5pcs/lot 4 Channel Optocoupler Isolation Module 4-Channel Opto-isolator IC Module Expansion Board High And Low Level For Arduino

function: use low level control high level. Such as the use single-chip microcomputer 3V or 5V voltage control 9V or 12V voltage. HVCC maximum not more than 24V. Output port OUT1/OUT2/OUT3/OUT4 maximum output current is equal to HVCC/5.1K, the maximum absorption current is 500ma. this module uses TLP281 chip