Product Features
1. The cell phone is directly mounted on the WIFI module, there is no restriction on the number of access phones, multiple phones can be controlled.
2. In the open environment, the maximum transmission distance is 80 meters when the cell phone is mounted on the WIFI module.
3. Neutral relay single load current does not exceed 2A, songle relay single load does not exceed 10A.
4. As the 4-channel relay requires about 0.5A of current for all the relays to absorb, the instantaneous current of absorption is more than 1A, so the power supply current output capacity must be more than 1A, and it is recommended to use a power supply of more than 2A.
5. Relay module IP address is 192.168.4.1, the password is abcd9527, the current program version of the address and password can not be modified!
1. The cell phone is directly mounted on the WIFI module, there is no restriction on the number of access phones, multiple phones can be controlled.
2. In the open environment, the maximum transmission distance is 80 meters when the cell phone is mounted on the WIFI module.
3. Neutral relay single load current does not exceed 2A, songle relay single load does not exceed 10A.
4. As the 4-channel relay requires about 0.5A of current for all the relays to absorb, the instantaneous current of absorption is more than 1A, so the power supply current output capacity must be more than 1A, and it is recommended to use a power supply of more than 2A.
5. Relay module IP address is 192.168.4.1, the password is abcd9527, the current program version of the address and password can not be modified!
Relay knowledge popularization:
Relay is generally composed of iron core, coil, armature, contacts and so on. As long as a certain voltage is added to both ends of the coil, a certain current will flow in the coil, resulting in an electromagnetic effect, and the armature will overcome the return spring's pull to the iron core under the action of electromagnetic attraction, thus driving the armature's movable contacts and static contacts (normally open contacts) suction. When the coil is powered off, the electromagnetic suction also disappears, the armature will return to its original position under the reaction force of the spring, so that the movable contacts and the original static contacts (normally closed contacts) suction. This suction, release, so as to achieve the purpose of conduction in the circuit, cut off. For the relay "normally open, normally closed" contacts, can be distinguished in this way: the relay coil is not energized in the disconnected state of the static contact, known as "normally open contacts"; in the on state of the static contact known as "normally closed contacts The static contact in the on state is called "normally closed contact".
Relay is equivalent to an electronic switch, can replace the mechanical switch. It does not output current and cannot be used as a power supply!
It can not be used as a power supply!
Relay is generally composed of iron core, coil, armature, contacts and so on. As long as a certain voltage is added to both ends of the coil, a certain current will flow in the coil, resulting in an electromagnetic effect, and the armature will overcome the return spring's pull to the iron core under the action of electromagnetic attraction, thus driving the armature's movable contacts and static contacts (normally open contacts) suction. When the coil is powered off, the electromagnetic suction also disappears, the armature will return to its original position under the reaction force of the spring, so that the movable contacts and the original static contacts (normally closed contacts) suction. This suction, release, so as to achieve the purpose of conduction in the circuit, cut off. For the relay "normally open, normally closed" contacts, can be distinguished in this way: the relay coil is not energized in the disconnected state of the static contact, known as "normally open contacts"; in the on state of the static contact known as "normally closed contacts The static contact in the on state is called "normally closed contact".
Relay is equivalent to an electronic switch, can replace the mechanical switch. It does not output current and cannot be used as a power supply!
It can not be used as a power supply!
Relay main product technical parameters
1、Rated working voltage
It refers to the voltage required by the coil when the relay works normally. Depending on the model of the relay, it can be AC voltage or DC voltage.
2、DC resistance
It refers to the DC resistance of the coil in the relay, which can be measured by a multimeter.
3、Suction current
It refers to the small current that the relay can produce the suction action. In normal use, the given current must be slightly larger than the suction current, so that the relay can work stably. As for the working voltage added to the coil, generally do not exceed 1.5 times the rated working voltage, otherwise it will produce a large current and burn the coil.
4、Release current
It refers to the large current that the relay generates to release the action. When the current of the suction state of the relay is reduced to a certain degree, the relay will return to the unenergized release state. The current at this time is much smaller than the absorption current.
5、Contact switching voltage and current
It is the voltage and current that the relay is allowed to load. It determines the size of the voltage and current that the relay can control, and it can not exceed this value when used, or it will easily damage the contacts of the relay.
Relay model selection:
Select the appropriate model according to the power supply voltage and trigger signal voltage. For example, if you use 5V microcontroller to control, you should choose 5V relay module; if you use 3.3V microcontroller to control, you should choose 3.3V relay module.
Relay Overview
Wifi relay module is equipped with ESP8266 Wifi module, which can be used to control the relay wirelessly through the cell phone browser. the Wifi module sends out a hotspot, and the cell phone connects to the hotspot, so that it can be controlled without the need of network. Whether it is ios system or android system or other systems can control, not limited by the cell phone operating system. With power failure data saving function, the system in the case of power failure and then power on, the relay will automatically restore the state before the power failure
Product Parameters
4-way size: 72mm(L)*51.7mm(W)*19.3mm(H)
8-way size: 134mm(L)*52mm(W)*19.3mm(H)
The board is surrounded by 4 fixing screw holes with a diameter of 3.1mm, which is convenient for installation and fixing.
The relay is made of high quality relay, single-pole double-throw. A common terminal, a normally open terminal, a normally closed terminal
Optocoupler isolation, good anti-interference
Absorbed at high level and released at low level. The status indicator light is on when it's absorbed, and off when it's released.
VCC is the positive pole of power supply, GND is the negative pole of power supply.
Relay maximum output: DC 30V/10A, AC 250V/10A (original relay); DC 30V/2.5A, AC 250V/2.5A (neutral relay)
Relay signal optional: 5V/12V
4-way size: 72mm(L)*51.7mm(W)*19.3mm(H)
8-way size: 134mm(L)*52mm(W)*19.3mm(H)
The board is surrounded by 4 fixing screw holes with a diameter of 3.1mm, which is convenient for installation and fixing.
The relay is made of high quality relay, single-pole double-throw. A common terminal, a normally open terminal, a normally closed terminal
Optocoupler isolation, good anti-interference
Absorbed at high level and released at low level. The status indicator light is on when it's absorbed, and off when it's released.
VCC is the positive pole of power supply, GND is the negative pole of power supply.
Relay maximum output: DC 30V/10A, AC 250V/10A (original relay); DC 30V/2.5A, AC 250V/2.5A (neutral relay)
Relay signal optional: 5V/12V
Wiring Instructions
VCC: System power positive
GND: negative terminal of system power supply
COM(x) is the common terminal of the xth relay, NC(x) is the normally closed terminal of the xth relay, NO(x) is the normally open terminal of the xth relay.
The power supply voltage must be consistent with the relay voltage! For example, if you choose 12V relay, the voltage must also be 12V±5%, a little higher or a little lower can be, but with 5V voltage can not drive 12V relay, with 24V power supply will directly burn off the relay!
Simple test method after receiving the goods is as follows
1. Connect the power supply to the blue terminal (the side near the positioning hole is negative, the side near the row of pins is positive).
2. Open the cell phone settings, wireless LAN to find FTCBLOCK WIFI Relay-8 and connect, connect password abcd9527
Delivery list
Relay Module*1
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