--Use high-speed single-chip microcomputer to do voltage sampling test. --And drive LED lights to display voltage to realize the integration of boards and cards and reduce the defect rate (because the current is constant, only the voltage is used) display function). --0-300V adaptive voltage, suitab..
--Use high-speed single-chip microcomputer to do voltage sampling test. --And drive LED lights to display voltage to realize the integration of boards and cards and reduce the defect rate (because the current is constant, only the voltage is used) display function). --0-300V adaptive voltage, suitab..