Languages: C, C++, JAVA, PYTHON

Controller / Processor: Atmel, NXP, ST, Microchip, TI, Broadcom, Free scale, Nordic Semiconductors, Mediatek.

Operating Systems: Linux, Windows, OpenWrt, RTOS, ARM Mbed OS.

Networking Protocols: TCP, UDP, HTTP, MQTT, COAP, ONVIF, RTSP, RTCP, RTP, RDP, FTP, Thread Protocol, and Lora Wireless.

Communication Protocols: RS232, USB, Modbus RTU, Modbus TCP/IP, SPI, I2C, CAN