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Summarize: LC 5V WiFi relay module carried a ESP8266 WiFi module and microcontroller. It will send the serial port instructions to the cell phone APP and Implementation within the local area network (LAN) for wireless control relay. Function and characteristics: Onboard ESP8266 WIFI module, AP mode 5 client can be connected at the same time; Module has two work modes: 1, cell phones, carry on the WiFi module;2, mobile phone and WiFI module Carrying on the same router, by mobile phone APP to control relay Transmission distance: 1.The open environment, the mobile phone when carrying on the WIFI module maximum transmission distance of 400 m 2.When the WiFI module and cell phone carrying on the router at the same time the signal transmission distance in accordance with the router On the weak Onboard 5 v, 10 A / 250 v AC 10 A / 30 v DC relay, absorb 100000 times continuously Module with diode effusion protection, short response time Module baud rate: 9600,8,1,0,0. The board function description:   Size: 45*28mm IN +,IN-: 5 v power input TX,RX and GND: a serial port debug pins Introduction: Onboard the ESP8266 WIFI module has three work modes: STA (client), AP (hot), the STA + Ap(hot +client), according to the workings of a module to the corresponding choice of WIFI module working mode.Module need before use serial debugging software and USB to TTL module send serial command was carried out on the WIFI module configuration (don't power outages after configuration is complete, as some of the parameters of WIFI module cannot be saved when the power is cut off), mobile phone and WIFI module after establishing a network connection can use the phone APP control relay. When cell phone equipped with WiFi module sends commands in the following order: (The default baud rate 115200) 1, AT+CWMODE=2, namely AP mode is selected; 2, AT+RST, reset; 3, AT+CIPMUX=1, open multiple connections; 4, AT+CIPSERVER=1,8080, configure the TCP server, set the port; 5, AT+CIOBAUD=9600 set the baud rate to 9600. (working in relays to control the baud rate 9600) 6, AT+CIFSR to view the AP mode IP address, such as: the APIP, "192.168.4.1"; 7, Cell phone WIFI signal connection name starts with AI-THINKER or ESP8266; 8, In the "TCP connection" address and port into the APP, such as 192.168.4.1 and 8080; 9, Click on the grey box relays can be controlled. 10,  Document: Applications:   1. Home Automation 2. Industrial IOT Applications 3. Lighting Controls Package included: 3 x ESP8266 5V WiFi Relay Module

FAST AFFORDABLE COURIER SHIPPING TO SOUTH AFRICA Description: Maximum load: AC 250V/10A, DC 30V/10A. The chip optocoupler isolation, strong driving ability, stable performance, trigger current 5mA. Working voltage: 24V. Every channel of the module can be set high or low level trigger by jumper. Fault tolerant design, even if the control line is disconnect, the relay will not act. Power indicator (green), 1 relay status indicator (red). The interface design is humanized, all interfaces can be directly connected through the terminals, so it is very convenient. Module size: 50mm x 25mm x 18.5mm (length x width x height). There are 4 fixed bolt holes, holes 3.1mm, spacing 67mm x 44.5mm. Module interface: 1, DC+: Connect the power positive pole. 2, DC-: Connect the power negative pole. 3, IN1: Can be controlled by high or low level. Relay output: there is a 3 wire interface, all interfaces can be directly connected to lead to facilitate user use. 1, NO1: Relay normal open, the relay suspends before pulling in, and then short-connect with the COM. 2, COM1: Relay common interface 3, NC1: Relay normal close, short connected with COM before pulling in and suspended after pulling in. High and low level trigger option: 1. The 3-pin is the high level trigger selection. 2. When COM is short connected with LOW, the corresponding relay is LOW level trigger, while when COM is short connected with high end is high level trigger. Package Included: 1 x 1 Channel 5V Relay Module BESTEP 1 Channel 24V Relay Module High And Low Level Trigger For Arduino BESTEP 1 Channel 24V Relay Module High And Low Level Trigger For Arduino BESTEP 1 Channel 24V Relay Module High And Low Level Trigger For Arduino

Description Specifications Omron 5V solid-state relay 240V/2A Fuse with Resistance 240V/2A Size: 55x33x25mm (length x width x height) Input Power Supply: 5VDC Input Control Signal Voltage: (0-2.5V, Low Level Status, Relay ON), (3-5V, High Level Status, Relay OFF) Module interface: Input: DC+: connect power positive (power supply according to relay voltage) DC-: connect power negative CH1: signal trigger end of relay module (low level trigger) CH2: signal trigger end of relay module (low level trigger) Meaning of high level and low level: High level trigger refers to a forward voltage between the signal trigger end (CH) and the power negative pole. The trigger is usually realized by connecting power positive end to the signal trigger end. When the trigger end has positive voltage or voltage reaches the trigger point, relay is closed. Low level trigger refers to a 0V between the signal trigger end and the power negative pole, or the voltage of the trigger end is lower than that of the power positive pole, which reaches the level of trigger point, the relay is closed. The trigger is usually realized by connecting power negative end to the signal trigger end. Electrical parameters: Voltage Quiescent Current Working Current Trigger Voltage Trigger Current: Contact 1 5V 0mA 12.5mA 3.3-5V 2mA Contact 2 5V 0mA 12.5mA 3.3-5V 2mA Product instructions: Power Supply of module: Power Supply must be DC, voltage should match the relay voltage Wiring method: when signal trigger end has low level trigger, relay will be on, equipment will be working with electricity More Products View More Products

5V 1 Channel H/L Level Trigger Optocoupler Relay Module For Arduino Description: The module uses genuine quality relay, normally open interfaces Using SMD optocoupler isolation, driving ability, stable performance The module can be high or low by a jumper setting trigger Fault-tolerant design, even if the control line is broken, the relay will not operate The power indicator (green), the relay status indicator (red) The interface design of human nature, all interfaces are available through a direct connection terminal leads, very convenient Specification: Maximum load: AC 250V/10A, DC 30V/10A Trigger current: 5mA Working voltage: 5V Module size: 50 x 26 x 18.5mm (L x W x H) Four mounting bolts holes, diameter 3.1mm Module interface: DC+: positive power supply (VCC) DC-: negative power supply (GND) IN: can be high or low level control relay Relay outputs: NO: normally open relay interface COM: Common Interface Relays NC: normally closed relay interface High and low level trigger options: It is low level trigger when jumper connect to LOW pin It is high level trigger when jumper connect to HIGH pin Package included: 1 x 1 Channel H/L level trigger optocoupler relay module

3Pcs 5V 1 Channel Level Trigger Optocoupler Relay Module For Arduino Description: The module uses genuine quality relay, normally open interfaces Using SMD optocoupler isolation, driving ability, stable performance The module can be high or low by a jumper setting trigger Fault-tolerant design, even if the control line is broken, the relay will not operate The power indicator (green), the relay status indicator (red) The interface design of human nature, all interfaces are available through a direct connection terminal leads, very convenient Specification: Maximum load: AC 250V/10A, DC 30V/10A Trigger current: 5mA Working voltage: 5V Module size: 50 x 26 x 18.5mm (L x W x H) Four mounting bolts holes, diameter 3.1mm Module interface: DC+: positive power supply (VCC) DC-: negative power supply (GND) IN: can be high or low level control relay Relay outputs: NO: normally open relay interface COM: Common Interface Relays NC: normally closed relay interface High and low level trigger options: It is low level trigger when jumper connect to LOW pin It is high level trigger when jumper connect to HIGH pin Package included: 3 x 1 Channel H/L level trigger optocoupler relay module

10Pcs 5V 1 Channel Level Trigger Optocoupler Relay Module For Arduino Description: The module uses genuine quality relay, normally open interfaces Using SMD optocoupler isolation, driving ability, stable performance The module can be high or low by a jumper setting trigger Fault-tolerant design, even if the control line is broken, the relay will not operate The power indicator (green), the relay status indicator (red) The interface design of human nature, all interfaces are available through a direct connection terminal leads, very convenient Specification: Maximum load:  AC 250V/10A, DC 30V/10A Trigger current: 5mA Working voltage: 5V Module size: 50 x 26 x 18.5mm (L x W x H) Four mounting bolts holes, diameter 3.1mm Module interface: DC+: positive power supply (VCC) DC-: negative power supply (GND) IN: can be high or low level control relay Relay outputs: NO: normally open relay interface COM: Common Interface Relays NC: normally closed relay interface High and low level trigger options: It is low level trigger when jumper connect to LOW pin It is high level trigger when jumper connect to HIGH pin Package included: 10 x 1 Channel H/L level trigger optocoupler relay module  

FAST AFFORDABLE COURIER SHIPPING TO SOUTH AFRICA Specification: Input Power Supply: 12V DC Load Voltage: AC240V 2A Maximum operating current: 13.8mA Trigger mode: low level Input control signal voltage: (0-2.5V low state relay OFF) (3.3-5V state high relay ON) Blue KF301 terminal connection control line is more convenient. Module interface: DC +: positive power supply (by relay voltage power supply) DC-: connect power negative CH: Relay Module signal triggering end (Low level trigger effective) Note: Power must be DC voltage and need to be consistent with the voltage relay Package Included: 5 x Low Level Relay Module 5pcs 1 Channel DC 12V Relay Module Solid State Low Level Trigger For Arduino 240V2A 5pcs 1 Channel DC 12V Relay Module Solid State Low Level Trigger For Arduino 240V2A 5pcs 1 Channel DC 12V Relay Module Solid State Low Level Trigger For Arduino 240V2A

FAST AFFORDABLE COURIER SHIPPING TO SOUTH AFRICA Description: Dimensions: 50.6 x 38.8 x 19.3mm (L x W x H) Weight: 30g The board is surrounded by four fixed screw holes with a diameter of 3.1 mm, which is convenient for installation and fixing. High quality relay, single-pole double-throw. One common end, one constant beginning, one constant closing end. Photocoupler isolation, good anti-interferenceLow level suction, high level release. The state indicator lights up when sucking in and out when releasing. Feature: VCC is the system power supply and JD_VCC is the relay power supply. Default 5V relay, insert jumper cap. Maximum output of relay: DC 30V/10A, AC 250V/10A Wiring instructions: VCC: Positive Pole of System Power Supply GND: Negative Electrode of System Power Supply IN1-IN2: Relay control port Package Included: 10 x 2 Channel 12V Relay Module 10pcs 2 Channel Relay Module 12V with Optical Coupler Protection Relay Extended Board For Arduino 10pcs 2 Channel Relay Module 12V with Optical Coupler Protection Relay Extended Board For Arduino 10pcs 2 Channel Relay Module 12V with Optical Coupler Protection Relay Extended Board For Arduino

5Pcs 5V 1-Channel H/L Trigger Optocoupler Relay Module For Arduino Description: The module uses genuine quality relay, normally open interfaces Using SMD optocoupler isolation, driving ability, stable performance The module can be high or low by a jumper setting trigger Fault-tolerant design, even if the control line is broken, the relay will not operate The power indicator (green), the relay status indicator (red) The interface design of human nature, all interfaces are available through a direct connection terminal leads, very convenient Specification: Maximum load: AC 250V/10A, DC 30V/10A Trigger current: 5mA Working voltage: 5V Module size: 50 x 26 x 18.5mm (L x W x H) Four mounting bolts holes, diameter 3.1mm Module interface: DC+: positive power supply (VCC) DC-: negative power supply (GND) IN: can be high or low level control relay Relay outputs: NO: normally open relay interface COM: Common Interface Relays NC: normally closed relay interface High and low level trigger options: It is low level trigger when jumper connect to LOW pin It is high level trigger when jumper connect to HIGH pin Package included: 5 x 1 Channel H/L trigger optocoupler relay module

Description:   The module uses genuine quality relay, normally open interfaces Using SMD optocoupler isolation, driving ability, stable performance The module can be high or low by a jumper setting trigger Fault-tolerant design, even if the control line is broken, the relay will not operate The power indicator (green), the relay status indicator (red) The interface design of human nature, all interfaces are available through a direct connection terminal leads, very convenient   Specification:   Maximum load: AC 250V/10A, DC 30V/10A Trigger current: 5mA Working voltage: 12V Module size: 73 x 50 x 18.5mm (L x W x H) Four mounting bolts holes, diameter 3.1mm   Module Interface:   DC+: positive power supply (VCC) DC-: negative power supply (GND) IN: can be high or low level control relay   Relay Outputs:   NO: normally open relay interface COM: Common Interface Relays NC: normally closed relay interface   High and low level trigger options:   It is low level trigger when jumper connect to LOW pin It is high level trigger when jumper connect to HIGH pin   Package included:   1 x 4 Channel H/L Level Trigger Optocoupler Relay Module