ZD Signal Generator 3 is a dedicated bus signal generator for automotive development environment, supporting CAN/CAN FD, LIN, Ethernet and FlexRay automotive standard bus systems. Through customized firmware programs, it can simulate background signals to meet the background signal requirements of the tested ECU in test benches. ZD Signal Generator 3 can be used in conjunction with SignalGen Lite, eliminating the need for a computer or complex client software. Simple control and monitoring of signals, such as speed adjustment and ignition activation, can be achieved manually through SignalGen Lite's rich GPIO interfaces, including buttons, knobs, and LEDs. SignalGen Lite can also be used as a standalone CAN signal generator.