Firmware Development: C, C++, Python.
Hardware Peripherals : USART, SPI, I2C, I2S, CANBus, OneWire Ethernet,RTCC, ADC, DAC
Version Control Tools : Git (GitLab, GitHub)
BLE : ESP8266, ESP32, Nrf52 and other ESP-based Controllers
WiFi : ESP8266, ESP32 and More.
Cellular : SIM800, SIM5320, SIM7600, SIM7672s 4G, Quectel EC25.
Microchip: PIC12, PIC16, PIC18, PIC24, dsPIC30, PIC32MX, PIC32MK, PIC32MZ, and dsPIC33.
STM32: STM32L100C Discovery Board and other related boards.
ESP: Esp32, Esp8266, Esp32 C3, Esp32 S2.
NRF: Nrf52840, XIO BLE Sense, Nrf5328.
ATSAM: ATSAMD21 and others.