Main switch for 4-channel pin, active low. APP configuration pin, when the low level> 5S, enter the pairing mode. No Server: The device has been connected to the router, but it cannot connect to the server (also known as”cannot access the Internet”). The upper and lower layers of the PCB where the module is placed should not be routed as much as possible. Do the copper-clad processing, and the PCB from the module antenna to the nearest pin of the module should be hollowed out as much as possible. PSF-B04 supports timer. The eWeLink APP provides four timing modes to facilitate the use in more scenarios. Strong signal up to 40m range outdoors, 15m indoors for plasterboard, 8m indoors for concrete or glass

This item works with Alexa and Google Assistant, and the manufacturer has their own app to control this system. The switch for the third channel, active low. APP configuration pin, when the low level> 5S, enter the pairing mode.This item is suitable for use with single, double and triple kinetic switches plus a single switch key fob. WiFi and RF Wireless Receiver Non-Dimmable in Matt White - Specs The flashing of the Wi-Fi status light is in a cycle of 2 seconds, as shown in the figure, the low-level light is on and the high-level light is off. Detailed explanation of each status: The device obtains information in different ways in the two modes, read below section for details. 4.3 The Wi-Fi module basic workflow

This is the Forum CUL-40039 Culina Konect Wireless On/Off Kinetic Switch Non-Dimmable Wi-Fi Module - a wifi and RF wireless receiver. The relay switch for the fourth channel, active low. APP configuration pin, when the low level> 5S, enter the pairing mode. Note: The chip configuration pin needs to pull down (1~4.7K) resistor to ground. External reset signal: active at low level, externally need to pull up a 10K resistor to 3.3V, and connect a 100nF capacitor to ground.Power-on status configuration: The power-on switch status can be configured on or off through the APP, and the default power-on status is off. Normal: The device is working normally and the connection to the cloud server is normal.The device can be only controlled through the APP in this mode.

The timer function is configured through the APP, and the timer is divided into the following four types: The switch for the first channel, active low. APP configuration pin, when the low level> 5S, enter the pairing mode.

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SONOFF SV is a low voltage switch. The low voltage light switch supports 5-24V power supply. Power supply separation enables it to control both AC and DC power, although some welding is required for this purpose. It has GIPO reserved to support secondary development. This product does not have 433 RF function and shell. Unregistered: The device has not been bound to account. The device needs to be bound to the eWeLink account to connect to the cloud server. You can bind the device by tap “Add Device” in the eWeLink APP.

The relay switch for the first channel: active high, power-on default low level. Note: As a switch button, there will be a period of high level at the moment of power-on, which requires a pull-down (1~4.7K) resistor to ground.Chip enable terminal high level: valid; low level: closed.Note: An external pull-up resistor of 1~10K, connect a 100nF capacitor to the ground.