I am professional software developer mostly in Java. Arduino is my hobby.

I wrote some Arduino libraries available in Library Manager:

• WiFiEspAT networking library. Standard Arduino WiFi networking API over ESP8266 or ESP32 AT commands with AT 1.7 and newer firmwares.
• EthernetENC networking library. Standard Arduino Ethernet networking API with ENC28J60 Ethernet controller. It is a modern version of the UIPEthernet library, which I maintain too.
• StreamLib - library with BufferedPrint, ChunkedPrint and CStringBuilder and with printf() support
• TelnetStream - Arduino Stream implementation over Telnet for OTA logging and debugging
• UnoWiFiDevEdSerial1 - Implements Serial1 of Arduino Uno WiFi Developer Edition board to access the on-board ESP8266

My most popular Arduino library is the enhancement of the Arduino WiFi101OTA library to generic ArduinoOTA library. I added support for many networking libraries and for ATmega AVR MCU (with at least 64 kB of flash).

I maintain some libraries abandoned by their authors and maintainers:

• WiFiLink library and firmware in my fork
• UIPEthernet library in the fork by previous maintainer

I publish my Arduino projects and small sketches to my GitHub repository for samples and inspiration for hobby Arduino coders.

Some of my useful Arduino SE answers:

• Adding a custom board to the Arduino IDE
• Wemos D1 mini/R2 and NodeMCU pins usage
• About Triac codding
• TCP/IP communication