem and what kind of library does he not like?

Have any suggestions?