Connects to MySQL or MariaDB using ESP8266/ESP32, WT32_ETH01 (ESP32 + LAN8720A), nRF52, SAMD21/SAMD51, STM32F/L/H/G/WB/MP1, Teensy, SAM DUE, Mega, RP2040-based boards, Portenta_H7, etc. with W5x00, ENC28J60 Ethernet, Teensy 4.1 NativeEthernet/QNEthernet, WiFiNINA modules/shields or Portenta_H7 WiFi/Ethernet. W5x00 can use Ethernet, EthernetLarge, Ethernet2 or Ethernet3 library. ENC28J60 can use either EthernetENC or UIPEthernet Library.
You can use this library to connect your Arduino project directly to a MySQL / MariaDB server without using an intermediate computer or a web-based or cloud-based service. Having direct access to a database server means you can store data acquired from your project as well as check values stored in tables on the server. This also means you can setup your own, local MySQL / MariaDB server to store your data further removing the need for Internet connectivity. If that is not an issue, you can still connect to and store data on a MySQL / MariaDB server via your network, Internet, or even in the cloud! Now accepting server hostname, besides IPAddress

Author: Dr. Charles Bell

Maintainer: Khoi Hoang

Read the documentation


This library is compatible with all architectures so you should be able to use it on all the Arduino boards.


To use this library, open the Library Manager in the Arduino IDE and install it from there.