ltspice , Spi, I2c, Rs232, Usb, Uart, Can, Ethernet, DUT programming tools, Industrial-grade hardware design, schematic capture, Switching relay cards, Measurement interfaces, GPIO-based fixture control, Logic analyser, DAQ tools, Altium Designer, Oscilloscope, Power analyser, DMM, Mixed-signal circuit design, Barcode serial scanning interfaces, Power Distribution, Pcb Layout, Programmable power supplies, Switching, Protection circuits, Rs485