6 Best
Pc Board Relays
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Product Highlights- This 8 channel usb controlled relay module is used the hid technology, so there is no need to install any driver in windows system. it's convenient and very easy to use.
- Home automation
- If you nedd the soft and c++ code to control this device, just contact us on amazon!
- Robotics control home automation, controller power supply
- Control doors and windows via windows system
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Product Highlights
- Standard interface that can be controlled directly by microcontroller (aduino , 8051, avr, pic, dsp, arm, arm, msp430, ttl logic)
- Indication led's for relay output status
- 5v relay interface board, and each one needs 15-20ma driver current
- Control dc or ac signals can control the 220v ac load
- Useful to control a motor, a led strip, or any other module using iduino. how to use it: just connect a digital output of your iduino to your relay module, and you can control a power-demanding appliance with the digital signal provided by your iduino.
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Product Highlights
- Relay module: triode drive | increasing relay coil | 8550 transistor-driven | strong driving ability | fixed bolt hole | easy installation | diode effusion protection | short response time | board mode selection | real-time working status indicator | pull-down circuit | high impedance controller pin || nodemcu: opensource iot platform | easily programmable | cost effect...
- This 4-channel relay module can be used to control various appliances, and other equipments with large current. it is ideally suited to control larger voltages in your project through wi-fi. the nodemcu is an open-source firmware and development kit which helps you prototype your iot product with few lua script lines. the jumper wires can be used for electronic projects...
- A relay is an electrically operated switch having a set of input terminals for a single or multiple control signals and a set of operating contact terminals. the 4-channel relay module by robotbanao has maximum relay output of 250v ac and 5v/10a dc. nodemcu is built on the esp8266 technology to take advantage of the abundant resources available on the web. this comes wi...
- Dimensions: 4-channel relay module(lxwxh):75x55x18mm | nodemcu (lxwxh):4 × 4 × 3cm | jumper wire length:200mm
- Relay module: no. of channels:4 | relay operating voltage:3.3v to 5v | switching voltage (vac):250@10a | switching voltage (vdc):30@10a | trigger voltage (vdc):5 | trigger current (ma):20 | dc or ac signal, control, you can control the 220v ac load | trigger mode: high level || nodemcu: output power(dbm):19.5 @802.11b mode | support:sdio 1.1/2.0, spi, uart | ic:ch340g u...
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Product Highlights
- 2-channel relay module: power indicator: green | relay status indicator: red | 8550 transistor-driven | strong driving ability | fixed bolt hole | easy installation | diode effusion protection | short response time | board mode selection | real-time working status indicator || nodemcu: opensource iot platform | easily programmable | cost effective | simple to use | wi-f...
- This 2-channel relay module can be used to control various appliances, and other equipments with large current. it is ideally suited to control larger voltages in your project through wi-fi. the nodemcu is an open-source firmware and development kit which helps you prototype your iot product with few lua script lines. the jumper wires can be used for electronic projects...
- A relay is an electrically operated switch having a set of input terminals for a single or multiple control signals, and a set of operating contact terminals. the 2 channel relay module by robotbanao can be used to activate up to 250v ac and 30v dc. nodemcu is built on the esp8266 technology to take advantage of the abundant resources available on the web. this comes wi...
- Dimensions: 2-channel relay module (lxwxh):43x43x17mm | nodemcu (lxwxh):4 × 4 × 3cm | jumper wire length:200mm
- 2-channel relay module: operating voltage (vdc):2.5~5.5 | trigger voltage (vdc):5 | trigger current (ma):20 | switching voltage (vac):250@10a | switching voltage (vdc):30@10a | operating temperature (°c):-40 to 85 | storage condition (℃):-65 to 125 | transmission distance:400m (max.) | baud rate:9600 || nodemcu: output power(dbm):19.5 @802.11b mode | support:sdio 1.1/2....
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