2.3 Indicator light and keystroke function
Indicator light
：
Indicator effect
Status Description
Periodically, quickly shine
three times.
Invalid module activation code
Periodically, quickly shine
twice.
The distribution network mode can be
distributed and bound by the APP as the
module distribution network
Continuous slow flash（bright
1s close 1s）
The module is trying to connect to WiFi
hotspots
Continuous flash
The module normally attempts to connect to
Ali-cloud
Still light
Modules are connected to Ali-cloud
Key
：
Name
Functional description
RST
Short press，Controller hardware reset
ES0/Default
Long press 6-10s，Clear distribution network
information, redistribute network
3. Application area
The relay is a widely-used product, and the relay can be used in communication
equipment, automatic device, household electric appliance, automobile electronic device and
other places where the circuit conversion function is required. It is widely used in household
appliance products, such as air conditioner, color TV, refrigerator, washing machine, etc.it is
also applied to industrial automation control and instrument
。
The relay controller with a contact capacity of 250VAC 10A/30VDC 10A can directly
control DC equipment below DC30V, such as: solenoid valve, access control switch, dry
contact switch equipment, also can control household 220V equipment, such as: electric
light, air conditioning, socket, water heater, etc.
1
、
Schematic diagram of connection between controller and light bulb
：
Summary of Contents for HLK-SW04
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