Application:

This module is widely applicable to the design and development of home and industrial
electronic products of electronic enthusiasts, and it can be used as a signal input source
of single-chip microcomputers. It is especially suitable for the design of students’
electronic circuits in large and medium-sized universities and can be connected with a
single chip, or Add one level of amplifying drive relay or small DC motor. The module
board set selects one self-locking, interlocking, trigger (jog), high level, low level,
machine equipment, automatic equipment conversion, PLC industrial control, Arduino robot
and other intelligent products.

Trigger side:
1.CH1-CH2: Corresponding to 1-2 relay trigger control terminal, support high or low level trigger;
2.TRV+: external positive trigger power supply, if you want to external trigger power jumper between RTV+ and VCC should be unplugged
3.TRV-: external negative trigger power supply, if you want to connect external trigger power supply jumper between RTV- and GND to be unplugged
4.2 micro-switches: Corresponds to 1-2 relay test keys, valid at low-level trigger;
5. High/low level trigger selection. When COM and L are connected, low level trigger is valid. When COM and H are connected, high level trigger is valid.

Package Content
1 x Relay Module