Top 8 Best Usb Relay

8 SPDT relays SRD-12VDC-SL-C. Supported by our software. Extra PCB openings for better voltage isolation. Doubled high current tracks.

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, 10A250VAC, 10A30VDC 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 ASINB09RGTSHHW. NOYITO 4-Channel Micro USB Relay Module ASINB09RGVQXXT.

Can adjust 0-24 seconds delay time with potentiometer, which is convenient to complete.. Two Trigger Mode Provide an external signal by TRIG, or light touch trigger button.. 5-30V wide work voltage, with terminal and micro USB two power supply modes.. With over current protection, pull-up and filter circuit designed mode signal terminal block, strong ability of anti-jamming, suitable for industrial control.. With relay pull indicator light, can directly reflect the current work status..

Easy to use The USB trunk module uses HID technology and does not require any drivers, plug and play. Support WIN7, XP 32-bit, 64-bit system, easy to use.. Stable performance on-board square USB interface, military-grade double-sided circuit board, stable connection use high-performance USB control chip use special relay to drive chip, relay work is more stable. Two kinds of access the power socket and terminal of the serial port control relay module, the two access power modes are convenient and flexible. When the power is connected, the relay can remain set even if the computer is turned off or the USB is removed from the computer.. LED display Onboard LED power indicator and relay status indicator.. Note Due to the characteristics of the USB protocol, this module is not suitable for applications with large electromagnetic interference If you want to use it, please do electromagnetic shielding..

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, 10A250VAC, 10A30VDC 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 5040mm. 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 ONOFF status query command 0xFF.. IMPORTANT TIPSPower supply voltage DC5V. Support USB power supplyexternal 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, 10A250VAC, 10A30VDC 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..

WIFI Smart life tuya app remoteVoice controlBluetooth control,1 channel 12v Smart Life wifi relay module,automate your garage door light with Alexa Google home,with ABS case included. Easy to setup with low voltage USB 5V or DC 7-32V,add Smart WIFI control to your home,support 2.4G wifi only,once powered on,your phone bluetooth will find it asap,tap to configure with Smart life app directly. Widely Usage,12V Google home relay,default is WIFI app remote,to active bluetooth control,disconnect wifi for the relay,self lockingonoff inching momentary mode adjustable.Tuya relay is dry contact,without voltage in output,it works as wireless button in inching mode,as wireless switch in self-lock latching mode. Schedule Timing function and share control,create schedule smart scenes,support countdownsunrisesunsetloop timer,happy share control with family. Voice control,work with alexa assistant Ifttt Nest,use your voice command control when busy.

16 on board 12V SPDT Relays. 7A Maximum Switching Current. 10 TTL 3.3VCompatible GPIOs. 5 Analog Input ChannelMultiplexed with GPIOs.

When the board is connected to the PC and the PC is restarted, the relays will be toggled several times. This is because of the structure of the FTDI chip. The device must be supplied with 12 VDC to work. Extra PCB openings for better voltage isolation. Doubled high current tracks. There is no protection against reversed voltage If the VCC12V and GND are reversed the board will be damaged.