The reason you need to read this article is because it will provide you with the information you need to make an informed decision. You'll learn about the best types of usb 4 channel relay board on the market today, what to look for when shopping for one, and information on how they're typically used.
Our 10 Best usb 4 channel relay board Reviews For 2022
- Onboard square USB interface, stable connection.
- Use imported high performance USB control chip.
- Use the special relay drive chip ULN2803, the relay works more stable.
- Military-grade PCB board production.
- Board power socket and terminal, two ways to access the power supply are convenient and flexible.
- NOYITO 2-Channel Micro USB Relay Module is equipped with a stable USB to serial port chip and a microcontroller. It can use the serial port debugging software to send serial commands on the computer to control the opening and closing of the 2-channel relay.
- Onboard high performance microcontroller chip, CH340 USB control chip.With power LED indicator and relay status LED.On-board 2-channel 5V, 10A/250VAC, 10A/30VDC relay, long relay life, can work 100,000 times continuously.
- Module with overcurrent protection and relay diode freewheel protection.
- NOYITO 8-Channel Micro USB Relay Module ASIN：B09RGTSHHW
- NOYITO 4-Channel Micro USB Relay Module ASIN：B09RGVQXXT
- 1. Reading status(reading the satus of the relay (on/off)) 0x55 0x56 0x00 0x00 0x00 0x00 0x00 0xAB
- 2.Relay open (issue this command,Relay open,COM connect to NO) Channel 1 : 0x55 0x56 0x00 0x00 0x00 0x01 0x01 0xAD Channel 2 : 0x55 0x56 0x00 0x00 0x00 0x02 0x01 0xAE
- 3. Relay close (issue this command,Relay close,COM disconnect NO,and COM connect to NC) Channel 1 : 0x55 0x56 0x00 0x00 0x00 0x01 0x02 0xAE Channel 2 : 0x55 0x56 0x00 0x00 0x00 0x02 0x02 0xAF
- 4. Relay toggle(Relay status reversal,if COM connect to NO,this commands will Disconnect COM to NO and Reverse COM connect to NC,and vice versa) Channel 1 : 0x55 0x56 0x00 0x00 0x00 0x01 0x03 0xAF Channel 2 : 0x55 0x56 0x00 0x00 0x00 0x02 0x03 0xB0
- 5. Relay momentary(Relay COM connect to NO,disconnect after 200MS) Channel 1 : 0x55 0x56 0x00 0x00 0x00 0x01 0x04 0xB0 Channel 2 : 0x55 0x56 0x00 0x00 0x00 0x02 0x04 0xB1
- ✮Product introduction: The LCUS-2 USB relay module is equipped with a USB-to-serial chip and microcontroller with stable performance. It can use serial debugging software on the computer to send serial commands to control the opening and closing of the 2-way relays.
- ✮Features: 1. Onboard 8-bit high-performance microcontroller chip 2. Onboard CH340 USB control chip 3. Onboard power LED indicator and relay status LED indicator. 4. Support relay switch status query 5. On-board 2-way 5V, 10A/250VAC, 10A/30VDC relay, the relay has a long life and can be continuously pulled in 100,000 times 6. The module has overcurrent protection and relay diode freewheeling protection functions 7. Board size: 50*40mm
- ✮Instructions for use: 1. Connect the USB relay module to the computer, and install the driver for the CH340 USB to the serial port chip. 2. Open the serial port debugging software such as STC-ISP and SSCOM32, select the baud rate of 9600, and send A0 01 01 A2 and AO 02 01 A3 in hexadecimal (hex) format to open the first and second channels respectively. relay; send AO 01 00 A1 and AO 02 00 A2 in hexadecimal (hex) form to close the first and second relays respectively.
- ✮3. Relay status query: send FF in hexadecimal (hex) format to query, the data width returned by the serial port is 20 bytes (10 bytes for each channel), if the first channel is open, the second channel When it is off, querying the relay status will return: "CH1: ON IrInCH2: OFF In
- ✮LCS-2 type dual-channel 2-channel USB relay module: send in hexadecimal (hex) form, you can choose to send manually or automatically. Packing List: 2PCS Dual USB Relay Module
- NOYITO 4-Channel Micro USB Relay Module is equipped with a stable USB to serial port chip and a microcontroller. It can use the serial port debugging software to send serial commands on the computer to control the opening and closing of the 4-channel relay.
- Onboard high performance microcontroller chip, CH340 USB control chip. Relay ON/OFF status query command: 0xFF.
- 【IMPORTANT TIPS】Power supply voltage: DC5V. Support USB power supply/external power supply switching. Toggle the switch to "Usb_P" for USB power supply, and toggle the switch to "Ext_p" for external power supply.(External power supply interface: connect to the power supply 5V, because the output current of the USB port is limited, it is recommended to use an external power supply when using more than 2 relays)
- On-board 5V relay, 10A/250VAC, 10A/30VDC relay, long relay life, can work 100,000 times continuously.
- Module with overcurrent protection and relay diode freewheel protection.With power LED indicator and relay status LED.
- The product operation guide can be obtained in the product guide and document. This Raspberry Pi expansion board supports Raspberry P
- The Relay Board gives your Raspberry Pi board the ability to control high voltage/high current devices, and easily makes normal home appliances become intelligent. Can be accessed programmatically or directly by shell. Up to 4 layers can be stacked.
- Switch the I2C address of the device through the DIP switch on the circuit board to ensure that the four-layer module gets different addresses, thus avoiding the problem of address duplication.
- The 4 Channel Relay uses high-quality relay modules combined with the most popular microcontroller technology to communicate with the Raspberry Pi. You can use mulitiple relay modules stacked together to add many channels; You can stack up to four layers.
- The 4 Channel module is very fast, easy to install, and supports multi-language development, making it ideal for smart home projects
- MHCOZY 4 channel 5V 12V 24V 32V ewelink wifi relay module,low voltage clean contact wifi switch,bluetooth pairing,with 2.4G remote control(without battery,model cr2032) and ABS case included,extra bluetooth remote function,once configured with ewelink app by 2.4G wifi,if the relay lose wifi connection,you can control it with ewelink app by bluetooth
- 3 working modes: Inching Self-locking Interlock. can be used for wifi button to remote Garage Door Opener by phone.set working mode by channel in ewelink app, and rename each channel,DIY smart shutter switch, set inching time from 0.5 second to 1 hour in ewelink app
- Timing and Status Real-time Monitor. Smart Scene: Trigger on/off by temperature, humidity or other environmental conditions,It supports 8 group timing function and Share Control with Family
- Easily Share Function,Share Control with Other eWelink Accounts,Invite Family to Enjoy Free Remote Contorl,Free app remote(Invitees need to download and login in their eWelink), Both Android and IOS can search ewelink and download, register and control your home appliances.support 2.4G WiFi only,if your router with dual bands and same SSID, please close 5G firstly,or change to different SSID.
- Voice Control,works with Alexa Google Home Nest smartThings Siri, Link "eWeLink Smart Home Fan" capability. You can request Alexa or Google assistant to turn your devices on / off.Remote ON/OFF Your Lights Garage Door from anywhere by Phone
- The module uses HID technology, without any driver, plug and play. Support WIN10 ，7, XP 32-bit, 64-bit system, easy to use simple.
- Onboard square USB interface, stable connection; use of high-performance USB control chip; use dedicated relay driver chip ULN2803, relay work more stable;
- Power outlet and terminal, two access power mode convenient and flexible. After connecting the power, even if the computer shut down or USB from the computer pull out, the relay can also maintain the set state.
- 【NOTE: The 1-Channel 2-Channel module does not require an external power supply. 4-Channel 8-Channel modules require an external module power supply. 】
- PCB size: 71.6mm * 65.3mm, fixed hole size: 3mm, fixed hole center moment: 67.4mm * 61.3mm.
Consider the Following Factors Before Select usb 4 channel relay board.
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What To Consider When Choosing A usb 4 channel relay board
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Be sure to consider the functionality of a usb 4 channel relay board before making a purchase. A usb 4 channel relay board's functionality is usually determined by the specifications it contains. As the specs become more sophisticated, the functionality increases.
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