{"title":"HiLetGo","description":"","products":[{"product_id":"esp8266-wifi-relay-module","title":"ESP8266 WIFI Relay Module","description":"\u003cp\u003eoT (Internet of Things) is getting everyone attention and many maker and student are developing it. Out of most of IoT controller, ESP01, the controller that based on ESP8266 IC is most popular. Comes in very compact from factor and it offers 32-bit controller that integrates 2.4GHz WiFi.\u003c\/p\u003e\n\u003cp\u003eNow this is not the ESP01 module itself. Instead, this is a plug and use - Relay module for ESP01. With relay that capable of switching AC or DC load, up to 250AC at 10A. The module comes with a socket (2x4) for ESP01 to be stacked on it and it is ready to be powered up, controlling the high voltage and current load such as AC light, motor or any dry contact. Very useful for smart home IoT type development. Of course with many possible application supported by ESP8266, you can easily control the relay from Android phone or iPhone, not to forget control from various cloud server.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for ESP01 - ESP8266 module, supporting both ESP-01S and ESP-01\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBuilt-in Single Pole Double Throw Relay supporting 250AC, max 10A\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRelay outputs: NC, NO and COM are extended out to screw terminals\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOperating voltage: 3.7V - 12VDC (support single cell lithium battery)\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HiLetGo","offers":[{"title":"Default Title","offer_id":51183168782638,"sku":null,"price":0.0,"currency_code":"QAR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/1907\/2814\/files\/ScreenShot2022-06-30at9.37.02AM_720x_c2d19b33-d972-4063-a2a7-2072e1bb26f5.webp?v=1760867378"},{"product_id":"new-1-channel-5v-relay-module-high-level","title":"New 1 Channel 5V Relay Module (High Level)","description":"\u003cul\u003e\n\u003cli\u003eNormally open interface maximum load: AC 250V\/10A, DC 30V\/10A.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSMD optocoupler isolation, strong driving capability, stable performance; trigger current 5mA.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFault-tolerant design, the relay will not move even if the control line is broken.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePower indicator (green), relay status indicator (red).\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe interface is designed humanized, and all the interfaces can be directly connected by wiring terminals, which is very convenient.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFeatures\u003cbr\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eTwo-module interface:\u003cbr\u003e1. DC+: Connect the power supply positive pole (voltage 5V).\u003cbr\u003e2. DC-: Connect the power negative pole.\u003cbr\u003e3. IN: Low-level (3.3V) control relay pull-in.\u003c\/li\u003e\n\u003cli\u003eRelay output terminal:\u003cbr\u003e1. NO: Relay normal open, the relay suspends before pulling in, and then short-connects with the COM.\u003cbr\u003e2. COM: Relay common interface\u003cbr\u003e3. NC: Relay normal close, short connected with COM before pulling in and suspended after pulling in.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSpecification:\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOperating voltage: DC 5V; Trigger current: 5mA; Normally open interface maximum load: AC 250V\/10A, DC 30V\/10A.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTrigger Type: Low = ground level = logic 0 = logical false | High = supply voltage (usually Vcc or Vdd) = logic 1 = logical true.\u003c\/li\u003e\n\u003cli\u003eThis Module Is In Line With International Safety Standard, Control Areas And Load\u003c\/li\u003e\n\u003cli\u003eArea Have The Isolation Groove; Blue Kf301 Terminal Line More Convenient.\u003c\/li\u003e\n\u003cli\u003eUses The Quality Relay; Dc Or Ac Signal Control, Can Control 220 V Ac Load;\u003c\/li\u003e\n\u003cli\u003eHave Power And Relay Operation Instructions\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HiLetGo","offers":[{"title":"Default Title","offer_id":51195680981294,"sku":null,"price":0.0,"currency_code":"QAR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/1907\/2814\/files\/1_974771e4-00b5-43b6-b568-1da103e901c0.jpg?v=1761128325"},{"product_id":"digital-thermostat-xy-t01","title":"Digital Thermostat XY-T01","description":"\u003cp\u003eThis is a digital thermostat that has a built-in screen to show the temperature and control it using 4 push buttons. The relay is used to turn on\/off the heater or any other load in the circuit. The temperature is read by an external temperature sensor. It can also be used to cool down items with the same setup. It is also equipped with a buzzer to alarm when the temperature is reached.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWorking voltage: 6-30V or 5V from micro USB\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLoad specifications: 10A @ 240VAC (MAX)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTemperature Sensor: NTC-10KB3950\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWorking temperature: -50-110C\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSensor length: 5m\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HiLetGo","offers":[{"title":"Default Title","offer_id":51195759788334,"sku":null,"price":0.0,"currency_code":"QAR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/1907\/2814\/files\/XY-T01-Digitales-Thermostat-front5tItl4QKxksxd.jpg?v=1776065901"},{"product_id":"ne555-dc-12v-delay-relay-module","title":"NE555 DC 12V Delay Relay Module","description":"\u003cp\u003eNE555 Time Delay Monostable Switch with Electrical Relay 12V is a monostable generator based on the NE555 integrated circuit. The power indicator LED and switch trigger timing indication LEDs. Timing from microseconds to long hours.\u003c\/p\u003e\n\u003cp\u003eThis is a monostable generator based on the NE555 integrated circuit. It has an adjustable delay time from 0 to 10 seconds using the potentiometer or by changing the capacitance. It is also capable of controlling the device below 220V\/10A.\u003c\/p\u003e\n\u003cp\u003eApplicable to vehicle equipment-delay to prevent car ignition, prevention of high sudden current to burn components and devices.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStandby no power consumption\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePrecision Pulse Generation \/ Timing.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eExcellent temperature stability of 0.005%\/°C\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMonostable Operation.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eModule signal side design has optocoupler isolation, the anti-interference ability can adapt to the high-low level two kinds of control signal application, suitable for industrial control.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTime can be adjusted by a potentiometer, the default is 0-25 seconds.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIC Chip\u003cbr\u003eNE555\u003c\/li\u003e\n\u003cli\u003eAdjustable Time\u003cbr\u003e0 to 10 s\u003c\/li\u003e\n\u003cli\u003eControl Voltage (AC)\u003cbr\u003e250V @max. 10A\u003c\/li\u003e\n\u003cli\u003eControl Voltage (DC)\u003cbr\u003e30V @max. 10A\u003c\/li\u003e\n\u003cli\u003eInput Voltage\u003cbr\u003e12 V\u003c\/li\u003e\n\u003cli\u003eMax. Load\u003cbr\u003e2200 W\u003c\/li\u003e\n\u003cli\u003eTrigger Current\u003cbr\u003e20 mA\u003c\/li\u003e\n\u003cli\u003eTrigger Voltage\u003cbr\u003e12 V\u003c\/li\u003e\n\u003cli\u003eLength\u003cbr\u003e6.8 cm\u003c\/li\u003e\n\u003cli\u003eHeight\u003cbr\u003e1.8 cm\u003c\/li\u003e\n\u003cli\u003eWidth\u003cbr\u003e2.2 cm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HiLetGo","offers":[{"title":"Default Title","offer_id":51195763884334,"sku":null,"price":0.0,"currency_code":"QAR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0954\/1907\/2814\/files\/ne555-delay-timer-switch-adjustable-12v-relay-module2-1100x1100.webp?v=1761134174"},{"product_id":"rs485-ttl-modbus-rtu-1-channel-relay","title":"RS485\/TTL Modbus-Rtu 1 Channel Relay","description":"\u003cp\u003eIt is a single relay module. The single channel relay module is equipped with a mature and stable 8-bit MCU and RS485 level communication chip. Using standard MODBUSRTU format RS485 communication protocol, it can realize 1 optical coupler input signal detection and 1 relay output,which can be used for digital quantity detection or power control occasions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003cbr\u003e\u003c\/strong\u003e1.Parameter:\u003cbr\u003e  1).Product Name:Single Relay Module\u003cbr\u003e  2).Supply Voltage:DC 7V-24V\u003cbr\u003e  3).Communication Protocol:support standard Modbus RTU protocol\u003cbr\u003e  4).Communication Interface:support RS485\/TTL UART interface\u003cbr\u003e  5).Communication Baud Rate:4800\/9600\/19200 (default 9600bps)\u003cbr\u003e  6).Optocoupler Input Signal Range:DC3.3V-30V(this input cannot be used for relay control)\u003cbr\u003e  7).Device Address:range 1-255 (default 255).\u003cbr\u003e  8).Work Temperature:-25℃~85℃\u003cbr\u003e  9).Work Humidity:5%~95%RH\u003cbr\u003e  10).Size:63*33*20mm\u003c\/p\u003e\n\u003cp\u003e2.Interface Definition:\u003cbr\u003e  1).VCC,GND:Input DC 7V-24V\u003cbr\u003e  2).IN,GND:DC 3.3-30V optocoupler signal input\u003cbr\u003e  3).A+,B-:RS485 communication interface,A+,B are respectively connected to A+,B- of the external control terminal\u003cbr\u003e  4).Relay switch signal output:\u003cbr\u003e    1.1).NC:Normally closed,the relay is short-connected with COM before it is closed,and it is suspended after it is closed;\u003cbr\u003e    1.2).COM:public end;\u003cbr\u003e    1.3).NO:Normally open end,the relay is suspended before the pull-in,and short-circuited with COM after the pull-in.\u003cbr\u003e  5).Relay indicator:it lights up when the relay is closed\u003cbr\u003e  6).GND,RXD,TXD:TTL level UART communication interface,GND,RXD,TXD are respectively connected to GND,TXD,RXD of the external control terminal\u003c\/p\u003e\n\u003cp\u003e3.Introduction to Modbus RTU Command:\u003cbr\u003e  1).Modbus devices perform related operations by receiving Modbus RTU commands from an external control terminal (such as:host computer\/MCU).A frame of command generally consists of device address,function code,register address,register data,and check code.The frame length related to function codes.Generally,the first byte of each frame of data is the device address,and the settable range is 1-255,the default is 255 (ie 0xFF),and the last 2 bytes are the CRC check code.\u003c\/p\u003e\n\u003cp\u003e 2).Assuming that the device address is 255,the commonly used:\u003cbr\u003e      1.1).Turn on the No.1 relay (manual mode)\u003cbr\u003e            Send:FF 05 00 00 FF 00 99 E4\u003cbr\u003e            Return as is:FF 05 00 00 FF 00 99 E4\u003cbr\u003e            Remarks:(1) The 3-4 bytes of the sending frame represent the relay address,the addresses of relay 1-relay 8 are 0x0000,0x0001,0x0002,0x0003,0x0004,0x0005,0x0006,0x0007 respectively\u003cbr\u003e            (2) The 5-6 bytes of the sending frame represent data,0xFF00 represents opening the relay,and 0x0000 represents closing the relay.\u003c\/p\u003e\n\u003cp\u003e 1.2).Turn off No.1 relay (manual mode)\u003cbr\u003e            Send:FF 05 00 00 00 00 D8 14\u003cbr\u003e            Return as is:FF 05 00 00 00 00 D8 14\u003c\/p\u003e\n\u003cp\u003e 1.3).Turn on all relays\u003cbr\u003e            Send:FF OF 00 00 00 08 01 FF 30 1D\u003cbr\u003e            Return:FF 0F 00 00 00 08 41 D3\u003c\/p\u003e\n\u003cp\u003e 1.4).Turn off all relays\u003cbr\u003e            Send:FF 0F 00 00 00 08 01 00 70 5D\u003cbr\u003e            Return:FF OF 00 00 00 08 41 D3\u003c\/p\u003e\n\u003cp\u003e 1.5).Set the device address to 1\u003cbr\u003e            Send:00 10 00 00 00 01 02 00 01 6A 00\u003cbr\u003e            Return as is:00 10 00 00 00 01 02 00 01 6A 00\u003cbr\u003e            Note:The ninth byte 0x01 of the sending frame is the device address written\u003c\/p\u003e\n\u003cp\u003e 1.6).Set the device address to 255\u003cbr\u003e            Send:00 10 00 00 00 01 02 00 FF EB 80\u003cbr\u003e            Return as is:00 10 00 00 00 01 02 00 FF EB 80\u003cbr\u003e            Note:The ninth byte 0xFF of the sending frame is the device address written\u003c\/p\u003e\n\u003cp\u003e 1.7).Read the device address\u003cbr\u003e            Send:00 03 00 00 00 01 85 DB\u003cbr\u003e            Return:00 03 02 00 FF C5 C4\u003cbr\u003e            Note:The 5th byte 0xFF of the return frame is the read device address\u003c\/p\u003e\n\u003cp\u003e 1.8).Read the relay status\u003cbr\u003e            Send:FF 01 00 00 00 08 28 12\u003cbr\u003e            Return:FF 01 01 01 A1 A0\u003cbr\u003e            Remark:Bit0--Bit7 of the 4th byte 0x01 of the return frame respectively represent relay 1--relay 8,0 is closed,1 is open.\u003c\/p\u003e\n\u003cp\u003e 1.9).Read the optocoupler input status\u003cbr\u003e            Send:FF 02 00 00 00 08 6C 12\u003cbr\u003e            Return:FF 02 01 01 51 AO\u003cbr\u003e            Note:IN1--IN8 of the 4th byte 0x01 of the return frame respectively represent the input signal of optocoupler 1-- optocoupler 8,0 represents low level,1 represents high level\u003c\/p\u003e\n\u003cp\u003e 1.10).Set the baud rate to 4800\u003cbr\u003e            Send:FF 10 03 E9 00 01 02 00 02 4A 0C\u003cbr\u003e            Return:FF 10 03 E9 00 01 C5 A7\u003cbr\u003e            Note:The 9th byte of the sending frame is the baud rate setting value,0x02,0x03,x04 represent 4800,9600,19200 respectively\u003c\/p\u003e\n\u003cp\u003e 1.11).Set the baud rate to 9600\u003cbr\u003e            Send:FF 10 03 E9 00 01 02 00 03 8B CC\u003cbr\u003e            Return:FF 10 03 E9 00 01 C5 A7\u003c\/p\u003e\n\u003cp\u003e 1.12).Set the baud rate to 19200\u003cbr\u003e            Send:FF 10 03 E9 00 01 02 00 04 CA 0E\u003cbr\u003e            Return:FF 10 03 E9 00 01 C5 A7\u003c\/p\u003e\n\u003cp\u003e 1.13).Read baud rate\u003cbr\u003e            Send:FF 03 03 E8 00 01 11 A4\u003cbr\u003e            Return:FF 03 02 00 04 90 53\u003cbr\u003e            Note:The 5th byte of the returned frame represents the read baud rate,0x02,0x03,x04 represent 4800,9600,19200 respectively.\u003c\/p\u003e\n\u003cp\u003e 1.14).Turn on the No.1 relay (flash closing mode 2S)\u003cbr\u003e            Send:FF 10 00 03 00 02 04 00 04 00 14 C5 9F\u003cbr\u003e            Return:FF 10 00 03 00 02 A4 16\u003cbr\u003e            Remarks:(1) The 3-4 bytes of the sending frame represent the relay address,the addresses of relay 1-relay 8 are 0x0003,0x0008,0x000D,0x0012,0x0017,0x001C,0x0021,0x0026 respectively\u003cbr\u003e            (2) The 10th-11th bytes of the sending frame represent the delay setting value,the delay base is 0.1s,so the delay time is 0x0014*0.1=20*0.1S=2S,the relay will automatically close after 2S is turned on.\u003c\/p\u003e\n\u003cp\u003e 1.15).Turn off No.1 relay (flash mode 3S)\u003cbr\u003e            Send:FF 10 00 03 00 02 04 00 02 00 1E A5 99\u003cbr\u003e            Return:FF 10 00 03 00 02 A4 16\u003cbr\u003e            Remarks:(1) The 3-4 bytes of the sending frame represent the relay address,the addresses of relay 1--relay 8 are 0x0003,0x0008,0x000D,0x0012,0x0017,0x001C,0x0021 ,0x0026 respectively\u003cbr\u003e            (2) The 10th-11th bytes of the sending frame represent the delay setting value,the delay base is 0.1S,so the delay time is 0x001E*0.1=30*0.1S=3S,the relay will automatically turn on after 3S is closed\u003c\/p\u003e\n\u003cp\u003e4.Simple Instructions for Use:\u003cbr\u003e  1).The Modbus relay module can receive Modbus RTU commands from the host computer\/MCU via the RS485\/TTL UART interface to perform related operations.The following is an example of using the host computer software to open relay 1 (manual mode) through the RS485 interface.Assuming that the device address is 255 and the baud rate is 9600,the steps are as follows:\u003c\/p\u003e\n\u003cp\u003e  2).VCC,GND are respectively connected to the positive and negative poles of the power supply.\u003c\/p\u003e\n\u003cp\u003e  3).A+ and B- are A+ and B- at the output end of the USB to RS485 module respectively.\u003c\/p\u003e\n\u003cp\u003e  4).Open the host computer software \"ModbusRTU Configuration Tool\",select the correct port number,select 9600 for the baud rate,set the address to 255,and click \"Open Serial Port\".\u003c\/p\u003e\n\u003cp\u003e 5).Then click \"JD1 ON\" to turn on relay 1,and the indicator light of relay 1 will be on at the same time.\u003c\/p\u003e\n\u003cp\u003e5.How to Generate Check Code:\u003cbr\u003e  1).When the Modbus RTU command is sent through the ready-made host computer software (such as:ModbusRTU configuration tool),the CRC check code is automatically generated.If you want to use serial debugging software (such as SSCOM) to test the Modbus relay module,you need to manually generate CRC The check code is placed at the end of the sending frame,such as opening the first relay (manual mode):\u003c\/p\u003e\n\u003cp\u003e 2).The sending frame composition of open\/close relay (manual mode) is:Device address (1Byte) + function code (1Byte) + register address (2Byte) + register data (2Byte) + CRC check code (2Byte)\u003c\/p\u003e\n\u003cp\u003e 3).Assuming the device address is 0xFF,the first 6 bytes of the transmitted frame are:FF 05 00 00 FF 00\u003c\/p\u003e\n\u003cp\u003e4).Use the CRC check tool to find the check code for these 6 bytes.\u003c\/p\u003e\n\u003cp\u003e5).After exchanging the high and low byte positions of the check calculation result E499,the CRC check code 99E4 is obtained,and the complete sending frame:FF 05 00 00 FF 00 99 E4.\u003c\/p\u003e\n\u003cp\u003e6).Send the frame to the Modbus relay module through the serial port debugging software SSCOM V5.13.1 to open the first relay (manual mode).\u003c\/p\u003e","brand":"HiLetGo","offers":[{"title":"Default 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This PCB\/Sticker Antenna is a wireless device to receives and transmits signals, it has been widely used in telecommunication to communicate. 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